US Bridges

85 NB Rmp to I25 N over I25ML US 85ML Rmps

Good

Denver County, Colorado · In Denver · Structure no. F-16-XR

Built
2013
12 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
1,754 ft
11 main spans
Daily traffic
38,000
2020 count
Owner
State
State Highway Agency

About this bridge

85 NB Rmp to I25 N over I25ML US 85ML Rmps is a prestressed concrete continuous box beam or girders - single or spread carrying 85 NB Rmp to I25 N over I25ML US 85ML Rmps in Denver County, Colorado. It was built in 2013, so it is 12 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 38,000 vehicles a day, roughly 8% of them trucks, projected to reach 45,980 by 2040. The structure is 1,754 ft (534.6 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries85 NB Rmp to I25 N
CrossesI25ML US 85ML Rmps
LocationIn Denver
RouteInterstate 85B
Coordinates39.70347, -104.99478
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 inspectionJune 2024
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 rating59.3 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans11
Design loadHL 93
Structure length1,754 ft (534.6 m)
Longest span193 ft (58.9 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,000 (2020)
Projected traffic45,980 by 2040
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 85 NB Rmp to I25 N over I25ML US 85ML Rmps built?

It was built in 2013, making it 12 years old in 2025.

What condition is 85 NB Rmp to I25 N over I25ML US 85ML Rmps 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 June 2024.

How much traffic does 85 NB Rmp to I25 N over I25ML US 85ML Rmps carry?

About 38,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is 85 NB Rmp to I25 N over I25ML US 85ML Rmps?

The structure is 1,754 ft (534.6 m) long with a longest span of 193 ft (58.9 m) and a deck 39 ft wide.

Who owns 85 NB Rmp to I25 N over I25ML US 85ML Rmps?

It is owned by the State Highway Agency.