US Bridges

SR-21 over Beaver River

Fair

Beaver County, Utah · 7.2 Miles West of Beaver · Structure no. 0D 659

Built
1960
65 years old
Condition
Fair
inspected February 2023
Type
Frame
Concrete Continuous
Length
76 ft
2 main spans
Daily traffic
1,675
2022 count
Owner
State
State Highway Agency

About this bridge

SR-21 over Beaver River is a concrete continuous frame carrying SR-21 over Beaver River in Beaver County, Utah. It was built in 1960, so it is 65 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 1,675 vehicles a day, roughly 8% of them trucks, projected to reach 2,010 by 2042. The structure is 76 ft (23.2 m) long and 34 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

Location

Open in Google Maps
CarriesSR-21
CrossesBeaver River
Location7.2 Miles West of Beaver
RouteState Highway 21
CountyBeaver County
StateUtah
Coordinates38.25337, -112.76692
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating20.7 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span35 ft (10.8 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,675 (2022)
Projected traffic2,010 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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-21 over Beaver River built?

It was built in 1960, making it 65 years old in 2025.

What condition is SR-21 over Beaver 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 February 2023.

How much traffic does SR-21 over Beaver River carry?

About 1,675 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR-21 over Beaver River?

The structure is 76 ft (23.2 m) long with a longest span of 35 ft (10.8 m) and a deck 34 ft wide.

Who owns SR-21 over Beaver River?

It is owned by the State Highway Agency.