US Bridges

I 225 Ml Nbnd over Pedestrian Underpass

Fair

Arapahoe County, Colorado · In Aurora · Structure no. F-17-KU

Built
2003
22 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
68,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 225 Ml Nbnd over Pedestrian Underpass is a prestressed concrete box beam or girders - multiple carrying I 225 Ml Nbnd over Pedestrian Underpass in Arapahoe County, Colorado. It was built in 2003, so it is 22 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 68,000 vehicles a day, roughly 6% of them trucks, projected to reach 84,320 by 2040. The structure is 82 ft (25 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 225 Ml Nbnd
CrossesPedestrian Underpass
LocationIn Aurora
RouteInterstate 225A
Coordinates39.65715, -104.84526
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating43.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length82 ft (25 m)
Longest span79 ft (24.1 m)
Deck width63 ft (19.2 m)
Roadway width61 ft (18.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68,000 (2020)
Projected traffic84,320 by 2040
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed1.2 mi (2 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 225 Ml Nbnd over Pedestrian Underpass built?

It was built in 2003, making it 22 years old in 2025.

What condition is I 225 Ml Nbnd over Pedestrian Underpass 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 May 2023.

How much traffic does I 225 Ml Nbnd over Pedestrian Underpass carry?

About 68,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is I 225 Ml Nbnd over Pedestrian Underpass?

The structure is 82 ft (25 m) long with a longest span of 79 ft (24.1 m) and a deck 63 ft wide.

Who owns I 225 Ml Nbnd over Pedestrian Underpass?

It is owned by the State Highway Agency.