US Bridges

County Road 185.0 over Trib. West Carrizo Creek

Poor

Las Animas County, Colorado · 5.8 MI S of SH 160 · Structure no. LA185-93-10-107

Built
1935
90 years old, rebuilt 1950
Condition
Poor
inspected June 2023
Type
Girder and Floorbeam System
Steel
Length
30 ft
1 main span
Daily traffic
18
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 185.0 over Trib. West Carrizo Creek is a steel girder and floorbeam system carrying County Road 185.0 over Trib. West Carrizo Creek in Las Animas County, Colorado. It was built in 1935 and reconstructed in 1950, so it is 90 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: open, posting recommended but not legally implemented.

It carries about 18 vehicles a day, projected to reach 22 by 2042. The structure is 30 ft (9.1 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 185.0
CrossesTrib. West Carrizo Creek
Location5.8 MI S of SH 160
RouteCounty Highway 0
CountyLas Animas County
StateColorado
Coordinates37.13835, -103.46281
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
Deck8 Very GoodNo problems noted.
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 statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating9.4 US tons
Inventory rating6.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span25 ft (7.7 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2022)
Projected traffic22 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$347,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 185.0 over Trib. West Carrizo Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1950.

What condition is County Road 185.0 over Trib. 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 Road 185.0 over Trib. West Carrizo Creek carry?

About 18 vehicles per day (2022 count).

How long is County Road 185.0 over Trib. West Carrizo Creek?

The structure is 30 ft (9.1 m) long with a longest span of 25 ft (7.7 m) and a deck 16 ft wide.

Who owns County Road 185.0 over Trib. West Carrizo Creek?

It is owned by the County Highway Agency.