US Bridges

County Road Dd over N.Fk Smokey Hill Rvr

Good

Cheyenne County, Colorado · .7 MI E of CR 31 · Structure no. CYDD-0.7-31A

Built
1992
33 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
8
2022 count
Owner
County
County Highway Agency

About this bridge

County Road Dd over N.Fk Smokey Hill Rvr is a concrete culvert carrying County Road Dd over N.Fk Smokey Hill Rvr in Cheyenne County, Colorado. It was built in 1992, so it is 33 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 8 vehicles a day, projected to reach 10 by 2042. The structure is 35 ft (10.6 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty Road Dd
CrossesN.Fk Smokey Hill Rvr
Location.7 MI E of CR 31
RouteCounty Highway 0
CountyCheyenne County
StateColorado
Coordinates38.99758, -102.58147
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.1 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length35 ft (10.6 m)
Longest span13 ft (4 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8 (2022)
Projected traffic10 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Dd over N.Fk Smokey Hill Rvr built?

It was built in 1992, making it 33 years old in 2025.

What condition is County Road Dd over N.Fk Smokey Hill Rvr 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 December 2023.

How much traffic does County Road Dd over N.Fk Smokey Hill Rvr carry?

About 8 vehicles per day (2022 count).

How long is County Road Dd over N.Fk Smokey Hill Rvr?

The structure is 35 ft (10.6 m) long with a longest span of 13 ft (4 m) and a deck 34 ft wide.

Who owns County Road Dd over N.Fk Smokey Hill Rvr?

It is owned by the County Highway Agency.