Additional Review of the Impacts of Deep Bored Tunnel Tolling Diversion on City Streets; Identification of Mitigation
This report is intended to provide supplemental analysis of the Alaskan Way Viaduct
Replacement Project (AWVRP) from the perspective of the City of Seattle, the
jurisdiction that will realize a majority of the project’s benefits or impacts. It comes in
response to the Alaskan Way Viaduct Replacement Project 2010 Supplemental Draft
Environmental Impact Statement (AWVRP 2010 SDEIS) findings. The SDEIS finds that
between 50% and 55% of traffic projected to use a deep bored tunnel would divert
back to city surface streets and I-5 when tolls are assessed at levels needed to cover $400 million in revenue bonds.