The section of US 395 within the state of Washington starts concurrent with I-82 on the Umatilla Bridge, which goes over the Columbia River. From the bridge, the US 395/I-82 freeway goes north and intersects SR 14's eastern terminus before continuing north and spliting from I-82. As US 395 splits, the freeway enters Kennewick, where it intersects SR 240 and crosses the Columbia River on the Blue Bridge.3
As the bridge ends, US 395 enters Pasco and joins I-182 and US 12 before exiting north at an interchange with SR 397. From the interchange, US 395 continues north on the eastern side of the Tri-Cities Airport towards Spokane. US 395 goes northeast and intersects numerous state highways, such as SR 17 in Mesa, SR 260 in Connell, SR 26 east of Hatton, and SR 21 east of Lind before joining I-90 south of Ritzville.4
While concurrent with I-90, US 395 intersects more highways such as SR 261 south of Ritzville, SR 23 in Sprague, SR 904 in Tyler, SR 902 west of Cheney, SR 904 in Four Lakes, and SR 902 in Hayford before joining US 2 and entering Spokane.5
In West Spokane, US 395/I-90/US 2 intersects the northern terminus of US 195 before US 395 and US 2 split from I-90 in Downtown Spokane. US 395 and US 2 stay joined on Division Street through Downtown Spokane where the highway intersects SR 290 and pass Gonzaga University and Washington State University's Spokane branch. After entering the northern section of Spokane, US 395 and US 2 pass the NorthTown Mall and intersect SR 291 before US 395 splits from US 2 and continues north.6
From the Division split, US 395 goes north and intersects more highways like SR 292 in Loon Lake, and SR 231 south of Chewelah before joining SR 20 in Colville and continuing west and intersecting SR 25 in Kettle Falls before splitting from SR 20 and going north. From the split, US 395 goes north to Laurier where it crosses the Canadian border and becomes British Columbia Highway 395.789
History
Oregon to Pasco
When US 395 was extended southwest from Spokane into Oregon in the 1930s, it followed existing U.S. Highways - US 730 and US 410 - between the state line and Pasco;1011 it was not realigned to the more direct route via Kennewick until 1985.12 However, the road from Plymouth to Kennewick, cutting off a bend in the Columbia River, had existed (as a county road) since the early days of the state highway system,13 and was improved by the 1930s.10 The Washington State Legislature added the roadway to the state highway system in 1943 as part of a Maryhill-Kennewick branch of Primary State Highway 8.14 (The main route of PSH 8 turned northeast from Maryhill to Buena via US 97.)
Pasco to Spokane
A map of Primary State Highway 11
As part of the state's first connected state highway system, the Washington State Legislature designated the Central Washington Highway between Pasco and Spokane in 1913.15 The State Highway Board selected a route closely paralleling the Northern Pacific Railway's Pasco Division over existing county roads.1316 In 1923, by which time the entire road had been improved,17 the highway became State Road 11 (Primary State Highway 11 after 1937), but retained its name (which was changed to Columbia Basin Highway in 1929).1819 By that time, several routing changes had been made, with the State Highway Board moving the highway east away from the rail line between Eltopia and Connell and between Connell and Lind, and changing the direct northeasterly route from Cheney to Spokane to a northerly route enting at the Sunset Highway (now US 2) near Airway Heights.20 In the 1930s, US 395 was extended southwest from Spokane along SR 11 to Pasco, where it continued southeast on US 410 (now US 12) and southwest on US 730 into Oregon, both branches of State Road 3.1011US 10 was moved south between Cle Elum and Spokane in 1940, overlapping US 395 northeast of Ritzville.citation needed
Near Spokane, the Geiger Boulevard cutoff was built in about 1945 as a wartime project, improving access to Geiger Field. This included an interchange with Sunset Highway at the Spokane end.2122 This roadway, and the rest of US 395 between Ritzville and Pasco, was replaced by a freeway in the 1950s and 1960s, as part of the project to turn US 10 into Interstate 90. The first section to open was the bypass of Ritzville to Tokio in the late 1950s, and the final piece was between Tokio and Tyler in the late 1960s.22 When the bypass of Cheney opened on November 18, 1966,23 the old route became a short-lived Secondary State Highway 11H,24 always signed as State Route 904.25
As the first phase of converting US 395 between Pasco and Ritzville into a limited-access highway, the Department of Highways constructed a new a two-lane alignment between Connell and east of Lind in the mid-1950s, bypassing Lind and Foulkes Roads northeast from Connell and Wahl Road south from Lind.2622 Another relocation was built in about 1980, moving the highway alongside the rail line between Eltopia and Connell.22 The southernmost 7.5 miles (12 km) of SR 17, from Eltopia to Mesa, were absorbed into the realignment; SR 17's mileposts now begin at about 7.5.1 By 1991, when the Intermodal Surface Transportation Efficiency Act designated US 395 between Reno, Nevada and Canada as a high priority corridor of the National Highway System, and earmarked $54.5 million for improvements in Washington,27 the portion between Pasco and Mesa had been four-laned. That year, the state began an $83 million project, including $10.4 million more from the federal government, to widen the remainder north to Ritzville from two to four lanes. Several interchanges were also added to the road, then one of the state's most dangerous highways. WSDOT formally opened the last piece, 15 miles (24 km) of new northbound lanes near Lind, on November 21, 1995, completing a four-lane cross section between the Tri-Cities and Spokane.28 The speed limit was subsequently raised from 55 to 70 miles per hour (90 to 115 km/h) in July 1996, based on road conditions and actual driving speed.29
^ Session Laws of the State of Washington. 1985 chapter 177. "An act relating to state highway routes; amending RCW 47.17.055, 47.17.060, 47.17.455, and 47.17.575; adding a new section to chapter 47.17 RCW; and repealing RCW 47.17.281 and 47.17.867."
^ Session Laws of the State of Washington. 1943 chapter 239, p. 715. "An act relating to public highways; creating and establishing, describing and designating additions to the Primary State Highways of the State of Washington; eliminating certain Secondary State Highways from the Secondary State Highway System; amending sections 2, 3 and 12, chapter 207, Laws of 1937 (sections 6402-2, 6402-3 and 6402-12, Remington's Revised Statutes, Volume 7A); and declaring an emergency and that this act shall take effect April 1, 1943.": "There is hereby established an extension to Primary State Highway No. 8, described as follows: Beginning in the vicinity of Maryhill, running thence easterly by the most feasible route along the north bank of the Columbia river to a point in the vicinity of Plymouth, thence in a northeasterly direction to a junction with Primary State Highway No. 3 in the vicinity of Kennewick."
^ Session Laws of the State of Washington. 1913 chapter 65, p. 222. "An act relating to public highways, classifying the same and naming and fixing the routes of certain state roads.": "A highway connecting with the Inland Empire Highway at Pasco, Washington; thence by the most feasible route through Connell, Ritzville, Sprague, and Cheney to Spokane, Washington, to be known as the Central Washington Highway."
^ Session Laws of the State of Washington. 1923 chapter 185, p. 630. "An act relating to, classifying, naming and fixing the routes of certain state highways, amending Section 6796, and repealing Sections 6791, 6792, 6793, 6794, 6795, 6797, 6798, 6799, 6800, 6801, 6802, 6803, 6804, 6805, 6806, 6808, 6809, 6811, 6812, 6813 and 6816 of Remington's Compiled Statutes.": "A primary state highway, to be known as State Road No. 11 or the Central Washington Highway, is established as follows: Beginning at Pasco in Franklin County; thence by the most feasible route in a northeasterly direction through Connell, Ritzville, Sprague and Cheney to a connection with State Road No. 2 west of the City of Spokane."
^ Session Laws of the State of Washington. 1929 chapter 171, p. 432. "An act establishing a primary state highway to be known as State Road No. 11, or the Columbia Basin Highway, and amending Section 10 of Chapter 185 of the Laws of 1923."
^Department of Highways, Twenty-First Biennial Report, 1944-1946, p. 31: "the construction of Portland cement concrete pavement on PSH No. 11 between Geiger Field and Four Lakes, a distance of 2.888 miles"
^ Session Laws of the State of Washington. 1961 (1st extraordinary session) chapter 21, p. 2625. "Relating to public highways; describing powers and duties of the interim committee on highways, streets and bridges, license department and state highway commission; establishing and designating certain highways and alternate routes; providing for surveys and studies of proposed highway additions and toll facilities; prescribing fees, size, weight, load, permits and equipment restrictions for certain motor vehicles; prescribing regulations relating to motor vehicle fuel taxes; amending...; making appropriations; providing effective dates and declaring an emergency.": "Secondary state highway No. 11H; beginning at a junction with primary state highway No. 11 in the vicinity of Tyler, thence northeasterly via Cheney to a junction with primary state highway No. 11 in the vicinity of Four Lakes: Provided, That the addition of highway No. 11H shall not become effective until such time as the interstate system by-pass of Cheney is constructed and under traffic."
^ From 1964 to 1970, the old numbers remained legislatively but only the new numbers were signed.
^ 1991, H.R.2950. "An act to develop a national intermodal surface transportation system, to authorize funds for construction of highways, for highway safety programs, and for mass transit programs, and for other purposes."