TURCOT INTERCHANGE DESIGN-BUILD PROJECT
Ricet Nadeau National Vice President, PPP/Design Build, WSP
Jean-François Gauthier Deputy Vice President, Major Projects – Transportation, WSP
Sébastien Marcoux Deputy Project Director, KPH Turcot
September 20, 2016 THE LARGEST INTERCHANGE IN QUÉBEC
Airport Turcot
Champlain
2 THE INTERCHANGE AT A GLANCE
Airport Downtown 7 km
• Opened to traffic in 1967 • Volume of traffic: 300,000 cars and 30,000 trucks/day • 13 existing ramps ranging from 18 to 29 m in height
3 PROJECT OVERVIEW
• Project Overall Cost = ± 3.7 B$ • Design Build Project Cost = 1.5 B$ • Contract Signature: February 27th 2015 • End of Contract: 2020
4 AN INTEGRATED TEAM
Construction Joint Venture Design
5 TECHNICAL EXPERTISE BASED ON COLLABORATION
Design Timeline ± 1 year starting in February 2015 2 years for the bridges Support During ± 5 years Construction Offices involved Laval, Quebec, Montreal, Longueuil, Gatineau, Saguenay and Mont-Laurier
6 ENGINEERS INVOLVED EARLY IN THE PROJECT
WSP FULL TIME EQUIVALENT
300
250
200
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100 Contract signature 50
- Jan. 15 Apr. 15 Jul. 15 Oct. 15 Jan. 16 Apr. 16 Jul. 16 Oct. 16 Jan. 17 Apr. 17
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7 THE ENGINEERING CHALLENGE AN INNOVATIVE APPROACH
• Design Innovation (out of the box thinking) − Geometry Optimization: Construction Away from the Existing Interchange by Moving A-20 North − Elimination of the 4th Level − Elimination of 5 tunnels • The Construction Joint-Venture Reduced the Schedule by ± One Year
9 REALIGNMENT HIGHWAY 20
MTQ ALTERNATIVE
10 11 RAMP FROM WEST TO NORTH
MTQ ALTERNATIVE
12 THE ARCHITECTURE AND URBAN INTEGRATION CHALLENGE 14 15 16 17 18 19 MAINTENANCE OF TRAFFIC AND CONSTRUCTION PHASING 21 22 Phase 1 23 Phase 2 24 Sub-Phase 2a 25 Phase 3 26 Phase 4 27 Phase 5 28 Phase 6 29 Phase 7 30 Phase 8 31 Final 32 ANIMATION A-15 NORTH TOWARDS R-136 EAST CONSTRUCTION THE CONSTRUCTION IN NUMBERS
• 4 interchanges • 5,000,000 m³ of excavation and backfill • 1 cable-stayed bridge • 2,000,000 MT of aggregate • 45 structures • 300,000 m³ of concrete demolition • 438,000 m2 of concrete pavement • 328,000 m2 of asphalt • 90,000 m² of retaining walls • 21,000 MT of structural steel
35 SCHEDULE KEY DATES-DELIVERING AHEAD OF TIME
Activities Contractual Dates KPH Dates Difference Last demolition December 31, 2020 September 5, 2019 - 15 months
Substantial completion Marc 31, 2021 June 29, 2020 - 9 months
Final completion June 30, 2021 September 28, 2020 - 9 months
DB duration 73 months 64 months - 9 months
36 ONGOING WORK BY SECTORS
37 STATUS OF WORK
• 25 % of work completed • Nearly 800 craft workers • 200 supervisors • 200 designers • Design completed: 70%
38 EXCAVATIONS AND BACKFILL
More than 2.7 M m3 of material have been moved
39 CHALLENGE OF MATERIAL MANAGEMENT
• Geotechnical and geotechnical properties • Tracking of all material movement: quantities, origin, destination • Monitoring temporary stockpiles • Layers of soil left in place • Risk Management Actions
Reused everywhere on site Must be used under the TN Must be used under the TN Must be exported if excavated Must be excavated and exported 40
40 STRUCTURES
22 structures under construction
41 STRUCTURES
6 structures to be completed and commissioned in 2016 23,000 m2 of retaining walls to build in 2016
September 4, 2016
42 WORKING NEAR EXISTING STRUCTURES
43 WORKING NEAR EXISTING STRUCTURES
44 STEEL GIRDERS INSTALLATION – AB-10 BRIDGE
45 MODELLING OF CONSTRUCTION STEPS - VIDEO
46 DISMANTLING
300,000 m3 14,200 m3 of concrete to dismantle of concrete dismantled to date
47 DISMANTLING RAILWAY TUNNEL
48 DISMANTLING RAILWAY TUNNEL - VIDEO
49 SITE VISIT
50 QUESTIONS
51 NOTES
52 NOTES
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