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New SR 99 Deep Bore Tunnel Project Fact Sheets And Maps From WSDOT

Two community open houses were held earlier this week, in Ballard and West Seattle, by the Washington State Department of Transportation, King County DOT, and the City of Seattle DOT. At the events, WSDOT made available some new fact sheets and maps to help answer questions about the inland downtown deep bored tunnel picked to replace the earthquake-prone Alaskan Way viaduct on State Route 99 along Seattle’s central waterfront. Below are links to online (pdf) versions of three fact sheets, and to .jpg images of the five new maps. A compendium of additional information and media coverage on the tunnel decision is here. WSDOT’s Alaskan Way Viaduct replacement project Web site is here.

FACT SHEET: “A Comparison Of the Big Dig And The Alaskan Way Viaduct And Seawall Replacement Program.”

FACT SHEET: “A World of Experience: Learning From Local And International Tunnel Projects.”

FACT SHEET: “All Tunnels Are Not The Same: SR 99 Deep Bored Tunnel vs. The Waterfront Tunnel.”

MAPS (3) HERE: 1) “How Northwest Seattle Will Access The Deep Bored Tunnel” 2) “Two-Way Mercer Corridor;” AND 3) “How Northwest Seattle Will Get To And Through Downtown Using The New Alaskan Way.” (NOTE: Because the Mercer Corridor map may be difficult to view in the above link, we attach here a more reader-friendly standalone jpg of it).

MAPS (2) HERE: 1) “Access From West Seattle To Areas North Of Downtown;” AND 2) “Access From West Seattle To Downtown.”