US Bridges

County Road 43 over N Fork Arikaree River

Fair

Lincoln County, Colorado · 0.7 Mile South of Road 4D · Structure no. LIN-43-4C.3A

Built
1993
32 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
142 ft
2 main spans
Daily traffic
58
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 43 over N Fork Arikaree River is a steel continuous stringer/multi-beam or girder carrying County Road 43 over N Fork Arikaree River in Lincoln County, Colorado. It was built in 1993, so it is 32 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 58 vehicles a day, projected to reach 74 by 2040. The structure is 142 ft (43.2 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 43
CrossesN Fork Arikaree River
Location0.7 Mile South of Road 4D
RouteCounty Highway 0
CountyLincoln County
StateColorado
Coordinates39.55413, -103.26587
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.6 US tons
Inventory rating63.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length142 ft (43.2 m)
Longest span68 ft (20.7 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2020)
Projected traffic74 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 43 over N Fork Arikaree River built?

It was built in 1993, making it 32 years old in 2025.

What condition is County Road 43 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 43 over N Fork Arikaree River carry?

About 58 vehicles per day (2020 count).

How long is County Road 43 over N Fork Arikaree River?

The structure is 142 ft (43.2 m) long with a longest span of 68 ft (20.7 m) and a deck 34 ft wide.

Who owns County Road 43 over N Fork Arikaree River?

It is owned by the County Highway Agency.