US Bridges

I-15 (SR-15) over Weber-Davis Canal

Fair

Davis County, Utah · East Side of Sunset · Structure no. 0E1902

Built
1964
61 years old, rebuilt 2012
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
37 ft
1 main span
Daily traffic
138,457
2022 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) over Weber-Davis Canal is a concrete culvert carrying I-15 (SR-15) over Weber-Davis Canal in Davis County, Utah. It was built in 1964 and reconstructed in 2012, so it is 61 years old, older than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 138,457 vehicles a day, roughly 33% of them trucks, projected to reach 166,148 by 2042. The structure is 37 ft (11.3 m) long and 198 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-15 (SR-15)
CrossesWeber-Davis Canal
LocationEast Side of Sunset
RouteInterstate 15
CountyDavis County
StateUtah
Coordinates41.1375, -112.02556
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length37 ft (11.3 m)
Longest span34 ft (10.4 m)
Deck width198 ft (60.3 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic138,457 (2022)
Projected traffic166,148 by 2042
Trucks33%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-15) over Weber-Davis Canal built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2012.

What condition is I-15 (SR-15) over Weber-Davis Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does I-15 (SR-15) over Weber-Davis Canal carry?

About 138,457 vehicles per day (2022 count), of which roughly 33% are trucks.

How long is I-15 (SR-15) over Weber-Davis Canal?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.4 m) and a deck 198 ft wide.

Who owns I-15 (SR-15) over Weber-Davis Canal?

It is owned by the State Highway Agency.