(May 12, 2023) The NE 33rd Avenue Bridge will be fully closed for the final stages of repair starting Tuesday, May 12. The bridge, a critical connection over NE Lombard Street, has been partially closed after engineers with the Portland Bureau of Transportation (PBOT) observed cracking in the concrete in the bridge’s cross beams during an inspection following the summer 2021 heat dome.
Over the past year, PBOT crews have completed construction of a new foundation and temporary support structure to hold up the bridge during repairs. In this next stage of repair, crews will jack the bridge so it is supported by this temporary support structure. This will allow crews to demolish the cracked concrete and replace it.
PBOT engineer inspecting the cracking under the NE 33rd Avenue Bridge following the 2021 heat dome
PBOT engineers suspect the record breaking temperatures during the June 2021 heatwave contributed to the cracking on the bridge support. The bridge is over 90 years old and like much of Portland's aging transportation infrastructure, is not resilient against climate change. In addition to this bridge damage, the heat dome caused streets to buckle including sections of N Denver Avenue in the Kenton neighborhood and SE Francis Street in Creston-Kenilworth and required the temporary shutdown of Portland Streetcar which experienced melting power cables.
Provided the bridge repair work goes as planned, PBOT will be able to fully reopen the bridge and all its ramps to people driving, walking, biking and taking transit by mid-summer. The age of the bridge complicates repairs. If crews discover additional cracking during the repairs, the work and associated detours may be extended.
Detours and a full bridge closure is required to complete this work. Detour routes will be signed during repairs and people driving will be directed as follows:
The PBOT team recognizes that this bridge closure has significant impacts and would like to thank Portlanders for their patience with this complex repair.
People riding transit can visit trimet.org/#alerts/ for the latest service impacts.
This work is weather-dependent, and the schedule may change.
PBOT will provide periodic updates throughout construction. To sign up for construction updates, visit www.portland.gov/ne33rdbridge.
Thank you for your cooperation and patience while we complete this work.