US Bridges

I-15 (SR-15) Sbl over Deer Crossing

Fair

Beaver County, Utah · 7.9 Mi.No.Bear Valley Int · Structure no. 3F 363S

Built
1984
41 years old, rebuilt 2015
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
25,503
2023 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Sbl over Deer Crossing is a prestressed concrete stringer/multi-beam or girder carrying I-15 (SR-15) Sbl over Deer Crossing in Beaver County, Utah. It was built in 1984 and reconstructed in 2015, so it is 41 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 25,503 vehicles a day, roughly 32% of them trucks, projected to reach 30,604 by 2043. The structure is 75 ft (22.9 m) long and 63 ft wide.

Location

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CarriesI-15 (SR-15) Sbl
CrossesDeer Crossing
Location7.9 Mi.No.Bear Valley Int
RouteInterstate 15
CountyBeaver County
StateUtah
Coordinates38.17124, -112.6232
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span73 ft (22.1 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,503 (2023)
Projected traffic30,604 by 2043
Trucks32%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed—
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) Sbl over Deer Crossing built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2015.

What condition is I-15 (SR-15) Sbl over Deer Crossing 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) Sbl over Deer Crossing carry?

About 25,503 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is I-15 (SR-15) Sbl over Deer Crossing?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.1 m) and a deck 63 ft wide.

Who owns I-15 (SR-15) Sbl over Deer Crossing?

It is owned by the State Highway Agency.