US Bridges

US 6 Ramp B over I 25 Ml

Good

Denver County, Colorado · N Side of I-25 Int Den. · Structure no. F-16-AZ

Built
2014
11 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
182 ft
2 main spans
Daily traffic
136,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 6 Ramp B over I 25 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying US 6 Ramp B over I 25 Ml in Denver County, Colorado. It was built in 2014, so it is 11 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 136,000 vehicles a day, roughly 2% of them trucks, projected to reach 149,600 by 2040. The structure is 182 ft (55.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 6 Ramp B
CrossesI 25 Ml
LocationN Side of I-25 Int Den.
RouteU.S. Route 6G
Coordinates39.7261, -105.01398
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length182 ft (55.6 m)
Longest span85 ft (25.9 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic136,000 (2020)
Projected traffic149,600 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 6 Ramp B over I 25 Ml built?

It was built in 2014, making it 11 years old in 2025.

What condition is US 6 Ramp B 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 November 2023.

How much traffic does US 6 Ramp B over I 25 Ml carry?

About 136,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is US 6 Ramp B over I 25 Ml?

The structure is 182 ft (55.6 m) long with a longest span of 85 ft (25.9 m) and a deck 28 ft wide.

Who owns US 6 Ramp B over I 25 Ml?

It is owned by the State Highway Agency.