US Bridges

County Road over Alkali Wash

Fair

Grand County, Utah · Green River Missile Base · Structure no. 019001E

Built
1980
45 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
53 ft
2 main spans
Daily traffic
19
2010 count
Owner
County
County Highway Agency

About this bridge

County Road over Alkali Wash is a concrete culvert carrying County Road over Alkali Wash in Grand County, Utah. It was built in 1980, so it is 45 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 19 vehicles a day, projected to reach 23 by 2030. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road
CrossesAlkali Wash
LocationGreen River Missile Base
RouteCounty Highway 0
CountyGrand County
StateUtah
Coordinates38.97411, -110.1185
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating60 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length53 ft (16.2 m)
Longest span24 ft (7.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic19 (2010)
Projected traffic23 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Alkali Wash built?

It was built in 1980, making it 45 years old in 2025.

What condition is County Road over Alkali Wash 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 January 2024.

How much traffic does County Road over Alkali Wash carry?

About 19 vehicles per day (2010 count).

How long is County Road over Alkali Wash?

The structure is 53 ft (16.2 m) long with a longest span of 24 ft (7.4 m).

Who owns County Road over Alkali Wash?

It is owned by the County Highway Agency.