Business Loop I-15 - Idaho Falls

Business Loop I-15/US 26 combine northward into Idaho Falls, ID
Business Loop I-15 and U.S. 26 overlap north between U.S. 91 and Idaho Falls, Idaho. 07/13/08

Beginning at Exit 116, Business Loop I-15 combines with U.S. 26 east along a four lane arterial to cross the Snake River and intersect the north end of U.S. 91. U.S. 26/Business Loop I-15 turn north at Sunnyside Road to parallel a railroad corridor northward to Yellowstone Avenue (old U.S. 91) and Downtown Idaho Falls.

Broadway Street takes Business Loop I-15/U.S. 20 Business west across the Snake River at the actual Idaho Falls to Exit 118. U.S. 26 east overlaps with U.S. 20 Business northeast to Northgate Mile.

Updated July 31, 2026