US Bridges

I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch

Fair

Las Animas County, Colorado · In Trinidad · Structure no. P-18-BY

Built
2009
16 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
1,985 ft
14 main spans
Daily traffic
8,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch is a prestressed concrete continuous box beam or girders - single or spread carrying I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch in Las Animas County, Colorado. It was built in 2009, so it is 16 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 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 8,000 vehicles a day, roughly 13% of them trucks, projected to reach 10,000 by 2040. The structure is 1,985 ft (605.1 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml Nbnd
CrossesSH12 RR Cty Sts. Ditch
LocationIn Trinidad
RouteInterstate 25A
Coordinates37.16931, -104.51101
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.6 US tons
Inventory rating36.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans14
Design loadHL 93
Structure length1,985 ft (605.1 m)
Longest span252 ft (76.8 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2020)
Projected traffic10,000 by 2040
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway, waterway and railroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch built?

It was built in 2009, making it 16 years old in 2025.

What condition is I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch 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 December 2024.

How much traffic does I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch carry?

About 8,000 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch?

The structure is 1,985 ft (605.1 m) long with a longest span of 252 ft (76.8 m) and a deck 43 ft wide.

Who owns I 25 Ml Nbnd over SH12 RR Cty Sts. Ditch?

It is owned by the State Highway Agency.