US Bridges

I 25 Ml Nbnd over Huerfano River

Fair

Huerfano County, Colorado · 9.4 MI N of JCT US 160+SH · Structure no. N-17-BP

Built
1982
43 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
231 ft
2 main spans
Daily traffic
7,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Nbnd over Huerfano River is a steel continuous stringer/multi-beam or girder carrying I 25 Ml Nbnd over Huerfano River in Huerfano County, Colorado. It was built in 1982, so it is 43 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 7,000 vehicles a day, roughly 15% of them trucks, projected to reach 9,030 by 2040. The structure is 231 ft (70.3 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml Nbnd
CrossesHuerfano River
Location9.4 MI N of JCT US 160+SH
RouteInterstate 25A
Coordinates37.75465, -104.83554
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length231 ft (70.3 m)
Longest span114 ft (34.8 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2020)
Projected traffic9,030 by 2040
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 Huerfano River built?

It was built in 1982, making it 43 years old in 2025.

What condition is I 25 Ml Nbnd over Huerfano 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 January 2025.

How much traffic does I 25 Ml Nbnd over Huerfano River carry?

About 7,000 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is I 25 Ml Nbnd over Huerfano River?

The structure is 231 ft (70.3 m) long with a longest span of 114 ft (34.8 m) and a deck 40 ft wide.

Who owns I 25 Ml Nbnd over Huerfano River?

It is owned by the State Highway Agency.