US Bridges

SR-87 over Lake Fork Creek

Fair

Duchesne County, Utah · 1.8 Mile West of Altamont · Structure no. 0C 259

Built
1949
76 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
2,088
2017 count
Owner
State
State Highway Agency

About this bridge

SR-87 over Lake Fork Creek is a steel stringer/multi-beam or girder carrying SR-87 over Lake Fork Creek in Duchesne County, Utah. It was built in 1949, so it is 76 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 2,088 vehicles a day, roughly 36% of them trucks, projected to reach 2,506 by 2037. The structure is 44 ft (13.5 m) long and 31 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesSR-87
CrossesLake Fork Creek
Location1.8 Mile West of Altamont
RouteState Highway 87
CountyDuchesne County
StateUtah
Coordinates40.35778, -110.31361
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating107.1 US tons
Inventory rating81.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length44 ft (13.5 m)
Longest span40 ft (12.3 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,088 (2017)
Projected traffic2,506 by 2037
Trucks36%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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-87 over Lake Fork Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is SR-87 over Lake Fork Creek 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 Lake Fork Creek carry?

About 2,088 vehicles per day (2017 count), of which roughly 36% are trucks.

How long is SR-87 over Lake Fork Creek?

The structure is 44 ft (13.5 m) long with a longest span of 40 ft (12.3 m) and a deck 31 ft wide.

Who owns SR-87 over Lake Fork Creek?

It is owned by the State Highway Agency.