US Bridges

SR-121 over W.Chan. Uintah River

Fair

Uintah County, Utah · 5 Miles East of Neola · Structure no. 0E2607

Built
2010
15 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
1,131
2017 count
Owner
State
State Highway Agency

About this bridge

SR-121 over W.Chan. Uintah River is a concrete culvert carrying SR-121 over W.Chan. Uintah River in Uintah County, Utah. It was built in 2010, so it is 15 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 1,131 vehicles a day, roughly 35% of them trucks, projected to reach 1,357 by 2037. The structure is 35 ft (10.7 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesSR-121
CrossesW.Chan. Uintah River
Location5 Miles East of Neola
RouteState Highway 121
CountyUintah County
StateUtah
Coordinates40.43278, -109.93028
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating52.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,131 (2017)
Projected traffic1,357 by 2037
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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-121 over W.Chan. Uintah River built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR-121 over W.Chan. Uintah 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 July 2023.

How much traffic does SR-121 over W.Chan. Uintah River carry?

About 1,131 vehicles per day (2017 count), of which roughly 35% are trucks.

How long is SR-121 over W.Chan. Uintah River?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 35 ft wide.

Who owns SR-121 over W.Chan. Uintah River?

It is owned by the State Highway Agency.