US Bridges

County Road 20 over Little Salt Wash

Fair

Mesa County, Colorado · .7 MI N of County Road L · Structure no. MESA-20-L.7

Built
1965
60 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
40 ft
1 main span
Daily traffic
457
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 20 over Little Salt Wash is a concrete culvert carrying County Road 20 over Little Salt Wash in Mesa County, Colorado. It was built in 1965, so it is 60 years old, older than the Colorado average of 42.2 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 457 vehicles a day, projected to reach 535 by 2042. The structure is 40 ft (12.1 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 20
CrossesLittle Salt Wash
Location.7 MI N of County Road L
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.18819, -108.68258
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.1 m)
Longest span40 ft (12.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic457 (2022)
Projected traffic535 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 20 over Little Salt Wash built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Road 20 over Little Salt 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 20 over Little Salt Wash carry?

About 457 vehicles per day (2022 count).

How long is County Road 20 over Little Salt Wash?

The structure is 40 ft (12.1 m) long with a longest span of 40 ft (12.1 m) and a deck 33 ft wide.

Who owns County Road 20 over Little Salt Wash?

It is owned by the County Highway Agency.