US Bridges

Ramp to I 25 Nbnd over Interchange Row R

Fair

Denver County, Colorado · JCT I-25 at 6th Ave in De · Structure no. F-16-NO

Built
1989
36 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
664 ft
5 main spans
Daily traffic
107,500
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp to I 25 Nbnd over Interchange Row R is a prestressed concrete continuous box beam or girders - multiple carrying Ramp to I 25 Nbnd over Interchange Row R in Denver County, Colorado. It was built in 1989, so it is 36 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 107,500 vehicles a day, roughly 6% of them trucks, projected to reach 123,625 by 2040. The structure is 664 ft (202.4 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRamp to I 25 Nbnd
CrossesInterchange Row R
LocationJCT I-25 at 6th Ave in De
RouteInterstate 25A
CountyDenver County
StateColorado
Coordinates39.72642, -105.01128
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionApril 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 rating110.1 US tons
Inventory rating87.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length664 ft (202.4 m)
Longest span149 ft (45.5 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107,500 (2020)
Projected traffic123,625 by 2040
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 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 Ramp to I 25 Nbnd over Interchange Row R built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ramp to I 25 Nbnd over Interchange Row R 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 April 2023.

How much traffic does Ramp to I 25 Nbnd over Interchange Row R carry?

About 107,500 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Ramp to I 25 Nbnd over Interchange Row R?

The structure is 664 ft (202.4 m) long with a longest span of 149 ft (45.5 m) and a deck 30 ft wide.

Who owns Ramp to I 25 Nbnd over Interchange Row R?

It is owned by the State Highway Agency.