US Bridges

County RD 185.0 over West Carrizo Creek

PoorPosted for load

Las Animas County, Colorado · 5 MI S of SH 160 · Structure no. LA185-93-11-106

Built
1939
86 years old, rebuilt 1994
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
17
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 185.0 over West Carrizo Creek is a steel stringer/multi-beam or girder carrying County RD 185.0 over West Carrizo Creek in Las Animas County, Colorado. It was built in 1939 and reconstructed in 1994, so it is 86 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 17 vehicles a day, projected to reach 21 by 2042. The structure is 30 ft (9.1 m) long and 17 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty RD 185.0
CrossesWest Carrizo Creek
Location5 MI S of SH 160
RouteCounty Highway 0
CountyLas Animas County
StateColorado
Coordinates37.14734, -103.46301
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.1 US tons
Inventory rating12 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17 (2022)
Projected traffic21 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$386,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 185.0 over West Carrizo Creek built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1994.

What condition is County RD 185.0 over West Carrizo Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does County RD 185.0 over West Carrizo Creek carry?

About 17 vehicles per day (2022 count).

How long is County RD 185.0 over West Carrizo Creek?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 17 ft wide.

Who owns County RD 185.0 over West Carrizo Creek?

It is owned by the County Highway Agency.