US Bridges

SR-30 over Little Bear River O

Fair

Cache County, Utah · 4.8 Miles West of Logan · Structure no. 0E 588A

Built
1937
88 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
7,615
2014 count
Owner
State
State Highway Agency

About this bridge

SR-30 over Little Bear River O is a concrete continuous culvert carrying SR-30 over Little Bear River O in Cache County, Utah. It was built in 1937, so it is 88 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 7,615 vehicles a day, roughly 29% of them trucks, projected to reach 9,519 by 2034. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR-30
CrossesLittle Bear River O
Location4.8 Miles West of Logan
RouteState Highway 30
CountyCache County
StateUtah
Coordinates41.74583, -111.94417
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 25 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,615 (2014)
Projected traffic9,519 by 2034
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-30 over Little Bear River O built?

It was built in 1937, making it 88 years old in 2025.

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

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

About 7,615 vehicles per day (2014 count), of which roughly 29% are trucks.

How long is SR-30 over Little Bear River O?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns SR-30 over Little Bear River O?

It is owned by the State Highway Agency.