East end: US 12 in Lewiston Length 3.537 km | Counties: Nez Perce County Nez Perce County, Idaho | |
West end: SR 128 at Washington state line | ||
State Highway 128 (SH-128) is a 2.198-mile-long (3.537 km) state highway in the U.S. state of Idaho, serving the city of Lewiston in Nez Perce County. The highway travels east along the Clearwater River within Lewiston from Washington State Route 128 (SR 128) to U.S. Route 12 (US-12).
Contents
Map of ID-128, United States
Route description
SH-128 begins at the eastern terminus of SR 128 at the Washington–Idaho state line that separates the cities of Clarkston and Lewiston. The highway travels east along the Clearwater River as the Down River Road through an industrial park located in northern Lewiston. SH-128 intersects its spur route and turns northeast towards its eastern terminus, an intersection with US-12 eastbound.
Every year, the Idaho Transportation Department (ITD) 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, ITD calculated that 4,702 vehicles per day used SH-128 between the Washington state line and US-12.
Spur route
SH-128 has a short, 0.130-mile-long (0.209 km) spur route near its eastern terminus at US-12 in Lewiston. The spur route travels southeast from SH-128 to US-12 westbound and serves as an extension of the intersection of the two highways to the north.
Major intersections
The entire route is in Lewiston, Nez Perce County.