US Bridges

I-15(SR-15)NB&RAMP over Fremont Wash

Fair

Iron County, Utah · 1.3 Mi.No.Bear Valley Int · Structure no. 0E2064

Built
1956
69 years old, rebuilt 1981
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
25,239
2022 count
Owner
State
State Highway Agency

About this bridge

I-15(SR-15)NB&RAMP over Fremont Wash is a concrete continuous culvert carrying I-15(SR-15)NB&RAMP over Fremont Wash in Iron County, Utah. It was built in 1956 and reconstructed in 1981, so it is 69 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 25,239 vehicles a day, roughly 33% of them trucks, projected to reach 30,287 by 2042. The structure is 43 ft (13 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesI-15(SR-15)NB&RAMP
CrossesFremont Wash
Location1.3 Mi.No.Bear Valley Int
RouteInterstate 15
CountyIron County
StateUtah
Coordinates38.09806, -112.66075
Functional classRural 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length43 ft (13 m)
Longest span20 ft (6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,239 (2022)
Projected traffic30,287 by 2042
Trucks33%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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)NB&RAMP over Fremont Wash built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1981.

What condition is I-15(SR-15)NB&RAMP over Fremont Wash 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 February 2023.

How much traffic does I-15(SR-15)NB&RAMP over Fremont Wash carry?

About 25,239 vehicles per day (2022 count), of which roughly 33% are trucks.

How long is I-15(SR-15)NB&RAMP over Fremont Wash?

The structure is 43 ft (13 m) long with a longest span of 20 ft (6 m).

Who owns I-15(SR-15)NB&RAMP over Fremont Wash?

It is owned by the State Highway Agency.