US Bridges

SR-45 over White River

Fair

Uintah County, Utah · 3 Miles S. of Bonanza · Structure no. 0C 744

Built
1982
43 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
520 ft
3 main spans
Daily traffic
228
2022 count
Owner
State
State Highway Agency

About this bridge

SR-45 over White River is a steel continuous stringer/multi-beam or girder carrying SR-45 over White River in Uintah County, Utah. It was built in 1982, so it is 43 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 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 228 vehicles a day, roughly 44% of them trucks, projected to reach 274 by 2042. The structure is 520 ft (158.5 m) long and 39 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSR-45
CrossesWhite River
Location3 Miles S. of Bonanza
RouteState Highway 45
CountyUintah County
StateUtah
Coordinates39.97829, -109.1778
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.7 US tons
Inventory rating51.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length520 ft (158.5 m)
Longest span225 ft (68.6 m)
Deck width39 ft (11.9 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic228 (2022)
Projected traffic274 by 2042
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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-45 over White River built?

It was built in 1982, making it 43 years old in 2025.

What condition is SR-45 over White 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-45 over White River carry?

About 228 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is SR-45 over White River?

The structure is 520 ft (158.5 m) long with a longest span of 225 ft (68.6 m) and a deck 39 ft wide.

Who owns SR-45 over White River?

It is owned by the State Highway Agency.