US Bridges

SH 10 Ml over Cucharas River

Fair

Huerfano County, Colorado · 7 MI E of Walsenburg · Structure no. N-18-AC

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
253 ft
3 main spans
Daily traffic
390
2020 count
Owner
State
State Highway Agency

About this bridge

SH 10 Ml over Cucharas River is a prestressed concrete continuous box beam or girders - single or spread carrying SH 10 Ml over Cucharas River in Huerfano County, Colorado. It was built in 1984, so it is 41 years old, younger 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.

It carries about 390 vehicles a day, roughly 21% of them trucks, projected to reach 468 by 2040. The structure is 253 ft (77 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 10 Ml
CrossesCucharas River
Location7 MI E of Walsenburg
RouteState Highway 10A
Coordinates37.68079, -104.65277
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length253 ft (77 m)
Longest span84 ft (25.5 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2020)
Projected traffic468 by 2040
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 10 Ml over Cucharas River built?

It was built in 1984, making it 41 years old in 2025.

What condition is SH 10 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 February 2024.

How much traffic does SH 10 Ml over Cucharas River carry?

About 390 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is SH 10 Ml over Cucharas River?

The structure is 253 ft (77 m) long with a longest span of 84 ft (25.5 m) and a deck 36 ft wide.

Who owns SH 10 Ml over Cucharas River?

It is owned by the State Highway Agency.