I-15 over Washington Main Street
GoodWashington County, Utah · 1.1 Mi.No.Washington Int · Structure no. 1F 947
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 129 ft
- 1 main span
- Daily traffic
- 67,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I-15 over Washington Main Street is a prestressed concrete stringer/multi-beam or girder carrying I-15 over Washington Main Street in Washington County, Utah. It was built in 2023, so it is 2 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 67,000 vehicles a day, roughly 25% of them trucks, projected to reach 110,000 by 2045. The structure is 129 ft (39.2 m) long and 64 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-15 over Washington Main Street built?
It was built in 2023, making it 2 years old in 2025.
What condition is I-15 over Washington Main Street 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 October 2024.
How much traffic does I-15 over Washington Main Street carry?
About 67,000 vehicles per day (2021 count), of which roughly 25% are trucks.
How long is I-15 over Washington Main Street?
The structure is 129 ft (39.2 m) long with a longest span of 123 ft (37.6 m) and a deck 64 ft wide.
Who owns I-15 over Washington Main Street?
It is owned by the State Highway Agency.