Idaho State Highway 40

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State Highway 40 marker

State Highway 40
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Route information
Maintained by ITD
Length: 2.737 mi[1] (4.405 km)
Major junctions
West end: I-15 near Downey
East end: US-91 in Downey
Location
Counties: Bannock
Highway system
State Highways in Idaho
SH-39 SH-41 x20px

State Highway 40 (SH-40) is a 2.737-mile-long (4.405 km) state highway in the U.S. state of Idaho, serving the city of Downey in Bannock County. The highway travels due east between an interchange with Interstate 15 (I-15) and an intersection with U.S. Route 91 (US-91) in Downey.

Route description

File:Idaho 40 western terminus.jpg
SH-40 at its western terminus, an interchange with I-15

SH-40 begins at a diamond interchange with I-15, located between Malad City and Pocatello, in rural Bannock County. The highway, known locally as Woodland Road, travels due east towards Downey and passes an Idaho Transportation Department maintenance yard before it enters the city of Downey. SH-40 ends at an intersection with US-91 within the city limits of Downey.[1][2][3]

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 752 vehicles used the highway between I-15 and US-91.[4]

Major intersections

File:Idaho 40 rural.jpg
SH-40 traveling west through rural Bannock County towards I-15

The entire route is in Bannock County.

Location mi[1] km Destinations Notes
0.000 0.000 I-15 – Malad, Salt Lake, Pocatello Western terminus, interchange
Downey 2.737 4.405 US-91 Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

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External links