US Bridges

US 285 Ml over I 25 Ml

Good

Denver County, Colorado · In Denver · Structure no. F-17-OT

Built
2006
19 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
160 ft
2 main spans
Daily traffic
49,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 285 Ml over I 25 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying US 285 Ml over I 25 Ml in Denver County, Colorado. It was built in 2006, so it is 19 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 49,000 vehicles a day, roughly 3% of them trucks, projected to reach 52,920 by 2040. The structure is 160 ft (48.9 m) long and 154 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 285 Ml
CrossesI 25 Ml
LocationIn Denver
RouteU.S. Route 285D
Coordinates39.65289, -104.91887
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.4 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHS 25 or greater
Structure length160 ft (48.9 m)
Longest span79 ft (24 m)
Deck width154 ft (46.9 m)
Roadway width126 ft (38.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,000 (2020)
Projected traffic52,920 by 2040
Trucks3%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 285 Ml over I 25 Ml built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 285 Ml over I 25 Ml in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does US 285 Ml over I 25 Ml carry?

About 49,000 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is US 285 Ml over I 25 Ml?

The structure is 160 ft (48.9 m) long with a longest span of 79 ft (24 m) and a deck 154 ft wide.

Who owns US 285 Ml over I 25 Ml?

It is owned by the State Highway Agency.