13th Ave NW/Holman Rd NW Pedestrian Bridge Seismic Retrofit

Updated October 18, 2024

What's Happening Now?

Construction on retrofits to help the 13th Ave NW/Holman Rd NW Pedestrian Bridge better withstand earthquakes is ongoing! As a reminder, the outermost lanes on Holman Rd NW have been closed to create space for crews to work on both sides of the bridge at the same time.  

The outermost lanes on Holman Rd NW have been closed to create space for crews to work on both sides of the bridge at the same time. In addition, the 13th Ave NW/Holman Rd NW Pedestrian Bridge is closed to all people walking, biking, and rolling for the duration of construction (up to 5-6 months) to ensure their safety and allow our crews to work as efficiently as possible. New street-level crossings have been constructed on each side of the bridge allowing people to still cross the street while giving our crews room to work. To receive project updates, sign up to join our project listserv

Project overview

Map of the 13th Ave NW/Holman NW Bridge

Earthquakes could have a major impact on Seattle’s infrastructure. To address seismic risks to city infrastructure, the City of Seattle established a bridge seismic program to assess how vulnerable the City’s bridges were to earthquakes, and to retrofit bridges to better withstand the potential impacts of an earthquake. 

As part of the Levy to Move Seattle, 16 bridges were selected for seismic retrofits, including the 13th Ave NW/Holman Rd NW Pedestrian Bridge. The 13th Ave NW/Holman Rd NW Pedestrian Bridge is an older bridge constructed in 1964 prior to the modernization of the seismic design code. The bridge provides a more direct connection across Holman Rd NW for the North Beach/Blue Ridge and Crown Hill neighborhoods.  

We're not planning on changing the current use and operation of the bridge. The planned seismic retrofits to 13th Ave NW/Holman Rd NW Pedestrian Bridge include several modifications to strengthen existing bridge components and reduce the bridge’s vulnerability to earthquakes. The following are major construction elements:  

  • Installing carbon fiber wrapping to strengthen the bridge's beams and columns 
  • Strengthening foundations with reinforced concrete 
  • Installing ground anchors at footings of the main columns and landings 
  • Repairing cracks and damaged concrete

What to expect during construction 

Construction began in July 2024 and is anticipated to last approximately 5-6 months. We will continue to share information on our webpage and through weekly email updates. You can sign up for our project listserv to receive email updates.  

To complete the work as safely and efficiently as possible, the bridge is closed to people walking, biking, and rolling during construction.  New street-level crossings have been constructed on each side of the bridge allowing people to still cross the street while giving our crews room to work. In addition, the outermost lanes on Holman Rd NW have been closed to create space for crews to work on both sides of the bridge at the same time. We understand these closures will impact everyone who uses the bridge and Holman Rd NW regularly and we will do what we can to minimize impacts. 

In addition to the above closures, we currently anticipate the following construction impacts:   

  • Work in the public right-of-way near your home or business 
  • Temporary on-street parking restrictions, with "no park" signs placed 72 hours in advance
  • Temporary sidewalk and crossing closures for people walking and rolling with detours
  • Staged construction equipment and materials as well as noise, dust, and vibrations in the work area
  • Typical weekday work hours of 7 AM – 5 PM, Monday through Friday  

Project schedule* 

30% Design Complete
60% Design Complete
90% Design Complete
Final Design Complete
Construction Begins July 2024

* The schedule is subject to change.  

Construction is scheduled to last approximately 5-6 months. Construction schedules are also subject to change and depend on factors such as weather and availability of crews and materials. 

Funding 

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: 

Materials 

Translation and interpretation 

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Transportation

Greg Spotts, Director
Address: 700 5th Ave, Suite 3800, Seattle, WA, 98104
Mailing Address: PO Box 34996, Seattle, WA, 98124-4996
Phone: (206) 684-7623
684-Road@seattle.gov

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The Seattle Department of Transportation (SDOT) is on a mission to deliver a transportation system that provides safe and affordable access to places and opportunities for everyone as we work to achieve our vision of Seattle as a thriving, equitable community powered by dependable transportation.