US Bridges

County Road 4065 over Fire Mountain Canal

Good

Delta County, Colorado · .6 MI N of SH 133 · Structure no. DEL4010D16.1-65

Built
1981
44 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Concrete
Length
36 ft
1 main span
Daily traffic
248
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 4065 over Fire Mountain Canal is a concrete tee beam carrying County Road 4065 over Fire Mountain Canal in Delta County, Colorado. It was built in 1981, so it is 44 years old, older 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 248 vehicles a day, roughly 2% of them trucks, projected to reach 280 by 2042. The structure is 36 ft (11 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty Road 4065
CrossesFire Mountain Canal
Location.6 MI N of SH 133
RouteCounty Highway 0
CountyDelta County
StateColorado
Coordinates38.88714, -107.59497
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic248 (2022)
Projected traffic280 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 4065 over Fire Mountain Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is County Road 4065 over Fire Mountain Canal 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 September 2023.

How much traffic does County Road 4065 over Fire Mountain Canal carry?

About 248 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 4065 over Fire Mountain Canal?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 30 ft wide.

Who owns County Road 4065 over Fire Mountain Canal?

It is owned by the County Highway Agency.