High Friction Surface Treatment
Select roads to receive anti-skid treatment in 2021 to increase traction
King County Roads Services will apply a High Friction Surface Treatment (HFST) to 16 sections of King County Roads during the Summer 2021 and Summer 2022. Summer 2021 work will begin in August.
The anti-skid treatment improves safety by increasing traction and reducing the run-off-the-road crashes. The product provides more rolling resistance and is most successful on sharp curves where drivers slide off the road and hit fences, other barriers, and end up in the grass or a ditch.
King County applied this innovative product in 2015 and 2018 with success. King County has analyzed and reviewed areas where it could continue to make a difference.
The map below shows the locations where we will apply the treatment in 2021 and 2022.
Roads like these are good candidates for High Friction Surface Treatment. If a driver takes this corner too fast, s/he may slide and hit the trees or bounce off the guardrail. In this case, the anti-skid treatment creates greater traction leading up to and inside the curve, and the guardrail installation reduces the chance of hitting the trees which could cause greater physical harm.
HFST locations in 2021 and 2022
|1||Batten Road NE||NE 140th Street to 290th Avenue NE
|2||Fay Road NW||State Route 203 to 302nd Way NE
|3||NE Union Hill Road||238th Avenue NE to 240th Way NE
|4||SE Jones Road||House #17601 & House #17711|
|5||169th Avenue SE||Licorice Fern Trail to SE 112th Street|
|6||SE 128th Street||186th Place SE to 193rd Lane SE|
|7||Witte Road SE||SE 225th Place to State Route 169|
|8||Sweeney Road SE||212th Avenue SE to SE 222nd Street|
|9||Witte Road SE||SE 230th Place to SE 228th Street|
|10||352nd Avenue SE||SE 254th Street to SE 252nd Street|
|11||Black Diamond Ravensdale Road||Lake Ginder Road to 267th Avenue SE|
|12||SE Covington Sawyer Road||181st Avenue SE to 184th Place SE|
|13||212th Way SE||SE 368th Street to SE 376th Street|
|14||SE Green Valley Road||House #17225 & House #17601 (near Doreen Johnson Conservation Area)|
|15||SW 204th Street||107th Avenue SW to 111th Avenue SW|
|16||SW Bank Road||Commons Road SW to Thorsen Road SW|