US Bridges

County Road 4C over N Fork Arikaree River

Fair

Lincoln County, Colorado · 0.5 Mile West of Road 43 · Structure no. LIN-4C-42.5A

Built
2000
25 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
74 ft
4 main spans
Daily traffic
14
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 4C over N Fork Arikaree River is a steel culvert carrying County Road 4C over N Fork Arikaree River in Lincoln County, Colorado. It was built in 2000, so it is 25 years old, younger 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 14 vehicles a day, projected to reach 17 by 2040. The structure is 74 ft (22.5 m) long and 74 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 4C
CrossesN Fork Arikaree River
Location0.5 Mile West of Road 43
RouteCounty Highway 0
CountyLincoln County
StateColorado
Coordinates39.55015, -103.27594
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating81.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length74 ft (22.5 m)
Longest span8 ft (2.4 m)
Deck width74 ft (22.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14 (2020)
Projected traffic17 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 4C over N Fork Arikaree River built?

It was built in 2000, making it 25 years old in 2025.

What condition is County Road 4C over N Fork Arikaree 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 May 2023.

How much traffic does County Road 4C over N Fork Arikaree River carry?

About 14 vehicles per day (2020 count).

How long is County Road 4C over N Fork Arikaree River?

The structure is 74 ft (22.5 m) long with a longest span of 8 ft (2.4 m) and a deck 74 ft wide.

Who owns County Road 4C over N Fork Arikaree River?

It is owned by the County Highway Agency.