Alaskan Way Viaduct, Former elevated highway in downtown Seattle, United States
The double-deck concrete structure stretched 2.2 miles along Elliott Bay, connecting the West Seattle Freeway to the Battery Street Tunnel in Belltown.
Built between 1949 and 1959, the viaduct carried State Route 99 until damage from the 2001 Nisqually earthquake prompted plans for its replacement.
The elevated freeway separated downtown Seattle from its waterfront for over 60 years, influencing the development and connectivity of the urban landscape.
The viaduct carried 91,000 vehicles daily until its closure in 2019, when traffic was redirected through a new underground tunnel beneath downtown Seattle.
Demolition teams recycled 240 million pounds of concrete and 15 million pounds of steel rebar from the structure during its removal in 2019.
Location: Seattle
Inception: 1953
GPS coordinates: 47.60399,-122.33825
Latest update: May 26, 2025 21:22
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