US Bridges

County Road 22.4 over Culebra Creek

Fair

Costilla County, Colorado · Between CRL.7 and M.5 · Structure no. CS152E-0.1-152A

Built
1990
35 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
19
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 22.4 over Culebra Creek is a steel stringer/multi-beam or girder carrying County Road 22.4 over Culebra Creek in Costilla County, Colorado. It was built in 1990, so it is 35 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 19 vehicles a day, projected to reach 22 by 2042. The structure is 52 ft (16 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 22.4
CrossesCulebra Creek
LocationBetween CRL.7 and M.5
RouteCounty Highway 0
CountyCostilla County
StateColorado
Coordinates37.16337, -105.37031
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating67.7 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (16 m)
Longest span48 ft (14.5 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19 (2022)
Projected traffic22 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 22.4 over Culebra Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is County Road 22.4 over Culebra Creek 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 March 2025.

How much traffic does County Road 22.4 over Culebra Creek carry?

About 19 vehicles per day (2022 count).

How long is County Road 22.4 over Culebra Creek?

The structure is 52 ft (16 m) long with a longest span of 48 ft (14.5 m) and a deck 27 ft wide.

Who owns County Road 22.4 over Culebra Creek?

It is owned by the County Highway Agency.