US Bridges

I 25 Nbnd Ramp over I 25 Ml

Good

Douglas County, Colorado · 0.5 MI N of JCT SH 18 Ml · Structure no. H-17-CY

Built
2021
4 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
250 ft
2 main spans
Daily traffic
1,128
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Nbnd Ramp over I 25 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying I 25 Nbnd Ramp over I 25 Ml in Douglas County, Colorado. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,128 vehicles a day, roughly 13% of them trucks, projected to reach 2,927 by 2033. The structure is 250 ft (76.2 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesI 25 Nbnd Ramp
CrossesI 25 Ml
Location0.5 MI N of JCT SH 18 Ml
RouteInterstate 25A
Coordinates39.24823, -104.88398
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 rating49.8 US tons
Inventory rating29.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length250 ft (76.2 m)
Longest span118 ft (36.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,128 (2020)
Projected traffic2,927 by 2033
Trucks13%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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 Nbnd Ramp over I 25 Ml built?

It was built in 2021, making it 4 years old in 2025.

What condition is I 25 Nbnd Ramp 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 May 2023.

How much traffic does I 25 Nbnd Ramp over I 25 Ml carry?

About 1,128 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is I 25 Nbnd Ramp over I 25 Ml?

The structure is 250 ft (76.2 m) long with a longest span of 118 ft (36.1 m) and a deck 33 ft wide.

Who owns I 25 Nbnd Ramp over I 25 Ml?

It is owned by the State Highway Agency.