US Bridges

I 25 Ml over Rdwy RR South Platte Rvr

Good

Denver County, Colorado · In Denver · Structure no. F-16-XB

Built
2011
14 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
371 ft
5 main spans
Daily traffic
212,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml over Rdwy RR South Platte Rvr is a prestressed concrete continuous box beam or girders - single or spread carrying I 25 Ml over Rdwy RR South Platte Rvr in Denver County, Colorado. It was built in 2011, so it is 14 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 212,000 vehicles a day, roughly 7% of them trucks, projected to reach 248,040 by 2040. The structure is 371 ft (113.1 m) long and 197 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesI 25 Ml
CrossesRdwy RR South Platte Rvr
LocationIn Denver
RouteInterstate 25A
Coordinates39.74291, -105.01509
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating39.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans5
Design loadUnknown
Structure length371 ft (113.1 m)
Longest span125 ft (38.1 m)
Deck width197 ft (60 m)
Roadway width192 ft (58.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic212,000 (2020)
Projected traffic248,040 by 2040
Trucks7%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed3.1 mi (5 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 I 25 Ml over Rdwy RR South Platte Rvr built?

It was built in 2011, making it 14 years old in 2025.

What condition is I 25 Ml over Rdwy RR South Platte Rvr 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 November 2023.

How much traffic does I 25 Ml over Rdwy RR South Platte Rvr carry?

About 212,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I 25 Ml over Rdwy RR South Platte Rvr?

The structure is 371 ft (113.1 m) long with a longest span of 125 ft (38.1 m) and a deck 197 ft wide.

Who owns I 25 Ml over Rdwy RR South Platte Rvr?

It is owned by the State Highway Agency.