US Bridges

Fdr over South Fork Rock Creek

Good

Duchesne County, Utah · 5.4 MI West/Jnctn #10134 · Structure no. 040104000035565

Built
2022
3 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fdr over South Fork Rock Creek is a steel stringer/multi-beam or girder carrying Fdr over South Fork Rock Creek in Duchesne County, Utah. It was built in 2022, so it is 3 years old, younger than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 44 ft (13.4 m) long and 20 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesFdr
CrossesSouth Fork Rock Creek
Location5.4 MI West/Jnctn #10134
RouteFederal Lands Road 10135
CountyDuchesne County
StateUtah
Coordinates40.55113, -110.7306
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating47.8 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span41 ft (12.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr over South Fork Rock Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Fdr over South Fork Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Fdr over South Fork Rock Creek carry?

About 50 vehicles per day (latest count).

How long is Fdr over South Fork Rock Creek?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.6 m) and a deck 20 ft wide.

Who owns Fdr over South Fork Rock Creek?

It is owned by the U.S. Forest Service and maintained by the County Highway Agency.