US Bridges

SR-87 over Duchesne River

Fair

Duchesne County, Utah · North Side of Duchesne · Structure no. 0D 588

Built
1959
66 years old
Condition
Fair
inspected May 2023
Type
Frame
Concrete Continuous
Length
137 ft
2 main spans
Daily traffic
5,489
2022 count
Owner
State
State Highway Agency

About this bridge

SR-87 over Duchesne River is a concrete continuous frame carrying SR-87 over Duchesne River in Duchesne County, Utah. It was built in 1959, so it is 66 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 5,489 vehicles a day, roughly 33% of them trucks, projected to reach 6,587 by 2042. The structure is 137 ft (41.8 m) long and 29 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

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CarriesSR-87
CrossesDuchesne River
LocationNorth Side of Duchesne
RouteState Highway 87
CountyDuchesne County
StateUtah
Coordinates40.1675, -110.40139
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating20 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length137 ft (41.8 m)
Longest span64 ft (19.4 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,489 (2022)
Projected traffic6,587 by 2042
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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-87 over Duchesne River built?

It was built in 1959, making it 66 years old in 2025.

What condition is SR-87 over Duchesne 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 May 2023.

How much traffic does SR-87 over Duchesne River carry?

About 5,489 vehicles per day (2022 count), of which roughly 33% are trucks.

How long is SR-87 over Duchesne River?

The structure is 137 ft (41.8 m) long with a longest span of 64 ft (19.4 m) and a deck 29 ft wide.

Who owns SR-87 over Duchesne River?

It is owned by the State Highway Agency.