US Bridges

County Road Q over West Carrizo Creek

FairPosted for load

Baca County, Colorado · 1.2 MI E of CR 0 · Structure no. BAP-1.2-13-41

Built
1935
90 years old, rebuilt 1960
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
23
2022 count
Owner
County
County Highway Agency

About this bridge

County Road Q over West Carrizo Creek is a steel stringer/multi-beam or girder carrying County Road Q over West Carrizo Creek in Baca County, Colorado. It was built in 1935 and reconstructed in 1960, 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 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. Its operating status is: posted for load restriction.

It carries about 23 vehicles a day, projected to reach 30 by 2042. The structure is 40 ft (12.3 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty Road Q
CrossesWest Carrizo Creek
Location1.2 MI E of CR 0
RouteCounty Highway 0
Coordinates37.19095, -103.06517
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.8 US tons
Inventory rating11.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span37 ft (11.2 m)
Deck width26 ft (8 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2022)
Projected traffic30 by 2042
Trucks0%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$893,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road Q over West Carrizo Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1960.

What condition is County Road Q over West Carrizo 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 April 2024.

How much traffic does County Road Q over West Carrizo Creek carry?

About 23 vehicles per day (2022 count).

How long is County Road Q over West Carrizo Creek?

The structure is 40 ft (12.3 m) long with a longest span of 37 ft (11.2 m) and a deck 26 ft wide.

Who owns County Road Q over West Carrizo Creek?

It is owned by the County Highway Agency.