US Bridges

I 225 Ml over 13th Ave Bike Path/Lrt

Fair

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

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete Continuous
Length
138 ft
3 main spans
Daily traffic
140,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 225 Ml over 13th Ave Bike Path/Lrt is a concrete continuous tee beam carrying I 225 Ml over 13th Ave Bike Path/Lrt in Arapahoe County, Colorado. It was built in 1986, so it is 39 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 140,000 vehicles a day, roughly 7% of them trucks, projected to reach 176,400 by 2040. The structure is 138 ft (42.2 m) long and 160 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI 225 Ml
Crosses13th Ave Bike Path/Lrt
LocationIn Aurora
RouteInterstate 225A
Coordinates39.73593, -104.82508
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.8 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length138 ft (42.2 m)
Longest span63 ft (19.1 m)
Deck width160 ft (48.8 m)
Roadway width76 ft (23.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140,000 (2020)
Projected traffic176,400 by 2040
Trucks7%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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 over 13th Ave Bike Path/Lrt built?

It was built in 1986, making it 39 years old in 2025.

What condition is I 225 Ml over 13th Ave Bike Path/Lrt 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 225 Ml over 13th Ave Bike Path/Lrt carry?

About 140,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I 225 Ml over 13th Ave Bike Path/Lrt?

The structure is 138 ft (42.2 m) long with a longest span of 63 ft (19.1 m) and a deck 160 ft wide.

Who owns I 225 Ml over 13th Ave Bike Path/Lrt?

It is owned by the State Highway Agency.