US Bridges

County Road over Twenty Mile Wash

Fair

Garfield County, Utah · 20 Miles E.Of Escalante · Structure no. 017054V

Built
1990
35 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
19
2010 count
Owner
County
County Highway Agency

About this bridge

County Road over Twenty Mile Wash is a steel culvert carrying County Road over Twenty Mile Wash in Garfield County, Utah. It was built in 1990, so it is 35 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.

It carries about 19 vehicles a day, roughly 1% of them trucks, projected to reach 23 by 2030. The structure is 28 ft (8.6 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCounty Road
CrossesTwenty Mile Wash
Location20 Miles E.Of Escalante
RouteCounty Highway 1862
StateUtah
Coordinates37.5643, -111.38918
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length28 ft (8.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19 (2010)
Projected traffic23 by 2030
Trucks1%
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 County Road over Twenty Mile Wash built?

It was built in 1990, making it 35 years old in 2025.

What condition is County Road over Twenty Mile 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 July 2024.

How much traffic does County Road over Twenty Mile Wash carry?

About 19 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is County Road over Twenty Mile Wash?

The structure is 28 ft (8.6 m) long with a longest span of 12 ft (3.7 m).

Who owns County Road over Twenty Mile Wash?

It is owned by the County Highway Agency.