September 4, 2020

Recent Work

Work on safety improvements at two locations between Highway 30 and NW Skyline Blvd. continues to go well. The contractor is on schedule to reopen the road in late September.  The reopening date will be announced when it is 100% confirmed.

Installing boulders in streambed near NW 8th Ave. culvert.
Installing boulders in streambed near NW 8th Ave. culvert.
NW 8th Ave. Curve

  • A hard closure of NW Cornelius Pass Road is in place near NW 8th Ave. where a new culvert was installed under the road. 

  • Fish rock and streambed material were installed at the ends of the culvert to improve fish passage.

  • The creek is flowing through the new culvert.

  • Work on the wingwalls and concrete aprons at the ends of the culvert was completed and fill was added behind the walls.

  • Next week the contractor will clear vegetation in the road shoulder and install plants on a bioslope that will drain to a new bioswale that will detain and treat stormwater from the road before it enters the creek.

  • After Labor Day, roadway work will begin near the culvert. The contractor will mill or remove the top layer of asphalt in preparation for final paving.  

  • Lane striping is scheduled the week of September 14.

Constructing a bioswale to treat stormwater in S curves, 8-31-2020.
S Curves

  • This week the contractor installed materials for a bioswale that will detain and treat stormwater runoff from the road. 

  • Concrete barriers are being installed with inlets for the stormwater. 

  • A concrete foundation for a steel traffic impact attenuator (at the end of a guardrail) was poured.  

  • New road signs were installed this week.

  • Next week the barriers will be washed and painted and reflectors will be installed

  • Wiring will be installed for flashing beacons that will alert drivers of approaching curves. 


  • Road Closure: NW Cornelius Pass Road is closed to through traffic between Highway 30 and NW Skyline through September during construction.  

  • Use Caution on Side Roads: Please drive with caution on west hills side roads, including the main detour on NW Newberry Road and NW Skyline Blvd.  Neighbors report an increase in speeding vehicles and heavy traffic on roads such as NW McNamee Road.  Please use caution and drive within the speed limit on these narrow, winding and steep side roads.

Road Transfer to ODOT

ODOT recently sent out a mailing to neighbors who live near the section of NW Cornelius Pass Road that will be transferred from Multnomah County to Washington County to ODOT.  The section of the road between Hwy. 26 and Hwy. 30 will be transferred to ODOT.  The transfer is expected to happen in late 2020 or early 2021.  ODOT has a website with more information on the transfer at:

No update next week:  We won’t be sending an update next week due to a staff vacation.

For more information:  Visit: