US Bridges

Ramp/Washington ST over Ramp to SB I-25 R

Good

Denver County, Colorado · Mousetrap in Denver · Structure no. E-17-PP

Built
1993
32 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
239 ft
2 main spans
Daily traffic
121,000
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp/Washington ST over Ramp to SB I-25 R is a steel continuous box beam or girders - single or spread carrying Ramp/Washington ST over Ramp to SB I-25 R in Denver County, Colorado. It was built in 1993, so it is 32 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 121,000 vehicles a day, roughly 7% of them trucks, projected to reach 141,570 by 2040. The structure is 239 ft (72.8 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRamp/Washington ST
CrossesRamp to SB I-25 R
LocationMousetrap in Denver
RouteInterstate 70A
Coordinates39.77922, -104.99111
Functional classUrban Principal Arterial - Interstate

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.1 US tons
Inventory rating16.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length239 ft (72.8 m)
Longest span134 ft (40.9 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic121,000 (2020)
Projected traffic141,570 by 2040
Trucks7%
Lanes on structure1
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 Ramp/Washington ST over Ramp to SB I-25 R built?

It was built in 1993, making it 32 years old in 2025.

What condition is Ramp/Washington ST over Ramp to SB I-25 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 February 2024.

How much traffic does Ramp/Washington ST over Ramp to SB I-25 R carry?

About 121,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Ramp/Washington ST over Ramp to SB I-25 R?

The structure is 239 ft (72.8 m) long with a longest span of 134 ft (40.9 m) and a deck 31 ft wide.

Who owns Ramp/Washington ST over Ramp to SB I-25 R?

It is owned by the State Highway Agency.