US Bridges

County Road 40 over Dry Gulch

Fair

Kit Carson County, Colorado · .2 MI N of CR Ff · Structure no. KITC-40-0.20-04

Built
1979
46 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
117
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 40 over Dry Gulch is a steel stringer/multi-beam or girder carrying County Road 40 over Dry Gulch in Kit Carson County, Colorado. It was built in 1979, so it is 46 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 117 vehicles a day, roughly 10% of them trucks, projected to reach 136 by 2042. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 40
CrossesDry Gulch
Location.2 MI N of CR Ff
RouteCounty Highway 0
CountyKit Carson County
StateColorado
Coordinates39.45622, -102.42683
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 alignment6: Equal to present minimum criteria
Operating rating51.3 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span38 ft (11.7 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117 (2022)
Projected traffic136 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 40 over Dry Gulch built?

It was built in 1979, making it 46 years old in 2025.

What condition is County Road 40 over Dry Gulch 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 December 2023.

How much traffic does County Road 40 over Dry Gulch carry?

About 117 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is County Road 40 over Dry Gulch?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.7 m) and a deck 32 ft wide.

Who owns County Road 40 over Dry Gulch?

It is owned by the County Highway Agency.