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• Nighttime noise construction information, (253) 620-4440
• Contact the TNB Office, 1 (877) 762-7769
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Lisa Murdock
Olympic Region Communications Manager
(360) 357-2789
WSDOT Olympic Region
(360) 357-2600
Contact us and tell us
what you think:
orfeedback@wsdot.wa.gov or
Online Bridge Form
WSDOT
3214 50 Street Court NW, Building D, Suite 302
Gig Harbor, WA 98335
TNC
2110 14th Ave. NW
Gig Harbor, WA 98335
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Design/Build Agreement Summary
The Design/Build Agreement for Tacoma Narrows Bridge Project defines the terms and conditions under which the Tacoma Narrows Bridge will be built by Tacoma Narrows Constructors, or TNC, a joint venture of Bechtel Infrastructure Corporation and Kiewit Pacific Company.
Contract Price
WSDOT will pay TNC a fixed price of $615 million. This does not include WSDOT's costs of contract administration or contingency funds. Monthly payments will be tied to progress over expected construction duration of 1,980 days (65 months).
TNC's Obligations Include:
- Building a new suspension bridge south of the existing bridge
- Upgrading the existing bridge to current seismic standards.
- Improving SR 16; new 36th Street interchange, new 24th Street over-crossing and adding one additional lane on each direction of SR 16 between Jackson Avenue and the new 36th Street interchange.
- Readiness for the toll contractor to begin installing the system in just over three years after notice to proceed.
- Completion of the new bridge and related highway improvements to be ready for traffic in just over four and one-half years.
- Completion of all the work including the existing bridge seismic and deck improvements in about five and one-half years. TNC is required to pay financial penalties to WSDOT for TNC's unexcused failure to meet these completion dates.
Other items in the agreement inlude:
- WSDOT Oversight Responsibilites
- Allocation of Risks to WSDOT and TNC
- Warranties
- Insurance
- Dispute Resolution
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