US Bridges

County Road 40 over Republican River

Good

Kit Carson County, Colorado · 2.5 Miles North of Road L · Structure no. KITC-40-1.10-5A

Built
1999
26 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
312 ft
4 main spans
Daily traffic
39
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 40 over Republican River is a steel continuous stringer/multi-beam or girder carrying County Road 40 over Republican River in Kit Carson County, Colorado. It was built in 1999, so it is 26 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 39 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2042. The structure is 312 ft (95.1 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty Road 40
CrossesRepublican River
Location2.5 Miles North of Road L
RouteCounty Highway 0
Coordinates39.55717, -102.42533
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80.2 US tons
Inventory rating48.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length312 ft (95.1 m)
Longest span87 ft (26.4 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)
Projected traffic45 by 2042
Trucks2%
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 40 over Republican River built?

It was built in 1999, making it 26 years old in 2025.

What condition is County Road 40 over Republican River 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 40 over Republican River carry?

About 39 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 40 over Republican River?

The structure is 312 ft (95.1 m) long with a longest span of 87 ft (26.4 m) and a deck 34 ft wide.

Who owns County Road 40 over Republican River?

It is owned by the County Highway Agency.