US Bridges

County Road 10 over Tributary of Plum Creek

FairPosted for load

Baca County, Colorado · 1.7 MI N of CR Ss · Structure no. BA11-11-32.9-10

Built
1935
90 years old
Condition
Fair
inspected April 2024
Type
Arch - Deck
Masonry
Length
36 ft
3 main spans
Daily traffic
53
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 10 over Tributary of Plum Creek is a masonry arch - deck carrying County Road 10 over Tributary of Plum Creek in Baca County, Colorado. It was built in 1935, 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 6 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 53 vehicles a day, projected to reach 67 by 2042. The structure is 36 ft (11.1 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty Road 10
CrossesTributary of Plum Creek
Location1.7 MI N of CR Ss
RouteCounty Highway 0
CountyBaca County
StateColorado
Coordinates37.4801, -102.8928
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
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans3
Design loadUnknown
Structure length36 ft (11.1 m)
Longest span10 ft (3 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2022)
Projected traffic67 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 10 over Tributary of Plum Creek built?

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

What condition is County Road 10 over Tributary of Plum 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 10 over Tributary of Plum Creek carry?

About 53 vehicles per day (2022 count).

How long is County Road 10 over Tributary of Plum Creek?

The structure is 36 ft (11.1 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns County Road 10 over Tributary of Plum Creek?

It is owned by the County Highway Agency.