Section of Interstate highway in Idaho, United States
This article is about the section of Interstate 15 in Idaho. For the entire route, see Interstate 15.
Interstate 15
I-15 highlighted in red
Route information
Maintained by ITD
Length
196 mi[1] (315 km)
NHS
Entire route
Major junctions
South end
I-15 at the Utah state line near Woodruff
Major intersections
US 91 near Arimo
US 30 near McCammon
I-86 in Pocatello
US 26 in Blackfoot
US 20 in Idaho Falls
North end
I-15 at the Montana state line at Monida Pass
Location
Country
United States
State
Idaho
Counties
Oneida, Bannock, Bingham, Bonneville, Jefferson, Clark
Highway system
Interstate Highway System
Main
Auxiliary
Suffixed
Business
Future
Idaho State Highway System
Interstate
US
State
← SH-14
→ SH-16
Interstate 15 (I-15) is a part of the Interstate Highway System that runs from San Diego, California, to Sweetgrass, Montana. In Idaho, the Interstate Highway runs exactly 196 miles (315 km) from the Utah state line near Woodruff north to the Montana state line at Monida Pass. I-15 is the primary north–south highway of Eastern Idaho. The Interstate Highway connects Pocatello and Idaho Falls, the fourth and fifth largest cities in Idaho, and the smaller county seats of Malad City, Blackfoot, and Dubois. I-15 connects all of those cities with Salt Lake City to the south and Butte to the north. The Interstate has business loops through McCammon, Inkom, Pocatello, Blackfoot, and Idaho Falls.
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Global Information
I-15 at the Utah state line near Woodruff
