Washington State Route 172
State Route 172 | ||||
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Route information | ||||
Auxiliary route of SR 17 | ||||
Maintained by WSDOT | ||||
Length | 35.01 mi[1] (56.34 km) | |||
Existed | 1964[2]–present | |||
Major junctions | ||||
West end | US 2 near Waterville | |||
East end | SR 17 near Leahy | |||
Location | ||||
Counties | Douglas | |||
Highway system | ||||
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State Route 172 (SR 172) is a 35.01-mile (56.34 km) long state highway serving rural Douglas County in the U.S. state of Washington. The highway travels north from U.S. Route 2 (US 2) near Waterville through Withrow and east through Mansfield before ending at SR 17 at Sims Corner. The highway follows the route of a county road built in the 1930s and signed as Secondary State Highway 10B (SSH 10B) in 1955. SSH 10B became SR 172 during the 1964 highway renumbering and served a daily average of less than 700 vehicles in 2011.
Route description[]
SR 172 begins as Road C NW at an intersection with US 2 at the unincorporated community of , between Waterville and Coulee City. The highway travels north through farmland and serves Withrow before climbing Lone Butte and turning east into 14th Road NW.[1] SR 172 continues east into Mansfield, where it becomes Main Street and turns southeast into Downtown at . The roadway turns northeast onto Railroad Avenue, serving the . SR 172 leaves Mansfield and continues east as 14th Road NE until it ends at SR 17 at Sims Corner, between Coulee City and Leahy.[3][4]
Every year the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2011, WSDOT calculated that between 200 and 690 vehicles per day used the highway, mostly in Mansfield.[5]
History[]
A gravel county road extending from Lone Butte through Mansfield to Sims Corner first appeared in a 1933 Department of Highways map of Washington.[6] The road was paved and used temporarily by Primary State Highway 10 (PSH 10) until a Bridgeport–Leahy road was built to the northeast in the 1950s.[7][8] A paved road from Mansfield to Withrow and was built by 1950 and was signed as an extension of Secondary State Highway 10B (SSH 10B) in 1955.[9][10] SSH 11B was split into SR 172 and SR 174 in the 1964 highway renumbering.[2][11][12]
Major intersections[]
The entire highway is in Douglas County.
Location | mi[1] | km | Destinations | Notes | |
---|---|---|---|---|---|
| 0.00 | 0.00 | US 2 – Coulee City, Waterville | Western terminus | |
| 35.01 | 56.34 | SR 17 – Coulee City, Bridgeport, Grand Coulee Dam | Eastern terminus | |
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
References[]
- ^ a b c Strategic Planning Division (March 5, 2012). State Highway Log Planning Report 2011, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. pp. 1164–1167. Retrieved January 15, 2013.
{{cite report}}
: CS1 maint: url-status (link) - ^ a b "47.17.355: State route No. 172". Revised Code of Washington. Washington State Legislature. 1970. Retrieved January 15, 2013.
- ^ Google (January 15, 2013). "State Route 172" (Map). Google Maps. Google. Retrieved January 15, 2013.
- ^ Douglas County 2010 Road Atlas (PDF) (Map) (2010 ed.). 1:16,000. East Wenatchee, Washington: Douglas County Transportation & Land Services. April 2010. pp. 111, 119. Retrieved January 15, 2013.
- ^ Staff (2011). "2011 Annual Traffic Report" (PDF). Washington State Department of Transportation. p. 152. Retrieved January 15, 2013.
- ^ Highway Map of the State of Washington (DJVU) (Map). Department of Highways. April 1, 1933. Retrieved January 15, 2013.
- ^ Highways of the State of Washington (DJVU) (Map). Department of Highways. 1939. Retrieved January 15, 2013.
- ^ "Chamber Session Broad in Scope". Spokane Daily Chronicle. Spokane, Washington. April 2, 1949. Retrieved January 15, 2013.
- ^ Washington State Legislature (1955). Session Laws of the State of Washington. Session Laws of the State of Washington (1955 ed.). Olympia, Washington: Washington State Legislature.
- ^ Ritzville, 1953 (JPG) (Map). 1:250,000. United States Geological Survey. 1953. Retrieved January 15, 2013.
- ^ Prahl, C. G. (December 1, 1965). "Identification of State Highways" (PDF). Washington State Highway Commission, Department of Highways. Retrieved January 15, 2013.
- ^ Ritzville, 1965 (JPG) (Map). 1:250,000. United States Geological Survey. 1965. Retrieved January 14, 2013.
External links[]
Route map:
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Wikimedia Commons has media related to Washington State Route 172. |
- State highways in Washington (state)
- Transportation in Douglas County, Washington