State Route 107 | ||||
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SR 107 is highlighted in red.
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Route information | ||||
Auxiliary route of US 101 | ||||
Defined by RCW 47.17.190 | ||||
Maintained by WSDOT | ||||
Length: | 7.93 mi (12.76 km) | |||
Existed: | 1964 – present | |||
Major junctions | ||||
South end: | US 101 near Cosmopolis | |||
North end: | US 12 in Montesano | |||
Location | ||||
Counties: | Grays Harbor | |||
Highway system | ||||
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State Route 107 (SR 107) is a 7.93-mile-long (12.76 km) state highway serving Grays Harbor County in the U.S. state of Washington. The highway travels northeast from U.S. Route 101 (US 101) south of Cosmopolis to an interchange with US 12 in Montesano. SR 107 was created during the 1964 highway renumbering as the successor to a branch of Primary State Highway 9 (PSH 9), established earlier in 1937.
SR 107 begins at an intersection with US 101 in rural Grays Harbor County between Cosmopolis and Raymond. The highway travels north along the Little North River and east along the Chehalis River through the communities of Preachers Slough and Melbourne. SR 107 turns north in South Montesano and crosses the Chehalis River into the city of Montesano before the designation ends at a diamond interchange with US 12, while the roadway continues north as Main Street into the city.