US Bridges

I-15 (SR-15) over Salt Creek

Fair

Juab County, Utah · East Side of Nephi · Structure no. 0E2132

Built
1982
43 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
43,893
2022 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) over Salt Creek is a concrete continuous culvert carrying I-15 (SR-15) over Salt Creek in Juab County, Utah. It was built in 1982, so it is 43 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 5 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 43,893 vehicles a day, roughly 26% of them trucks, projected to reach 52,672 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-15 (SR-15)
CrossesSalt Creek
LocationEast Side of Nephi
RouteInterstate 15
CountyJuab County
StateUtah
Coordinates39.71222, -111.8175
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating0 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,893 (2022)
Projected traffic52,672 by 2042
Trucks26%
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 Salt Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is I-15 (SR-15) over Salt Creek 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 March 2023.

How much traffic does I-15 (SR-15) over Salt Creek carry?

About 43,893 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I-15 (SR-15) over Salt Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns I-15 (SR-15) over Salt Creek?

It is owned by the State Highway Agency.