In early 2020 Multnomah County replaced a failed culvert that carries Rock Creek under NW Rock Creek Road near NW Skyline Blvd. To complete the project, the County's Transportation Division will plant trees and other plants on the slopes that were rebuilt after the new culvert was installed. The planting work is done in the fall to ensure that new plants have the best conditions to take root.
When the road is closed above the culvert, orange road closure signs will be placed at the nearest intersections
The detour route when the road is closed is NW Skyline Blvd. to NW Elliot Road to NW Rock Creek Road
Multnomah County maintains NW Rock Creek Road and more than 274 miles of roads.