State Route 13
SR 13 originates in Brigham City from U.S. 89/91 and ends 33.14 miles to the north at the Plymouth Interchange (Exit 392) with Interstate 15. The state route from Main Street in Brigham City northwest to Corrine and Bear River City is the historic alignment of both U.S. 30S and U.S. 191. I-15/80N temporarily ended at the highway leading north through Elwood as well.
Within Brigham City, SR 13 followed the northern two thirds of what was Business Loop I-15/84. Most signs for the route were removed by 2018, with the exception of two assemblies along S Main Street between U.S. 89/91 and 700 South. The southern leg of the business loop coincided with U.S. 91 west from the south end of SR 13 to I-15/84 at Exit 362. The north end was the folded diamond interchange joining SR 13 with I-15/84 at Exit 365.
The southern leg of Business Loop I-15/84 to Tremonton overlaps SR 13 north between I-15/84 at Elwood and SR 102 (Main Street) at Crossroads. SR 13 continues north from there through Bear River Valley to Riverside and Plymouth. SR 13 separates with the former route of U.S. 191 to link with I-15 via 20800 North. Construction of Interstate 15 severed the old alignment of U.S. 191 north through Malad Valley.
North
The first confirming marker for SR 13 stands just north of U.S. 89/91 by Eagle Mountain Golf Course. Also posted are one of the two remaining assemblies for Business Loop I-15/84 in Brigham City as of 2019.
07/08/16
SR 13 (S Main Street) intersects 990 South at Utah State University Brigham City.
07/08/16
Trailblazers for Business Loop I-15/84 precede the traffic light with 700 South on SR 13 (S Main Street) northbound.
07/08/16
SR 13 (Main Street) meets SR 90 (200 South) adjacent to the Brigham City Utah Temple. This is the historic south end of U.S. 191.
07/08/16
SR 90 (200 South) connects SR 13 with U.S. 89/91 through Box Elder Canyon, 1.18 miles to the east. SR 90 follows old U.S. 89/91.
07/08/16
Main Street north at 100 South.
07/08/16
Entering Downtown Brigham City on SR 13 (Main Street) north.
07/08/16
Forest Street links Downtown Brigham City with I-15/84 at Exit 363, 2.3 miles to the west.
07/08/16
Forest Street ties into Main Street across from the Box Elder County Courthouse.
07/08/16
Main Street north at 100 North.
07/08/16
SR 13 turns west from Main Street toward I-15/84 at 900 North and the south end of SR 38. SR 38 parallels the Wellsville Mountains north to Honeyville.
07/08/16
SR 13 runs west across the north side of Brigham City between SR 38 and I-15/84.
07/08/16
Following old U.S. 30S/191, SR 13 reaches the town of Corinne in six miles and Tremonton in 18 miles.
07/08/16
A folded diamond interchange joins SR 13 with I-15/84, 2.54 miles west of SR 38 (N Main Street) by Black Slough.
08/10/16
A loop ramp joins SR 13 with I-15/84 south to Ogden.
08/10/16
I-15/84 pass through western reaches of the Brigham City limits between SR 13 and U.S. 191.
08/10/16
SR 13 converges with I-15/84 north of Bear River City in the rural town of Elwood. The state route crosses over the freeway at a diamond interchange, where Business Loop I-15/84 begin.
07/08/16
Installed in 2016, this shield assembly precedes the entrance ramp from SR 13 (5200 West) to I-15/84 north ahead of their separation. Snowville is a small town located 37.5 miles to the northwest along Interstate 84.
07/08/16
North 
West
A confirming marker for SR 13 stands between the north side ramps of I-15/84 and 9600 North.
07/08/16
Business Loop I-15/84-SR 13 (5200 West) north of 10400 North. The three routes overlap for 2.01 miles to SR 102 (Main Street) in the city of Tremonton.
08/10/16
Business Loop I-15/84 and SR 13 (1600 East) meet SR 102 (Main Street) at Crossroads in east Tremonton. SR 102 constitutes a 20.09 mile long highway southwest from Penrose to SR 83 and east from SR 13 to SR 38 in Deweyville.
07/08/16
Business Loop I-15/84 turn west from SR 13 (1600 East) alongside SR 102 (Main Street) split with SR 13 north for SR 102 (Main Street) across Tremonton.
07/08/16
North
Entering the community of Riverside, SR 13 (5400 West) intersects SR 30, a route between I-15 and the city of Logan.
08/10/16
SR 13 concludes at a diamond interchange (Exit 392) with Interstate 15 northwest from the town of Plymouth.
07/13/08
The West Hills rise beyond the exchange joining SR 13 with Interstate 15.
07/13/08
This shield assembly accompanies an End State Maintenance sign ahead of the west freeway frontage road. Box Elder County Route 1130 overtakes 20800 North west from here to the Nucor Steel plant.
07/13/08
South
SR 13 begins at a rural diamond interchange (Exit 392) linking Interstate 15 with 20800 North near the town of Plymouth. 20800 leads the state route 0.6 miles east to Old U.S. 191 south.
07/13/08
Interstate 15 heads north to Pocatello, Idaho, replacing the original alignment of U.S. 191 from Plymouth. SR 13 follows Old U.S. 191 south across Bear River Valley.
07/13/08
Confirming marker for SR 13 posted south of SR 30 (15200 North) in Riverside.
08/10/16
SR 13 combines with Business Loop I-15/84 south from Crossroads in Tremonton to I-15/84 in the town of Elwood. This pair of shields for the business routes stands beyond 10400 North.
07/08/16
Business Loop I-15/84 conclude south along SR 13 at the diamond interchange (Exit 376) with I-15/84 in the town of Elwood.
07/13/08
Passing over the freeway, SR 13 reaches the southbound entrance ramp for I-15/84 to Ogden and Salt Lake City.
07/13/08
Trailblazers acknowledging SR 13 as part of Business Loop I-15/84 at Exit 365 from I-15/84 south were removed by 2018.
08/10/16
Paralleling a Union Pacific Railroad line, SR 13 meets I-15/84 at a folded diamond interchange on the northwest side of Brigham City.
08/10/16
SR 13 proceeds east along historic U.S. 30S/191 into Brigham City.
08/10/16
SR 13 converges with the south end of SR 38 (Main Street) at 900 North in Brigham City.
07/08/16
SR 13 overtakes Main Street south from SR 38 to Downtown Brigham City.
07/08/16
Main Street enters the Brigham City business district south at 100 North.
07/08/16
Forest Street leads west from SR 13 (Main Street) and Downtown Brigham City 2.3 miles to I-15/84.
07/08/16
The Box Elder County Courthouse faces the intersection of Main and Forest Streets from the east.
07/08/16
A decorative arch spans Main Street south between Forest Street and 100 South.
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The succeeding traffic light on Main Street south is at 100 South.
07/08/16
Forthcoming SR 90 (200 North) represents the old alignment of U.S. 89/91 east from Brigham City to Box Elder Canyon. South from 200 North, SR 13 follow old U.S. 30S/89/91.
07/08/16
SR 90 provides a direct route from Downtown Brigham City east 1.18 miles to U.S. 89/91 for Logan.
07/08/16
A distance sign acknowledges old U.S. 89 along SR 13 (Main Street) south of SR 90 and the historic end of U.S. 191.
07/08/16
Main Street south at 500 South.
07/08/16
700 South heads east to apartments adjacent to Utah State University Brigham City and Eagle Mountain Golf Course.
07/08/16
SR 13 (Main Street) runs west of Utah State University Brigham City to 990 South.
07/08/16
U.S. 89/91 bypass Brigham City to the southeast along a controlled access expressway to SR 13 (S Main Street).
07/08/16
Trailblazers for Business Loop I-15/84 referencing the overlap with the final two miles of U.S. 91 were removed by 2018.
07/08/16
U.S. 91 concludes 2.01 miles to the west at I-15/84. U.S. 89 turns south at SR 13 and Brigham City into the city of Perry.
07/08/16
An end shield for SR 13 stands at S Main Street and 1100 South.
07/08/16
Photo Credits:
- Alex Nitzman: 07/08/16, 08/10/16
- ABRoads: 08/10/16
- Andy Field: 07/13/08
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Page Updated Wednesday February 16, 2022.