US Bridges

3500 West St. -Co. over Ashley Upper Canal

Fair

Uintah County, Utah · 2500 North 3500 West St. · Structure no. 047010E

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
189
2010 count
Owner
County
County Highway Agency

About this bridge

3500 West St. -Co. over Ashley Upper Canal is a concrete culvert carrying 3500 West St. -Co. over Ashley Upper Canal in Uintah County, Utah. It was built in 1970, so it is 55 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 189 vehicles a day, roughly 5% of them trucks, projected to reach 230 by 2030. The structure is 29 ft (8.7 m) long and 46 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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Carries3500 West St. -Co.
CrossesAshley Upper Canal
Location2500 North 3500 West St.
RouteCounty Highway 2728
CountyUintah County
StateUtah
Coordinates40.49186, -109.59601
Functional classUrban 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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length29 ft (8.7 m)
Longest span25 ft (7.5 m)
Deck width46 ft (13.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic189 (2010)
Projected traffic230 by 2030
Trucks5%
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

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 3500 West St. -Co. over Ashley Upper Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is 3500 West St. -Co. over Ashley Upper 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 3500 West St. -Co. over Ashley Upper Canal carry?

About 189 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is 3500 West St. -Co. over Ashley Upper Canal?

The structure is 29 ft (8.7 m) long with a longest span of 25 ft (7.5 m) and a deck 46 ft wide.

Who owns 3500 West St. -Co. over Ashley Upper Canal?

It is owned by the County Highway Agency.