To view the detour route maps click: Northeast 94th Avenue and Northeast 107th Avenue (PDF)


Underground utility work has been completed and the road reopened in early November. We weren't able to construct the new roundabout before the rainy weather set in, so the road will be closed again in the spring to construct the roundabout. The temporary speed bumps in the area owned by the contractor will remain until the roundabout construction is complete.


We have rescheduled the start of the closure of the intersection of Northeast 99th Street at Northeast 94th Avenue to begin Monday, Sept. 26. The closure is expected to be in place for 20 days but may be extended if the weather permits.  The contractor anticipates doing the necessary utility work before a roundabout can be built under a separate closure at a later date.  The work necessary to build the roundabout is weather dependent and unable to be completed during winter months.  Drivers will need to take a detour route to allow Clark County’s contractor to make the necessary utility upgrades in order to construct a future new roundabout.

Neighbors can expect the contractor to begin preparation work of the designated detour route by placing temporary asphalt speed bumps through the main detour route prior to the closure date. The temporary asphalt speed bumps will only be in place for the duration of the work of the intersection to build the roundabout. The asphalt bumps will be removed by the contractor immediately after the detour of  the intersection is removed. 

Virtual Open House

Thank you to everyone who joined us at our open house! The open house was held virtually on Wednesday, January 12, 2022.

To watch a recording of the virtual open house, click on the link below.
PowerPoint Slides 


In order to improve cross circulation in the area, Clark County will be improving NE 99th Street, between  NE 94th Avenue and NE 117th Avenue (SR-503). The proposed design will  install the missing segment of roadway,  between NE 94th Avenue and NE 105th Avenue, at the north end of the  closed Leichner Landfill. 

Link to construction plans. * To open FTP site use Internet Explorer.


Vicinity Map.jpg

Proposed improvements include: 

  • Roundabouts at the intersections of Northeast 94th Avenue/ Northeast 99th Street, Northeast 107th Avenue/ Northeast 99th Street and 99th Street/110th Avenue/112th Avenue
  • Three raised pedestrian refuge islands at Northeast 96th Avenue, Northeast 114th Avenue and Northeast 115th Avenue
  • Sidewalks, bike lanes and/or mixed use paths on both sides of NE 99th Street
  • A travel lane in each direction
  • Center turn lane in specific locations 
  • New street lighting at roundabouts
  • Noise barrier walls at specific locations - see maps below for specific locations

In June 2019, Clark County Public Works hosted an open house where original designs were presented. Community members offered feedback on those designs and the maps below shows the changes that were made.

Click here for PDF copy of image below. 

NE 99th Street Corridor  - Map 1

Click here for PDF copy of image below. 

NE 99th Street Corridor


The total construction cost is an estimated $17 million. Southwest Washington Regional
Transportation Council awarded a Surface  Transportation Block Grant- Urban Large federal
grant in the amount of $4 million to support this  project. Clark County will be applying for additional federal and state grants in the near future. The remaining balance of the construction cost will be paid for using Traffic Impact Fees, County Road Fund and Real-Estate Excise Tax.

Comments or Questions

Do you have questions about this project? Public Works invites your input and sends out early notice so residents have time to offer comments and ask questions. Please contact the project manager.

September 2022 Flyer Update (PDF)
December 2021 Heads Up (PDF)
October 2020 Fact Sheet (PDF)
August 2020 Heads Up (PDF)
June 2019 Heads Up (PDF)

Michael Cronin, project manager
Clark County Public Works

Brad Fisher, construction manager
Clark County Public Works