Road Services - Highway Safety Program
Roadway safety project proposes safety improvements on 13 roadways
King County Road Services has received a $2,825,000 federal grant for safety improvements on 13 roadways and six intersections that have a higher-than-average number of collisions. Project design was completed in March 2013, and the plans were recently submitted to the Washington State Department of Transportation for grant review.
Roadways included in the grant and proposed safety improvements
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North King County
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Roadway
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Proposed safety improvements
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Cherry Valley/Kelly Road Northeast and Stillwater Road from Duvall to State Route 203
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
• Install more durable centerline marking material from Duvall city limits to Mountain View Road Northeast
• Additional raised pavement markers and wider plastic edgelines to emphasize selected curves with significant numbers of collisions, radar speed sign at one of these curves
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Issaquah Hobart Road from Issaquah to State Route 18
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• Wider and more durable plastic edge lines at intersections
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Northeast Ames Lake Road/Ames Lake-Carnation Road from State Route 202 to West Snoqualmie Valley Road
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
• Additional raised pavement markers and wider plastic edgelines and a radar speed sign to emphasize a curve with significant numbers of collisions
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Northeast Novelty Hill Road from Redmond to West Snoqualmie Valley Road
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• Wider and more durable plastic edge lines at intersections
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Northeast Woodinville-Duvall Road from Woodinville to Duvall
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• Wider and more durable plastic edge lines at intersections
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Southeast Preston-Fall City Road from Highpoint Way to State Route 202
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• Two radar speed signs to encourage vehicles to slow down through the 25 mph zone in Preston
• Other improvements are planned under a previously-awarded contract that is on hold waiting for drier weather; please visit the High-Risk Rural Roads Program website for more information
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Union Hill Road/238th Avenue Northeast and 236th Avenue Northeast from Redmond to State Route 202
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
• Install three radar speed signs on selected curves with a significant number of collisions
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South King County
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Roadway
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Proposed safety improvements
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| Auburn-Black Diamond Road from Highway 18 to Black Diamond
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
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| Covington Way Southeast/Southeast Covington Sawyer Road from Covington to State Route 169
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
• Four radar speed signs to emphasize curves with a significant number of collisions
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Southeast Kent-Kangley Road from Kent City Limits to Kanaskat-Kangley Road
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
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Southeast Green Valley Road from Auburn-Black Diamond Road to State Route 169
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
• Additional raised pavement markers and wider plastic edgelines to emphasize selected curves with significant numbers of collisions
• Solar flashers to emphasize curve warning signs at several locations
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| Southeast 128th Street from Renton to Southeast May Valley Road
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
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Veazie-Cumberland Road/Cumberland-Kanaskat Road Southeast from Retreat Kanaskat Road to Southeast 416th Street
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• Warning signs
• Reflectors on existing guardrail and concrete barriers
• More durable plastic edge lines at intersections
• Wider and more durable plastic edgelines and additional raised pavement markers to emphasize a curve with a significant number of collisions
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Project schedule
- Project design began in August 2011.
- There are a number of improvements planned under a previously-awarded contract that is on hold waiting for drier weather.
- The project will be advertised in the spring of 2013.
- Construction will be completed during the summer and fall of 2013.
Additional information
Please visit the High-Risk Rural Roads Program website for more information about the first phase of this project.
Intersection safety project proposes safety improvements at six intersections
King County is proposing to improve the safety of six intersections in unincorporated King County.The project is funded by a $1,125,000 federal grant that the county received in 2011 to complete safety improvements at intersections which have higher-than-average collisions. Each of the selected intersections has a significantly high volume of traffic and left-turn and rear-end related collisions.
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Roadway
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Proposed safety improvements
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55th Avenue South at South 277th Street and South Star Lake Road
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• Left-turn signal changes to provide increased protection for left-turning motorists
• Count-down pedestrian signal displays
• Signal and striping changes to address rear-end collisions involving westbound left-turn and westbound through vehicles; by restricting the movement from 55th Avenue South to westbound South 277th Street (making 55th Avenue South a right-turn-only approach), the improvement will provide additional green time to the westbound left-turn movement
• Advance signing to notify motorists of the need to select an alternate route to westbound South 277th/272nd Street
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140th Avenue Southeast at Southeast 171st Place
Enlarged view (478KB .jpg)
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• Left-turn signal changes to provide increased protection for left-turning motorists
• Count-down pedestrian signal displays
• Additional work if bid prices come in low:
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• Construction of sidewalk and/or ramps meeting American Disabilities Act (ADA) requirements
• Pedestrian buttons with locator tones, audible messaging and fibro-tactile (Braille)
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140th Avenue Southeast at Southeast Fairwood Boulevard
Enlarged view (481KB .jpg)
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• Left-turn signal changes to provide increased protection for left-turning motorists
• Count-down pedestrian signal displays
• Additional work if bid prices come in low:
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• Construction of sidewalk and/or ramps meeting American Disabilities Act (ADA) requirements
• Pedestrian buttons with locator tones, audible messaging and fibro-tactile (Braille)
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168th Avenue Southeast at Southeast 128th Street
Enlarged view (529KB .jpg)
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• Left-turn signal changes to provide increased protection for left-turning motorists
• Count-down pedestrian signal displays
• Pedestrian buttons with locator tones, audible messaging and fibro-tractile (Braille)
• Striping and signing changes to provide a left-turn lane in the westbound direction
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Military Road South at South 320th Street
Enlarged view (484KB .jpg)
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• Striping changes to increase radius through intersection, improving sight distance
• Widening to provide a right-turn lane in the eastbound direction
• Modifications to traffic signal system to provide advance signal heads eastbound and westbound directions in an effort to reduce rear-end collisions
• Modifications to existing signal control equipment
• Construction of sidewalk and/or ramps meeting American Disabilities Act (ADA) requirements
• Count-down pedestrian signal displays
• Pedestrian buttons with locator tones, audible messaging and fibro-tactile (Braille)
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Peasley Canyon Road at South 321st Street
Enlarged view (508KB .jpg)
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• Left-turn signal changes to provide increased protection for left-turning motorists
• Count-down pedestrian signal displays
• Modifications to signal control equipment
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Project budget and schedule
- Project design began in August 2011.
- Project will be advertised in the spring of 2013.
- Construction will be completed during the summer/fall of 2013.
Contact us
For more information about these projects, please contact: King County Department of Transportation Community Relations at community.relations@kingcounty.gov or 206-263-9770.
Information from the Road Services Division's website is available to people with disabilities in alternate formats upon request by calling 206-263-6482 or 711 for the TTY relay service.
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