US Bridges

County Road 30 over Arkansas River

Fair

Bent County, Colorado · 1 MI S of CR Jj · Structure no. BT30-31-30.8-51

Built
1970
55 years old, rebuilt 1991
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
121 ft
2 main spans
Daily traffic
73
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 30 over Arkansas River is a steel continuous stringer/multi-beam or girder carrying County Road 30 over Arkansas River in Bent County, Colorado. It was built in 1970 and reconstructed in 1991, so it is 55 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 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 73 vehicles a day, projected to reach 84 by 2042. The structure is 121 ft (36.8 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesCounty Road 30
CrossesArkansas River
Location1 MI S of CR Jj
RouteCounty Highway 0
CountyBent County
StateColorado
Coordinates38.08583, -102.85264
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length121 ft (36.8 m)
Longest span58 ft (17.7 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic73 (2022)
Projected traffic84 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 30 over Arkansas River built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1991.

What condition is County Road 30 over Arkansas 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 January 2024.

How much traffic does County Road 30 over Arkansas River carry?

About 73 vehicles per day (2022 count).

How long is County Road 30 over Arkansas River?

The structure is 121 ft (36.8 m) long with a longest span of 58 ft (17.7 m) and a deck 26 ft wide.

Who owns County Road 30 over Arkansas River?

It is owned by the County Highway Agency.