Louisiana Transportation Conference Organization. David Sowers, Deputy Program Administrator Date Engineering and Program Management.

Transcription

1 Louisiana Transportation Conference Organization David Sowers, Deputy Program Administrator Date Engineering and Program Management February 2016

2 Today s FOCUS The big picture Continuing progress Understanding Bertha Project delivery and risk management

3 Building a new SR 99 Corridor

4 COMPLETED work

5 This is a SAFETY project The viaduct and neighboring seawall are vulnerable to earthquakes The viaduct in 1953

6 Geography vs. drivers

7 Today s FOCUS The big picture Continuing progress Understanding Bertha Project delivery and risk management

8 Envisioning the SOUTH PORTAL

9 Completed portion of the south cut-and-cover tunnel, Oct. 22, 2015 Building the SOUTH PORTAL

10 The south operations building, Jan. 20, 2016 Building the SOUTH PORTAL

11 BUILDING THE HIGHWAY inside the tunnel

12 Workers walking into the tunnel BUILDING THE HIGHWAY inside the tunnel

13 Southbound roadway deck construction January 2015 BUILDING THE HIGHWAY inside the tunnel

14 Southbound roadway deck platform construction January 2015 BUILDING THE HIGHWAY inside the tunnel

15 Envisioning the NORTH PORTAL

16 Visualization of the completed operations building Operations building on December 4, 2015 Building the NORTH PORTAL

17 Today s FOCUS The big picture Continuing progress Understanding Bertha Project delivery and risk management

18 Vital stats: 57.5 feet in diameter 326 feet long Nearly 7,000 tons About Bertha

19 Understanding BERTHA

20 Electrical rooms Ventilation duct Egress corridor Pump station Equipment rooms Utility corridor TUNNEL DESIGN

21 Understanding BERTHA

22 On Dec. 6, 2013, just hours after the machine passed the 1,000 foot mark Crews stopped tunneling after measuring increased temperatures in the machine

23 Seattle Tunnel Partners built a circular pit to access and repair the machine and resume tunneling

24 REPAIRING BERTHA

25 Repairing Bertha s cutting tools July 29, 2015 Repairing BERTHA

26 Reconnecting Bertha Aug. 26, 2015 Repairing BERTHA

27 Getting ready to resume tunneling Dec. 15, 2015 Repairing BERTHA

28 Today s FOCUS The big picture Continuing progress Understanding Bertha Project delivery and risk management

29 BUDGET overview Other project contracts $1.08 billion Four other SR 99 tunnel related projects $670 million WSDOT s contract with Seattle Tunnel Partners $1.35 billion = $3.1 billion

30 Design-Build a method of project delivery in which the owner executes a single contract with one entity (the Design- Builder) for design and construction services to provide a finished product. VS. Design-Bid-Build traditional approach for delivery of transportation projects where the owner completes the design and accepts the lowest responsive bid for construction from qualified contractors. What Is DESIGN-BUILD?

31 Schedule: Faster project delivery Completion cost: Better predictability of final cost at the onset Risk management: Strategic risk distribution and control Expertise: Optimize design for preferred means/methods Why use DESIGN-BUILD?

32 Typical design-bid-build process Environmental analysis and preliminary design NEPA complete 100% design and permits Typical design-build process Environmental analysis and preliminary design NEPA complete Procurement Begin construction Permits NTP Accelerated design-build process Environmental analysis and preliminary design NEPA complete Procurement Final design Begin construction Permits Procurement NTP 1 NTP 2 Begin construction DB preliminary design DB final design Comparison of contracting APPROACHES

33 Schedule incentives and disincentives for: Final completion dates. Milestone completion dates. Open to traffic hours. Level playing field: Upset price for design-build contract. Contract terms bonding, limits of liability, insurance. Shared risk funds: Owner controlled. Contractor incentives. The design-build CONTRACT

34 Construction monitoring AREA

35 Protecting structures along the SR 99 tunnel route Protecting STRUCTURES

36 Disputes Review Board Assist in the resolution of disputes between WSDOT and the design-builder. Three person board of independent experts. Utilize when standard dispute resolution is unsuccessful and prior to the filing of a claim. Provide nonbinding recommendations designed to expose the disputing parties to an independent view. DISPUTES

37 QUESTIONS? Website: