US Bridges

I 25 Ml Nbnd over Main Street

Good

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

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

About this bridge

I 25 Ml Nbnd over Main Street is a prestressed concrete box beam or girders - single or spread carrying I 25 Ml Nbnd over Main Street 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,000 vehicles a day, roughly 15% of them trucks, projected to reach 10,160 by 2040. The structure is 123 ft (37.4 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml Nbnd
CrossesMain Street
LocationIn Trinidad
RouteInterstate 25A
Coordinates37.16529, -104.51199
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81.5 US tons
Inventory rating62.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length123 ft (37.4 m)
Longest span118 ft (36 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 traffic10,160 by 2040
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 Main Street built?

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

What condition is I 25 Ml Nbnd over Main Street in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does I 25 Ml Nbnd over Main Street carry?

About 8,000 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is I 25 Ml Nbnd over Main Street?

The structure is 123 ft (37.4 m) long with a longest span of 118 ft (36 m) and a deck 43 ft wide.

Who owns I 25 Ml Nbnd over Main Street?

It is owned by the State Highway Agency.