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The Project – US 101 Carlsborg and Sequim area paving

WSDOT will repave US 101 from Kitchen-Dick Road to Simdars Road near Carlsborg and Sequim. A Complete Streets review is part of this pre-design. We will look for lower-cost options to make the roadway safer for pedestrians, bicyclists, and transit riders. Some or all these options may become part of the paving project.  

US 101 Carlsborg and Sequim area posted speed limits

An aerial graphic depicting US 101 from Kitchen-Dick Road to Simdars Road and indicating where the speed limit changes from 55 mph to 45 mph in the Carlsborg area.
An aerial photo of the US 101 Carlsborg and Sequim paving area showing the posted speed limits.

This six-mile segment of US 101 in the Carlsborg and Sequim area will be repaved. The posted speed limit on US 101 is 55 mph in most places. A one-mile segment near Carlsborg from Boyce Road to Taylor Cutoff Road is 45 mph. The Level of Traffic Stress for this segment is LTS 4. This is the most stressful for bicyclists and pedestrians. It accommodates only one percent of riders and the general population. In the Carlsborg area sidewalks are few and far between.

Carlsborg and Sequim on-highway transit stop locations

An aerial map of the US 101 Carlsborg and Sequim paving area highlighting the on-highway transit stop locations.

There are 10 on-highway transit stops along US 101 in the Carlsborg area. Land use changes are bringing more housing and pedestrians into the rural area. WSDOT will address access and highway crossing needs in the Carlsborg area. There are vulnerable road users present with two senior citizen housing communities, and a RV Park nearby.

Carlsborg and Sequim paving area Complete Streets options to consider

The following three Complete Streets options may be added to the Carlsborg and Sequim area paving project. These concepts are subject to modifications in the design phase.

A. Carlsborg Road intersection improvements

An aerial graphic depicting the US 101 Carlsborg Road intersection with a sidewalk and crosswalk graphic indicating the new improvements.
Complete Streets option A: Carlsborg Road intersection improvements

These improvements include a traffic signal enhancement that allows pedestrians to establish their presence in the crosswalk prior to vehicle turning movements. A fourth crosswalk leg with a sidewalk landing segment to the transit stop, ADA curb ramp upgrades, reduction in crossing distance with 11-foot travel lanes. It also adds closed circuit television video camera to enhance traffic management. The cost estimate is $1 million.

B. Mill Road intersection improvements

An aerial graphic of the US 101 and Mill Road intersection depicting a right-in right-out restricted turning movements and a signalized pedestrian crosswalk for each direction of US 101.
Complete Streets option B: Mill Road intersection improvements

At the Mill Road intersection, access to US 101 will be right-in right-out only. A two-phase pedestrian crossing signal for each direction of the US 101 traffic will be added. This provides a highway crossing opportunity for those vulnerable road users present. The Parkwood 55-and-over Senior Housing Community is located at this intersection. Pedestrians press the crossing button to activate the vehicle traffic signal. This stops vehicle traffic and allows pedestrians to cross the first half of US 10. Once in the median, pedestrians press another button to stop vehicle traffic in the other direction. Vehicle access will not be allowed in the center median. The roadway asphalt in the median’s red hatched area will be removed. The cost estimate is $1 million.

C. Taylor Cutoff Road two-lane roundabout

Aerial map with a two-lane roundabout image drawn on the map at the intersection of US 101 and Taylor Cutoff Road.
Complete Streets option C: Taylor Cutoff Road two-lane roundabout

A two-lane roundabout at the Taylor Cutoff Road/Gilbert Road intersection provides several benefits. The roundabout provides for crosswalks on all four legs. Pedestrians may choose to cross only one direction of traffic at a time. Islands between the traffic lanes provide pedestrians a safe place to wait.  This improvement also accounts for the Mill Road improvements above. WSDOT will coordinate with transit on the preferred location of the transit stops at the intersection. The cost estimate is $6 million.

Carlsborg and Sequim paving area future options to consider

The following four options to consider are a placeholder for funding the final Level of Traffic Stress Two improvements that accommodate most riders and people.

A. Future options to consider: Carlsborg Road two-lane roundabout

An aerial map image of the US 101 and Carlsborg Road intersection with a two-lane roundabout graphic drawn on top.
Future options A: Carlsborg Road two-lane roundabout

A future two-lane roundabout at Carlsborg Road features crosswalks on all four legs of the intersection. The islands between the vehicle lanes give pedestrians crossing a safe place to wait. The roundabout is expected to improve the intersection’s traffic flow as well. We will coordinate with transit on their preferred locations for the intersection transit stops. The cost estimate is $6 million.

B. Future options to consider: Mill Road two-lane roundabout

An aerial map graphic of the US 101 and Mill Road intersection with a two-lane roundabout graphic drawn on top.
Future options B: Mill Road two-lane roundabout

A future two-lane roundabout at Mill Road features crosswalks on all four legs of the intersection. The islands between the vehicle lanes give pedestrians a safe place to wait. The roundabout is expected to improve the intersection’s traffic flow as well. We will coordinate with transit on their preferred locations for the intersection transit stops. The cost estimate is $6 million.

C. Future options to consider: Carlsborg area separated shared-use path

Aerial map of US 101 from Boyce Road to Gilbert Road showing a shared-up path along the highway.
Future options C: Carlsborg area separated shared-use path

A shared-use path would provide a protected 14-foot paved path separate from the roadway. The location is on the north side of US 101 from Boyce Road to Gilbert Road. The cost estimate is $15 million.

D. Future options to consider: Sequim area separated shared-use path

An aerial map of US 101 from River Road to Simdars Road showing a shared-use path along the highway.
Future options D: Sequim area separated shared-use path

This shared-use path is protected 14-foot paved shared-use facility separate from the roadway. The location is along the north side of US 101 from River Road to the entrance of the Simdars’ Road Olympic Discovery Trailhead. The shared-use path follows US 101 and uses the major intersection ramps to avoid conflicts with vehicle traffic. The shared-use path is separated from vehicle traffic with a barrier. The cost estimate is $15 million.

Funding

This paving segment is funded through the Roadway Preservation Program. This project, along with the Port Angeles area project is estimated to cost $36 million. This cost is subject to change based on final design factors and project award.

Next Steps

  • March 2024
    Pre-design wrap-up
  • May 2024
    Project design
  • Fall 2025
    Project construction

Contacts

Yvette Liufau
Principle Multimodal Planner
Yvette.Liufau@wsdot.wa.gov

Debbie Clemen
Pre-design Lead
Debbie.Clemen@wsdot.wa.gov