WSDOT: Alaskan Way Viaduct

MENG Analysis has completed four value engineering studies on the Alaskan Way Viaduct (AWV) and Seawall replacement project.

S. Holgate - S. King Street Segment (2008)

This fourth VE study of the AWV was the southern "book end" project that would proceed regardless of the tunnel vs. elevated replacement option chosen.  This revisited the engineering and traffic challenges posed in the Southend Corridor VE study, however with a new twist of being able to transition to both tunnel and elevated options.

Battery Street Tunnel Fire & Life Safety Upgrades (2007)

 This third VE study was the first of two "book end" projects and focused on the aged 1953 cut and cover tunnel's structure, electrical and mechanical ventilation systems.

South End Corridor (2005)

This second VE study focused on the traffic challenges stemming from several factors in this area of Seattle: cargo freight transfers between the Port of Seattle T-18 Cargo Terminal and the Burlington Northern Santa Fe, (SIG) Seattle International Gateway rail lines; SAFECO Field (Seattle Mariners Stadium) and QWEST Field (Seattle Seahawks) pedestrian and vehicle traffic; heavy utility and infrastructure considerations.

AWV & Seawall Replacment (2005)

This was the first VE study that primarily focused on various options to avoid costs and improve construcability of the tunnel alternative.  The maintenance of business traffic and construction phasing in this central business district of Seattle's waterfront was an important consideration.


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