US Bridges

I 25 Ml over East Plum Creek

Good

Douglas County, Colorado · 1.3 MI N of Larkspur · Structure no. H-17-CX

Built
2021
4 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
323 ft
3 main spans
Daily traffic
75,000
2018 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml over East Plum Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I 25 Ml over East Plum Creek in Douglas County, Colorado. It was built in 2021, so it is 4 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 75,000 vehicles a day, roughly 10% of them trucks, projected to reach 84,760 by 2031. The structure is 323 ft (98.6 m) long and 147 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml
CrossesEast Plum Creek
Location1.3 MI N of Larkspur
RouteInterstate 25A
Coordinates39.24778, -104.88287
Functional classRural 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 inspectionMay 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 rating89.9 US tons
Inventory rating69.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length323 ft (98.6 m)
Longest span126 ft (38.3 m)
Deck width147 ft (44.8 m)
Roadway width142 ft (43.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,000 (2018)
Projected traffic84,760 by 2031
Trucks10%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 I 25 Ml over East Plum Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is I 25 Ml over East Plum Creek 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 May 2023.

How much traffic does I 25 Ml over East Plum Creek carry?

About 75,000 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is I 25 Ml over East Plum Creek?

The structure is 323 ft (98.6 m) long with a longest span of 126 ft (38.3 m) and a deck 147 ft wide.

Who owns I 25 Ml over East Plum Creek?

It is owned by the State Highway Agency.