US Bridges

Auraria Pkwy Ramp over I25 Ramps and Walnut

Fair

Denver County, Colorado · Ramp over I25 to SB I25 · Structure no. F-16-NX

Built
1987
38 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
587 ft
4 main spans
Daily traffic
15,048
2024 count
Owner
State
State Highway Agency

About this bridge

Auraria Pkwy Ramp over I25 Ramps and Walnut is a steel continuous stringer/multi-beam or girder carrying Auraria Pkwy Ramp over I25 Ramps and Walnut in Denver County, Colorado. It was built in 1987, so it is 38 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15,048 vehicles a day, roughly 7% of them trucks, projected to reach 16,703 by 2044. The structure is 587 ft (178.9 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAuraria Pkwy Ramp
CrossesI25 Ramps and Walnut
LocationRamp over I25 to SB I25
RouteCity Street 0
CountyDenver County
StateColorado
Coordinates39.741, -105.01477
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating32.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length587 ft (178.9 m)
Longest span205 ft (62.5 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,048 (2024)
Projected traffic16,703 by 2044
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed1.9 mi (3 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 Auraria Pkwy Ramp over I25 Ramps and Walnut built?

It was built in 1987, making it 38 years old in 2025.

What condition is Auraria Pkwy Ramp over I25 Ramps and Walnut in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Auraria Pkwy Ramp over I25 Ramps and Walnut carry?

About 15,048 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Auraria Pkwy Ramp over I25 Ramps and Walnut?

The structure is 587 ft (178.9 m) long with a longest span of 205 ft (62.5 m) and a deck 38 ft wide.

Who owns Auraria Pkwy Ramp over I25 Ramps and Walnut?

It is owned by the State Highway Agency.