Skip to main content

Seattle bridge repairs required

Major repairs are required for the West Seattle Bridge.
By MJ Woof August 24, 2020 Read time: 1 min
Costly repairs are needed to the West Seattle Bridge – image courtesy © Mariana Ianovska, Dreamstime.com

Major repair work is needed for the West Seattle Bridge. Estimates suggest that the necessary work could cost from US$160-$225 million.

Seattle Department of Transportation (SDOT) is securing the financing required for the work. Funding is being sourced from the city’s budget as well as from loans.

The cracking in the bridge, which opened to traffic in 1984, appears to have been caused by a number of factors. The bridge carries more traffic and more heavy trucks than it was originally designed for and an extra lane was added some years ago. The bridge also suffered from a jammed bearing, as well as coping with an earthquake and creep in its concrete structure, resulting in a reduction of tension in the steel reinforcement.

Related Content

  • More on the Newmarket Viaduct replacement
    June 15, 2012
    When it was completed in 1965 – just six years after the Auckland Harbour Bridge – the six-lane Newmarket Viaduct with its tall, slender piers was something of an engineering wonder, the first of its kind in the Southern Hemisphere. Forty years on it had become a much-maligned contributor to Auckland’s chronic traffic congestion, too weak seismically to withstand the heaviest loaded trucks let alone a severe earthquake, so narrow in the shoulders that any accident stopped traffic flow and made it difficult
  • Nepal highway subsidence problem causing traffic disturbance
    March 11, 2017
    Subsidence on a key stretch of highway in Nepal is causing major traffic disturbance. The BP Highway, also known as the Banepa- Sindhuli- Bardibas Road, has suffered subsidence on the Nepalthok-Khurkot stretch. The collapsed section measures 27m long and is causing delays for drivers. This Highway is an important route as it connets Nepal’s capital Kathmandu with Eastern Terai. Vehicles have been diverted to an alternative route, although part of the roadway is still being used to carry traffic in one d
  • Funds released to repair Skagit Rover Bridge in Washington State
    June 19, 2013
    Some US$15.6 million in federal emergency funds is being made available to Washington State to help repair the Interstate 5 bridge over the Skagit River, which collapsed on May 23rd 2013. The funds were released by US Transportation Secretary Ray LaHood. A section of the four-lane bridge, located around 100km north of Seattle, collapsed into the water, disrupting travel in both directions. This funding follows $1 million in quick release emergency relief provided the day after the collapse. The Washington
  • Temporary bridge replacement in the US
    July 2, 2019
    A temporary bridge structure provided by Acrow Bridge is maintaining traffic flow for a key crossing in Vermont. The bascule bridge is allowing both vehicular and vessel traffic to pass during the reconstruction work to the North Hero-Grand Isle Drawbridge in Vermont. The US$60 million project involves replacing the historic twin leaf bascule bridge on Lake Champlain. This modular steel bascule bridge is allowing transport to continue to and from the Lake Champlain island towns of North Hero and Grand Isl