US Bridges

County Road 43.5 over Coon Hollow Wash

Good

Mesa County, Colorado · 2.5 MI SW on CR 44 · Structure no. MESA-43.5-U.2A

Built
1996
29 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
37 ft
2 main spans
Daily traffic
16
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 43.5 over Coon Hollow Wash is a concrete culvert carrying County Road 43.5 over Coon Hollow Wash in Mesa County, Colorado. It was built in 1996, so it is 29 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16 vehicles a day, projected to reach 18 by 2042. The structure is 37 ft (11.2 m) long and 32 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesCounty Road 43.5
CrossesCoon Hollow Wash
Location2.5 MI SW on CR 44
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.30753, -108.23722
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating41 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length37 ft (11.2 m)
Longest span18 ft (5.5 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2022)
Projected traffic18 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 43.5 over Coon Hollow Wash built?

It was built in 1996, making it 29 years old in 2025.

What condition is County Road 43.5 over Coon Hollow Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does County Road 43.5 over Coon Hollow Wash carry?

About 16 vehicles per day (2022 count).

How long is County Road 43.5 over Coon Hollow Wash?

The structure is 37 ft (11.2 m) long with a longest span of 18 ft (5.5 m) and a deck 32 ft wide.

Who owns County Road 43.5 over Coon Hollow Wash?

It is owned by the County Highway Agency.