Washington State Route 270

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State Route 270 marker

State Route 270
Map of Whitman County in eastern Washington with SR 270 highlighted in red
Route information
Auxiliary route of SR 27
Defined by RCW 47.17.485
Maintained by WSDOT
Length: 9.89 mi[2] (15.92 km)
Existed: 1964[1] – present
Major junctions
West end: US 195 in Pullman
  SR 27 in Pullman
East end: SH 8 near Moscow, Idaho
Counties: Whitman
Highway system
SR 263 SR 271

State Route 270 (SR 270) is a 9.89-mile-long (15.92 km) state highway in the U.S. state of Washington. The highway, located entirely within Whitman County, connects the city of Pullman to U.S. Route 195 (US 195) at its west end and Idaho State Highway 8 near Moscow, Idaho on its east end.

Route description[edit]

SR 270's western terminus is at U.S. Route 195 west of Pullman. It travels east along NW Davis Way into Pullman. At Grand Avenue, it connects with its parent route, State Route 27. SR 270 turns south onto N. Grand Ave and briefly runs concurrent with SR 27. At E. Main St, a one-way couplet begins. Eastbound SR 270 proceeds south one block on S. Grand Ave and turns east on SE Paradise Street. Westbound SR 270 uses E. Main Street. About four blocks east of Grand Ave, the couplet ends at a Y-shaped intersection of Main St and SE Paradise St.

SR 270 continues east on E. Main St and crosses a bridge over Paradise Creek and railroad tracks and forms the south border of the Washington State University (WSU) campus. Three major cross streets provide access to significant parts of Pullman: NE Stadium Way accesses the WSU campus, SW Bishop Boulevard serves south Pullman residential and commercial areas including Pullman Regional Hospital, and Pullman Airport Road connects the highway to Pullman-Moscow Regional Airport and provides secondary access to the WSU campus.

After Pullman Airport Road, SR 270 leaves Pullman city limits and enters an agricultural area. About one-half mile east of Pullman city limits, WSDOT proposes to build an interchange at the east terminus of SR 276 (the future North Pullman Bypass). SR 276 is a proposed highway that would bypass the City of Pullman and connect to US 195 northwest of Pullman.[3][4] The Bill Chipman Palouse Trail runs parallel to and south of SR 270 from the Paradise Creek bridge to Moscow. The trail is a paved pedestrian and bicycle route connecting Pullman and Moscow. A decommissioned railroad grade, the Chipman Trail was dedicated in April 1998.[5] After 4.57 miles (7.35 km), SR 270 intersects the Pullman Airport Road, which completes its loop around the airport north of SR 270. This eastern junction of the highway and Pullman Airport Road serves Idaho residents using Pullman-Moscow Regional Airport. SR 270 ends 0.82 miles (1.32 km) later at the Idaho state line, the Moscow city limits.


The original highway, today's "Old Moscow-Pullman Road," was completed as a gravel road in 1929.[6] Prior to the state highway renumbering in 1964, SR 270 was a spur of Primary State Highway 3.[7][8] East of the city limits, the highway was targeted for widening for decades.[9][10] It was expanded to four lanes within the last decade, with ground broken in June 2006.[11] The original design of a 60-foot (18 m) center median, similar to a rural interstate highway, was revised due to right-of-way costs.[12][13] The project was completed in October 2007 and added lanes from just east of SE Bishop Blvd to the Idaho state line.[14] The improved SR 270 is now a four-lane arterial from its junction with SR 27 (Grand Avenue) to the Pullman city limits and a four-lane divided highway to the state line. The improved SR 270 also has a median separating opposing traffic; in places, the median becomes a two-way left turn lane to provide safe access to adjacent property.[15][16] Safety was listed as a main concern for the improvements.[17] A highly publicized triple-fatality collision in 2001[18][19][20] likely hastened the long-standing project's revival and completion.

Major intersections[edit]

The entire highway is in Whitman County.

Location mi[2] km Destinations Notes
0.00 0.00 US 195 – Colfax, Spokane, Lewiston
Pullman 2.27 3.65 SR 27 north (Grand Avenue) – Washington State University, Palouse West end of SR 27 overlap
2.40 3.86 SR 27 south (Grand Avenue) to US 195 – Lewiston East end of SR 27 overlap
9.89 15.92 SH 8 east to US 95 – Moscow Idaho state line
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ "47.17.485: State route No. 270". Revised Code of Washington. Washington State Legislature. 1970. 
  2. ^ a b Multimodal Planning Division (January 15, 2015). State Highway Log Planning Report 2014, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. pp. 1328–1332. Retrieved June 2, 2015. 
  3. ^ "State Route No. 276". Revised Code of Washington. Washington State Legislature. 1973. RCW. Retrieved July 27, 2008. 
  4. ^ "SR 276—North Pullman Bypass—Route Development Plan" (PDF). Washington State Department of Transportation. February 2007. Retrieved July 27, 2008. 
  5. ^ "All-weather trail: rain doesn't dampen the fun as Chipman trail officially opens". Moscow-Pullman Daily News. April 6, 1998. p. 1A. 
  6. ^ "Moscow, Pullman join in celebrating highway". Lewiston Morning Tribune. October 16, 1929. p. 5. 
  7. ^ "Washington road map". David Rumsey Map collection. Rand McNally. (State Farm Insurance). 1940. Retrieved September 20, 2016. 
  8. ^ "Primary State Highway 3-Inland Empire Highway". Angelfire. Retrieved September 20, 2016. 
  9. ^ Scott, Margaret (January 12, 1984). "Highway project on hold". Spokesman-Review. Spokane, Washington. p. 6. 
  10. ^ Bird, Kenton (April 19, 1990). "Start planning now for 4-lane highway". Idahonian. Moscow, Idaho. (editorial). p. 4A. 
  11. ^ Mills, Joel (June 14, 2006). "Highway project is blasting forward". Lewiston Tribune. p. 1D. 
  12. ^ Marose, Ron (July 21, 2004). "Construction costs a factor for highway". Moscow-Pullman Daily News. p. 1A. 
  13. ^ Marose, Ron (July 28, 2004). "State scraps median plan for highway". Moscow-Pullman Daily News. p. 1A. 
  14. ^ Rokyta, Devin (October 30, 2007). "Ribbon cut; road not quite ready". Moscow-Pullman Daily News. p. 1A. 
  15. ^ "SR 270 Improvements—Pullman to Moscow". Washington State Department of Transportation. Retrieved July 27, 2008. 
  16. ^ Aerial Photography of Pullman, WA (Map). Live Search Maps. Retrieved July 27, 2008. 
  17. ^ Buchanan, Wyatt (January 22, 2002). "Moscow-Pullman road upgrade process begins". Lewiston Morning Tribune. p. 5A. 
  18. ^ Frye, Heather (June 6, 2001). "Driver in deadly crash faces charges". Lewiston Morning Tribune. p. 1A. 
  19. ^ Roesler, Richard (October 27, 2007). "Detective calls crash 'horrific'". Spokesman-Review. p. B1. 
  20. ^ "Spokane appeals court upholds Russell conviction". Seattle Times. Associated Press. April 5, 2011. Retrieved February 2, 2013. 

External links[edit]

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