Reeder Road Culvert Replacement

We are working on a long term repair to replace two 8-foot diameter culverts that failed in 2022. The road is open in the meantime.

A map graphic showing the location of the project site where Dairy Creek Slough crosses under Reeder Road, with a locator map showing the location near the center of the eastern shore of Sauvie Island.
  • Location: Reeder Road crossing at Dairy Creek (see map)
  • Schedule: permanent repairs planned 2025
  • Estimated Cost: tbd
  • Funding Source: tbd

Project Description

Two culverts under Reeder Road partially collapsed in early 2022. They carried a slow-moving section of Dairy Creek, and their collapse caused the bank above them to fall in. This created large sinkholes in both lanes.

The road is currently open.

We are working on a long term repair to replace the two 8-foot diameter culverts with either a large culvert or a bridge.

Traffic Impacts

The road is expected to remain open until we are ready for final repairs in 2025. As we design the repairs, we will determine what closures will be needed.

What We’ve Done

A contractor first made temporary repairs by removing asphalt from the collapsed southbound lane and compacting rock so that one lane could remain open. The northbound lane was closed until early July so the county could monitor the culverts for additional sinkholes.

In early summer, the northbound lane was rebuilt with compacted gravel and fresh asphalt, allowing both lanes to open for summer crowds.

Next Steps

We have begun work on a long term repair that will replace the failed culverts with a large culvert or a bridge. This will be an expensive repair that will require permits from multiple agencies. We are now looking for funding to complete the project.


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Last reviewed July 16, 2024