King - SE Lake Francis Haul Road
Project Number: 1725-01
From milepost 0 to milepost 0.64
RATA Funds: $1,874,700
Legislative District: 5
Status: PE and Design
Date Approved: 2025
SE Lake Francis Rd. serves as a haul route for three commercial businesses providing construction materials, and a through route to 1,811 vehicles per day (September 2022). The roadway connects Renton, SR-169, and SR-18 to communities around Lake Francis, Lake Webster, and the Hobart area west of SR-18. Quality Aggregates, Pacific Topsoils, and Elk Heights Excavation contribute approximately 90, 40, and 10 heavy-truck trips per day along the roadway, respectively. These pits provide local construction materials to contractors, reducing costs for import from other areas. In addition, shorter distances for travel result in fewer emissions and greenhouse gases.
Existing deficiencies of the road include alligatored and worn pavement. The winding nature of the roadway and narrow 1-foot shoulders limit sight distance from the commercial business entrances and two private driveways. Sightline improvements will be addressed by the County via general maintenance activities. Relocation of existing power poles is not part of this project, and will be addressed through the Franchise Agreement with Puget Sound Energy. Other deficiencies such as steep slopes, less than 8-foot shoulders, and trees within the clear zone will not be addressed as part of this 2R project.
A 10-year collision history indicates only one reported collision which occurred in November 2023, when a vehicle on Maxwell Rd. lost its brakes and collided with a vehicle on SE Lake Francis Rd. As such, there is no established safety pattern associated with the clear zone deficiencies and they will not be addressed as part of this 2R project.
A 36-inch diameter culvert approximately 110 feet southeast of SE Cedar Grove Rd. is reported as partially blocked by the Washington State Fish Passage barrier map. This culvert was given a moderate Potential Habitat Benefit Score of 35 by drainage engineers. The King County Road Services Division’s Countywide Culvert Replacement Fish Passage Program seeks to improve culverts with Potential Habitat Benefit Scores of 25 or less over the next 10 years, and therefore, this culvert will be prioritized for replacement with the next group of culverts sometime after 2034. Replacement is anticipated to occur sometime between 2034 and 2044.
Existing deficiencies of the road include alligatored and worn pavement. The winding nature of the roadway and narrow 1-foot shoulders limit sight distance from the commercial business entrances and two private driveways. Sightline improvements will be addressed by the County via general maintenance activities. Relocation of existing power poles is not part of this project, and will be addressed through the Franchise Agreement with Puget Sound Energy. Other deficiencies such as steep slopes, less than 8-foot shoulders, and trees within the clear zone will not be addressed as part of this 2R project.
A 10-year collision history indicates only one reported collision which occurred in November 2023, when a vehicle on Maxwell Rd. lost its brakes and collided with a vehicle on SE Lake Francis Rd. As such, there is no established safety pattern associated with the clear zone deficiencies and they will not be addressed as part of this 2R project.
A 36-inch diameter culvert approximately 110 feet southeast of SE Cedar Grove Rd. is reported as partially blocked by the Washington State Fish Passage barrier map. This culvert was given a moderate Potential Habitat Benefit Score of 35 by drainage engineers. The King County Road Services Division’s Countywide Culvert Replacement Fish Passage Program seeks to improve culverts with Potential Habitat Benefit Scores of 25 or less over the next 10 years, and therefore, this culvert will be prioritized for replacement with the next group of culverts sometime after 2034. Replacement is anticipated to occur sometime between 2034 and 2044.