US Bridges

Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R

Good

Denver County, Colorado · 2.09 MI N of JCT US 285 · Structure no. F-16-PM

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
633 ft
6 main spans
Daily traffic
38,000
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R is a prestressed concrete continuous box beam or girders - multiple carrying Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R in Denver County, Colorado. It was built in 1986, so it is 39 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 633 ft (192.8 m) long and 23 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRamp to US 85 Nbnd
CrossesRamp to US 85 Nbnd[ne] R
Location2.09 MI N of JCT US 285
RouteU.S. Route 85B
Coordinates39.67859, -104.99308
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.9 US tons
Inventory rating23.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length633 ft (192.8 m)
Longest span128 ft (39 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,000 (2020)
Projected traffic45,980 by 2040
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesOther
Detour if closed0.6 mi (1 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 Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R built?

It was built in 1986, making it 39 years old in 2025.

What condition is Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R 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 October 2024.

How much traffic does Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R carry?

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

How long is Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R?

The structure is 633 ft (192.8 m) long with a longest span of 128 ft (39 m) and a deck 23 ft wide.

Who owns Ramp to US 85 Nbnd over Ramp to US 85 Nbnd[ne] R?

It is owned by the State Highway Agency.