US Bridges

County RD 24.6 over Gray Creek

Fair

Las Animas County, Colorado · 2.5 MI W of CR 81.5 · Structure no. LA24.6-40-12-63

Built
1937
88 years old, rebuilt 1960
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
112
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 24.6 over Gray Creek is a steel stringer/multi-beam or girder carrying County RD 24.6 over Gray Creek in Las Animas County, Colorado. It was built in 1937 and reconstructed in 1960, so it is 88 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 112 vehicles a day, roughly 2% of them trucks, projected to reach 138 by 2042. The structure is 37 ft (11.3 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty RD 24.6
CrossesGray Creek
Location2.5 MI W of CR 81.5
RouteCounty Highway 0
Coordinates37.15826, -104.42646
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJune 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 rating47 US tons
Inventory rating28.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span30 ft (9.2 m)
Deck width33 ft (10 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112 (2022)
Projected traffic138 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 24.6 over Gray Creek built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1960.

What condition is County RD 24.6 over Gray 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 June 2023.

How much traffic does County RD 24.6 over Gray Creek carry?

About 112 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County RD 24.6 over Gray Creek?

The structure is 37 ft (11.3 m) long with a longest span of 30 ft (9.2 m) and a deck 33 ft wide.

Who owns County RD 24.6 over Gray Creek?

It is owned by the County Highway Agency.