US Bridges

County RD 38.0 over Duran Arroyo

Fair

Las Animas County, Colorado · 400 Feet E of CR 85 · Structure no. LA38-43-19-55

Built
1926
99 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
36
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 38.0 over Duran Arroyo is a concrete continuous slab carrying County RD 38.0 over Duran Arroyo in Las Animas County, Colorado. It was built in 1926, so it is 99 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.

It carries about 36 vehicles a day, projected to reach 44 by 2042. The structure is 26 ft (8 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty RD 38.0
CrossesDuran Arroyo
Location400 Feet E of CR 85
RouteCounty Highway 0
CountyLas Animas County
StateColorado
Coordinates37.26335, -104.37304
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length26 ft (8 m)
Longest span12 ft (3.7 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2022)
Projected traffic44 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 38.0 over Duran Arroyo built?

It was built in 1926, making it 99 years old in 2025.

What condition is County RD 38.0 over Duran Arroyo 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 June 2023.

How much traffic does County RD 38.0 over Duran Arroyo carry?

About 36 vehicles per day (2022 count).

How long is County RD 38.0 over Duran Arroyo?

The structure is 26 ft (8 m) long with a longest span of 12 ft (3.7 m) and a deck 21 ft wide.

Who owns County RD 38.0 over Duran Arroyo?

It is owned by the County Highway Agency.