Washington State Route 128
Encyclopedia
State Route 128 is a Washington state highway
State highways in Washington
In the U.S. state of Washington, the Washington State Department of Transportation maintains a network of over 7000 miles of state highways, including all Interstate and U.S. Highways that pass through the state. The system comprises 8.5% of the state's public road mileage, but carries over half...

 located in Asotin and Whitman
Whitman County, Washington
Whitman County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 44,776, with the majority living in its largest city, Pullman, home to Washington State University, the state's land-grant university. The county seat is at Colfax.Whitman County was...

 counties, west of the Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

 state line. The 2.3 miles (3.7 km) long route runs north from (US 12) in Clarkston
Clarkston, Washington
Clarkston is a city in Asotin County in the southeastern part of the U.S. state of Washington. It is part of the Lewiston ID-WA Metropolitan Statistical Area. The population was 7,229 in 2010....

 to cross the Snake River
Snake River
The Snake is a major river of the greater Pacific Northwest in the United States. At long, it is the largest tributary of the Columbia River, the largest North American river that empties into the Pacific Ocean...

 and turn east after intersecting to terminate at (SH 128) on the Idaho state line. The highway was originally created in 1964 on a Pomeroy
Pomeroy, Washington
Pomeroy is a city in Garfield County, Washington, United States. The population was 1,425 at the 2010 census. It is the county seat of Garfield County.-Geography: Pomeroy is located at ....

–Clarkston route, replacing (SSH 3K), which had been established in 1937; in 1991, the route was changed to its present form.

Route description

State Route 128 (SR 128) begins at an intersection with (US 12) in Clarkston
Clarkston, Washington
Clarkston is a city in Asotin County in the southeastern part of the U.S. state of Washington. It is part of the Lewiston ID-WA Metropolitan Statistical Area. The population was 7,229 in 2010....

, a city in Asotin County. The road then crosses the Snake River
Snake River
The Snake is a major river of the greater Pacific Northwest in the United States. At long, it is the largest tributary of the Columbia River, the largest North American river that empties into the Pacific Ocean...

 over the Red Wolf Crossing into Whitman County
Whitman County, Washington
Whitman County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 44,776, with the majority living in its largest city, Pullman, home to Washington State University, the state's land-grant university. The county seat is at Colfax.Whitman County was...

, where it crosses the Starbuck, WA
Starbuck, Washington
Starbuck is a town in Columbia County, Washington, United States. The population was 129 at the 2010 census.-History:Named for railroad official W. H. Starbuck, the town was originally a junction on the main line of the Oregon Railroad and Navigation Company. The town was platted in 1894, and...

Spalding, ID
Spalding, Idaho
Spalding is an unincorporated village in Nez Percé County, Idaho, United States, ten miles east of Lewiston, on the Clearwater River close to the intersection of U.S. Routes 95 and 12...

 route of the Great Northwest Railroad and intersects the eastern terminus of . At the SR 193 intersection, the highway turns east and continues to the Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

 state line, where it becomes (SH-128); which continues for another 2.198 miles (3.537 km) before ending at north of Lewiston, Idaho
Lewiston, Idaho
Lewiston is a city in and also the county seat of Nez Perce County in the Pacific Northwest state of Idaho. It is the second-largest city in the northern Idaho region, behind Coeur d'Alene and ninth-largest in the state. Lewiston is the principal city of the Lewiston, ID - Clarkston, WA...

. SR 128 after the US 12 intersection was used by 5,000 motorists daily in 2007 based on average annual daily traffic (AADT) data collected by the Washington State Department of Transportation
Washington State Department of Transportation
The Washington State Department of Transportation , was established in 1905. The agency, led by a Secretary and overseen by the Governor, is a Washington governmental agency that constructs, maintains, and regulates the use of the state's transportation infrastructure...

.

History

The first highway that would later become SR 128 was Secondary State Highway 3K (SSH 3K), which was first designated in 1937. The road ran from Pomeroy
Pomeroy, Washington
Pomeroy is a city in Garfield County, Washington, United States. The population was 1,425 at the 2010 census. It is the county seat of Garfield County.-Geography: Pomeroy is located at ....

 in Garfield County southeast to Peola and later northeast to Clarkston
Clarkston, Washington
Clarkston is a city in Asotin County in the southeastern part of the U.S. state of Washington. It is part of the Lewiston ID-WA Metropolitan Statistical Area. The population was 7,229 in 2010....

, terminating at (PSH 3), co-signed with (US 410) at both termini. During the 1964 highway renumbering, SSH 3K became SR 128, which ran 42.19 miles (67.9 km); the current route of the highway was occupied by , which was from 1969 to 1970. In 1990, SR 193 was shortened from the Red Wolf Crossing to the Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

 state line, which SR 128 was extended over. A year after the extension to Idaho, SR 128 was shortened from Pomeroy to Clarkston along its current route, a loss of 42.19 miles (67.9 km) in total.

Major intersections

County Location Mile Destinations Notes
Asotin Clarkston
Clarkston, Washington
Clarkston is a city in Asotin County in the southeastern part of the U.S. state of Washington. It is part of the Lewiston ID-WA Metropolitan Statistical Area. The population was 7,229 in 2010....

0.00 Western terminus
0.39 Red Wolf Crossing over Snake River
Snake River
The Snake is a major river of the greater Pacific Northwest in the United States. At long, it is the largest tributary of the Columbia River, the largest North American river that empties into the Pacific Ocean...

Whitman
Whitman County, Washington
Whitman County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 44,776, with the majority living in its largest city, Pullman, home to Washington State University, the state's land-grant university. The county seat is at Colfax.Whitman County was...

0.51 Eastern terminus of SR 193
2.30 Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

 state line
Continues as Idaho State Highway 128

External links

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