US Bridges

I-15 SR-97 over Three Gates Trail

Good

Weber County, Utah · Southeast of Roy · Structure no. 0E2806

Built
2024
1 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
140,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-15 SR-97 over Three Gates Trail is a concrete slab carrying I-15 SR-97 over Three Gates Trail in Weber County, Utah. It was built in 2024, so it is 1 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 140,000 vehicles a day, roughly 18% of them trucks, projected to reach 175,000 by 2043. The structure is 32 ft (9.9 m) long and 472 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-15 SR-97
CrossesThree Gates Trail
LocationSoutheast of Roy
RouteInterstate 15
CountyWeber County
StateUtah
Coordinates41.1575, -112.024
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 13 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length32 ft (9.9 m)
Longest span29 ft (8.8 m)
Deck width472 ft (143.9 m)
Roadway width250 ft (76.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140,000 (2023)
Projected traffic175,000 by 2043
Trucks18%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-15 SR-97 over Three Gates Trail built?

It was built in 2024, making it 1 years old in 2025.

What condition is I-15 SR-97 over Three Gates Trail 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 2024.

How much traffic does I-15 SR-97 over Three Gates Trail carry?

About 140,000 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I-15 SR-97 over Three Gates Trail?

The structure is 32 ft (9.9 m) long with a longest span of 29 ft (8.8 m) and a deck 472 ft wide.

Who owns I-15 SR-97 over Three Gates Trail?

It is owned by the State Highway Agency.