Transportation Engineering

The intersection of Beavercreek Road and Henrici Road is an intersection with high volumes of traffic located southeast of the Oregon City area. The project installed a special radar detection system to detect vehicles as they approach the intersection. The detection prevents the signal from changing to another direction prematurely and placing drivers in a dilemma of deciding to go through the intersection or not, causing longer wait times. The project also added reflective material to traffic signal heads to increase visibility.

Project description

Why

To provide a safer roadway for all users and reduce wait times at the intersection.

Funding

• Project cost $50,690
• Project funded by the Community Road Fund.

Final Report, October 2022 

Traffic levels in Canby have significantly increased as population has grown in the Canby area and the greater region, including the travel time between Canby and  I-5. The county and the City of Canby studied options to reduce travel times between I-5 and Canby.

This project studied possible improvements at the intersections of Barlow Road and Arndt Road, and also Barlow Road and OR 99E. The county determined if an exception to statewide planning goals will be necessary due to farmland impacts. For each option, this project:

• Estimated benefits, costs, and traffic impacts in the area
• Identified critical traffic issues
• Analyzed how the possible tolling of I-205 would change traffic demands in the Canby to I-5 area
• Identified any farmland impacts that would require a statewide planning goal exception
• Determined which options merit further study

Why

• To improve the connection between the west central portion of Clackamas County, including Canby and Mulino, with I-5.
• Improve the attractiveness of Canby as a business location by reducing the travel time and length between Canby and I-5 to improve the attractiveness of Canby as a business location and reduce greenhouse gas generation.
• Improve the traffic flow and reduce wait times during peak traffic periods at the intersections of OR 99E/Barlow Road and Arndt Road/Barlow Road.

Schedule

• The county began the study in spring 2021 and completed it in fall 2022.

Funding

• Project cost:  $188,173
• Funding provided from the Community Road Fund

The intersection of Johnson Creek Blvd. and Bell Ave. is an intersection with high volumes of traffic located in the Milwaukie area. The project will enhance the existing traffic signal by installing a special radar detection system to reduce wait times and minimize travelers running red lights, add reflective material to traffic signal heads to increase visibility, and add signal ahead warning signs.

Why

To provide a safer roadway for all users and reduce wait times at the intersection.

Funding

• Project estimate $6,466.
• Funding is provided from the Community Road Fund.

The intersection of Bob Shumacher and Causey Road is an intersection with high volumes of traffic located east of I-205 in the Happy Valley area. The project will install a flashing yellow arrow signal and a special radar detection system to improve vehicle and pedestrian safety and reduce wait times, add reflective material to traffic signal heads to increase visibility and add signal ahead warning signs.

Why

To provide a safer roadway for all users and reduce wait times at the intersection.

Funding

• Project estimate $89,933.
• Funding is provided from the Community Road Fund.

The intersection of Johnson Creek Blvd. and Bell Ave. is an intersection with high volumes of traffic located in the Milwaukie and Happy Valley areas. The project will enhance the existing traffic signal by upgrading to newer vehicle detection (radar sensors) system to improve signal timing, upgrading all existing 8” signal heads to 12” standard size signal heads, replace older style left-turn signal heads with current standard flashing left-turn arrows with “pedestrian friendly” signal timing, add reflective material to traffic signal heads to increase visibility, and add signal ahead warning signs.

Why

To provide a safer roadway for all users and reduce wait times at the intersection.

Funding

• Project estimate $6,679.
• Funding is provided from the Community Road Fund and System Development Charges.

Welches Road is a main road without sidewalks or shoulders in the Welches area. To provide a safer roadway for all users, especially pedestrians, a project is planned between Hwy 26 and Birdie Lane. 

In 2016, the Welches community helped the county develop The Villages at Mt. Hood Pedestrian and Bikeway Implementation Plan. The plan prioritizes pedestrian and bicycle infrastructure improvements to create a connected system integrated with transit to meet the needs of residents and visitors, such as Safe Routes to School plans, enhanced Hwy 26 crossings, and identifying bicycle and pedestrian needs. The Welches Road project is identified as a high priority project within the Villages at Mt. Hood Pedestrian and Bikeway Implementation Plan.
 

Why

To provide a safer roadway for all users of the roadway, especially vehicles and bicyclists.

Schedule

Design: Nov 2024 - Fall 2025

Right of way: Spring 2025 - Fall 2026

Construction: Fall 2026 to Fall 2027

Traffic impact

No impacts to traffic at this time. Single lane closures and detours may be needed during construction.

Current activities

Project planning.

Funding

• Project estimate $3.4 million.
• Funding is provided from Community Road Funds and System Development Charges.

Other resources

• Presentation to Hoodland CPO, March 21, 2024
• Presentation to Hoodland CPO, Nov. 21, 2024

Paving the roadway and retrofitting curb ramps and traffic signals for ADA compliance  

Johnson Creek Blvd is a main road in the Milwaukie area with heavy volumes of vehicle traffic. The road will be repaved between 79th Pl and approximately 500 feet south of 45th Pl. Bell Avenue will also be repaved between Johnson Creek Blvd. and Alberta Ave. The median lane will be extended to Stanley Ave. to improve safety of left-turn movements onto Stanley Ave.

Sidewalk curb ramps and pedestrian push buttons will be checked for compliance with Americans with Disability (ADA) standards and retrofitted or replaced, as needed. 

30% design

Why

To provide a smooth traveling surface for motorists and bicyclists and to improve safety and accessibility for pedestrians. 

Schedule

• Design: March 2023 to Spring 2025
• Right of way: Summer 2023 to Winter 2024
• Construction: Spring 2025 to Summer 2026  
   

Traffic impact

Expect shoulder and lane closures and detours with delays up to 20 minutes during construction.

Current activities

Project planning and development of design concepts. 

Funding

• Project estimate $6 million.
• Funding is provided from county road funds, and HB2017 state gas tax funding.

Other resources

• Presentation to Milwaukie Lewelling Neighborhood District Association, Sept. 13, 2023

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Project description

The intersection of SE Amisigger Road and Hwy 224 (Clackamas Hwy) is an intersection with high volumes of traffic located east of Barton in a rural area, with a stop sign on SE Amisigger Road. Travelers attempting to turn east or west from SE Amisigger Road onto Hwy 224 during peak traffic periods can experience long wait times.  

As part of the project, we analyzed the intersection to determine whether to build a traffic signal or a roundabout. The evaluation determined a two-lane roundabout is less expensive and will be significantly safer.  

Why

To provide a safer environment for all travelers and reduce delays for vehicles on Amisigger Road turning onto Hwy 224.

Schedule

Design: May 2022 to Fall 2025
Right of way: March 2025 to Fall 2025 
Construction: Spring 2026 to Winter 2027

Traffic impact

Limited impacts this year with survey work and traffic data collection. Single lane closures may be needed during construction. Access to businesses and homes will be maintained during the construction.

Current activities

Design phase - 60%

We expect to receive final approval from ODOT by the end of February and to start the Right of Way phase in March. The design team anticipates bidding the project in spring 2026 with construction starting in early summer 2026 and lasting through 2027.

Funding

• Project estimate $5.4 million
• Funding is provided from Community Road Funds.

Other Resources

• Presentation to Eagle Creek-Barton CPO, July 14, 2022
• Presentation to Eagle Creek-Barton CPO, April 13, 2023
• Presentation to Eagle Creek-Barton CPO, March 14, 2024
• Presentation to Eagle Creek-Barton CPO, April 16, 2025

Project description

The Duus Road and Eagle Creek Road intersection turn lanes lack adequate sight distance in the Estacada area. This project will construct a southbound left-turn lane on Eagle Creek Road and potentially a westbound left-turn lane on Duus Road. 

Why

To improve safety and sight distance, relieve congestion and to accommodate future growth in the Estacada area.

Schedule

Design: July 2022 to Fall 2024 
Right of way: Winter 2024 to Fall 2024 
Construction: Spring 2026 to Fall 2026

Traffic impact

Expect lane closures and detours during construction.

Current activities

Design planning coordination.

Funding

• Project estimate $1.6 million.
• Funding is provided from Community Road Funds and System Development Charges.

Other Resources

• Presentation to Eagle Creek-Barton CPO, Oct. 13, 2022
• Presentation to Eagle Creek-Barton CPO, April 13, 2023
• Presentation to Eagle Creek-Barton CPO, March 14, 2024
• Presentation to Eagle Creek-Barton CPO, April 16, 2025

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The primary reason for crashes at this intersection is from failure to yield to oncoming traffic. To improve safety in this area, traffic signals will be installed at the intersection of SE 79th Place and SE Johnson Creek Blvd.

The project will also add sidewalks, and install ADA-compliant curb ramps at intersections and a raised median on Johnson Creek Blvd. from SE 79th Place to several hundred feet west to allow right-in and right-out only movements from both sides of the road.

Why

To provide a safer environment for all travelers by restricting turn options onto Johnson Creek Blvd and installing a signal for pedestrians to cross Johnson Creek Blvd.

Schedule

• Design: March 2023 to Feb. 2025
• Right of way: June 2023 to Feb. 2025
• Construction: Spring 2025 to Fall 2025
   

Traffic impact

Single lane closures and detours may be needed during construction.

Current activities

Kittleson & Associates is working on design plans for this project. A traffic study will be conducted in the area.  

Funding

• Project estimate $2.5 million
• Funding is provided from All Roads Transportation Safety (ARTS) Grant, Clackamas County Development Agency Funds, Condition of Approval Permit Funds, County Road Funds, and Community Road Funds