US Bridges

I 25 Ml Nbnd over Af Academy (north Gate)

Fair

El Paso County, Colorado · 5.6 MI N of JCT SH 83 Ml · Structure no. H-17-BD

Built
1958
67 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
189 ft
2 main spans
Daily traffic
46,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Nbnd over Af Academy (north Gate) is a prestressed concrete stringer/multi-beam or girder carrying I 25 Ml Nbnd over Af Academy (north Gate) in El Paso 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 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 46,000 vehicles a day, roughly 10% of them trucks, projected to reach 66,240 by 2040. The structure is 189 ft (57.5 m) long and 58 ft wide.

CarriesI 25 Ml Nbnd
CrossesAf Academy (north Gate)
Location5.6 MI N of JCT SH 83 Ml
RouteInterstate 25A
Coordinates39.02617, -104.83301
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating15.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length189 ft (57.5 m)
Longest span92 ft (28 m)
Deck width58 ft (17.7 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,000 (2020)
Projected traffic66,240 by 2040
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$591,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I 25 Ml Nbnd over Af Academy (north Gate) built?

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

What condition is I 25 Ml Nbnd over Af Academy (north Gate) 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 2025.

How much traffic does I 25 Ml Nbnd over Af Academy (north Gate) carry?

About 46,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is I 25 Ml Nbnd over Af Academy (north Gate)?

The structure is 189 ft (57.5 m) long with a longest span of 92 ft (28 m) and a deck 58 ft wide.

Who owns I 25 Ml Nbnd over Af Academy (north Gate)?

It is owned by the State Highway Agency.