Business Loop I-84 - Mountain Home

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Business Loop I-84

Business Loop I-84 to Mountain Home branches southeast from I-84/U.S. 20-26-30 at Exit 90 along Old U.S. 30 (Highway 30) to the city center. Through Downtown, Business Loop I-84 partitions into the couplet of Main Street east and N 2nd East St west. Following American Legion Boulevard, the business route heads east with SH 51 along the historic route of U.S. 20 to I-84/U.S. 26-30 at the east split with U.S. 20.

Business Loop I-84 East
Business Loop I-84 intersects Ditto Creek Road just south of the trumpet interchange with I-84/U.S. 20-26-30.
Business Loop I-84 intersects Ditto Creek Road just south of the trumpet interchange with I-84/U.S. 20-26-30.
08/09/16

08/09/16

08/09/16

08/09/16
Business Loop I-84 reassurance marker posted along Highway 30 at 8th North Street.
Business Loop I-84 reassurance marker posted along Highway 30 at 8th North Street.
08/09/16
Business Loop I-84 (Highway 30) partitions into the couplet of Main Street eastbound and N 2nd East Street ahead of the Mountain Home city center.
Business Loop I-84 (Highway 30) partitions into the couplet of Main Street eastbound and N 2nd East Street ahead of the Mountain Home city center.
08/09/16
Business Loop I-84 meets Idaho State Highway 51 at American Legion Boulevard in Downtown Mountain Home.
Business Loop I-84 meets Idaho State Highway 51 at American Legion Boulevard in Downtown Mountain Home.
08/09/16
SH 51 follows Main Street south from the turn of Business Loop I-84 east onto American Legion Boulevard.
SH 51 follows Main Street south from the turn of Business Loop I-84 east onto American Legion Boulevard.
08/09/16
SH 51 heads 92.31 miles south from Business Loop I-84 in Downtown Mountain Home to Bruneau and Nevada State Route 225 at Owyhee.
SH 51 heads 92.31 miles south from Business Loop I-84 in Downtown Mountain Home to Bruneau and Nevada State Route 225 at Owyhee.
08/09/16
Business Loop I-84 East Idaho State Highway 51 North
SH 51 overlaps with Business Loop I-84 (American Legion Boulevard) east to I-84/U.S. 20-26-30.
SH 51 overlaps with Business Loop I-84 (American Legion Boulevard) east to I-84/U.S. 20-26-30.
08/09/16

08/09/16
American Legion Boulevard is the pre-freeway alignment of U.S. 20 east from Old U.S. 30 in Downtown Mountain Home.
American Legion Boulevard is the pre-freeway alignment of U.S. 20 east from Old U.S. 30 in Downtown Mountain Home.
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08/09/16
A distance sign referencing U.S. 20 control points precedes 18th East Street. Traffic lights were added along American Legion Boulevard at 18th East Street in 2019.
A distance sign referencing U.S. 20 control points precedes 18th East Street. Traffic lights were added along American Legion Boulevard at 18th East Street in 2019.
08/09/16
Business Loop I-84/SH 19 (American Legion Boulevard) curve northeast along a commercialized strip to the diamond interchange where U.S. 20 branches east from I-84/U.S. 26-30 to Hill City and Fairfield.
Business Loop I-84/SH 19 (American Legion Boulevard) curve northeast along a commercialized strip to the diamond interchange where U.S. 20 branches east from I-84/U.S. 26-30 to Hill City and Fairfield.
08/09/16

08/09/16
Business Loop I-84 West Idaho State Highway 51 South
Business Loop I-84 to Mountain Home commences west along American Legion Boulevard from the diamond interchange joining U.S. 20 with I-84/U.S. 26-30.
Business Loop I-84 to Mountain Home commences west along American Legion Boulevard from the diamond interchange joining U.S. 20 with I-84/U.S. 26-30.
08/09/16
Business Loop I-84 reassurance marker posted south of 8th North.
Business Loop I-84 reassurance marker posted south of 8th North.
08/09/16

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Connect with:

Interstate 84Interstate 84
U.S. 20U.S. 20

Page Updated Tuesday April 07, 2026.