2014 | NORTHWEST
FALL/WINTER
THE OFFICIAL PUBLICATION OF THE NORTHWEST CHAPTER OF
THE NORTH AMERICAN SOCIETY FOR TRENCHLESS TECHNOLOGY
NASTT-NW
PM #40065075
CONFERENCE
November 13-14, 2014
Fantasyland Hotel, Edmonton, AB
PIPE BURSTING SHORT COURSE I DESIGN/BUILD CONSIDERATIONS FOR A TUNNEL PROJECT IN SK
PRESSURE GROUTING
FOR UTILITIES
Custom Grouts
Phone:
(780) 469-1234
Abandonments
Liners
Void Filling
Shotcrete
Fax:
(780) 438-4116
We s t e r n C a n a d a ’s G r o u t i n g S p e c i a l i s t s S i n c e 19 5 2
www.mudjacking.com | TF: 1-866-661-6726 | [email protected]
Trenchless CIPP Renewal Technologies
T-Liner® 3.0 with
Insignia™ Gasket Sealing
VAC-A-TEE®
Cleanout
Lateral Lining
Insignia™ End Seals
for Mainline CIPP
CIPMH™ Lining
Lining Equipment
Providing ASTM compliant CIPP technology, industry leading products, and state-of-the-art equipment.
Mainline to Lateral Connections
•
•
T-Liner ®, Shorty™, and Stubby™ One-Piece Lateral
Connection Lining Systems
Insignia™ O-Ring and Hydrohat Compression
Gaskets
Lateral Lining
•
Performance Liner ® CIPP Lining
•
VAC-A-TEE Trenchless Cleanout Installation
®
Mainline Repair
•
•
Sectional CIPP Lining
Insignia End Seal Compression Gaskets
Manhole Rehabilitation
•
CIPMH™ Full Depth Manhole Lining
•
CIPMH Manhole Chimney Lining
CIPP Equipment
•
•
Fully Equipped, Turnkey Trailer Systems
Schwalm™ Robotics
•
Picote™ Cutter Systems
®
TECHNOLOGIES
Phone: (815) 433-1275 Email: [email protected]
Web: lmktechnologies.com
2014 | NORTHWEST
NASTT-NW
BOARD OF DIRECTORS
CHAIR
ALAN MILLER
Associated Engineering
PAST CHAIR
DAN WILLEMS
City of Saskatoon
SECRETARY
BEN CAMPBELL
Neptune Coring
THE OFFICIAL PUBLICATION OF THE NORTHWEST CHAPTER OF
THE NORTH AMERICAN SOCIETY FOR TRENCHLESS TECHNOLOGY
IN THIS ISSUE:
TREASURER
KEITH MOGGACH
Royal Pipe Systems
DIRECTOR
CRAIG VANDAELLE
Michels Canada Co.
15
DIRECTOR
SIRI FERNANDO
City of Edmonton
DIRECTOR
HARTLEY KATZ
Stantec Consulting Ltd.
DIRECTOR
CHARLES PULLAN
City of Calgary
DIRECTOR
ALI BAYAT
University of Alberta
NASTT CANADA
PACIFIC REPRESENTATIVE
DAVE KRYWIAK
Stantec Consulting Ltd.
www.kelman.ca
Managing Editor: Monique Doyle
Design/Layout: Kristy Unrau
Marketing Manager: Chad Morrison
Advertising Coordinator: Stefanie Hagidiakow
Return undeliverable Canadian addresses to:
[email protected]
37
29
12
PIPE BURSTING GOOD
PRACTICES SHORT COURSE
DEPARTMENTS:
15
2014 NW TRENCHLESS
CONFERENCE IN EDMONTON
MESSAGE FROM THE NASTT CHAIR................. 8
29
DESIGN/BUILD
CONSIDERATIONS FOR
A TUNNEL PROJECT IN
SASKATOON
37
MESSAGE FROM THE NASTT-NW CHAIR�������� 6
MESSAGE FROM
THE MAGAZINE COMMITTEE...........................10
REACH OUR ADVERTISERS................................50
2014 | NORTHWEST
TO REHABILITATE OR REPLACE
THE NORTH KILDONAN
FEEDERMAIN
FALL/WINTER
THE OFFICIAL PUBLICATION OF THE NORTHWEST CHAPTER OF
THE NORTH AMERICAN SOCIETY FOR TRENCHLESS TECHNOLOGY
VIEW US ONLINE
NASTT-NW.COM
Publication Mail Agreement #40065075
NASTT-NW
CONFERENCE
PM #40065075
©2014 Craig Kelman & Associates Ltd.
All rights reserved. The contents of this
publication, which does not necessarily reflect
the opinion of the publisher or the association,
may not be reproduced by any means, in
whole or in part, without the prior written
consent of the Northwest Chapter of the North
American Society for Trenchless Technology.
November 13-14, 2014
Fantasyland Hotel, Edmonton, AB
PIPE BURSTING SHORT COURSE I DESIGN/BUILD CONSIDERATIONS FOR A TUNNEL PROJECT IN SK
ON THE COVER: The Muttart Conservatory and Parliament
buildings of Edmonton, AB on a cold winter night.
BACK TO CONTENTS
NASTT-NW.COM | 5
MESSAGE FROM THE NASTT-NW CHAIR
FOLLOWING IN GOOD FOOTSTEPS
I
am happy to introduce myself
as the new NASTT-NW Chapter
Chair of the Board for the next
two years, and I am very honoured to have
this position. Moving into such a role can
sometimes be overwhelming, but with the
smooth path that has been paved by the
previous Chairs over the last two decades,
the transition is actually very seamless.
All of the previous Chairs have provided
such outstanding leadership that we find
ourselves as one of the more successful
chapters within NASTT. In that regard, I
have big shoes to fill.
I must also welcome and congratulate
the new Board of Directors for 2014. The
Chapter is well represented, as I know the
Board will work hard to provide benefit to
the Chapter.
Even though there are changes in the
Board every year, there is also a lot that
remains constant. This includes another
season of technical lunches in both
Edmonton and Calgary, which started in
September, and will again continue until
April next year. The Chapter is also once
again hosting the Northwest Trenchless
Conference this year. This event is being
held in Edmonton on November 13 and
14 at the Fantasyland Hotel. This will be
the 18th annual year of this event and will
include presentations and a tradeshow
on November 13 and the NASTT Pipe
Bursting Good Practices Short Course
on November 14. In conjunction with
the conference, the Chapter will also be
presenting the 2014 Northwest Trenchless
Project of the Year, which best exemplifies
“One new
activity that
is occurring
this year is a
Gener al Meeting
on Wednesday
November 12.”
the many outstanding trenchless projects
that are constructed within our Chapter
every year. The conference really does
promise to provide something for everyone
in the trenchless industry.
One new activity that is occurring this
year is a General Meeting on Wednesday
November 12, which is being held in
conjunction with this year’s trenchless conference. This is our first attempt at holding
this meeting in a local setting in order to encourage attendance. I hope to see you there,
as I encourage you to come and hear what
the Chapter is doing, and voice your opinion regarding Chapter matters. Please look
for the announcement in your mailbox.
I truly hope everyone has an opportunity to attend as many of these events as
possible, and benefit from the knowledge
and excellent networking opportunities
that are made available. I look forward
to talking with as many of you as possible
over my term and if you have an interest
in becoming involved, or wish to provide
suggestions on how to improve our
Chapter, please do not hesitate to contact
me at [email protected].
Alan Miller, P. Eng.
Chair, NASTT – Northwest Chapter
6 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
MESSAGE FROM THE NASTT CHAIR
A VERY GOOD YEAR
I
t has been a great year for NASTT,
and our record-breaking 2014
No-Dig Show held in Orlando,
Florida was definitely a major highlight.
We had more than 1,800 attendees, an
excellent technical program, and an
exceptionally successful Educational
Fund Auction, all thanks to our dedicated
volunteer members including your
Northwest Chapter members.
This year’s 13th Annual Educational
Fund Auction and Reception was a Pirates
of the Caribbean-themed night of fun
and fundraising. To date, the auctions
have raised more than $750,000 for
educational initiatives like sponsoring
students’ attendance at NASTT’s No-Dig
Shows, awarding scholarships, publishing trenchless resources, and providing
targeted training courses to the membership at-large.
“You are truly Trenchless Champions, and I look
forward to seeing you in Denver next year.”
8 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
MESSAGE FROM THE NASTT CHAIR
“The Northwest Chapter is home to sever al
trenchless advocates who serve on our 2015 Progr am
Committee including Ali Bayat, David Krywiak,
Jason Lueke, Jim Murphy, and Cr aig Vandaelle.”
We are excited about the upcoming
2014 Northwest Chapter Trenchless Conference in Edmonton, Alberta on November 13. This will be the Chapter’s 18th
annual conference! Under the leadership
of the Chapter Chair, Alan Miller, this oneday conference offers excellent learning
and networking opportunities for trenchless industry professionals and includes
several technical presentations and a trade
show. Technical presentations will cover
various trenchless topics.
On November 14, the Chapter will
offer NASTT’s Pipe Bursting Good Practices
Course taught by Northwest Chapter
member and volunteer instructor Dr. Jason
Lueke, along with Collins Orton. This
course provides an in-depth overview of
pipe bursting and covers important topics.
We hope to see you there!
Plans for NASTT’s 2015 No-Dig Show
in Denver, March 15–19, are well under
way. The technical program will have
many valuable and informative presentations, and the exhibit hall will be full of
new products and services to support the
trenchless industry. We will also host our
Good Practice training program, which includes seven different specialized full- and
half-day courses.
The Northwest Chapter is home to
several trenchless advocates who serve
on our 2015 Program Committee including Ali Bayat, David Krywiak, Jason
Lueke, Jim Murphy, and Craig Vandaelle.
They are sure to bring you an excellent
technical program.
Again, I cannot thank our Northwest
Chapter volunteers and members enough
for your dedication and support. You are
truly Trenchless Champions, and I look forward to seeing you in Denver next year.
Derek Potvin
NASTT Chair and
International Representative
BACK TO CONTENTS
NASTT-NW.COM | 9
MESSAGE FROM THE MAGAZINE COMMITTEE
HIGHLIGHTS OF THIS ISSUE
W
elcome to the fall issue of the
Northwest Trenchless Journal.
This issue of the magazine
provides you with everything you need
to know about our upcoming annual
conference in Edmonton in November.
A City Well Built
For full details, see pages 15–20.
We hope you can make it out to
Edmonton and the Fantasyland Hotel
to join us for the 2014 Northwest
Trenchless Conference. We look
forward to seeing you there!
Also in this issue, we include
two regional papers from this year’s
No-Dig Show.
The next issue of the Northwest
Trenchless Journal is scheduled for
distribution in May and will feature,
in detail, the 2014 Project of the
Year, which will be announced soon
at the conference.
If you would like to submit a
project paper or other content and
ideas for an upcoming issue of the
Chapter magazine, please contact me
at [email protected].
Your editorial submissions are welcome
and due by April 8, 2015.
Be sure to find us online
and join our LinkedIn group at
www.linkedin.com/groups/NASTTNorthwest-Chapter-4430433.
Craig Vandaelle
Michels Canada Co.
Chair, Magazine Committee
Under every great city lies reliable infrastructure that works safely and
efficiently for its communities and businesses.
The City of Edmonton Drainage Services team specializes in the use of
state-of-the-art trenchless technology to build and maintain underground
infrastructure in developed areas.
www.edmonton.ca/drainage
10 | NASTT-NW JOURNAL |
Fall/Winter
2014
“This issue
of the magazine
provides you
with everything
you need to
know about
our upcoming
annual
conference
in Edmonton
in November.”
BACK TO CONTENTS
1-866-976-2626
www.ivisinc.com
Servicing the Underground Infrastructure Since 1996
Est. 1996
NASTT-NW presents
THE PIPE BURSTING GOOD PRACTICES
SHORT COURSE
FRIDAY, NOVEMBER 14, 2014 – EDMONTON, ALBERTA
The Northwest Chapter of the North
American Society for Trenchless Technology is
pleased to host this short course at our annual
conference at the Fantasyland Hotel at West
Edmonton Mall, in Edmonton this November.
DESCRIPTION
This course provides an in-depth overview of pipe bursting and covers four topic areas: the types, methods
and application of pipe bursting; planning and preliminary design of a pipe bursting job; design and
construction considerations; and troubleshooting and problem solving.
Pipe bursting is the perfect no-dig process to replace an existing line with a complementary new,
larger pipe – without excavating. This construction technique is recognized as one of the only methods of
trenchless rehabilitation that replaces an existing line with a completely new pipe, providing a total pipe
replacement, and allows for the replacement of an existing pipe with a new line of equal or larger diameter
– to maintain or increase flow capabilities.
WHO SHOULD ATTEND?
The target audience includes municipal engineers, utility personnel, designers, managers, and contractors
involved with the construction, rehabilitating, and managing of underground utilities.
REGISTRATION IS EASY!
Register as an attendee through the Northwest Trenchless Conference online registration page at
http://events.SignUp4.net/attendee. You can also register manually through the same registration page by
printing the completed Registration Form and then mailing it with your payment as indicated.
PRICING
NASTT or TAC Members (Early Bird) – $325 or (Regular) – $350
Non-Members (Early Bird) – $425 or (Regular) – $450
Student, Valid I.D. Required – $150
For more information about this short course, please visit the
Northwest Trenchless Conference page on our website at www.nastt-nw.com.
horizontal boring & tunneling
guided boring & micro tunneling
pipe ramming & directional drilling
World’s Largest
Auger Boring Machine
Large Down Hole Hammers
for Boulders and Rock
World’s Largest
Pipe Rammer
World’s Largest
Pilot Tube Tunnel
there is no substitute for experience
with well over 100 years of combined management
experience together with the largest modern fleet of
equipment in the northwest makes us your best partner
for trenchless construction.
– Malcolm Bachand Pres.
bus: 250.573.7814 fax: 250.573.7815
cell: 250.371.1252
email: [email protected]
PRODUCTIVITY RUNS IN THE FAMILY.
Brandt Tractor features a full line of DitchWitch and
Hammerhead equipment to meet all your underground
construction needs. Industry-leading product performance keeps you
productive and profitable while our team of parts and service experts deliver
legendary customer support when and where you need it, which now includes
27 branches, nationwide. That’s Powerful Value. Delivered.
MINI SKID STEERS
DIRECTIONAL DRILLS
brandt.ca 1-888-227-2638
VACCUUM EXCAVATION
PRODUCTS
TRENCHLESS
INSTALLATION
SOLUTIONS
NASTT-NW
CONFERENCE
November 13-14, 2014
Fantasyland Hotel, Edmonton, AB
2014 NORTHWEST TRENCHLESS CONFERENCE
By Alan Miller, P. Eng., 2014 NW-NASTT Trenchless Conference Chair
This is a friendly reminder that the 2014 Northwest Trenchless
Conference is being held in Edmonton on November 13, 2014
at the Fantasyland Hotel. The early-bird registration deadline of
October 31 is almost here. This is the 18th annual presentation
of this highly successful event. The conference is a co-presentation of the North American Society for Trenchless Technology
– Northwest Chapter and the Tunneling Association of Canada.
This one-day conference offers excellent learning and
networking opportunities for trenchless industry professionals,
and includes several technical presentations and a trade show.
Technical presentations will cover various trenchless topics
including tunneling, horizontal directional drilling, lining, and
other related subjects.
On Friday, November 14, NASTT will be hosting the Pipe
Bursting Good Practices short course. This course provides
an in-depth overview of pipe bursting and covers four topic
areas: the types, methods and application of pipe bursting;
planning and preliminary design of a pipe bursting job; design
and construction considerations; and troubleshooting and
problem solving. Pipe Bursting is the perfect no-dig process
to replace an existing line with a complementary new, larger
pipe - without excavating. This construction technique
is recognized as one of the only methods of trenchless
rehabilitation that replaces an existing line with a completely
new pipe, providing a total pipe replacement and allows for
the replacement of an existing pipe with a new line of equal
or larger diameter – to maintain or increase flow capabilities.
The target audience includes municipal engineers, utility
personnel, designers, managers and contractors involved
with the construction, rehabilitating and managing of
underground utilities.
REGISTRATION IS EASY!
Register as an attendee through the Northwest
Trenchless Conference online registration page at
http://events.SignUp4net./attendee. You can also register
manually through the same registration page by printing
the completed Registration Form and then mailing it
with your payment as indicated.
For more information about the conference and short
course, please visit the Northwest Trenchless Conference
page on our website at www.nastt-nw.com.
I sincerely hope to see you there.
BACK TO
TO CONTENTS
CONTENTS
BACK
NASTT-NW.COM | 15
Safety isn’t just a statement to us.
We’ve pushed the boundaries of
ensuring our worksites are the safest
in the industry and with our propriety
Exit Side Safety Unit (ESSU), we’ve
invented a safer, more efficient pipe
handling process than anything in the
business.
When it comes to safety, we’re
GOING TO
GREATER
LENGTHS
16 | NASTT-NW JOURNAL |
Fall/Winter
2014
Going to greater lengths. It’s not just
a tagline, it’s our everyday mission.
www.thecrossingcompany.com
BACK TO CONTENTS
NASTT-NW
CONFERENCE
The North American Society for Trenchless Technology – Northwest Chapter will be presenting the 2014 Northwest Trenchless Conference in Edmonton on November 13, 2014.
This will be the 18th annual presentation of this event.
• November 12, 2014 – General Meeting (open to all NASTT members)
• November 13, 2014 – Conference & Tradeshow
• November 14, 2014 – Pipe Bursting Good Practices Short Course
• Location: Fantasyland Hotel, Edmonton, Alberta
The conference and tradeshow will be held in the Beverly Hills Ballroom.
The general meeting and the short course will be held in the Piesporter Room.
REGISTRATION DETAILS
Conference registration – November 13, 2014:
Short Course registration – November 14, 2012:
NASTT Member (membership will be confirmed):
$150.00 (early-bird – on or before October 31)
$200.00 (regular)
NASTT Member (membership will be confirmed):
$325.00 (early-bird – on or before October 31)
$350.00 (regular)
Non-member:
$225.00 (early-bird – on or before October 31)
$300.00 (regular)
Non-member:
$425.00 (early-bird – on or before October 31)
$450.00 (regular)
Student:
$50.00
Student:
$150.00 (valid student ID card required)
To register, go to http://events.SignUp4net./attendee.
Note: Registration for the short course is not included with general registration for the 2014 Northwest
Trenchless Conference, and vice versa. Pre-registrations will be accepted until November 7, 2014.
FANTASYLAND HOTEL BALLROOM AND CONFERENCE CENTER
LEVEL THREE
B
6
7
9
10
ELEVATORS
A
16 15
BEVERLY HILLS
BALLROOM
14
12
PEDWAY
C
E
5
ELEVATORS TO
EUROPA BOULEVARD
D
Trade Show & Reception
Beverly Hills Ballroom
(Halls A, B & C)
BACK
BACKTO
TOCONTENTS
CONTENTS
Technical Presentations
Beverly Hills Ballroom
(Halls D & E)
Short Course
Piesporter Room
(Room 5)
NASTT-NW.COM | 17
BD380
Your size, your power, your color... we’ll build a custom high performance directional drill
the way you want it. Barbco has been manufacturing Directional Drills since the mid 90’s.
Since then we have become known as a Manufacturer that “really puts the horsepower
behind the specifications”. Our Directional Drills will exceed your expectations
of how a drill should perform. The reason is simple.
We start with quality components that have stronger
duty cycles and couple them to higher engine
horsepower creating unmatched performance
that the operator can actually feel
when on a tough pull.
BD80SC
BD120SC
BD60SC
Visit barbco.com or
Call 1-800-448-8934
BD200SC
DIRECTIONAL DRILLS
315 Pekin Rd. S.E. • East Canton, Ohio 44730-9462
NASTT-NW
CONFERENCE
SPONSORS AND EXHIBITORS
Your participation in the tradeshow
or through sponsorship of the conference will provide an excellent opportunity to promote your company,
demonstrate your commitment to
the future of this growing industry,
and display your good corporate
citizenship by generously giving
back to the industry.
If your company is interested in
sponsoring the conference or exhibiting at the trade show, the sponsor
registration form is available through
the Chapter website, as is exhibitor
registration. Sponsor/exhibitor registrations received after November 1
will not be included in the conference
program. Sponsor/exhibitor registrations received after November 9 may
not be acknowledged on posters and
signboards at the conference.
Two delegate registrations will
be given to each sponsor, as well
as to each single booth exhibit
space. Sponsors and exhibitors will
be acknowledged on table cards,
signage, and slideshows during
breaks at the conference. Exhibitor booth assignment will be on a
first-come, first-serve basis. Special
event sponsorship opportunities,
such as for meals or coffee breaks,
are limited, so early sponsorship
registration is encouraged.
BACK TO
TO CONTENTS
CONTENTS
BACK
This one-day conference offers excellent learning and networking opportunities for trenchless industry professionals, and includes several technical presentations and a trade show.
Technical presentations will cover various trenchless topics.
Arrive early on November 13 to complete your registration and have breakfast while
checking out the trade show. Prize draws will be held throughout the day.
NOVEMBER 13 CONFERENCE AGENDA:
7:30 AM Registration, Tradeshow, and Breakfast (complimentary for registered delegates)
8:30 AM Call to Order and Welcome Address – Conference Chair
8:35 AM Keynote Address: Paul Giannelia, Enbridge Pipelines Inc.
9:00 AM Polaris Expansion (PX6)
9:25 AM How Did Direct Condition Assessment Save Calgary and Other Municipalities Millions
9:50 AM Pipe Express & VSM Technology
10:15 AM Coffee Break
10:45 AM Long-Term Segmental Lining Loads
11:10 AM CN Railyard Sanitary Sewer Relocation
11:35 AM 2014 Northwest Trenchless Project of the Year Award Presentation
11:40 AM Project of the Year Technical Presentation
12:05 PM Lunch
1:20 PM Mud Flow Pattern During Pullback of Horizontal Directional Drilling Pipe Installation
1:45 PM CMP Storm Drain Structural Assessment
2:10 PM Mesa Trunk Sewer
2:35 PM Coffee Break
3:05 PM Design & Management of Multiple Trenchless Crossings:
ENMAX Sheppard Energy Centre Reclaimed Water
3:30 PM City of Calgary Increases Reliability of Infrastructure
Through Bar Wrap Pipe Condition Assessment
3:55 PM Utilities Kingston Pipe Bursting
4:20 PM Closing Remarks – Conference Chair
5:00 PM Conference Social
SHORT COURSE – NASTT’S PIPE BURSTING GOOD PRACTICES SHORT COURSE
In conjunction with the 2014 Northwest Trenchless Conference, the NASTT-NW
Chapter is proud to be presenting NASTT’s Pipe Bursting Good Practices short course.
Please visit the Chapter website at www.nastt-nw.com/ for more information regarding
the short course, including the technical agenda for the day.
Note: Registration for the short course is not included with
general registration for the 2014 Northwest Trenchless Conference.
NASTT-NW.COM || 19
19
NASTT-NW.COM
NASTT-NW
CONFERENCE
2014 PLANNING COMMITTEE
Chair: Alan Miller, Associated Engineering
Vice-Chair: Greg Tippett, Stantec
Dave Krywiak, Stantec
Craig Vandaelle, Michels Canada
Ben Campbell, Neptune Coring
Albert Kwan, City of Edmonton
Siri Fernando, City of Edmonton
Fayi Zhou, City of Edmonton
Carlie Jones, Associated Engineering
Julie van Doesburg, Associated Engineering
Ali Bayat, University of Alberta
Frank Policicchio, City of Edmonton
THANK YOU TO THE FOLLOWING NORTHWEST
TRENCHLESS CONFERENCE EXHIBITORS WHO
ALSO SUPPORT THIS MAGAZINE:
• Akkerman Inc.
• Barbco Inc.
• Clean Harbors Directional Boring Services Ltd.
• IPEX Management Inc.
• IVIS Inc.
• Michels Canada Co.
• Northwest Pipe Company
•Pipelogix
• The Crossing Company
• Underground Pipe Inspectors Ltd.
For general information Contact Alan Miller, Chair – 2014 Northwest Trenchless Conference, by email at [email protected].
Driven for our customer’s success.
For over for ty years, Akkerman has developed,
manufactured and suppor ted quality pipe jacking
and tunneling equipment that accurately installs a
variety of underground infrastructure. We help
contractors explore project solutions for an
extensive range of diameters and geology. Trust
Akkerman to be your par tner, ever y step of the way.
+1 (800) 533.0386 | akkerman.com
20 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
www.terrahdd.com
ENGINEERING
VIEW US ONLINE
NASTT-NW.COM
TERRA
ENVIRONMENT
GEOTECHNICAL
HDD
SOLUTIONS INC.
Scott Gilles – President
Main: 403.452.8396
Cell: 403.304.4233
Email: [email protected]
• CCTV Inspections
• Deflection Test Inspections (Mandrel)
• Sewer Cleaning • Hydro-Vac
• Manhole Inspections • Push Camera Inspection
P: 403.984.9077 • F: 403.984.9078 • E: [email protected]
41-9151 44th Street SE, Calgary, AB T2C 2P7
www.undergroundpipe.ca
BACK TO CONTENTS
Inspection with Precision!
NASTT-NW.COM | 21
22 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
11571-149 Street NW
Edmonton, AB T5M 1W9
drivingstrategicsales.com
(780) 454-2006
experienced in all types and sizes of crossings
Environmental Sensitive Area Crossings
Rivers | Creeks | Ravines
certificate of recognition
latest technology in navigation systems
committed to safety and to our environment
equipped with 80,000 lbs to 330,000 lbs capacity drills
www.precisecrossings.com
Spruce Grove, Alberta | P. (780) 962.6882 | Toll Free. (866) 962.6882
24 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
I go to No-Dig because it is a
,
great environment to recharge
along with an opportunity to
network and get updates on
trenchless innovations.
NASTT’s 2015 No-Dig Show
March 15-19
Colorado Convention Center - Denver, Colorado
•
•
•
•
Technical Papers
Industry Exhibits
Innovations
Networking Events
There’s no substitute for NASTT’s No-Dig Show when it comes to staying in touch and informed!
Ask Babs Marquis, he knows he can get valuable face-to-face time with like-minded professionals
and customers, as well as find all the latest trenchless technologies under one roof at NASTT’s
No-Dig Show. Grow your network of business connections and stay abreast of the latest trenchless
developments at NASTT’s 2015 No-Dig Show!
Pictured above: Babs Marquis, Construction Manager, Jacobs Associates, Burlington, MA
REGISTER to attend NASTT’s 2015 No-Dig Show in Denver, Colorado.
nodigshow.com
A
B
E
H
T
T
E
S
WE
D
E
P
M
U
J
©2012 Digital Control Inc. All rights reserved.
N
E
H
T
D
N
A
,
AR
D
.
T
I
R
E
V
O
TOR.
TEM
A
S
C
Y
O
S
L
G
S
N
LOCATI NEW F SERIEHow much?
D
L
O
R
YOU
F THE mething to us. dible 25%
N
F
I
O
G
%
N
I
5
BR
UP TO 2tem is still worthyssotems or an inctrheat’s how much.
T
E
G
D
s
ys
or,
AN
cating s
locating
e
s Locat
lo
ost
erie
receiv
Your old iscount for m
new F S
aler to ® Series
a
e
r
d
I
fo
d
C
e
cal D
r F5
A 20% on our Eclips
itter.
t your lo f a new F2 o
a
t
t
n
n
u
transm
e
o
c
d
o
m
n
e
ip
dis
a
s
u
e
a
q
urch
ed e
emot
your us towards the p a receiver, r
while
in
e
d
g
a
Tr
din
ystems .
unt
s
lu
o
c
c
g
is
in
in
t
d
a
m
your
system
-art loc
r Syste
-of-the our old, used
Locato
e
t
a
t
s
rid of y
latest in
4/7.
Get the eously getting
ervice 2
s
r
e
n
m
usto
tor
simulta
-class c
distribu
I
ld
r
C
o
D
w
r
by
ct you
Backed
n conta .
io
t
a
m
r
.com
re info
For mo ww.digitrak
w
or visit
®
Digital Control Inc.
Industry leaders. Passionate visionaries. And genuinely nice guys.
(Copyright 2014 by the North American Society for Trenchless Technology. Original presentation given at NASTT’s 2014 No-Dig Show, in Orlando, Florida. All rights reserved.) Reprinted with permission.
Design/Build Considerations
for a Tunnel Project in Saskatoon
Dan Willems,
Special Projects Manager,
City of Saskatoon,
Saskatchewan, Canada
David Taylor,
Vice President,
CH2M HILL Canada Limited,
Calgary, Alberta, Canada
BACK TO CONTENTS
BACK TO CONTENTS
ABSTRACT
The City of Saskatoon has a population of about
240,000 and is currently undergoing significant
growth. It has initiated a development process
that, when complete, is planned to include eight
new neighbourhoods in an area known as the
East Sector. This area consists of approximately
2,533 hectares (6260 acres) of land, which
will accommodate another 82,000 people. The
McOrmond Drive Sanitary and Storm Sewer
Trunks project is being completed by the City
to provide future wastewater and stormwater
servicing for the East Sector development.
The total length of each trunk sewer is approximately 1,500 meters (~5,000 feet), with almost parallel alignments below a major arterial
roadway with existing residential development
on both sides. The diameter of the storm sewer
trunk is 2,400 millimeters (~8 feet), and the
diameter of the sanitary sewer trunk is 1,200
millimeters (~4 feet). The depth of the trunk
sewers is approximately 13.5 meters (~44 feet)
below ground surface. Due to the depth, and
the roadway above, an open trench method of
construction was disallowed, as the extensive surface
disruption from this method would have resulted
in severe disruption to the travelling public and the
nearby residential neighbourhoods. Consequently,
the decision was made to install these services using
tunneling methods.
The City reviewed the various procurement models for this tunnel project and selected a design/build
model as offering best value to the City in terms of
balancing cost and risk.
Tunneling inherently involves risk. This usually
translates to additional cost, particularly with a design/build approach, unless the risk is allocated fairly
between the owner and the contractor. An essential
part of this risk allocation is for the owner to provide
a geotechnical baseline report that sets out the baseline conditions for the contractor to price the work.
This paper will provide details of the overall
procurement process, firstly of the owner’s engineer
selection, and secondly the design/build contractor
prequalification and subsequent competitive bidding
process, from the perspective of the City and its
owner’s engineer and provide some of the lessons
learned with this process.
NASTT-NW.COM | 29
INTRODUCTION
The City of Saskatoon is somewhat unique
among western Canadian cities in that it is
a major land developer for new developments within city limits. The City manages the design and construction of trunk
sewers, primary water mains, and arterial
roadways for all local land developers.
The McOrmond Drive Sanitary and Storm
Trunks project is one such City-initiated
project that will provide future servicing
for the East Sector development, an area
of over 2,500 hectares (6,200 acres) of
land that will accommodate an additional
82,000 residents at full build-out.
PROCUREMENT PROCESS AND SEQUENCE
Much of the trunk utility installation in
the City uses a traditional design/bid/build
delivery model. However, the City has embraced an alternative procurement process
using a design/build (D/B) model on other
recent major projects with good success.
The preparatory and conceptual design
work carried out by the City determined
that, for this project, a D/B delivery model
offered the City a better balance of cost
and risk than a traditional delivery model,
so the D/B model was selected as the preferred procurement process. In addition,
the City completes most of its trunk sewer
design engineering for its capital projects
using internal resources. Due to its limited
prior experience with major tunneling
projects of this nature, and following a
wider review of risk control measures,
the decision was made to adopt the D/B
delivery model for this project to mitigate
the City’s exposure to design and construction risks,
As with its previous D/B projects, the
City’s sequence to carry out this delivery model was to first select an owner’s
engineer, then, with the owner’s engineer’s
assistance, to select the D/B proponent.
OWNER’S ENGINEER SELECTION
The City adopted a two-stage approach in
the selection of the owner’s engineer. This
entailed a Request for Qualifications (RFQ)
as a first stage to select a shortlist of consultants best qualified to undertake the project
for the City, followed by a Request for Proposal (RFP) as a second and final stage.
STAR-PLEX
THE NEXT GENERATION OF HDD FLUID SYSTEMS
STAR-PLEX is a specialty low-shear-rate-viscosifier designed for all water-based
bentonite drilling fluid systems.
Experience high rates of penetration through coal (anionic) zones and easily manage
rheological properties on-the-fly by just adding bentonite.
^ STAR-PLEX system easily carries large solids to
surface like this chunk of coal
< STAR-PLEX system easily builds into a mud that
is as robust as it is simple to work with
GET MORE HDD PERFORMANCE FOR LESS
STAR-PLEX compared to
other mixed-metal systems—
realize cost savings of up to 39%
[email protected]
30 | NASTT-NW JOURNAL |
STAR-PLEX compared to
xanthan-gum and PAC systems—
realize cost savings of up to 45%
CALL 403-690-2703
Fall/Winter
2014
www.northstarfluids.com
The RFQ was issued in April 2011,
and a shortlist of four firms was selected
in June 2011. The RFP was issued in late
June 2011.
The RFP included a number of key
scope requirements relating to:
• D/B agreement development
• D/B RFQ and RFP development,
evaluation, negotiation, and award
• D/B implementation
The selection of CH2M HILL as the owner’s
engineer was confirmed in late July 2011,
and engineering work began on the project
in August 2011.
DESIGN/BUILD PROCUREMENT
DOCUMENT DEVELOPMENT
The owner’s engineer role involved completing a preliminary design to about the
25% stage along with a preliminary design
report that included assessments and
summaries of design criteria, anticipated
construction methods and equipment,
design-build delivery, topographic survey,
and geotechnical evaluation. The preliminary design drawings were then included
in the RFP as the basis for the D/B proponents to develop a combined price.
Because tunneling, by definition,
involves subsurface construction, it inherently involves risk. One of the critical
functions of the owner’s engineer on a
tunneling project is to assist the owner to
identify the potential risks and to properly
and fairly allocate those risks between
the owner and the contractor. This risk
allocation process starts with developing a
thorough understanding of the subsurface
geotechnical conditions.
A geotechnical investigation program
was initiated with a local geotechnical
firm, P. Machibroda Engineering Ltd., that
resulted in the production of a geotechnical data report (GDR). The GDR is a factual
summary of the conditions encountered,
and the sampling and testing results, based
on standard geotechnical procedures. The
GDR is then used as the basis for generating a geotechnical baseline report (GBR),
which interprets the factual information
to develop a set of design criteria that the
contractor can then rely on in developing
its equipment selection and working methodology, and ultimately its bid price.
This GBR, developed by CH2M HILL,
was the basis of the risk allocation, in that
both the owner and the contractor had the
baseline conditions established in advance
of actual construction work. If conditions
BACK TO CONTENTS
do not change, then the owner has
some certainty that the bid price will
not change. If conditions do change,
the contractor has the assurance that
there is an agreed basis, and design
criteria, on which to negotiate changes
in compensation.
DESIGN/BUILD TEAM SELECTION
The D/B procurement followed a similar
two-stage process to the selection of the
owner’s engineer. The first stage was the
RFQ process to pre-qualify, and develop
a shortlist of, suitable D/B proponents,
followed by the RFP process issued to
the pre-qualified proponents.
It was recognized that each D/B
team would likely be composed of
a tunneling contractor and a design
engineering firm that were not based
in Saskatoon and which could come
from anywhere in North America. It
was imperative, however, that local
Saskatchewan requirements for engineering and contractor certification
would be met for the project, but this
was only a mandatory requirement for
the selected team.
STAGE 1 – RFQ PROCESS
The RFQ was focused on eliciting each
proponent’s experience and qualifications, specifically as applicable to this
project. The RFQ was structured to
obtain responses that were evaluated
on either a pass/fail or a points-scoring
basis. The number of points allocated to
each section, and distribution of points
within each section, was established well
in advance of receiving the qualifications
packages and included in the RFQ. The
evaluation criteria for the points-scoring
categories were:
• Experience and performance
– 20 points
• Workload – 5 points
• Organization and key project staff
– 20 points
• Capacity and capability – 10 points
• Design-build approach – 15 points
• Sustainability and quality
– 10 points
The submittal requirements and evaluation are summarized in Table 1. Each of
the submittal sections that were evaluated by a points score included a number
of sub-categories as shown in Table 2 to
further define the category and allow for
more comprehensive evaluations.
BACK TO CONTENTS
TABLE 1 – SUBMITTAL REQUIREMENTS AND EVALUATION CRITERIA
Submittal Section
Evaluation Criteria
Cover Letter
Qualification Questionnaire
Team Structure and Roles
Primary Project Reference
Financial Capacity
Experience and Performance
Workload
Organization and Key Project Staff
Capacity and Capability
Design-Build Approach
Sustainability, Safety, and Quality
Pass/Fail
Pass/Fail
Pass/Fail
Pass/Fail
Pass/Fail
Points Score
Points Score
Points Score
Points Score
Points Score
Points Score
TABLE 2 – SUBMITTAL SECTION SUB-CATEGORIES FOR POINTS EVALUATION
Primary Project Reference (carryover)
Relevance to Infrastructure Work
Experience in Saskatoon/Saskatchewan
Experience and Performance
Knowledge of Authorities in Saskatoon
Quality of Work
Meets Schedule Requirement
Team Members Worked Together
Work Performed by Proposed Project Staff
List of Projects Provided
Workload
Statement of Commitment to Project
Demonstration of How the Work Will Use Resources
Organization Chart Includes All Required Functions
Organization and Key Project Staff
Organization Chart Demonstrated Good Design-Build Experience
Strength of Proposed Key Staff
Additional Key Staff Proposed
Volume of Resources
Commitment to Putting Resources in Saskatoon
Capacity and Capability
Tools and Processes
Quality and Sustainability
Conveyance Tunnels
Other Specialized Experience (e.g., Geotech or Cobbles/Boulders)
History of Firms Working Together
Approach to Collaboration
Design-Build Approach
Approach to Meeting Schedule
Approach to Risk Management
Approach to Scope/Budget Management
Safety Statistics
Health and Safety Program
Integration of Sound Sustainability Principles into Company Culture
Sustainability, Safety, and Quality
Integration of Sound Sustainability Principles into Past Projects
Methodology for Understanding and Implementing
Sustainability Principles into this Project
Quality Program
NASTT-NW.COM | 31
TABLE 3 – PROJECT RISK ALLOCATION MATRIX
Design and Construction Risks
City
Design and construction approvals – environmental
Contractor
ü
Design deviation from concept/schematic approval
ü
ü
Design errors
ü
Patent infringement
ü
Inclement weather
ü
Historical resources and environmental – known and disclosed
ü
Historical resources and environmental – unknown
ü
Water/air/soil contamination – unknown pre-existing
Water/air/soil contamination –
known pre-existing or arising from work
Cost of utility permits
ü
ü
ü
Delays by agencies other than the City (e.g., utilities)
Delays by the City
ü
ü
Construction cost and time overrun
ü
Latent defects (existing infrastructure)
ü
Adequacy of insurance
ü
Subcontractor insolvency
Changes in design and construction
standards during the construction period
Geotechnical conditions outside the
limits of the Geotechnical Baseline Report
Labour disputes
ü
ü
ü
ü
Damage to work during construction period, however caused
ü
Accidents during construction period
ü
Damage / loss to utilities
ü
Utility relocation and protection
ü
Defective material / workmanship
ü
Achieving construction standards and specifications
ü
Injunctions against construction (not caused by Contractor)
ü
Labour, equipment, and material availability
ü
Change in law (general)
ü
ü
Force majeure events
ü
ü
Workplace health and safety
ü
To give proponents a better indication of the number of proposals that
would be requested, the RFQ stated that
the shortlist would be no fewer than
three firms and no more than five firms.
As well as advertising the project, a
list of more than 50 potential tunneling
contractors was generated and direct
contact made with these firms to solicit
their interest in obtaining the RFQ.
The RFQ also indicated to prospective
32 | NASTT-NW JOURNAL |
Fall/Winter
2014
proponents that the result of the RFQ
process was to develop the shortlist,
not to rank the shortlisted contractors.
Once the shortlist was selected, all proponents were considered on an equal
basis and the scoring from the RFQ
process was not carried over to the
RFP. The intent was to evaluate the proposals from each shortlisted contractor
on their merits with no influence from
the RFQ stage.
STAGE 2 – RFP PROCESS
Developing and issuing the RFP document
and the subsequent evaluation of proposals
received was the key process in the
selection phase.
The RFP document had, on the one
hand, to protect the City’s interests while,
on the other hand, providing guidance and
incentive to the contractor to complete the
project successfully. The document was
developed to give proponents:
• instructions on the commercial
arrangements, proposal submission
requirements, and proposal evaluation
• project objectives scope and schedule
• a clear understanding of the
technical requirements, including
contractual obligations and technical
specifications
• a summary of the risk allocation and
provisions for dispute resolution
RISK ALLOCATION MATRIX
A risk allocation matrix was included
in the RFP. While not intended to take
precedence over the D/B agreement, it was
included to provide a general indication
of the owner and proponent responsibilities. The risk allocation matrix is shown
in Table 3.
DISPUTE RESOLUTION
As noted previously, tunneling work inherently involves risk. Risk on a project
such as the McOrmond Drive project can
take a number of forms. It can include
commercial risks for the contractors in
preparation of the proposal. As shown
in Table 3, it can also include geotechnical risks resulting from conditions that
are not as described in the geotechnical
baseline report. Misunderstanding or
misinterpretation of risks can often lead
to disputes arising during the project.
Two provisions were included in the
RFP document specifically to minimize
the potential for disputes. These provisions related to escrow documents, and a
dispute review board.
ESCROW DOCUMENTS
Proponents with the three lowest price
proposals were required to submit,
within three working days after proposal
opening, a sealed container holding a
copy of all documentary information
generated in preparing the proposal,
such as design notes and supplier and
subcontractor quotes, and a breakdown
BACK TO CONTENTS
of the proposal price for the project. In the
presence of the escrow agent and a representative of the owner, each proponent was
required to review the container contents
and confirm its authenticity. Only the
documentary information of the preferred
proponent is retained for the duration of
the contract. The documentary information of the unsuccessful proponents was
returned following award and execution of
the contract.
The purpose of the escrow documents is
to assist in the negotiation of price adjustments and change orders and in the settlement of disputes and claims. They were not
intended to be, and were not, used in any
pre-award evaluation.
A local escrow agent was selected by
the City to hold these containers for the
contract duration, and make them available
if needed for dispute resolution.
DISPUTE REVIEW BOARD
A dispute review board (DRB) provision
was also included in the RFP. The intent
of this provision was to establish a DRB at
the start of the contract, consisting of three
highly experienced members acceptable
to, and selected by, both the owner and
the contractor, to assist in the timely and
equitable resolution of disputes, claims and
controversies arising out of the performance of the work. The DRB members
were selected for their industry experience
in tunneling construction. Key functions of
the DRB were that the members would be
neutral, impartial, and have no conflict of
interest, and they would provide confidential, non-binding recommendations based
solely on factual matters presented to them.
Compensation for the DRB members is
paid equally by the owner and the contractor, and they are contracted in a tri-party
agreement between the owner, the contractor, and each DRB member.
Involvement of the DRB can be requested by either the owner or the contractor should the parties be unable to resolve
disputes. All information presented to the
DRB is to be kept confidential, and DRB
members cannot disclose any information
or recommendation to any third party.
The administrative package was essentially a confirmation of some of the
information provided at the RFQ stage
to highlight any changes in areas such
as team members, key individuals and
team structure, as well as additional
information on the proposed agreements
between team members, and a management plan covering the organizational
structure, and proposed key individuals’
time commitments.
The technical submission covered
six areas:
• Qualifications update
• D/B project delivery methodology
• Preconstruction period services,
including engineering and
design, materials and equipment
procurement, and project
management
• Construction period services,
including construction delivery
• Contractual or material betterment
and incentives, giving proponents
an opportunity to provide optional
proposals
• Comments on the D/B agreement
should proponents have concerns
The transmittal package was to include
the price proposal and the proposal
deposit, consent of surety, consent of insurance, and confirmation of no material
change in the proponent’s financial capacity. The price proposal was to be a single
fixed price for the design and construction of the new infrastructure.
PROPOSAL EVALUATION
The proposal evaluation was intended to
assess each respondent’s strengths and
experience in delivering and managing
projects comparable to this project. The
goal of the evaluation was to identify
the proponent with a compliant proposal, based on pass/fail or acceptable/
unacceptable criteria, with the lowest
contract price.
The evaluation sequence and process
was as follows:
Step 1 – Initial evaluation of the overall technical proposal for completeness.
Step 2 – Administrative package
evaluation. The evaluation was on an
‘acceptable/unacceptable’ basis. Any
‘unacceptable’ designation could
eliminate this proponent.
PROPOSAL SUBMISSION REQUIREMENTS
The proposal submission requirements
consisted of three components:
• Administrative package
• Technical submission
• Transmittal package and price proposal
BACK TO CONTENTS
NASTT-NW.COM | 33
Step 3 – Technical submission
evaluation. This evaluation was on a
‘pass/fail’ basis. Any ‘fail’ designation
could eliminate this proponent.
Step 4 – Transmittal package
evaluation. This evaluation was on
an ‘acceptable/unacceptable’ basis.
Any ‘unacceptable’ designation could
eliminate this proponent.
Step 5 – Price proposal evaluation.
Provided the previous steps were
compliant, the evaluation was based
on the lowest contract price.
RFQ AND RFP RESULTS
More than 40 RFQ packages were issued.
Seven RFQ submissions were received.
Using the evaluation criteria noted in Tables
1 and 2, an individual evaluation of each RFQ
submission was carried out by a group of five
senior City managers and two owner’s engineer
representatives. The individual results were
then compiled into a composite score for each
submission.
The evaluation resulted in four teams being
shortlisted for the RFP stage.
The RFP was issued to the four shortlisted
teams. Three compliant proposals were received and evaluated as outlined above, resulting in the selection of a preferred proponent,
Michaels Canada Co. City Council approved
the award of the D/B agreement at its meeting
on May 28, 2012. The project had a completion date of July 2014.
T
“WHAT IS DIFFICULT FO R O
• COR / Safety Program
• ISNETworld
• Frac Control & Contain Units
ELK POINT
780.210.2225
34 | NASTT-NW JOURNAL |
Fall/Winter
HE
RS
IS
JUST RIGHT FOR US!”
HORIZONTAL DRILLING
SPECIALISTS
• Road Crossings
• Creeks and Rivers
• Pipeline Alleys
Email:
[email protected]
2014
• Gas & Oil, Power, Water, Communication Lines
• Hydrovac Service
BONNYVILLE
780.812.9145
LESSONS LEARNED
For a project such as this one, using
a D/B procurement model, the RFQ
stage has proven to be a critical component to generate a shortlist of qualified pursuit teams that is large enough
to ensure competitive proposals, but
small enough to be fair to the proponents during the RFP stage, as the City
decided not to offer an honorarium for
this project. There is considerable expense incurred by each proponent to
develop its design sufficiently to complete a competitive price proposal that
also minimizes unknowns that could
affect eventual profitability. By way of
comparison, in most Public-PrivatePartnership (PPP) procurements, the
shortlist is typically limited to three
proponents in part due to the significant expense incurred in developing a
proposal, which is not fully recovered
by an honorarium allotment, if any,
provided by the owner.
As with any procurement method,
providing a complete and robust procurement document is the cornerstone
of obtaining realistic and competitive
pricing. With any alternative procurement model, a well-defined risk
allocation matrix is crucial to clearly
define areas of risk responsibility between the D/B team and the client. To
complement the procurement document, dispute reduction approaches
such as the use of escrow documents
and a DRB, as described above,
provide inherent protections for each
party’s interests.
The use of GDRs and GBRs to
document geotechnical investigations
is proving to be of critical importance
to the successful delivery of underground construction projects of any
significant magnitude, particularly
for tunnel projects. The GBR provides
definitions of the range of geotechnical
conditions anticipated for the project,
clearly defining the contractor’s limits
of risk for ground conditions encountered. If actual conditions differ from
those defined within the GBR, the
contractor can seek compensation for
those differing site conditions, and the
merit and extent of the claim can be
easily evaluated. The GBR is an excellent tool for protecting the interests of
both parties by an equitable distribution of risk.
BACK TO CONTENTS
NORTH AMERICAN SOCIETY FOR
TRENCHLESS TECHNOLOGY
NASTT REGIONAL CHAPTERS
REGIONAL ISSUES,
INTERNATIONAL SUPPORT
Contact your regional chapter today.
The grassroots of NASTT is a network of nine regional chapters
throughout the United States and Canada. Regional chapters network
at the local level, share infrastructure challenges and develop new ideas.
Regional chapters hold various events throughout the year, and like
NASTT, are dedicated to the advancement of trenchless technologies for
the benefit of the public and the environment.
With your NASTT membership you are automatically enrolled not only
in the national and international organization, but also in your regional
chapter. So join today and get to know the “local heroes” that are making
their communities better places through the innovative engineering
solutions of trenchless technologies.
REGIONAL CHAPTERS
British Columbia
www.nastt-bc.org
British Columbia
Great Lakes, St. Lawrence
& Atlantic
www.glsla.ca
Ontario, Quebec, New Brunswick,
Prince Edward Island, Nova Scotia,
Newfoundland and Labrador
Mid-Atlantic
www.mastt.org
Delaware, Maryland, New Jersey,
Pennsylvania, Virginia, West Virginia
and District of Columbia
Midwest
www.mstt.org
Illinois, Indiana, Iowa, Kentucky,
Michigan, Minnesota, Missouri, Ohio
and Wisconsin
Northwest
www.nastt-nw.com
Alberta, Manitoba and Saskatchewan
Pacific Northwest
Alaska, Idaho, Oregon
and Washington
Rocky Mountain
www.rmnastt.org
I F I C
P A C
EST
NOR THWT E R
P
CHA
Colorado, Utah and Wyoming
T
NAS T
Southeast
www.sestt.org
NAS TT
Alabama, Arkansas, Florida,
Georgia, Louisiana, Mississippi,
North Carolina, South Carolina,
Tennessee and Puerto Rico
ROCKY MOUNTAIN
CHAPTER
Western
www.westt.org
Arizona, California, New Mexico,
Nevada and Hawaii
BACK TO CONTENTS
nastt.org
North American Society for Trenchless Technology
7445 Morgan Rd. • Liverpool, NY 13090
Phone: 315-409-7552
NASTT-NW.COM | 35
ANY SIZE. ANY LENGTH.
ANYWHERE.
Calgary (403) 269.4998 Edmonton (780) 960.6037
www.directhorizontal.com
Trenchless solutions from the sharpest minds in the business!
THIS IS WHAT
RISK MITIGATION LOOKS LIKE
IPC is pleased to introduce German directional drilling technology to the
Canadian market. Backed by eight years of worldwide use, our Direct
Pipe technology and patented processes limit your risk and reduce your
environmental impact. When working with IPC you can be confident that
your project will be delivered safely with a quality you can stand behind.
403 398 2490 | ipipecrossings.com
LEARN MORE ABOUT HOW YOU CAN USE IPC ON YOUR NEXT CROSSING PROJECT
36 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
(Copyright 2014 by the North American Society for Trenchless Technology. Original presentation given at NASTT’s 2014 No-Dig Show, in Orlando, Florida. All rights reserved.) Reprinted with permission.
Kas Zurek, P.Eng., City of Winnipeg, Winnipeg, Manitoba
Jason S. Lueke, Ph.D., P.Eng., Associated Engineering, Edmonton, Alberta
To Rehabilitate or Replace the
North Kildonan Feedermain
Figure 1. Alignment of the North Kildonan Feedermain.
BACK TO
TO CONTENTS
CONTENTS
BACK
Abstract
The North Kildonan Feedermain (NKF) is
a 600 mm (24 inch) diameter, 200 m long
(650 ft.) steel pipe crossing the Red River
that connects the northeast and northwest sections of the City of Winnipeg’s
water distribution network. The pipe was
originally constructed in 1972, and installed by sinking the pipe in the river and
connecting to the distribution network.
In the fall of 2012, the City of Winnipeg
Water Services Division determined the
presence of a major leak in the feedermain at the approximate midpoint of the
river. Inspections revealed that a welded
joint had partially failed to allow joint
separation to occur. Additionally, it was
determined that a large length of the pipe
was elevated above the bottom of the river
– allowing divers to swim beneath the
pipe during the inspection. Pipe repairs
were completed in February of 2013, but
NASTT-NW.COM | 37
To Rehabilitate or Replace the North Kildonan Feedermain
were considered to be an interim solution to allow operation of the line during
peak summer demands. The City retained
Associated Engineering to develop and
evaluate alternatives to rehabilitate or
replace the Kildonan Feedermain. Several
solutions were developed including two
bridge mounted crossings, relining the
existing pipe, open trench, weighted pipe,
and new installations by directional drilling, microtunnelling, and conventional
tunnel boring. This paper discusses these
conceptual alternatives, and the results of
an analysis conducted using the Analytical
Hierarchy Process to determine the most
suitable and best value solution to take
into detailed design.
Background
The North Kildonan Feedermain (NKF) is
a significant component to the City of Winnipeg’s potable water distribution network.
The feedermain is a 600 mm diameter steel
pipe crossing the Red River that connects
the northeast and northwest sections of
the City of Winnipeg’s water distribution
network. The pipe was originally constructed in 1972, and installed by sinking
the pipe in the river and connecting to the
distribution network with lengths of open
trench construction through the banks.
The location of the feedermain is relatively
parallel and north of the Kildonan Settler’s
38 | NASTT-NW JOURNAL |
Fall/Winter
2014
Bridge (Chief Peguis Trail). Figure 1 shows
this alignment and site location. The line is
situated below the Red River and balances
flows through the northeast and northwest
sections of the distribution network.
In the fall of 2012, the City of Winnipeg
Water Services Division determined the
presence of a leak in the North Kildonan
Feedermain at the approximate midpoint of
the river crossing. The feedermain was isolated by closing control valves on either side
of the river to allow the City to undertake
repairs. Inspections of the crossing revealed
that a welded joint had partially failed to
allow joint separation to occur. Additionally,
it was determined that a large length of the
pipe was elevated above the bottom of the
river – allowing divers to swim beneath the
pipe as the inspection was undertaken.
Pipe repairs were completed to a welded
joint in February of 2013 and then again
several weeks later, but were considered to
be an interim solution as the City examined alternatives to rehabilitate or replace
the North Kildonan Feedermain. However,
despite the second repair a leak in the
feedermain still remained.
In April of 2013, the City of Winnipeg
retained the services of Pure Technologies
Ltd. to perform leak detection. Utilizing the
Sahara Method (acoustical leak detection), a
leak was identified at 83 m (274-foot mark)
of the feedermain. This distance matched
the same location as the previous repairs.
The line was repaired again and subsequently retested. The metering chamber,
however, still indicated a loss was present. The City could not confirm the origin of the loss but it was noted that meter chamber accuracy, valve chambers, or
potential losses prior to the feedermain
could be factors. The feedermain held 80
psi during testing, but over the course of
two hours gradually lost pressure.
To assist the project team in determining whether to rehabilitate or replace
the North Kildonan Feedermain, and
to select the most suitable construction
method, it was decided that an Analytical Hierarchy Process (AHP) based tool
be utilized. This would allow for the
team to review and evaluate the various
alternatives, and select the highest-value
alternative to carry into detailed design.
Analytical Hierarchy Process
The Analytical Hierarchy Process (AHP)
is a multi-criteria decision-making
method developed by Saaty T.L. (Vargas,
1989). It has been applied to solve
unstructured problems in a variety of
decision-making situations, ranging from
simple personal decisions to complex
capital-intensive decisions. AHP has
been used in several applications such as
pre-bid qualification (Al-Harbi, 2001),
selection of delivery methods (Khalil,
2002, Alhazmi, 2000), conflict resolution (Satty, 1982), and maintenance
management (Shen, 1998). Each application is unique and, even when the hierarchy can be used in several situations,
the evaluation process depends on the
situation and the decision maker.
The application of AHP is carried
out in the following stages: situational
analysis including the development of
potential alternatives; development of
evaluation criteria; ranking of alternatives by the evaluation criteria; and value
ranking using conceptual level cost
estimates developed for each alternative. For the North Kildonan Feedermain (NKF) project, we held a one-day
workshop with the City of Winnipeg,
inviting specialty contractors familiar
with the local working conditions, local
geotechnical engineers, and the design
consultant. This combination of expertise allowed for a thorough evaluation of
each alternative.
BACK TO CONTENTS
Concept solutions
Several potential solutions were developed
to rehabilitate or replace the NKF. This
section of the paper will briefly describe
the nine alternatives that were considered,
along with the potential advantages and
disadvantages of each alterative. A cost
summary for each alterative is provided at
the end of the section.
Advantages: New bridge designed
specifically to house the North Kildonan
Feedermain; access to majority of waterline
for maintenance inspections and servicing;
recreational and community benefits.
Disadvantages: Pipe exposed to the environment; potential issues with infrastructure security; short-term effects caused by
construction activities in the park.
Bridge mounted crossing:
This alternative would use the existing
Kildonan Settlers Bridge to convey a new
feedermain across the Red River replacing the existing feedermain located just
north of the bridge on an approximate
parallel alignment. Mounting utilities on
bridges to cross rivers is fairly common
practice. A structural analysis would need
to be completed to ensure the bridge can
adequately support the additional loads of
the feedermain, and some thought would
need to be given to ensure the feedermain
does not impede potential expansion of the
bridge in the future.
Advantages: NKF parallels the existing
Kildonan Settlers Bridge; minimal impact
to river banks; good access to majority of
watermain for maintenance, inspections,
and servicing.
Disadvantages: Pipe exposed to the environment; supporting infrastructure under
the jurisdiction of another agency; potential
issues with infrastructure security.
Cured in place pipe:
This alternative involves the trenchless rehabilitation of the existing steel feedermain
with cured in place pipe relining methods
to provide corrosion and leak prevention.
There were a number of constructability issues with this concept. While the
length of the required rehabilitation is not
an issue, the bends and condition of the
existing line were issues. Cured in place
pipe is generally not feasible in pipes with
large bends. Wrinkling and loss of diameter
would occur and reduce the strength of the
liner and the available flow capacity of the
pipe. To ensure the pipe remains in place
following relining, ballasts could be used
to anchor the pipe to the riverbed, or piles
installed to provide lateral support to the
pipe that is suspended above the river bottom. Hydraulic impact assessments could
be required to determine the resulting flow
condition in the river. Lining would not increase the structural integrity of the existing
pipe, and due to its location would still be
Pedestrian bridge:
This alternative would replace the existing
feedermain crossing, and require the construction of a new bridge across the river.
There are several issues that arise from the
construction of a new bridge with the dual
purpose of conveying the feedermain and
pedestrians. A bridge aligned to the north
of the existing Kildonan Settlers Bridge
would be optimal from a utility perspective
as it is closer to the existing crossing and
water distribution system; however, the
south side of the bridge would be better
suited from a recreational perspective. The
bridge design would need to take into consideration the inspection and maintenance
needs specific to the pipe crossing. Heat
tracing and insulation would be required
to protect the pipe from cold temperatures.
This alternative, however, may require
some significant approvals with various regulatory agencies, and there would be need
for public and community involvement.
BACK TO CONTENTS
subjected to the lateral loads from the river
flow. Because the original steel pipe would
be integral to the solution by providing
structural support, it would need to be
inspected routinely over the remaining life
of the feedermain.
Advantages: Minimal impact to the riverbank; reuse of existing North Kildonan
Feedermain pipe and alignment; accelerated construction schedule.
Disadvantages: Feasibility of relining
though bends in feedermain questionable
and deemed high risk; feedermain still
exposed to lateral loads from the river and
would require bracing or stabilization; concerns with relining with a possible active
leak, water in the pipe, and large elevation
differences; external water pressure will affect design and installation of the liner.
Sliplining:
This alternative would involve the lining
of the Kildonan Feedermain by pulling a
smaller diameter high-density polyethylene
(HDPE) pipe through its length from bank
to bank. This would be a rehabilitation
alternative that would result in the reduced
capacity of the feedermain due to the diameter restriction. This option was developed
prior to the workshop – but during further
analysis was eliminated from consideration
due to the following:
• The existing feedermain has two bends
that would restrict the diameter of
Advanced Robotic Pipe Inspection Services
• Video (CCTV)
• Laser Profiling
• CIPP Lining
• Long Line Video (10,000’)
• Radio Line Locating
• Hydrovac Services
• Flushing Services
Geolyn Pipe Inspection Services Ltd.
18–3716 56 Avenue SE, Calgary, Alberta, T2C 2B5
Phone: 403.453.0522 • Fax: 403.453.0520
Website: www.geolyn.ca • Email: [email protected]
NASTT-NW.COM | 39
To Rehabilitate or Replace the North Kildonan Feedermain
HDPE pipe that could be installed
within the feedermain.
• The resulting inside diameter of a
HDPE installation pipe that could
be pulled though these bends
would likely be less than 490 mm in
diameter – the minimum diameter
acceptable to the City.
• Even if this option was feasible from
an operational perspective, the HDPE
pipe would not enhance the structure
of the feedermain and it would still be
subjected to the forces developed by the
flow of the river.
Open trench:
This alternative replaces the existing
Kildonan Feedermain with a new pipe
along a similar alignment installed by open
trench construction techniques across the
river. The most likely methodology would
be by the Sauerman method (dragline).
There were several issues that make this
alternative difficult to implement:
• From a geotechnical perspective, the
bedrock is exposed in the thalweg of the
river, suggesting that creating a trench
through the lowest part of the river is
not feasible.
• A minimum depth of cover is required
for pipes crossing waterways by the
local regulatory agencies; it may be
difficult to ensure this depth of cover
can be achieved with this method.
• It would be difficult to foresee how
stable backfilled material would be
within the river, and there may be a risk
of increased scour exposing the pipe
several years after installation.
• With the relative shallowness of the
bedrock, using conventional means
such as sheet piling to control water
infiltration in the excavation may not
be feasible.
Advantages: New pipe is installed that
operates completely independently of the
existing feedermain; installed pipe would
not be exposed to river currents.
Disadvantages: Significant impact to
the environment; destruction of river
bed habitat and large release of sediment
into the river; challenging construction
within a deep waterbody; more modern/
technologically advanced methods are
typically favored in waterline river crossings; obtaining regulatory approvals may
be difficult or not possible.
Weighted pipe:
This alternative involves the installation
of a high density polyethylene (HDPE)
across the river by floating and sinking
the pipe using concrete weights, and then
connecting it to the existing distribution
system by open trenching across river
banks. This method of installation is similar to how the original feedermain was
installed in that the pipe is fully exposed
to the river flow and would be under constant lateral loading. It is anticipated that
yearly inspections of the concrete weights
and pipe would be required to ensure
the weights remain in place and that the
pipe does not shift, placing unintentional
stress in the pipe string. If shifting of the
pipe is a concern, additional lateral support could be provided by the addition of
screw piles.
Advantages: Relatively cost-effective
installation method and proven with
scope of proposed crossing.
Disadvantages: Excavation of river
banks required to tie pipe back into
existing distribution system; some
impact to river bottom and release of
sediment during construction; pipe
exposed to flows in river causing lateral
loading and having the potential to be
damaged; regular inspections would be
required to assess condition of concrete
weighting system; obtaining regulatory approvals may be difficult or not
possible.
Horizontal directional drilling:
This alternative involves the trenchless
installation of a new pipeline beneath
the river using horizontal directional
drilling (HDD) to the north and parallel
to the North Kildonan Settlers Bridge. A
high-level assessment of the feasibility
of crossing the Red River at this location
was performed, and determined that it
should be feasible and well within the
technological capabilities of the horizontal directional drilling technology.
This alternative would install the new
pipe well below the depth of the river
bottom, through the underlying bedrock. Due to the length of the required
installation, the entry and exit locations
are well outside any areas of potential
riverbank instability concerns. Additionally, the entry and exit locations
can be situated to minimize the removal
of trees and excessive disturbance to the
surrounding park areas.
E L I M I N AT E
TUNNEL VISION
MMM Group’s tunneling experts
specialize in advanced tunneling
techniques for challenging site
conditions. With our wholeproject vision, we develop
sa fe , susta i n a b l e , a nd
fiscally responsible
solutions.
www.mmmgrouplimited.com
40 | NASTT-NW JOURNAL |
Fall/Winter
2014
Follow Us:
BACK TO CONTENTS
Advantages: Minimal impact to the river
bank and river bottom as this is a trenchless installation method; diameter and
length of the installation is well within the
technological capabilities of the method;
size of work areas are controlled and minimized; option is consistent with the City
of Winnipeg Watermain River Crossing
Design and Construction Standards.
Disadvantages: Some concern regarding fractured bedrock along the alignment,
as this could reduce confining pressures
of the soil and increase the likelihood
of a hydro-fracture; new pipe would be
installed deep below the river, limiting the
ability to inspect and repair the line.
Microtunnelled crossing:
This alternative uses microtunnelling to
install a casing pipe by trenchless methods
beneath the Red River along an alignment
to the north and parallel to the North
Kildonan Settlers Bridge. For the diameter and length of crossing required for
this alternative, it would be most feasible
to install a casing pipe into which the
new feedermain would be installed. Most
likely the feedermain would be polyvinyl
chloride (PVC) pipe installed with casing
spacers and restraints. Depending on the
diameter of the casing, there may be synergetic opportunities to house additional
small diameter utilities (telecom and cable)
within the casing.
Advantages: Potential opportunity
to share casing with other small utilities
(telecom/cable); no impact to the river
bank – all excavations can occur outside
areas of bank instability; casing would
Table 1. Alternative Cost Estimates
Alternative Description
Estimated Cost
Bridge Mounted Crossing
$7,800,000
Pedestrian Bridge Mounted Crossing
$19,600,000
Cured in Place Pipe Rehabilitation
$3,100,000
Open Trench
$5,000,000
Weighted Pipe
$4,200,000
Horizontal Directional Drill
$3,200,000
Microtunnelled Crossing
$6,700,000
Utility Tunnel
$9,000,000
allow replacement or upsize of feedermain
in the future with minimal impact to the
surrounding area.
Disadvantages: Longer construction
schedule than some other methods discussed; access to valve chambers would be
located in the deep shafts; fewer contractors
in the local vicinity that have experience to
undertake this work.
Utility tunnel:
This alternative uses conventional tunnelling with a tunnel boring machine
to install a utility tunnel by trenchless
methods beneath the Red River along an
alignment to the north and parallel to
the North Kildonan Settlers Bridge. This
alternative installs a large diameter tunnel
beneath the Red River, upwards of 2.0 m
in diameter, to house a new feedermain
crossing and potentially other utilities that
need to cross the river in the local vicinity.
Tunnelling would occur along a similar
alignment as the microtunnelled crossing
option, with access shafts excavated well
outside the zone of any potential riverbank
stability concerns.
Advantages: No impact to the riverbank
– all excavations can occur outside areas of
bank instability; utility tunnel provides excellent access for maintenance and inspection; tunnel provides opportunities for the
installation of other utilities, or for upsizing
the North Kildonan Feedermain.
Disadvantages: Longer construction
schedule than most of the other methods
discussed; all work would be done though
deep shafts which may be a safety concern
in the future; fewer contractors in the local
vicinity that have experience and equipment
to undertake this work; an additional asset
to maintain.
Conceptual level cost estimates were
developed for each alternative. Unit rates
used in these estimates are based on recent
tenders from similar work conducted in
Western Canada, and consultations with
specialty contractors. The following table
summarizes the estimated cost of each alternative with contingency and engineering.
water resources engineering municipal infrastructure land development project management peat & gravel development Partnering, for over 30 years, with clients to find innova8ve, prac8cal and cost effec8ve solu8ons to complex engineering problems. www.sameng.com | (780) 482-­‐2557 | [email protected]
BACK TO CONTENTS
NASTT-NW.COM | 41
To Rehabilitate or Replace the North Kildonan Feedermain
Evaluation criteria
To assist in the assessment of the suitability
of each alternative in meeting the project
goals and objectives, a set of evaluation
criteria was developed. Each alternative
is subsequently compared on the basis of
these set criteria, resulting in a ranking of
the suitability of each alternative. The following evaluation criteria were used in the
evaluation of the proposed alternatives.
Constructability: Evaluates the technical
feasibility of installing the utilities along
the proposed alignment using the proposed
construction methodologies. Factors considered in this evaluation include the ability
to find contractors to undertake the work;
the technical feasibility of pipe diameters
and lengths for the proposed methodology;
space requirements; compatibility with soil
conditions; construction risks; and contractual/procurement risks.
Maintenance and Operations: Refers to
the ability to maintain, inspect, and service
the feedermain along the proposed alignment considering the lengths, diameters,
and potential access points. Included in
this was the ease of repairing the line in the
future, as well as the durability and robustness of the solution.
Social Impacts: Evaluates the level of
inconvenience to the residents resulting
from construction on a particular alignment. Factors considered in this criterion
include noise and dust generation; visual
acceptability of the construction method;
construction traffic and detours; access to
public parks; and loss of use of recreational
areas during construction.
Sustainability: Evaluates the ability of
an alternative to adapt to changing conditions, external influences, and changes in
operation; the longevity of the repair or
installation; ability or ease of rehabilitating
the line in the future; life expectancy of the
alternative; and the ability to expand the
feedermain in the future if water demand
increases.
Infrastructure Security: The ability of
a particular option to remain serviceable
from the effects of infrastructure failure due
to manmade and natural disasters, acts of
terrorism, and vandalism. Bank stability
was also evaluated as part of this criterion.
Schedule: The ability of an alternative to
be in service in 2014, and considered the
potential timeline for obtaining approvals from regulators as well as the expected
duration of construction.
42 | NASTT-NW JOURNAL |
Fall/Winter
2014
Table 2. Evaluation Criteria Weightings
Evaluation Criteria
Weighting
Infrastructure Security
28
Sustainability
19
Regulations and Environment
19
Constructability
17
Maintenance and Operations
11
Schedule
6
Social Impacts
0
Regulators and Environment: Evaluates the impact from construction on the
natural environment. Some of the factors
considered in this criterion include regulatory acceptance, amount of disturbance to
and clearing of trees or vegetation required
to implement the option, and impact to the
rivers and wildlife in the immediate area.
“Based on the input from
the workshop participants,
Infrastructure Security
had the highest weighting
in terms of deciding the
most suitable alternative to
rehabilitate or replace the
North Kildonan Feedermain.”
Criteria weighting
Using a pairwise evaluation matrix, the
proposed evaluation criteria were compared
to determine their relative importance to
each other as per the principles of the analytical hierarchy process. This allowed for
the assignment of weights to each criterion
that compared their relative importance in
an objective manner.
Based on the input from the workshop
participants, Infrastructure Security had the
highest weighting in terms of deciding the
most suitable alternative to rehabilitate or
replace the North Kildonan Feedermain.
Some of the factors contributing to this
high weighting included concerns about
using the existing feedermain that is still
exposed to the river flows; issues pertaining
to river bank stability; and the City wanting
a long-term solution that was robust and
reliable for many years.
Sustainability, Regulations and
Environment, and Constructability all
scored relatively high, and as a group
accounted for 55% of the weightings
assigned. While some considered that
each alternative could be evaluated based
on a pass or fail type assessment on these
three criteria, group consensus agreed
that each alternative could be engineered
and constructed to meet the minimum
requirements for each criterion.
While Social Impacts was considered to
be an important criterion early in the discussions, it received a zero weighting when
the pairwise comparison was undertaken.
This does not mean that Social Impacts due
to construction are not important – but
rather that for the circumstances associated
with this project, the workshop participants
deemed that it did not have a higher importance than any of the other criteria evaluated. Additionally, it was felt that with the
location and nature of the project that any
social impacts would be managed effectively
regardless of which alternative was selected.
Alternative evaluation
To assess the most suitable alternative, each
option was scored by the evaluation criteria.
For each criterion, a score was determined
by multiplying the criteria weight by a
rating determined through comparing the
various alternatives. The rating ranged
between 1 and 10, with 10 being the highest favorable rating for the criterion being
considered. Ratings were decided on by the
workshop participants. The product of the
rating and criteria score for each alternative was summed to obtain a total weighted
criteria score. The option with the highest
weighted criteria score would be considered the best option based on the evaluation criteria developed by the workshop
participants. The results of evaluation are
summarized in Table 3.
BACK TO CONTENTS
BACK TO CONTENTS
Open Trench
Weighted HDPE Pipe
Horizontal Directional Drilling
Microtunnel Crossing
Utility Tunnel
3
8
7
5
4
4
7
5
9
9
7
6
2
5
8
7
7
4
6
5
9
9
10
3
5
6
4
9
9
7
3
5
2
6
9
6
2
5
4
1
Pedestrian Bridge
2
Evaluation Criteria
Bridge Mounted Crossing
Cured in Place Pipe Relining
Table 3. Concept Rankings
Weight
Value ratio analysis
To determine the best valued alternative, the one with the highest perceived
cost-benefit, we take the alternative’s Total
Weighted Criteria Score and divide by its
Estimated Cost. The resultant number is
the Value Ratio for that particular alternative. The alternative with the highest Value
Ratio is the one that is perceived to have
the highest cost-benefit ratio. Table 4
summarizes the Value Ratio scores, ranked
from highest to lowest.
The Value Ratio analysis determined
that horizontal directional drilling was
the highest ranked alternative, followed
by cured in place pipe, weighted HDPE
pipe, and microtunnelled crossing. Based
on comments from the Insituform representative during the workshop, it was
determined that the cured in place pipe
alternative is not viable or feasible for the
geometry of the existing pipe – therefore
should be eliminated from consideration as
a solution. Horizontal directional drilling
was determined to be the best alternative
Constructability
17
6
7
Maintenance and Operations
11
6
8
Social Impacts
0
5
8
Sustainability
19
7
8
Infrastructure Security
28
3
Schedule
6
7
Regulations and Environment
19
Total Weighted Criteria Score
9
598
556 400 441
4
9
9
9
510
866
814
714
NASTT-NW.COM | 43
To Rehabilitate or Replace the North Kildonan Feedermain
Table 4. Alternatives Ranked by Value Ratio
Total Weighted
Criteria Score
Estimated Cost
(millions)
Value Ratio
(Criteria/Cost)
Horizontal Directional Drilling
866
$3.2
271
Cured in Place Pipe Relining
400
$3.1
129
Weighted HDPE Pipe
510
$4.2
121
Microtunnel Crossing
814
$6.7
121
Open Trench
441
$5.0
88
Utility Tunnel
714
$9.0
79
Bridge Mounted Crossing
598
$7.8
77
Pedestrian Bridge
556
$19.6
28
Alternative
– both from a cost perspective and from
its perceived benefit when considering constructability; maintenance and
operations; social impacts; sustainability;
infrastructure security; schedule; and
regulators and environment.
The weighted pipe alternative would
be challenging from a regulators perspective to obtain approval. This alternative would not receive approval unless
all other options were shown not to be
feasible. Then further protection methods
and leak detection monitoring would
need to be established and accepted. The
installation would not increase the level
of infrastructure security from the existing
feedermain significantly.
The pedestrian bridge mounted option
was ranked the lowest based on the fact
that it has the highest overall cost and
ranked a little below average by its Total
Weighted Criteria Score. This may not accurately reflect the true cost-benefit ratio of
this alternative as this option provides significant intangible benefits due to recreation,
community development, and aesthetics. It
would be advisable that the City review the
desire to construct a bridge link at this location, as if it were desirable or needed from
a community or recreation perspective, it
could change the ranking of this alternative.
Conclusions
A total of nine alternative solutions were
conceptually developed. Each alternative
included an alignment, estimate of
construction cost, constructability
assessment, and assessment of regulatory
requirements for implementation and
approval. All alternatives were developed
with consultation from contractors familiar
with the proposed construction method, and
with input from a geotechnical consultant
familiar with the local ground conditions
and bank stability concerns.
Advanced Trenchless Inc is your one stop shop for Trenchless, servicing all markets including Industrial, Municipal and Commercial.
We specialize in CIPP relining, Alberta’s premier provider for full system rehabilitation and underground solutions.
One Call Does It All, we are C.O.R. certified and 100% Alberta owned.
OUR LIST OF SERVICES INCLUDE:
• Mainline pipe relining using CIPP.
• Mainline spot repairs using epoxy and composite materials
for unsurpassed endurance and strength with minimal
diameter loss. Repairs are fully structural and can rebuild
sections of missing pipe as well as stop Infiltration and
exfiltration in all types of piping and conduit including
Pressure and Gravity applications.
• Installation of one piece lateral to main connection liners
utilizing a full 360° mainline wrap and installed via the
inversion method.
• Full length lateral lining installed from Main or Cleanout,
with one piece transition liners.
• Engineering services including stamped liner designs,
full evaluation and assessment services, and underground
infrastructure rehabilitation program design services.
• Manhole rehab using durable resin and composite materials
for long term strength and stability.
• Full CCTV inspection services, including mainline using
Pipe tech reporting software and push camera inspections
from 2” diameter and up.
• Small diameter pipe bursting and replacement with HDPE.
• Water line renewal and replacement using NSF-61
certified pull-in-place liners or HDPE pipe.
• Small to medium excavation services.
• High pressure flushing/vacuum service.
• Manhole sealing against infiltration using
chemical grout injection.
CHECK OUT OUR WEBSITE AT WWW.ADVANCEDTRENCHLESS.CA OR CONTACT US AT 1 780 988 0879
OVER 45 YEARS OF COMBINED KNOWLEDGE AND EXPERTISE IN TRENCHLESS CIPP INDUSTRY.
44 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
A workshop was held with the City
of Winnipeg and invited specialty contractors, to assist in the evaluation of
the various alternatives to rehabilitate
or replace the North Kildonan Feedermain. This facilitated workshop used
the Analytical Hierarchy Process (AHP)
to evaluate and rank the suitability of
each alternative in meeting the objectives of the project, based on a set of
evaluation criteria developed specially
for the scope and context of the project.
The evaluation criteria included: 1)
constructability; 2) maintenance and
operations; 3) social impacts; 4) sustainability; 5) infrastructure security;
6) schedule; and 7) regulators and
environment. The analysis concluded
that infrastructure security had the
highest weighting when evaluating the
alternatives, followed closely by sustainability, regulators and environment,
and constructability.
The alternatives were compared by
each criterion, and a ranking developed
“Rehabilitation of the
feedermain was not feasible
– and even if possible
would result in a section
of the distribution system
that would rely in part on
the structural integrity of
the existing pipe currently
suspended in the river.”
that assessed the suitability of each
alternative in meeting the project objectives.
The trenchless crossing alternatives were
ranked the highest during the workshop,
followed by the bridge mounted crossing
alternatives – all new replacement options.
The rehabilitation option that was evaluated
(CIPP) scored lowest, followed very closely
by the open trench alternatives – these
options scored low in terms of regulators and
environment, constructability, schedule, and
social impact. Value ratios were determined
(cost to benefit) for each alternative by
dividing its weighted score by estimated
cost. The alternative with the highest value
ratio is the one that is perceived to be the
best-valued alternative and best suited in
meeting the project objectives.
It was determined the horizontal directionally drilled (HDD) alternative was best
suited, and the preferred option based on
the evaluation criteria and value ratio analysis. This option had the highest perceived
benefits when considering constructability;
maintenance and operations; social impacts;
sustainability; infrastructure security; schedule; and regulators and environment.
At the conclusion of the analysis, it was
recommended that the North Kildonan
Feedermain be replaced. There were serious
concerns associated with its current position
and alignment within the river in considering infrastructure security, resiliency, and
longevity. Rehabilitation of the feedermain
TRENCHLESS TECHNOLOGIES
WE WERE GENIVAR
WE ARE NOW WSP
www.wspgroup.com/canada
Winnipeg 204-477-6650
Regina
306-585-1990
Edmonton/Sherwood Park
780-410-6740
Saskatoon 306-665-6223
Red Deer
800-463-6394
+15 other offices in Alberta
over 300 offices worldwide
BACK TO CONTENTS
Feasibility studies
Selection process and planning
of watermain and sewer
rehabilitation strategies
Preparation of specifications and
drawings for projects
Quality control
Condition assessment,
recommendations and reporting
NASTT-NW.COM | 45
To Rehabilitate or Replace the North Kildonan Feedermain
was not feasible – and even if possible
would result in a section of the distribution system that would rely in part on the
structural integrity of the existing pipe
currently suspended in the river. Based on
this analysis, the City proceeded with the
detailed design of a horizontally drilled
crossing of the Red River. Detail design
was undertaken in the fall of 2013, with
construction of the crossing anticipated for
the fall of 2014.
References
• Alhazmi, T and McCaffer. R. (2000).
Project Procurement System Selection
Model. Journal of Construction
Engineering and Management, MayJune.
• Al-Harbi, Kamal M. Al-Subhi. (2001).
Application of the AHP in project
management. International Journal of
Project Management, September.
• Khalil, Mohammed (2002).
Selecting the Appropriate Project
Delivery Method Using AHP.
International Journal of Project
Management issue # 20.
• Saaty, Thomas L. (1982). Decision
Making for Leaders. Lifetime
Learning Publications, California,
USA.
• Shen, Qiping, Kak-Keung Lo and
Qian Wang (1998). Priority Setting
in Maintenance Management:
A Modified Multi-attribute
Approach Using Analytic
Hierarchy Process. Journal of
Construction Management and
Economics.
• Vargas, Luis G. (1989).
An Overview of the Analytic Hierarchy Process and its Applications.
European Journal of Operations
Research, November.
Geotechnical - Environmental - Hydrogeology - Materials Engineering and Testing
46 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
DIGGING
DEEP
AECOM’s tunnelling and trenchless
specialists provide our clients a blend of indepth knowledge and experience to meet the
challenges of the most complex projects.
Using a wide variety of innovative techniques
and approaches, we apply solutions
throughout the transportation, water and
energy industries including cut-and-cover,
trenchless rehabilitations, immersed tube,
bored and mined tunnelling.
www.aecom.ca
Bore Spacer Ad - 7 X 4.625 - NASTT.pdf
1
10/25/2011
2:49:21 PM
C
M
Y
CM
MY
CY
CMY
K
BACK TO CONTENTS
NASTT-NW.COM | 47
Is your company
celebrating an anniversary,
expansion, relocation
or management change?
Contact Chad Morrison today to find out
how to get an advertising-funded, no-cost
corporate profile for your company.
866-985-9788
[email protected]
NORTH AMERICAN SOCIETY FOR
TRENCHLESS TECHNOLOGY
A PIPELINE
OF TRENCHLESS
RESOURCES
•
•
•
•
•
•
nastt.org
48 | NASTT-NW JOURNAL |
Fall/Winter
2014
North American Society for Trenchless Technology
7445 Morgan Rd. • Liverpool, NY 13090
Phone: 315-409-7552
BACK TO CONTENTS
Water and waste water main inspections
Call 1-780-469-4463, [email protected]
The
REVOLUTIONARY
Patented Diamondback PDC Hole Opener
THIS IS A GAME CHANGER
• Maintains a Better
Rate of Penetration
• Bi-Directional
• Larger Passes / Less Trips
• Latest Technology in HDD
866-313-3325/780-695-3325
www.diamondbackssr.com
Pipeline Roller Rental
P.O Box 1211
Nisku, Alberta T9E 8A8
Phone: (780) 982-3265
E:mail: [email protected]
Blue & Green Seahawks
Pipe Size Approx Wt.
Blue & Green
Seahawks Rollers
2" to 24"
85 lbs
Yellow Crescent Rollers 4" to 16"
136 lbs
Yellow Large Rollers
Orange Rollers
Red Rollers
Low Profile Rollers
16" to 48"
*Need machine to lift
2" to 6"
65 lbs
2" to 8"
2" to 18"
~300 lbs*
65 lbs
80 lbs
Large Yellow Rollers
Yellow Crescent Rollers
Please contact us for your project pricing
**Operating as 1279881 Alberta Ltd.
BACK TO CONTENTS
NASTT-NW.COM | 49
REACH OUR ADVERTISERS
COMPANY NAME
PAGE
3D PIPE BURSTING
6
PHONE
WEBSITE/EMAIL
780-387-1075
3DPIPEBURSTING.COM
ADVANCED TRENCHLESS INC.
44
780-988-0879
ADVANCEDTRENCHLESS.CA
AECOM
47
306-955-3300
AECOM.COM
AH MCELROY SALES & SERVICE
48
888-554-0638
AHMCELROY.COM
AKKERMAN INC.
20
800-533-0386
AKKERMAN.COM
AP/M PERMAFORM
24
800-662-6465
PERMAFORM.NET
ASSOCIATED ENGINEERING GROUP LTD.
7
604-293-1411
AE.CA
[email protected]
B-LINE HORIZONTAL DIRECTIONAL DRILLING
34
780-210-2225
BARBCO INC.
18
800-448-8934
BARBCO.COM
BRANDT TRACTOR LTD.
14
888-2BRANDT
BRANDTTRACTOR.COM
CCI INC.
38
403-932-0560
CCISOLUTIONS.CA
CITY OF EDMONTON
10
780-496-6858
EDMONTON.CA
CLEAN HARBORS DIRECTIONAL BORING SERVICES LTD.
19
403-398-2490
CLEANHARBORS.COM
DIAMONDBACK SALES SERVICE AND RENTALS LTD.
49
780-695-3325
DIAMONDBACKSSR.COM
DIGITAL CONTROL INC.
DIRECT HORIZONTAL DRILLING
26-27
800-288-3610
DIGITAL-CONTROL.COM
36
780-960-6037
DIRECTHORIZONTAL.COM
EARTHWORM HORIZONTAL DRILLING LTD.
49
250-962-9682
[email protected]
ENCOMPASS INDUSTRIES
49
780-982-3265
ENCOMPASSINDUSTRIES.COM
FERRATEX, INC.
34
804-451-3667
FERRATEX.COM
GEOLYN PIPE INSPECTION SERVICES LTD.
39
403-453-0522
GEOLYN.CA
INNOVATIVE PIPELINE CROSSINGS INC.
36
403-398-2490
IPIPECROSSINGS.COM
INSITUFORM TECHNOLOGIES
23
800-234-2992
INSITUFORM.COM
IPEX MANAGEMENT INC.
51
866-473-9462
IPEXINC.COM
IVIS INC.
11
780-476-2626
IVISINC.COM
KAMLOOPS AUGERING & BORING
13
250-573-7814
KAMLOOPSAUGERING.COM
LAFARGE CANADA INC
49
780-479-5232
LAFARGENORTHAMERICA.COM/PIPE
LIQUIFORCE
2
800-265-0863
LIQUIFORCE.COM
LMK TECHNOLOGIES, LLC
4
815-433-1275
LMKTECHNOLOGIES.COM
MICHAEL BYRNE MANUFACTURING CO.
4
800-613-7206
BYRNEGROUP.COM
MICHELS CANADA
16
780-955-2120
MICHELSCANADA.COM
MMM GROUP LIMITED
40
780-423-4123
WWW.MMMGROUPLIMITED.COM
NORTHSTAR FLUID SOLUTIONS
30
403-455-1270
NORTHSTARFLUIDS.COM
NORTHWEST PIPE COMPANY
33
800-280-5511
WWW.PERMALOK.COM
OSCO MUDJACKING & SHOTCRETING LTD.
3
866-661-6726
MUDJACKING.COM
PIPELOGIX
9
866-299-3150
PIPELOGIX.COM
PRECISE CROSSINGS LTD.
24
866-962-6882
PRECISECROSSINGS.COM
ROYAL BUILDING PRODUCTS
43
403-201-8752
ROYALBUILDINGPRODUCTS.COM
RUSSELL NDE SYSTEMS INC.
49
780-468-6800
RUSSELLTECH.COM
SAMENG INC.
41
780-482-2557
SAMENG.COM
STANTEC CONSULTING
52
780-917-7000
STANTEC.COM
STRAIGHTLINE HDD
28
800-654-3484
STRAIGHTLINEHDD.COM
TERRA HDD SOLUTIONS INC.
21
403-452-8396
TERRAHDD.COM
THE CROSSING COMPANY
16
403-264-5050
THECROSSINGCOMPANY.COM
THURBER ENGINEERING LTD.
46
403-253-9217
THURBER.CA
THURO.CA
THURO
49
403-243-0276
TT TECHNOLOGIES
8
800-533-2078
TTTECHNOLOGIES.COM
UNDERGROUND DEVICES INC.
47
800-800-2118
UDEVICES.COM
UNDERGROUND PIPE INSPECTORS
21
403-984-9077
UNDERGROUNDPIPE.CA
WSP CANADA INC.
45
780-410-6740
WSPGROUP.COM
To reach the targeted readership of the NASTT-NW Journal please contact Chad at your
earliest convenience to discuss your company’s promotional plan for 2015:
Chad Morrison • 1-866-985-9788 • [email protected]
PLEASE SUPPORT THESE ADVERTISERS WHO MAKE NASTT-NW JOURNAL POSSIBLE.
50 | NASTT-NW JOURNAL |
Fall/Winter
2014
BACK TO CONTENTS
Go Trenchless
with
PVC
MUNICIPAL PVC PRESSURE PIPE
Engineered for Horizontal Directional Drilling
(HDD) and other trenchless applications,
TerraBrute®CR is a 100% non-metallic,
AWWA C900 PVC pressure pipe system.
Non-corroding and installation friendly,
TerraBrute CR allows you to standardize on
PVC throughout your municipal infrastructure.
Whether you’re using open-cut or trenchless
methods, there are no more problems
matching materials and couplings.
No more surprises.
MUNICIPAL PVC PRESSURE PIPE
(available in Canada only)
IPEX has introduced the new Fusible Brute
and Fusible Series PVC pipe for HDD and
other trenchless applications. While other
thermoplastic materials have been fused
routinely, our patented fusion process
incorporates a proprietary PVC formulation
providing the ONLY available method of
installing a continuous, monolithic, fully
restrained PVC pipe system. Fusible BruteTM
and Fusible SeriesTM PVC pipe can be used for
both pressure and non-pressure applications
in the water and sewer industries.
ELECTRICAL PVC RACEWAY
If you’re running electrical and
telecommunication cable conduit under
a busy road or highway, then you need
SceptaConTM trenchless PVC raceway.
ScepaCon was made for fast installation.
With its slide-in spline locking system,
it comes together quickly, creating a
water-tight seal in seconds. And SceptaCon
links seamlessly to existing PVC conduit
infrastructure and allows utilities to
standardize on PVC throughout their entire
electrical system.
Trenchless PVC Systems
Toll Free: 1-866-473-9462 | www.ipexinc.com
Products manufactured by IPEX Inc.
TerraBrute®CR, IPEX FusibleTM, Fusible BruteTM, Fusible SeriesTM and SceptaConTM are trademarks of IPEX Branding Inc.
Great ideas
are just below
the surface
“The multiple award winning Wandering River
Regional Waterline is an 88 kilometer system that
provides a reliable potable water supply to the
communities of Wandering River and Grassland,
and rural users. Delivered by design-build in less
than 14 months, we used directional drilling for
the entire length of the system. This is the longest
installation of fusible PVC pipe in North America.”
Senior Principal Todd Simenson helps
communities throughout Alberta effectively
manage their water resources.
Design with community in mind
stantec.com/water

Homework #7

Instruction Sheet - Superior Fireplaces

More easily producing of bellows are strongly required. A ...

HAWLE-FIT

UFP16/20 Underfloor Pex Pipe

Download - UniTwist

No-Dig roaD SHoW BelfaST

REPAIR KITS: RISER REPAIR AND REINFORCEMENT

See the full press release here

Russell Olgin, California Steel Industries, Inc.