US Bridges

SB I-25 Offramp over Lrt

Good

Denver County, Colorado · I-25/EVANS in Denver · Structure no. F-17-OE

Built
2006
19 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
144 ft
1 main span
Daily traffic
101,000
2020 count
Owner
State
State Highway Agency

About this bridge

SB I-25 Offramp over Lrt is a prestressed concrete stringer/multi-beam or girder carrying SB I-25 Offramp over Lrt in Denver County, Colorado. It was built in 2006, so it is 19 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 101,000 vehicles a day, roughly 6% of them trucks, projected to reach 124,230 by 2040. The structure is 144 ft (44 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSB I-25 Offramp
CrossesLrt
LocationI-25/EVANS in Denver
RouteInterstate 25A
Coordinates39.67884, -104.93467
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating45.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length144 ft (44 m)
Longest span137 ft (41.8 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101,000 (2020)
Projected traffic124,230 by 2040
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 SB I-25 Offramp over Lrt built?

It was built in 2006, making it 19 years old in 2025.

What condition is SB I-25 Offramp over Lrt 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 March 2024.

How much traffic does SB I-25 Offramp over Lrt carry?

About 101,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SB I-25 Offramp over Lrt?

The structure is 144 ft (44 m) long with a longest span of 137 ft (41.8 m) and a deck 40 ft wide.

Who owns SB I-25 Offramp over Lrt?

It is owned by the State Highway Agency.