US Bridges

I 25 Ml Hov Lanes over Ramps to I 25/ I 70

Good

Denver County, Colorado · In Denver · Structure no. E-16-GC

Built
1989
36 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
359 ft
3 main spans
Daily traffic
200,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Hov Lanes over Ramps to I 25/ I 70 is a steel continuous box beam or girders - multiple carrying I 25 Ml Hov Lanes over Ramps to I 25/ I 70 in Denver County, Colorado. It was built in 1989, so it is 36 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 200,000 vehicles a day, roughly 10% of them trucks, projected to reach 232,000 by 2040. The structure is 359 ft (109.5 m) long and 179 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml Hov Lanes
CrossesRamps to I 25/ I 70
LocationIn Denver
RouteInterstate 25A
Coordinates39.78054, -104.98907
Functional classUrban Principal Arterial - Interstate

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.2 US tons
Inventory rating39.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length359 ft (109.5 m)
Longest span118 ft (36 m)
Deck width179 ft (54.6 m)
Roadway width172 ft (52.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200,000 (2020)
Projected traffic232,000 by 2040
Trucks10%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 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 25 Ml Hov Lanes over Ramps to I 25/ I 70 built?

It was built in 1989, making it 36 years old in 2025.

What condition is I 25 Ml Hov Lanes over Ramps to I 25/ I 70 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 September 2023.

How much traffic does I 25 Ml Hov Lanes over Ramps to I 25/ I 70 carry?

About 200,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is I 25 Ml Hov Lanes over Ramps to I 25/ I 70?

The structure is 359 ft (109.5 m) long with a longest span of 118 ft (36 m) and a deck 179 ft wide.

Who owns I 25 Ml Hov Lanes over Ramps to I 25/ I 70?

It is owned by the State Highway Agency.