US Bridges

SH 12 Ml over Cucharas River

Fair

Huerfano County, Colorado · 4 MI S of JCT US 160 · Structure no. N-16-O

Built
1947
78 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
2 main spans
Daily traffic
1,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 12 Ml over Cucharas River is a steel stringer/multi-beam or girder carrying SH 12 Ml over Cucharas River in Huerfano County, Colorado. It was built in 1947, so it is 78 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.

It carries about 1,300 vehicles a day, roughly 3% of them trucks, projected to reach 1,534 by 2040. The structure is 83 ft (25.4 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 12 Ml
CrossesCucharas River
Location4 MI S of JCT US 160
RouteState Highway 12A
Coordinates37.51787, -105.00891
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.7 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length83 ft (25.4 m)
Longest span39 ft (11.9 m)
Deck width31 ft (9.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2020)
Projected traffic1,534 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 12 Ml over Cucharas River built?

It was built in 1947, making it 78 years old in 2025.

What condition is SH 12 Ml over Cucharas River 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 September 2024.

How much traffic does SH 12 Ml over Cucharas River carry?

About 1,300 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is SH 12 Ml over Cucharas River?

The structure is 83 ft (25.4 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.

Who owns SH 12 Ml over Cucharas River?

It is owned by the State Highway Agency.