US Bridges

SR-30 over Little Bear River

Fair

Cache County, Utah · 5.5 Miles West of Logan · Structure no. 0F 572

Built
1995
30 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
1 main span
Daily traffic
8,955
2021 count
Owner
State
State Highway Agency

About this bridge

SR-30 over Little Bear River is a prestressed concrete stringer/multi-beam or girder carrying SR-30 over Little Bear River in Cache County, Utah. It was built in 1995, so it is 30 years old, younger 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 8,955 vehicles a day, roughly 29% of them trucks, projected to reach 10,746 by 2041. The structure is 120 ft (36.7 m) long and 51 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR-30
CrossesLittle Bear River
Location5.5 Miles West of Logan
RouteState Highway 30
StateUtah
Coordinates41.74639, -111.95278
Functional classRural Minor Arterial

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.9 US tons
Inventory rating62.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length120 ft (36.7 m)
Longest span118 ft (36 m)
Deck width51 ft (15.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,955 (2021)
Projected traffic10,746 by 2041
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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-30 over Little Bear River built?

It was built in 1995, making it 30 years old in 2025.

What condition is SR-30 over Little Bear River 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 July 2023.

How much traffic does SR-30 over Little Bear River carry?

About 8,955 vehicles per day (2021 count), of which roughly 29% are trucks.

How long is SR-30 over Little Bear River?

The structure is 120 ft (36.7 m) long with a longest span of 118 ft (36 m) and a deck 51 ft wide.

Who owns SR-30 over Little Bear River?

It is owned by the State Highway Agency.