The state’s viaduct replacement projects are estimated to cost $3.1 billion. Funding comes from state, federal and local sources, as well as the Port of Seattle and tolls.
December 2016 update: Based on a recent review of the budget, the program is anticipating a 1.8 percent budget increase, or a cash-flow need of up to $60 million in the 2017-2019 biennium, to ensure continued progress on the program. A total provisional budget need of $149 million may be needed to complete the program. The tables below reflect the budget as approved by the Legislature, and do not include these additional funding needs.
|State projects||Project status||Budget|
|SR 99 Tunnel Project (Includes design-build project, north and south access contracts, and new north surface street connections.)||Construction||$2,053.2|
|SR 99 South Holgate Street to South King Street Project (south-end viaduct replacement)||Construction||$351|
|Central Waterfront Viaduct Removal, New Alaskan Way with connections to Elliott and Western avenues and the Battery Street Tunnel decommissioning||Planning||$291.7|
|Central Waterfront Construction Mitigation||Ongoing||$29.7|
Other Moving Forward Projects:
|Prior Environmental Impact Statements, Right of Way and Design Costs||$163.7|
|Total Use of Funds||$3,137.4|
|2005 Gas Tax (Partnership Funding)||$1,523.0|
|2003 Gas Tax (Nickel Funding)||$326.3|
|Port of Seattle||$267.7**|
|Total Source of Funds||$3,137.4|
* The 2009 Legislature stated the finance plan must include no more than $400 million in toll funding. The budget amount was revised to $200 million during the 2012 legislative session, and an additional $200 million in federal funds was provided to the program.
**The Port of Seattle has committed $300 million to the replacement program. The state signed an agreement with the Port in August 2013 for this funding. To date, $25 million of the Port’s contribution has been used for program-related work.