US Bridges

I 25 Ml over Arkansas River

Fair

Pueblo County, Colorado · In Pueblo · Structure no. K-18-AJ

Built
1958
67 years old
Condition
Fair
inspected December 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
335 ft
2 main spans
Daily traffic
51,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml over Arkansas River is a steel continuous girder and floorbeam system carrying I 25 Ml over Arkansas River in Pueblo County, Colorado. It was built in 1958, so it is 67 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 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 51,000 vehicles a day, roughly 6% of them trucks, projected to reach 60,180 by 2040. The structure is 335 ft (102 m) long and 88 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml
CrossesArkansas River
LocationIn Pueblo
RouteInterstate 25A
Coordinates38.25456, -104.60812
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.5 US tons
Inventory rating21.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length335 ft (102 m)
Longest span165 ft (50.3 m)
Deck width88 ft (26.8 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,000 (2020)
Projected traffic60,180 by 2040
Trucks6%
Lanes on structure5
Traffic directionTwo-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 statusEligible 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 over Arkansas River built?

It was built in 1958, making it 67 years old in 2025.

What condition is I 25 Ml over Arkansas 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 December 2024.

How much traffic does I 25 Ml over Arkansas River carry?

About 51,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is I 25 Ml over Arkansas River?

The structure is 335 ft (102 m) long with a longest span of 165 ft (50.3 m) and a deck 88 ft wide.

Who owns I 25 Ml over Arkansas River?

It is owned by the State Highway Agency.