US Bridges

SR-121 over East Chan. Uintah River

Fair

Uintah County, Utah · 9.5 Miles East of Neola · Structure no. 0F 592

Built
1998
27 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
970
2021 count
Owner
State
State Highway Agency

About this bridge

SR-121 over East Chan. Uintah River is a prestressed concrete stringer/multi-beam or girder carrying SR-121 over East Chan. Uintah River in Uintah 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 970 vehicles a day, roughly 34% of them trucks, projected to reach 1,164 by 2041. The structure is 87 ft (26.5 m) long and 43 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesSR-121
CrossesEast Chan. Uintah River
Location9.5 Miles East of Neola
RouteState Highway 121
CountyUintah County
StateUtah
Coordinates40.40389, -109.87611
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length87 ft (26.5 m)
Longest span84 ft (25.6 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic970 (2021)
Projected traffic1,164 by 2041
Trucks34%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 East Chan. Uintah River built?

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

What condition is SR-121 over East 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 East Chan. Uintah River carry?

About 970 vehicles per day (2021 count), of which roughly 34% are trucks.

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

The structure is 87 ft (26.5 m) long with a longest span of 84 ft (25.6 m) and a deck 43 ft wide.

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

It is owned by the State Highway Agency.