US Bridges

W/F Whiterocks over Whiterocks River

Fair

Duchesne County, Utah · 22 Mi. N. of Whiterocks · Structure no. 040102000001070

Built
1998
27 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
25
1998 count
Owner
Federal
U.S. Forest Service

About this bridge

W/F Whiterocks over Whiterocks River is a steel stringer/multi-beam or girder carrying W/F Whiterocks over Whiterocks River in Duchesne County, Utah. It was built in 1998, so it is 27 years old, younger 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 25 vehicles a day, projected to reach 37 by 2045. The structure is 50 ft (15.2 m) long and 14 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesW/F Whiterocks
CrossesWhiterocks River
Location22 Mi. N. of Whiterocks
RouteFederal Lands Road 10110
StateUtah
Coordinates40.78317, -110.01234
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadOther
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (1998)
Projected traffic37 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was W/F Whiterocks over Whiterocks River built?

It was built in 1998, making it 27 years old in 2025.

What condition is W/F Whiterocks over Whiterocks 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 August 2023.

How much traffic does W/F Whiterocks over Whiterocks River carry?

About 25 vehicles per day (1998 count).

How long is W/F Whiterocks over Whiterocks River?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 14 ft wide.

Who owns W/F Whiterocks over Whiterocks River?

It is owned by the U.S. Forest Service.