US Bridges

County Road 39 over Republican River

FairPosted for load

Kit Carson County, Colorado · 0.2 Miles South of Road N · Structure no. KITC-39-0.30-01

Built
1954
71 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
360 ft
9 main spans
Daily traffic
31
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 39 over Republican River is a steel stringer/multi-beam or girder carrying County Road 39 over Republican River in Kit Carson County, Colorado. It was built in 1954, so it is 71 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 31 vehicles a day, projected to reach 36 by 2042. The structure is 360 ft (109.7 m) long and 20 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCounty Road 39
CrossesRepublican River
Location0.2 Miles South of Road N
RouteCounty Highway 0
CountyKit Carson County
StateColorado
Coordinates39.54391, -102.44436
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans9
Design loadUnknown
Structure length360 ft (109.7 m)
Longest span39 ft (12 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2022)
Projected traffic36 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 39 over Republican River built?

It was built in 1954, making it 71 years old in 2025.

What condition is County Road 39 over Republican River 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 39 over Republican River carry?

About 31 vehicles per day (2022 count).

How long is County Road 39 over Republican River?

The structure is 360 ft (109.7 m) long with a longest span of 39 ft (12 m) and a deck 20 ft wide.

Who owns County Road 39 over Republican River?

It is owned by the County Highway Agency.