The state’s viaduct replacement projects are estimated to cost $3.3 billion. Funding comes from state, federal and local sources, as well as the Port of Seattle and tolls.
May 2019 update: In the 2017-19 budget, we requested additional funding to deliver the remaining program work. $59 million of this request was approved by the legislature in the 2017 budget, and another $54 million in the 2018 supplemental budget. $35 million was approved with the 2019 legislative budget.
|State projects||Project status||Budget ($M)|
|SR 99 Tunnel Project (Includes design-build project, north and south access contracts, and new north surface street connections.)||Construction||$2,125.6|
|SR 99 South Holgate Street to South King Street Project (south-end viaduct replacement)||Construction||$347.7|
|Central Waterfront Viaduct Removal, New Alaskan Way with connections to Elliott and Western avenues and the Battery Street Tunnel decommissioning||Planning||$328.9|
|Central Waterfront Construction Mitigation||Ongoing||$24.7|
Other Moving Forward Projects:
|Prior Environmental Impact Statements, Right of Way and Design Costs||$163.7|
|Total Use of Funds||$3,325.7|
|2005 Gas Tax (Partnership Funding)||$1,671.0|
|2003 Gas Tax (Nickel Funding)||$326.4|
|Port of Seattle||$267.7|
|Total Source of Funds||$3,325.7|