SW Andover St Pedestrian and Bicycle Bridge

Updated: June 10, 2020

What's happening now?

Our team is close to finalizing design for the SW Andover St bridge seismic retrofits. We expect to complete design this summer. Construction is anticipated to begin in late 2020 and last approximately 2-3 months.

To stay up to date with the latest project information, sign up for our project email list

What to expect

In order to complete this work safely and efficiently, the bridge will be fully closed for the duration of construction. Detours will be in place for those walking and biking. The detour route will be confirmed closer to the start of construction. We'll inform residents, nearby businesses, and people traveling through the area of the closure schedule and timing of construction throughout the project. This project will not interfere with, nor be impacted by, the West Seattle Bridge closure.

Project overview

Earthquakes could have a significant detrimental effect on Seattle's infrastructure. To address seismic risks to city infrastructure, the City of Seattle established the bridge seismic retrofit program. This program will assess the seismic vulnerability of the City's bridges and prioritize limited funding to reduce this transportation infrastructure vulnerability.

As part of the Levy to Move Seattle, 16 bridges were selected for seismic retrofits, including the SW Andover St Pedestrian and Bicycle Bridge. The bridge was built in 1961, prior to the modernization of the seismic design code. This work will reduce the bridge's vulnerability to earthquakes.

Map of SW Andover Bridge project area

The SW Andover St Pedestrian and Bicycle Bridge is situated northeast of the intersection of 35th Ave SW and Fauntleroy Way SW. The west end of the bridge is located just east of the corner of SW Andover St and Fauntleroy Way SW, and the east end of the bridge is located one block west of SW Andover St and 32nd Ave SW, providing the West Seattle community with a vital pedestrian connection between the Youngstown and Genesee neighborhoods.

The proposed retrofits for the SW Andover Pedestrian and Bicycle Bridge include:

  • Installing new expansion joints over the main span 
  • Strengthening the east abutment (where the bridge connects to the ground) 

Project Schedule

30% Design Complete
60% Design Complete
Final Design Summer 2020
Construction begins Late 2020


The project is funded through the Levy to Move Seattle. Approved by voters in 2015, the 9-year, $930 million Levy to Move Seattle provides funding to improve safety for all travelers, maintain our streets and bridges, and invest in reliable, affordable travel options for a growing city.

Get involved

We're committed to keeping you informed and working with neighbors to limit construction impacts to the extent feasible. Here are some ways to get more information about the project:

Project Materials

Factsheet (June 2020)