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Alaskan Way Viaduct and Seawall Replacement Program - Photo Gallery

The underside of the newly build viaduct. Construction of the Alaskan Way Viaduct at Madison Street, early 1950s. Alaskan Way Viaduct and downtown Seattle seen from a Bainbridge Island ferry, 1968. Photo courtesy of the Museum of History and Industry. Four workers reinforcing a support beam for the future Alaskan Way Viaduct. Construction of the verticle piers for the viaduct, 1950s.
Construction of Seattle's waterfront seawall, circa 1934. A 1952 photo of the viaduct. Pouring fill during construction of Seattle's seawall in the 1930s. View of the waterfront from the Alaskan Way Viaduct, 1969. Photo courtesy of the Museum of History and Industry. Looking southeast over old downtown Seattle, a snow-covered Mount Rainier looming in the distance.
Seneca Street off-ramp from Alaskan Way Viaduct under construction, 1961. Photo courtesy of the Museum of History and Industry. The south opening of the Battery Street Tunnel and the north end of the Alaskan Way Viaduct. The viaduct serves Seattle's downtown and surrounding neighborhoods and industrial centers. A view of the viaduct and downtown Seattle from the Bell Street Marina. A recent photo of the viaduct from Alaskan Way and the Colman Ferry Terminal.
The Port of Seattle relies heavily on the SR 99 corridor. The upper deck of the Alaskan Way Viaduct in the Pioneer Square vicinity. The south end of the Alaskan Way Viaduct. The viaduct is an important freight and commercial vehicle route. It connects the Duwamish industrial core to Ballard Interbay and North Seattle. Aerial view of present downtown Seattle and its two primary north-south highways, I-5 and SR 99. Time lapse view of downtown Seattle and distant Olympic Mountains.
The viaduct cutting through Seattle's central waterfront. The aging Seattle seawall, 2002. Microscopic image of L. Limnoria, commonly known as the Gribble. Gribbles have substantially contributed to the seawall's deterioration. Gribble damage to boards of a seawall platform. Looking north along the seawall.
Deteriorating Seattle seawall piers. Rotting boards from the seawall. Another view of the diminishing seawall. Damaged concrete support beams and exposed rebar after the 2001 Nisqually earthquake. Diagram of vulnerable points on the Alaskan Way Viaduct and seawall.
WSDOT crews repairing earthquake damage on the viaduct in April 2001. The Nisqually earthquake resulted in $3.5 million in repairs. Reinforced piers on the Alaskan Way Viaduct after the 6.8 Nisqually earthquake. Eroded concrete and exposed rebar on the viaduct's upper deck. WSDOT crews fix these wear and tear damages during earthquake inspections ever six months. Reinforced columns on the viaduct. Crews installing column supports to the most vulnerable area of the viaduct - across from Colman Ferry Terminal.


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