State Route 155 is a state highway in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...

, running from

U.S. Route 2 U.S. Route 2 or U.S. Highway 2 (US 2) is an east–west United States Numbered Highways, U.S. Highway spanning across the northern continental United States. US 2 consists of two segments connected by various roadways in southern ...

near

Coulee City Coulee City is a town in Grant County, Washington. The population was 549 at the 2020 census. History The town was named after nearby Grand Coulee. Coulee City was officially incorporated on May 10, 1907. Geography Coulee City is located at ...

over

Disautel Pass Disautel Pass (el. 3252 ft./991 m.) is a mountain pass in the state of Washington.

to U.S. Route 97 and State Route 20 in the city of

Omak Omak ( Merriam (1997), p. 869) is a city located in the foothills of the Okanogan Highlands in north-central Washington, United States. With an estimated 4,845 residents as of 2010, distributed over a land area of , Omak is the largest municipa ...

. It is the main north–south route through the area around

Grand Coulee Dam Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerh ...

Route description

State Route 155 begins at an intersection with U.S. Route 2 northeast of

. From there, the highway heads north, paralleling the shore of

Banks Lake Banks Lake is a long reservoir in central Washington in the United States. Part of the Columbia Basin Project, Banks Lake occupies the northern portion of the Grand Coulee, a formerly dry coulee near the Columbia River, formed by the Missoula Fl ...

for much of the southern part of the route. After passing Steamboat Rock State Park, it crosses over Osborn Bay Lake before passing through Electric City. It then intersects State Route 174 in

Grand Coulee Grand Coulee is an ancient river bed in the U.S. state of Washington. This National Natural Landmark stretches for about 60 miles (100 km) southwest from Grand Coulee Dam to Soap Lake, being bisected by Dry Falls into the Upper and Lower ...

. The highway then heads northeast, crossing the Columbia River just north of the

. On the north side of the Columbia, State Route 155 turns west and traverses the

Colville Indian Reservation The Colville Indian Reservation is an Indian reservation in the northwest United States, in north central Washington, inhabited and managed by the Confederated Tribes of the Colville Reservation, which is federally recognized. Established ...

, passing through the communities of Nespelem and Disautel, crossing

Disautel Pass Disautel Pass (el. 3252 ft./991 m.) is a mountain pass in the state of Washington.

at an elevation of . As the highway descends from the pass, it approaches the town of

on Omak Avenue. On the east side of the town, it crosses under the two-lane carriageway of U.S. Route 97 and State Route 20. Since there is no access immediately at this underpass, State Route 155 continues three blocks west before turning south along Dayton Street to access U.S. Route 97. At the intersection of Omak Avenue and Dayton Street, a spur route of State Route 155 begins and continues west along Omak Avenue to terminate at State Route 215 in downtown Omak. This was the original alignment of State Route 155 before U.S. Route 97 was realigned onto its current bypass. State Route 155 Spur is long.

History

When State Route 155 was first established in 1964, U.S. Route 97 passed through downtown Omak and Okanogan on what is now State Route 215, rather than on its easterly bypass as it does today. Thus, State Route 155 continued west on what is now State Route 155 Spur to terminate at U.S. Route 97 in downtown Omak. When the US 97 bypass was built a few years later, State Route 155 was rerouted onto its current alignment. Prior to the 1964 highway renumbering, the section of State Route 155 from Coulee City to the Grand Coulee Dam was numbered Secondary State Highway 2F. From Grand Coulee to Omak, it was numbered Secondary State Highway 10A.

Spur route

A short spur route of SR 155 connects the main highway to downtown Omak, traveling for on Omak Avenue. It continues west from the US 97/SR 20 underpass and crosses over the

Okanogan River The Okanogan River (known as the Okanagan River in Canada) is a tributary of the Columbia River, approximately 115 mi (185 km) long, in southern British Columbia and north central Washington. It drains a scenic plateau region called th ...

before ending at an intersection with SR 215. The spur route was designated on the former route of SR 155 prior to the construction of the US 97 expressway in eastern Omak. WSDOT plans to rebuild the spur route's crossing of the Okanogan River in 2025 with wider lanes by replacing the sidewalks with a parallel pedestrian bridge.

Major intersections

References

External links

Highways of Washington State
{{Omak, Washington

155 Year 155 ( CLV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Severus and Rufinus (or, less frequently, year 908 ''Ab urbe condita'' ...

Transportation in Grant County, Washington Transportation in Okanogan County, Washington