US-91 (1100 South) over I-15
GoodBox Elder County, Utah · 1100 South Intchg · Structure no. 4F 852
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 186 ft
- 2 main spans
- Daily traffic
- 18,810
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
US-91 (1100 South) over I-15 is a prestressed concrete stringer/multi-beam or girder carrying US-91 (1100 South) over I-15 in Box Elder County, Utah. It was built in 2014, so it is 11 years old, younger than the Utah average of 40.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 18,810 vehicles a day, roughly 24% of them trucks, projected to reach 33,742 by 2030. The structure is 186 ft (56.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-91 (1100 South) over I-15 built?
It was built in 2014, making it 11 years old in 2025.
What condition is US-91 (1100 South) over I-15 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does US-91 (1100 South) over I-15 carry?
About 18,810 vehicles per day (2010 count), of which roughly 24% are trucks.
How long is US-91 (1100 South) over I-15?
The structure is 186 ft (56.6 m) long with a longest span of 91 ft (27.8 m) and a deck 43 ft wide.
Who owns US-91 (1100 South) over I-15?
It is owned by the State Highway Agency.