US Bridges

SR-10 over Cotton Wood Wash

Fair

Emery County, Utah · South End of Castle Dale · Structure no. 0F 83

Built
1964
61 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
2 main spans
Daily traffic
5,419
2022 count
Owner
State
State Highway Agency

About this bridge

SR-10 over Cotton Wood Wash is a prestressed concrete stringer/multi-beam or girder carrying SR-10 over Cotton Wood Wash in Emery County, Utah. It was built in 1964, so it is 61 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 5,419 vehicles a day, roughly 41% of them trucks, projected to reach 6,503 by 2042. The structure is 154 ft (46.9 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSR-10
CrossesCotton Wood Wash
LocationSouth End of Castle Dale
RouteState Highway 10
CountyEmery County
StateUtah
Coordinates39.20905, -111.02416
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length154 ft (46.9 m)
Longest span75 ft (22.9 m)
Deck width41 ft (12.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,419 (2022)
Projected traffic6,503 by 2042
Trucks41%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

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-10 over Cotton Wood Wash built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR-10 over Cotton Wood Wash 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 August 2023.

How much traffic does SR-10 over Cotton Wood Wash carry?

About 5,419 vehicles per day (2022 count), of which roughly 41% are trucks.

How long is SR-10 over Cotton Wood Wash?

The structure is 154 ft (46.9 m) long with a longest span of 75 ft (22.9 m) and a deck 41 ft wide.

Who owns SR-10 over Cotton Wood Wash?

It is owned by the State Highway Agency.