US Bridges

County Road 23 over S. Fork Republican River

Poor

Kit Carson County, Colorado · 2 MI North County RD Aa · Structure no. KITC-23-6.50-04

Built
1963
62 years old
Condition
Poor
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
8 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 23 over S. Fork Republican River is a steel continuous stringer/multi-beam or girder carrying County Road 23 over S. Fork Republican River in Kit Carson County, Colorado. It was built in 1963, so it is 62 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 35 vehicles a day, projected to reach 41 by 2042. The structure is 166 ft (50.6 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCounty Road 23
CrossesS. Fork Republican River
Location2 MI North County RD Aa
RouteCounty Highway 0
Coordinates39.39541, -102.74272
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating23.3 US tons
Inventory rating13.9 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans8
Design loadHS 20
Structure length166 ft (50.6 m)
Longest span22 ft (6.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic41 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 23 over S. Fork Republican River built?

It was built in 1963, making it 62 years old in 2025.

What condition is County Road 23 over S. Fork Republican River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does County Road 23 over S. Fork Republican River carry?

About 35 vehicles per day (2022 count).

How long is County Road 23 over S. Fork Republican River?

The structure is 166 ft (50.6 m) long with a longest span of 22 ft (6.8 m) and a deck 24 ft wide.

Who owns County Road 23 over S. Fork Republican River?

It is owned by the County Highway Agency.