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Routine Maintenance
Our maintenance team provides a variety of services year-round to keep our 1,400 miles of county roads safe, reliable and easy to navigate.
2,804 shoulder miles | September–July
250 miles annually maintained
- Improves sight distance
- Speeds up snow melt
- Improves air flow and sun exposure
- Reduces vehicle damage
10,229 catch basins | January–December
- Minimizes flooding
- Protects road base
2,000 shoulder miles | October–November, April–June
40 miles annually maintained
- Maintains water flow through drainage channels
- Prevents overflow
- Controls erosion after heavy storms
- Protects road base
2,317 culverts, 4 miles of frontage pipe | January–December
- Imitates natural water flow
- Minimizes flooding
21 miles | January–December
- Supports traveler safety
- Reduces risk of vehicles running off the road
- Reduces risk of head-on crashes
1,200 miles of yellow striping and 900 miles of white striping | July–October
- Increased visibility, especially at night
- Provides clear boundaries for all road users
- Protects turning traffic and reduces crashes
2,845 lane miles | March–October
- Prevents sinkholes
- Maintains integrity of road base
2,845 lane miles | January–December
- Reduces road deterioration
- Reduces vehicle damage
- Protects road base
2,804 shoulder miles | September–July 1
- Improves visibility
- Improves access to shoulders and ditches for maintenance
- Reduces chance of fire from vehicles on the side of the road or dragging chains
2,804 paved shoulder miles, 2,359 gravel shoulder miles | October–November, February–May
- Reduces abrupt edges
- Provides area outside travel lane to maneuver
- Protects structural integrity of road edge
2,381 manholes, 230 dry wells | January–December
- Drains surface water
- Filters water before entering larger drainage system
69,808 signs at 16,543 locations | January–December
- Controls traffic and provides safety for all road users
- Provides directions, caution and regulation information
- Evolves with road system to improve safety and efficiency
165 traffic signals | January–December
- Controls traffic and provides safety for all road users
- Adjusts signals in real-time based on traffic flow
- Reduces congestion and maintains traffic flow
564 lane miles | January–December
- Allows for drainage of storm water
- Reduces pollution, reduces drainage maintenance
- Improves safety, health and water quality
Project description: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
Updated: 8-22-2023
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Current activities:
- All major work to repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Funding:
- County Road Fund
You may be interested to know:
- The bridge is a critical life lilifelinene for residents, as this is the sole access to several homes
- Planned repair measures are the minimum necessary to assure protection of the western bridge abutment, road embankment, and overall stability of the bridge, Bonney Road and State Highway 211
Project description: Replace the existing bridge with an open bottom, fish-friendly bridge in the same location. Includes stream channel grading, creating a vegetated swale for stormwater treatment, and installing in-stream logs, boulders and woody debris for fish habitat.
Updated: 4-1-2025
Status updates:
- Road work is complete. Planting scheduled for spring 2025.
- Next steps: Project monitoring. Expect to see staff visiting regularly.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Funding:
- $350,000 in grant funding received through the Oregon Watershed Enhancement Board
- Project will be supplemented by county road funds
Project description: Stabilize the low-flow channel in Woodcock Creek upstream of Wright Road, stabilize the high-flow spillway and the Wright Road Bridge structure, and reduce flood risk on Woodcock Creek upstream and downstream of Wright Road. The “Dave Phillips Bridge” is experiencing erosion around the high-flow spillway and on both bridge abutments. The project includes installing temporary access roads, installing erosion countermeasures, introducing logs for habitat enhancement, grading the historic and high-flow channels, and installing riparian area plantings.
Updated: 11-24-20
Status: Project has been cancelled due to significant cost increases associated with regulatory requirements. The bridge and roadway are stable.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
32806422nd Avenue Bridge over Cedar Creek | Sandy, OR
- What: Reset retaining wall blocks on the SE corner of the bridge along Firwood Creek.
- Why: To prevent erosion and to stabilize wall blocks and road fill.
Boardman Creek over Boardman Ave | Jennings Lodge, OR
- What: Install a concrete footing and headwall, add boulders, rebuild a section of roadway, add native plants, and remove accumulated sediment and debris from Boardman Creek.
- Why: To prevent future undermining and erosion, improve habitat, and to minimize flooding along Boardman Creek.
Casto Road Bridge over unnamed stream | Oregon City, OR
- What: Remove remnants of an abandoned beaver dam on the upstream side of the bridge.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Clackamas River Drive (culvert) over unnamed stream | Clackamas area, OR
- What: Extend and repair a retaining wall on a concrete culvert which carries an unnamed tributary of the Clackamas River under Clackamas River Drive.
- Why: During a storm event this past winter, a large tree fell and landed on the retaining wall on the culvert, damaging it significantly.
Creamery Creek (Hwy 170) Drainage Improvements
- What: Excavate and remove sediment and invasive species from the west (downstream) side of the bridge. Creamery Creek flows under Hwy 170 approximately 900’ north of S Heinz Road.
- Why: To assist with drainage and to keep the stream channel centered under the bridge, and to maintain a critical life line for area residents.
Folsom Road Bridge over unnamed, seasonal stream | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Heiple Road Bridge over Currin Creek | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Milk Creek (Bonney Road) Bridge Repair
- What: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
- Why: To repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Milk Creek over Winslow Road | Colton, OR
- What: Raise Winslow Road Bridge to replace beam. During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
- Why: During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
Still Creek
- What: Repair erosion and undermining on the eastern bridge footing and protect from future erosion. Includes creating a temporary access road and installing precast concrete panels and boulders along the affected bridge abutment and road embankment.
- Why: To preserve and protect the Still Creek Bridge.
Tickle Creek Road Bridge over Tickle Creek | Boring, OR
- What: Repair erosion along the southern bridge footing, install erosion countermeasures, channel-grading, embankment protection, habitat enhancement and install native trees and shrubs.
- Why: To preserve and protect the bridge and embankment, and improve habitat for fish and wildlife.
A chip seal is a coating of liquid asphalt and rock chips applied to the existing roadway to extend the life of the pavement. There are four steps in the chip sealing process – applying an oil patch to the most degraded areas, putting down the chip seal, sweeping up excess rock chips and fog sealing (applying a thin coat of asphalt on top of the chip seal).
30991Though your street is in basically sound condition, it needs routine maintenance to protect it. Chip sealing, which is effective for 7-10 years, stops water from seeping through the surface and damaging the pavement and road base. It costs less to apply chip seal to the street surface than to fix the street base if it is damaged.
30991Once oil patches are applied, they are allowed to cure for one-two weeks before the chip seal is added. The sweeping and fog sealing are done as soon as possible after the chip seal, usually within 1-2 days based upon weather and the availability of work crews. While the surface can be driven or walked on at any stage, after the process is complete it takes about two weeks before the chip seal is firmly set.
30991If it is raining or if rain is in the forecast, we will assign our crews to other work for the day. Chip seal must go on a dry surface. That is also why we ask that you make sure any sprinklers are turned off beginning at midnight the night before the chip seal work is scheduled.
30991You will receive a notice at your door a few days ahead of time. If it does rain, work may be delayed.
30991Please move your car off the street from the time the chip sealing begins to the completion of the fog sealing process – a period of approximately 2-3 days. You will always be able to drive through the area, but the entire street surface must be available for the work crews. Please also let family, friends and delivery people know not to park their vehicle on the street during that time period. If a vehicle is left on the street, we try to find the owner, but delays cost tax money. Therefore, cars not moved by the time the work begins will be towed at the owner's expense. If your car is towed, contact the Sheriff's Office, 503-655-8441.
30991Bridge Maintenance
Our 186 bridges are inspected every 2 years and through those inspections we sometimes find repair and maintenance work that needs to be done to preserve the bridge structure and keep it safe for travelers. That work often includes bridge scour projects, either removing excess soil from stream channels or replacing soil around foundations that has been washed away during high water events.
2,804 shoulder miles | September–July
250 miles annually maintained
- Improves sight distance
- Speeds up snow melt
- Improves air flow and sun exposure
- Reduces vehicle damage
10,229 catch basins | January–December
- Minimizes flooding
- Protects road base
2,000 shoulder miles | October–November, April–June
40 miles annually maintained
- Maintains water flow through drainage channels
- Prevents overflow
- Controls erosion after heavy storms
- Protects road base
2,317 culverts, 4 miles of frontage pipe | January–December
- Imitates natural water flow
- Minimizes flooding
21 miles | January–December
- Supports traveler safety
- Reduces risk of vehicles running off the road
- Reduces risk of head-on crashes
1,200 miles of yellow striping and 900 miles of white striping | July–October
- Increased visibility, especially at night
- Provides clear boundaries for all road users
- Protects turning traffic and reduces crashes
2,845 lane miles | March–October
- Prevents sinkholes
- Maintains integrity of road base
2,845 lane miles | January–December
- Reduces road deterioration
- Reduces vehicle damage
- Protects road base
2,804 shoulder miles | September–July 1
- Improves visibility
- Improves access to shoulders and ditches for maintenance
- Reduces chance of fire from vehicles on the side of the road or dragging chains
2,804 paved shoulder miles, 2,359 gravel shoulder miles | October–November, February–May
- Reduces abrupt edges
- Provides area outside travel lane to maneuver
- Protects structural integrity of road edge
2,381 manholes, 230 dry wells | January–December
- Drains surface water
- Filters water before entering larger drainage system
69,808 signs at 16,543 locations | January–December
- Controls traffic and provides safety for all road users
- Provides directions, caution and regulation information
- Evolves with road system to improve safety and efficiency
165 traffic signals | January–December
- Controls traffic and provides safety for all road users
- Adjusts signals in real-time based on traffic flow
- Reduces congestion and maintains traffic flow
564 lane miles | January–December
- Allows for drainage of storm water
- Reduces pollution, reduces drainage maintenance
- Improves safety, health and water quality
Project description: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
Updated: 8-22-2023
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Current activities:
- All major work to repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Funding:
- County Road Fund
You may be interested to know:
- The bridge is a critical life lilifelinene for residents, as this is the sole access to several homes
- Planned repair measures are the minimum necessary to assure protection of the western bridge abutment, road embankment, and overall stability of the bridge, Bonney Road and State Highway 211
Project description: Replace the existing bridge with an open bottom, fish-friendly bridge in the same location. Includes stream channel grading, creating a vegetated swale for stormwater treatment, and installing in-stream logs, boulders and woody debris for fish habitat.
Updated: 4-1-2025
Status updates:
- Road work is complete. Planting scheduled for spring 2025.
- Next steps: Project monitoring. Expect to see staff visiting regularly.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Funding:
- $350,000 in grant funding received through the Oregon Watershed Enhancement Board
- Project will be supplemented by county road funds
Project description: Stabilize the low-flow channel in Woodcock Creek upstream of Wright Road, stabilize the high-flow spillway and the Wright Road Bridge structure, and reduce flood risk on Woodcock Creek upstream and downstream of Wright Road. The “Dave Phillips Bridge” is experiencing erosion around the high-flow spillway and on both bridge abutments. The project includes installing temporary access roads, installing erosion countermeasures, introducing logs for habitat enhancement, grading the historic and high-flow channels, and installing riparian area plantings.
Updated: 11-24-20
Status: Project has been cancelled due to significant cost increases associated with regulatory requirements. The bridge and roadway are stable.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
32806422nd Avenue Bridge over Cedar Creek | Sandy, OR
- What: Reset retaining wall blocks on the SE corner of the bridge along Firwood Creek.
- Why: To prevent erosion and to stabilize wall blocks and road fill.
Boardman Creek over Boardman Ave | Jennings Lodge, OR
- What: Install a concrete footing and headwall, add boulders, rebuild a section of roadway, add native plants, and remove accumulated sediment and debris from Boardman Creek.
- Why: To prevent future undermining and erosion, improve habitat, and to minimize flooding along Boardman Creek.
Casto Road Bridge over unnamed stream | Oregon City, OR
- What: Remove remnants of an abandoned beaver dam on the upstream side of the bridge.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Clackamas River Drive (culvert) over unnamed stream | Clackamas area, OR
- What: Extend and repair a retaining wall on a concrete culvert which carries an unnamed tributary of the Clackamas River under Clackamas River Drive.
- Why: During a storm event this past winter, a large tree fell and landed on the retaining wall on the culvert, damaging it significantly.
Creamery Creek (Hwy 170) Drainage Improvements
- What: Excavate and remove sediment and invasive species from the west (downstream) side of the bridge. Creamery Creek flows under Hwy 170 approximately 900’ north of S Heinz Road.
- Why: To assist with drainage and to keep the stream channel centered under the bridge, and to maintain a critical life line for area residents.
Folsom Road Bridge over unnamed, seasonal stream | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Heiple Road Bridge over Currin Creek | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Milk Creek (Bonney Road) Bridge Repair
- What: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
- Why: To repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Milk Creek over Winslow Road | Colton, OR
- What: Raise Winslow Road Bridge to replace beam. During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
- Why: During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
Still Creek
- What: Repair erosion and undermining on the eastern bridge footing and protect from future erosion. Includes creating a temporary access road and installing precast concrete panels and boulders along the affected bridge abutment and road embankment.
- Why: To preserve and protect the Still Creek Bridge.
Tickle Creek Road Bridge over Tickle Creek | Boring, OR
- What: Repair erosion along the southern bridge footing, install erosion countermeasures, channel-grading, embankment protection, habitat enhancement and install native trees and shrubs.
- Why: To preserve and protect the bridge and embankment, and improve habitat for fish and wildlife.
A chip seal is a coating of liquid asphalt and rock chips applied to the existing roadway to extend the life of the pavement. There are four steps in the chip sealing process – applying an oil patch to the most degraded areas, putting down the chip seal, sweeping up excess rock chips and fog sealing (applying a thin coat of asphalt on top of the chip seal).
30991Though your street is in basically sound condition, it needs routine maintenance to protect it. Chip sealing, which is effective for 7-10 years, stops water from seeping through the surface and damaging the pavement and road base. It costs less to apply chip seal to the street surface than to fix the street base if it is damaged.
30991Once oil patches are applied, they are allowed to cure for one-two weeks before the chip seal is added. The sweeping and fog sealing are done as soon as possible after the chip seal, usually within 1-2 days based upon weather and the availability of work crews. While the surface can be driven or walked on at any stage, after the process is complete it takes about two weeks before the chip seal is firmly set.
30991If it is raining or if rain is in the forecast, we will assign our crews to other work for the day. Chip seal must go on a dry surface. That is also why we ask that you make sure any sprinklers are turned off beginning at midnight the night before the chip seal work is scheduled.
30991You will receive a notice at your door a few days ahead of time. If it does rain, work may be delayed.
30991Please move your car off the street from the time the chip sealing begins to the completion of the fog sealing process – a period of approximately 2-3 days. You will always be able to drive through the area, but the entire street surface must be available for the work crews. Please also let family, friends and delivery people know not to park their vehicle on the street during that time period. If a vehicle is left on the street, we try to find the owner, but delays cost tax money. Therefore, cars not moved by the time the work begins will be towed at the owner's expense. If your car is towed, contact the Sheriff's Office, 503-655-8441.
30991Pavement Rehabilitation
Pavement rehabilitation includes treatments that extend the life of an existing road surface such as surface sealants, patching short spans of roadway and asphalt paving. These proactive measures add structure to the road, remedy pavement distresses, and maintain a road's condition to defer full reconstruction further in the future. See schedule for next five years.
Scheduled pavement rehabilitation projects in unincorporated Clackamas County (schedule could change):
2024 paving projects
Canby area: 2 miles (lane striping early Sept.)
- Haines Road: Hwy 99E to Mulino Road
- Territorial Road: Haines Road to Hwy 99E
Milwaukie Area: 1 mile (work starts mid-Sept.)
- Overland St: Bell Ave to 82nd Ave
Redland area: 2 miles (work starts Monday, Sept. 16; will start with Fishers Mill Road)
- Fischers Mill Road: Fischers Mill Bridge to Springwater Road
- Harding Road: Springwater Road to Fischers Mill Road
- Strowbridge Road: Springwater Road to Fischers Mill Road
Our crews will also repair short spans of roadway throughout the county, including:
- digging out and repaving rough pavement
- sealing cracks
- repairing slides
2,804 shoulder miles | September–July
250 miles annually maintained
- Improves sight distance
- Speeds up snow melt
- Improves air flow and sun exposure
- Reduces vehicle damage
10,229 catch basins | January–December
- Minimizes flooding
- Protects road base
2,000 shoulder miles | October–November, April–June
40 miles annually maintained
- Maintains water flow through drainage channels
- Prevents overflow
- Controls erosion after heavy storms
- Protects road base
2,317 culverts, 4 miles of frontage pipe | January–December
- Imitates natural water flow
- Minimizes flooding
21 miles | January–December
- Supports traveler safety
- Reduces risk of vehicles running off the road
- Reduces risk of head-on crashes
1,200 miles of yellow striping and 900 miles of white striping | July–October
- Increased visibility, especially at night
- Provides clear boundaries for all road users
- Protects turning traffic and reduces crashes
2,845 lane miles | March–October
- Prevents sinkholes
- Maintains integrity of road base
2,845 lane miles | January–December
- Reduces road deterioration
- Reduces vehicle damage
- Protects road base
2,804 shoulder miles | September–July 1
- Improves visibility
- Improves access to shoulders and ditches for maintenance
- Reduces chance of fire from vehicles on the side of the road or dragging chains
2,804 paved shoulder miles, 2,359 gravel shoulder miles | October–November, February–May
- Reduces abrupt edges
- Provides area outside travel lane to maneuver
- Protects structural integrity of road edge
2,381 manholes, 230 dry wells | January–December
- Drains surface water
- Filters water before entering larger drainage system
69,808 signs at 16,543 locations | January–December
- Controls traffic and provides safety for all road users
- Provides directions, caution and regulation information
- Evolves with road system to improve safety and efficiency
165 traffic signals | January–December
- Controls traffic and provides safety for all road users
- Adjusts signals in real-time based on traffic flow
- Reduces congestion and maintains traffic flow
564 lane miles | January–December
- Allows for drainage of storm water
- Reduces pollution, reduces drainage maintenance
- Improves safety, health and water quality
Project description: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
Updated: 8-22-2023
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Current activities:
- All major work to repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Funding:
- County Road Fund
You may be interested to know:
- The bridge is a critical life lilifelinene for residents, as this is the sole access to several homes
- Planned repair measures are the minimum necessary to assure protection of the western bridge abutment, road embankment, and overall stability of the bridge, Bonney Road and State Highway 211
Project description: Replace the existing bridge with an open bottom, fish-friendly bridge in the same location. Includes stream channel grading, creating a vegetated swale for stormwater treatment, and installing in-stream logs, boulders and woody debris for fish habitat.
Updated: 4-1-2025
Status updates:
- Road work is complete. Planting scheduled for spring 2025.
- Next steps: Project monitoring. Expect to see staff visiting regularly.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Funding:
- $350,000 in grant funding received through the Oregon Watershed Enhancement Board
- Project will be supplemented by county road funds
Project description: Stabilize the low-flow channel in Woodcock Creek upstream of Wright Road, stabilize the high-flow spillway and the Wright Road Bridge structure, and reduce flood risk on Woodcock Creek upstream and downstream of Wright Road. The “Dave Phillips Bridge” is experiencing erosion around the high-flow spillway and on both bridge abutments. The project includes installing temporary access roads, installing erosion countermeasures, introducing logs for habitat enhancement, grading the historic and high-flow channels, and installing riparian area plantings.
Updated: 11-24-20
Status: Project has been cancelled due to significant cost increases associated with regulatory requirements. The bridge and roadway are stable.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
32806422nd Avenue Bridge over Cedar Creek | Sandy, OR
- What: Reset retaining wall blocks on the SE corner of the bridge along Firwood Creek.
- Why: To prevent erosion and to stabilize wall blocks and road fill.
Boardman Creek over Boardman Ave | Jennings Lodge, OR
- What: Install a concrete footing and headwall, add boulders, rebuild a section of roadway, add native plants, and remove accumulated sediment and debris from Boardman Creek.
- Why: To prevent future undermining and erosion, improve habitat, and to minimize flooding along Boardman Creek.
Casto Road Bridge over unnamed stream | Oregon City, OR
- What: Remove remnants of an abandoned beaver dam on the upstream side of the bridge.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Clackamas River Drive (culvert) over unnamed stream | Clackamas area, OR
- What: Extend and repair a retaining wall on a concrete culvert which carries an unnamed tributary of the Clackamas River under Clackamas River Drive.
- Why: During a storm event this past winter, a large tree fell and landed on the retaining wall on the culvert, damaging it significantly.
Creamery Creek (Hwy 170) Drainage Improvements
- What: Excavate and remove sediment and invasive species from the west (downstream) side of the bridge. Creamery Creek flows under Hwy 170 approximately 900’ north of S Heinz Road.
- Why: To assist with drainage and to keep the stream channel centered under the bridge, and to maintain a critical life line for area residents.
Folsom Road Bridge over unnamed, seasonal stream | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Heiple Road Bridge over Currin Creek | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Milk Creek (Bonney Road) Bridge Repair
- What: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
- Why: To repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Milk Creek over Winslow Road | Colton, OR
- What: Raise Winslow Road Bridge to replace beam. During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
- Why: During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
Still Creek
- What: Repair erosion and undermining on the eastern bridge footing and protect from future erosion. Includes creating a temporary access road and installing precast concrete panels and boulders along the affected bridge abutment and road embankment.
- Why: To preserve and protect the Still Creek Bridge.
Tickle Creek Road Bridge over Tickle Creek | Boring, OR
- What: Repair erosion along the southern bridge footing, install erosion countermeasures, channel-grading, embankment protection, habitat enhancement and install native trees and shrubs.
- Why: To preserve and protect the bridge and embankment, and improve habitat for fish and wildlife.
A chip seal is a coating of liquid asphalt and rock chips applied to the existing roadway to extend the life of the pavement. There are four steps in the chip sealing process – applying an oil patch to the most degraded areas, putting down the chip seal, sweeping up excess rock chips and fog sealing (applying a thin coat of asphalt on top of the chip seal).
30991Though your street is in basically sound condition, it needs routine maintenance to protect it. Chip sealing, which is effective for 7-10 years, stops water from seeping through the surface and damaging the pavement and road base. It costs less to apply chip seal to the street surface than to fix the street base if it is damaged.
30991Once oil patches are applied, they are allowed to cure for one-two weeks before the chip seal is added. The sweeping and fog sealing are done as soon as possible after the chip seal, usually within 1-2 days based upon weather and the availability of work crews. While the surface can be driven or walked on at any stage, after the process is complete it takes about two weeks before the chip seal is firmly set.
30991If it is raining or if rain is in the forecast, we will assign our crews to other work for the day. Chip seal must go on a dry surface. That is also why we ask that you make sure any sprinklers are turned off beginning at midnight the night before the chip seal work is scheduled.
30991You will receive a notice at your door a few days ahead of time. If it does rain, work may be delayed.
30991Please move your car off the street from the time the chip sealing begins to the completion of the fog sealing process – a period of approximately 2-3 days. You will always be able to drive through the area, but the entire street surface must be available for the work crews. Please also let family, friends and delivery people know not to park their vehicle on the street during that time period. If a vehicle is left on the street, we try to find the owner, but delays cost tax money. Therefore, cars not moved by the time the work begins will be towed at the owner's expense. If your car is towed, contact the Sheriff's Office, 503-655-8441.
30991Paving Projects Planned Five Years in Advance
Learn more about our 5-year pavement management plan.
Pavement Preservation
To extend the life of a road, surface treatments are applied the existing roadways throughout the county including slurry seal and chip seal. A slurry seal is a coating of liquid asphalt; a chip seal is a coating of liquid asphalt and rock chips. See schedule for next five years.
Scheduled pavement preservation projects in unincorporated Clackamas County (timing could change):
2024 curb ramp and cape seal project
Timeline: Expect crews to work Monday – Friday between 7 a.m. and 6 p.m. for two weeks starting in September.
Traffic impact: We plan to keep all roads open to local traffic, but there may be lane closures and occasional traffic delays of up to 20 minutes at a time. Flaggers will direct all travelers during construction hours if necessary. Local detours may be needed.
Vegetation note: If you live within one of the road segments set to be sealed, please trim your bushes and trees within one foot of the curb nearest your property.
Lake Oswego/Southwood Park area: 2 miles
Constructing ADA-compliant curb ramps at:
- 61st Ave/Southwood Dr intersection
- 62nd Ave/63rd Ave intersection
- 62nd Ave/Southwood Dr intersection
- 63rd Ave and 63rd Place intersection
- 63rd Ave and Douglas Dr intersection
- 63rd Ave and Southwood Dr intersection
- 63rd Ave from 64th Ave intersection
- 64th Ave near 13179/13190
This project will also place 2 miles of cape seal on the following urban roads in the Southwood Park area:
- 61st Ave: 62nd Ave to Southwood Dr
- 61st Ave: 61st Ave to dead end
- 61st Ave: 62nd Ave to Pamela St
- 62nd Ave 63rd Ave to Pamela St
- 63rd Pl: 62nd Ave to Southwood Dr
- 63rd Pl: 63rd Ave to dead end
- 64th Ave: Douglas Dr to 63rd Ave
- 64th Ave: Pamela St to Southwood Dr
- Douglas Dr: 63rd Ave to 64th Ave
- Pamela St: 61st Ave to 61st Ave
- Southwood Dr: 64th Ave to 61st Ave
2024 slurry seal project
Timeline: Expect crews to work Monday – Friday between 7 a.m. and 6 p.m. for 2-3 weeks between July and mid-September. Watch for
signs to be posted approximately 2 weeks before work begins.
Traffic impact: All roads will remain open, but expect lane closures and traffic delays up to 20 minutes. Flaggers will direct all travelers.
Vegetation note: If you live within one of the road segments set to be sealed, please trim your bushes and trees within one foot of the curb nearest your property.
Jennings Lodge area slurry seal map
Jennings Lodge area: 6 miles
This project will place slurry seal on 6 miles of the following urban roads:
- Abernethy Lane: Highway 99E @ guardrail to Glen Echo Ave
- Addie St: Boardman Ave to Glen Echo Ave
- Babbler St: Jennings Ave to dead end
- Blanton St: Boardman Ave to 18687 Blanton St
- Britton Ave: River Road to Kay St
- Cottonwood St: dead end to 4277 Cottonwood St
- Gill St: Abernethy Lane to Woodcock Ave
- Glen Echo Ave: River Road to 4400 Glen Echo Ave
- Hull Ave: Highway 99E to Portland Ave
- Hull Ave: Highway 99E to River Road
- Jennings Ave: River Road to Willamette Dr
- Jewett Dr: Jennings Ave to dead end
- Kay St: Glen Echo Ave to Rinearson Road
- La Cour Ct: Glen Echo Ave to dead end
- Marcia Court: Glen Echo Ave to dead end
- Meldrum Ave: Abernethy Lane to Cottonwood St
- Meyers Ave: Addie St to Abernethy Lane
- Mildred St: Highway 99 to Glen Echo Ave
- Old Orchard Court: Glen Echo Ave to dead end
- Portland Ave: Hull Ave to Caldwell Ave
- Rinearson Road: River Road to 5051 Rinearson Road
- River Dr: River Road to dead end
- River Drive Ct: River Dr to 19304 River Drive Ct
2024 chip seal project
Timeline: Expect crews to work Monday – Friday between 7 a.m. and 6 p.m. for 2-3 weeks between July and mid-September. Watch for signs to be posted approximately 2 weeks before work begins.
Traffic impact: All roads will remain open, but expect lane closures and traffic delays up to 20 minutes. Flaggers will direct all travelers.
Vegetation note: If you live within one of the road segments set to be sealed, please trim your bushes and trees within one foot of the curb nearest your property.
Redland area: 46 miles
This project will place 46 miles of chip seal on the following rural roads:
- Archer Dr: Outlook Dr to culdesac
- Arnett Dr: Fischers Mill Road to culdesac
- Arrowhead Dr: Archer Dr to 16403 Arrowhead Dr
- Badger Dr: Polehn Dr to Indigo Road
- Bogynski Road: Henrici Road to 18011 Bogynski Road
- Bradley Road: Redland Road to 14950 Bradley Road
- Cadle Road: Glisan Road to 18405 Cadle Road
- Canter Ln: Redland Road to 17640 Canter Ln
- Carlson Road: Forsythe Road to 17420 Carlson Road
- Clear Acres Dr: Hattan Road to Gunzer Dr
- Cliffview Road: Forsythe Road to Victory Road
- Creek Road: Henrici Road to 19416 Creek Road
- Criswell Road: Springwater Road to 20195 Criswell Road
- Curtis Court: Forsythe Road to culdesac
- Danny Court: Henrici Road to culdesac
- Deininger Road: Fischers Mill Road to 17620 Deininger Road
- Dick Dr: Dick Dr to 17601 Dick Dr
- Dick Dr: Hattan Road to 17921 Dick Dr
- Dillman Road: Henrici Road to 18400 Dillman Road
- Edgewood Ln: Edgewood St to culdesac
- Edgewood St: Hattan Road to culdesac
- Elida Road: Redland Road to Glisan Road
- Fawn Dr: Archer Dr to culdesac
- Fieldstone Ln: Redland Road to dead end (MP 062)
- Fischers Mill Road: Redland Road to Strowbridge Road
- Forest Hill Dr: Sprague Road to Pear Road
- Forsythe Road: Bradley Road to Cliffview Road
- Glisian Road: Elida Road to Norman Road
- Grasle Road: Redland to North End Road
- Hattan Road: Springwater Road to Fischers Mills Road
- Henrici Road: Beavercreek Road to Redland Road
- Hilltop Road: Bradley Road to 15987 Hilltop Road
- Hinkle Road: 18845 Hinkle Road to Redland Road
- Holcomb Blvd: Edenwild Ln to Bradley Road
- Jasan Dr: Henrici Road to dead end
- Jean Dr: Fieldstone Ln to dead end (MP 019)
- Kimball Road: Fischers Mill Road to 18820 Kimball Road
- Lucky Ln: Dick Dr to culdesac
- McCubbin Road: 23029 McCubbin Road to 23139 McCubbin Road
- McCubbin Road: Springwater Road to 17225 McCubbin Road
- Meadow Ave: Henrici Road to dead end
- Morel Dr: Pam Dr to 15401 Morel Dr
- Norman Road: Redland Road to culdesac
- North End Road: Grasle Road to Terry Michael Dr
- Outlook Road: Bradley Road to 16696 Outlook Road
- Outlook Road: Bradley Road to Sky Ranch Ln
- Overlook Road: Forsythe Road to Hoffman Road
- Pam Dr: Holcomb Road to culdesac
- Pear Road: Polehn Dr to Forest Hill Dr
- Polehn Dr: Redland Road to Badger Dr
- Potter Road: Redland Road to Bradley Road
- Redland Road: Ridge Road to Abernethy Road
- Redland School Road: Hattan Road to gate at MP 040
- Ridge Road: Fischers Mill Road to Redland Road
- Sky Ranch Ln: Outlook Road to 15406 Sky Ranch Ln
- Stoltz Road: Holcomb Blvd to 16170 Stoltz Road
- Sunset Ave: Babbler St to Blanton St
- Terry Michael Dr: North End Road to 18538 Terry Michael Dr
- Trail Ridge Road: Bradley Road to culdesac
- Victory Road: Cliffview Road to Forsythe Road
- Wachtman Road: Bradley Road to 16829 Wachtman Road
- Wildflower Ln: Pam Dr to culdesac
- Wilmot St: Jennings Ave to dead end
Chip Seal FAQ
2,804 shoulder miles | September–July
250 miles annually maintained
- Improves sight distance
- Speeds up snow melt
- Improves air flow and sun exposure
- Reduces vehicle damage
10,229 catch basins | January–December
- Minimizes flooding
- Protects road base
2,000 shoulder miles | October–November, April–June
40 miles annually maintained
- Maintains water flow through drainage channels
- Prevents overflow
- Controls erosion after heavy storms
- Protects road base
2,317 culverts, 4 miles of frontage pipe | January–December
- Imitates natural water flow
- Minimizes flooding
21 miles | January–December
- Supports traveler safety
- Reduces risk of vehicles running off the road
- Reduces risk of head-on crashes
1,200 miles of yellow striping and 900 miles of white striping | July–October
- Increased visibility, especially at night
- Provides clear boundaries for all road users
- Protects turning traffic and reduces crashes
2,845 lane miles | March–October
- Prevents sinkholes
- Maintains integrity of road base
2,845 lane miles | January–December
- Reduces road deterioration
- Reduces vehicle damage
- Protects road base
2,804 shoulder miles | September–July 1
- Improves visibility
- Improves access to shoulders and ditches for maintenance
- Reduces chance of fire from vehicles on the side of the road or dragging chains
2,804 paved shoulder miles, 2,359 gravel shoulder miles | October–November, February–May
- Reduces abrupt edges
- Provides area outside travel lane to maneuver
- Protects structural integrity of road edge
2,381 manholes, 230 dry wells | January–December
- Drains surface water
- Filters water before entering larger drainage system
69,808 signs at 16,543 locations | January–December
- Controls traffic and provides safety for all road users
- Provides directions, caution and regulation information
- Evolves with road system to improve safety and efficiency
165 traffic signals | January–December
- Controls traffic and provides safety for all road users
- Adjusts signals in real-time based on traffic flow
- Reduces congestion and maintains traffic flow
564 lane miles | January–December
- Allows for drainage of storm water
- Reduces pollution, reduces drainage maintenance
- Improves safety, health and water quality
Project description: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
Updated: 8-22-2023
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Current activities:
- All major work to repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Funding:
- County Road Fund
You may be interested to know:
- The bridge is a critical life lilifelinene for residents, as this is the sole access to several homes
- Planned repair measures are the minimum necessary to assure protection of the western bridge abutment, road embankment, and overall stability of the bridge, Bonney Road and State Highway 211
Project description: Replace the existing bridge with an open bottom, fish-friendly bridge in the same location. Includes stream channel grading, creating a vegetated swale for stormwater treatment, and installing in-stream logs, boulders and woody debris for fish habitat.
Updated: 4-1-2025
Status updates:
- Road work is complete. Planting scheduled for spring 2025.
- Next steps: Project monitoring. Expect to see staff visiting regularly.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
Funding:
- $350,000 in grant funding received through the Oregon Watershed Enhancement Board
- Project will be supplemented by county road funds
Project description: Stabilize the low-flow channel in Woodcock Creek upstream of Wright Road, stabilize the high-flow spillway and the Wright Road Bridge structure, and reduce flood risk on Woodcock Creek upstream and downstream of Wright Road. The “Dave Phillips Bridge” is experiencing erosion around the high-flow spillway and on both bridge abutments. The project includes installing temporary access roads, installing erosion countermeasures, introducing logs for habitat enhancement, grading the historic and high-flow channels, and installing riparian area plantings.
Updated: 11-24-20
Status: Project has been cancelled due to significant cost increases associated with regulatory requirements. The bridge and roadway are stable.
Contact: Devin Patterson, Project Manager, devinpat@clackamas.us or 503-742-4666
32806422nd Avenue Bridge over Cedar Creek | Sandy, OR
- What: Reset retaining wall blocks on the SE corner of the bridge along Firwood Creek.
- Why: To prevent erosion and to stabilize wall blocks and road fill.
Boardman Creek over Boardman Ave | Jennings Lodge, OR
- What: Install a concrete footing and headwall, add boulders, rebuild a section of roadway, add native plants, and remove accumulated sediment and debris from Boardman Creek.
- Why: To prevent future undermining and erosion, improve habitat, and to minimize flooding along Boardman Creek.
Casto Road Bridge over unnamed stream | Oregon City, OR
- What: Remove remnants of an abandoned beaver dam on the upstream side of the bridge.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Clackamas River Drive (culvert) over unnamed stream | Clackamas area, OR
- What: Extend and repair a retaining wall on a concrete culvert which carries an unnamed tributary of the Clackamas River under Clackamas River Drive.
- Why: During a storm event this past winter, a large tree fell and landed on the retaining wall on the culvert, damaging it significantly.
Creamery Creek (Hwy 170) Drainage Improvements
- What: Excavate and remove sediment and invasive species from the west (downstream) side of the bridge. Creamery Creek flows under Hwy 170 approximately 900’ north of S Heinz Road.
- Why: To assist with drainage and to keep the stream channel centered under the bridge, and to maintain a critical life line for area residents.
Folsom Road Bridge over unnamed, seasonal stream | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Heiple Road Bridge over Currin Creek | Eagle Creek, OR
- What: Excavate accumulated sediment and invasive species from the stream channel.
- Why: To assist with drainage and to keep the stream channel centered under the bridge.
Milk Creek (Bonney Road) Bridge Repair
- What: Repair erosion on the western bridge footing and road embankment along Highway 211. Includes installing large wood and boulders, stream channel grading and native plants.
- Why: To repair erosion and stabilize the Milk Creek Bridge and road embankment along Highway 211 is complete. We’ll come back to plant and seed this fall so the vegetation has the best chance to survive being transplanted.
Milk Creek over Winslow Road | Colton, OR
- What: Raise Winslow Road Bridge to replace beam. During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
- Why: During a routine Oregon Department of Transportation inspection, it was discovered that an exterior beam on the bridge has decayed and needs to be replaced.
Still Creek
- What: Repair erosion and undermining on the eastern bridge footing and protect from future erosion. Includes creating a temporary access road and installing precast concrete panels and boulders along the affected bridge abutment and road embankment.
- Why: To preserve and protect the Still Creek Bridge.
Tickle Creek Road Bridge over Tickle Creek | Boring, OR
- What: Repair erosion along the southern bridge footing, install erosion countermeasures, channel-grading, embankment protection, habitat enhancement and install native trees and shrubs.
- Why: To preserve and protect the bridge and embankment, and improve habitat for fish and wildlife.
A chip seal is a coating of liquid asphalt and rock chips applied to the existing roadway to extend the life of the pavement. There are four steps in the chip sealing process – applying an oil patch to the most degraded areas, putting down the chip seal, sweeping up excess rock chips and fog sealing (applying a thin coat of asphalt on top of the chip seal).
30991Though your street is in basically sound condition, it needs routine maintenance to protect it. Chip sealing, which is effective for 7-10 years, stops water from seeping through the surface and damaging the pavement and road base. It costs less to apply chip seal to the street surface than to fix the street base if it is damaged.
30991Once oil patches are applied, they are allowed to cure for one-two weeks before the chip seal is added. The sweeping and fog sealing are done as soon as possible after the chip seal, usually within 1-2 days based upon weather and the availability of work crews. While the surface can be driven or walked on at any stage, after the process is complete it takes about two weeks before the chip seal is firmly set.
30991If it is raining or if rain is in the forecast, we will assign our crews to other work for the day. Chip seal must go on a dry surface. That is also why we ask that you make sure any sprinklers are turned off beginning at midnight the night before the chip seal work is scheduled.
30991You will receive a notice at your door a few days ahead of time. If it does rain, work may be delayed.
30991Please move your car off the street from the time the chip sealing begins to the completion of the fog sealing process – a period of approximately 2-3 days. You will always be able to drive through the area, but the entire street surface must be available for the work crews. Please also let family, friends and delivery people know not to park their vehicle on the street during that time period. If a vehicle is left on the street, we try to find the owner, but delays cost tax money. Therefore, cars not moved by the time the work begins will be towed at the owner's expense. If your car is towed, contact the Sheriff's Office, 503-655-8441.
30991