US Bridges

County Road over Class C Canal

FairPosted for load

Duchesne County, Utah · 1 Mile Nw. of Altamont · Structure no. 013065C

Built
1986
39 years old
Condition
Fair
inspected April 2024
Type
Girder and Floorbeam System
Steel
Length
24 ft
1 main span
Daily traffic
38
2010 count
Owner
County
County Highway Agency

About this bridge

County Road over Class C Canal is a steel girder and floorbeam system carrying County Road over Class C Canal in Duchesne County, Utah. It was built in 1986, so it is 39 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 38 vehicles a day, projected to reach 46 by 2030. The structure is 24 ft (7.2 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesClass C Canal
Location1 Mile Nw. of Altamont
RouteCounty Highway 0
CountyDuchesne County
StateUtah
Coordinates40.36636, -110.30546
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating10.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20 + Mod
Structure length24 ft (7.2 m)
Longest span22 ft (6.7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38 (2010)
Projected traffic46 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road over Class C Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road over Class C Canal 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 April 2024.

How much traffic does County Road over Class C Canal carry?

About 38 vehicles per day (2010 count).

How long is County Road over Class C Canal?

The structure is 24 ft (7.2 m) long with a longest span of 22 ft (6.7 m) and a deck 25 ft wide.

Who owns County Road over Class C Canal?

It is owned by the County Highway Agency.