US Bridges

SR-160 over I-15 (SR-15) Nbl & S

Fair

Beaver County, Utah · South Beaver Interchange · Structure no. 0C 572

Built
1970
55 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
238 ft
2 main spans
Daily traffic
3,967
2022 count
Owner
State
State Highway Agency

About this bridge

SR-160 over I-15 (SR-15) Nbl & S is a steel continuous stringer/multi-beam or girder carrying SR-160 over I-15 (SR-15) Nbl & S in Beaver County, Utah. It was built in 1970, so it is 55 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 3,967 vehicles a day, roughly 43% of them trucks, projected to reach 4,760 by 2042. The structure is 238 ft (72.5 m) long and 44 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesSR-160
CrossesI-15 (SR-15) Nbl & S
LocationSouth Beaver Interchange
RouteState Highway 160
CountyBeaver County
StateUtah
Coordinates38.24917, -112.65056
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length238 ft (72.5 m)
Longest span117 ft (35.7 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,967 (2022)
Projected traffic4,760 by 2042
Trucks43%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

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 SR-160 over I-15 (SR-15) Nbl & S built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR-160 over I-15 (SR-15) Nbl & S 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 SR-160 over I-15 (SR-15) Nbl & S carry?

About 3,967 vehicles per day (2022 count), of which roughly 43% are trucks.

How long is SR-160 over I-15 (SR-15) Nbl & S?

The structure is 238 ft (72.5 m) long with a longest span of 117 ft (35.7 m) and a deck 44 ft wide.

Who owns SR-160 over I-15 (SR-15) Nbl & S?

It is owned by the State Highway Agency.