US Bridges

I25/CNTR Load Bus over Pedestrian Underpass

Good

Larimer County, Colorado · 1.0 MI N of JCT US 34 · Structure no. C-17-EPA

Built
2021
4 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
34,500
2011 count
Owner
State
State Highway Agency

About this bridge

I25/CNTR Load Bus over Pedestrian Underpass is a concrete culvert carrying I25/CNTR Load Bus over Pedestrian Underpass in Larimer 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 34,500 vehicles a day, roughly 11% of them trucks, projected to reach 52,440 by 2031. The structure is 20 ft (6.1 m) long and 287 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI25/CNTR Load Bus
CrossesPedestrian Underpass
Location1.0 MI N of JCT US 34
RouteInterstate 25A
Coordinates40.42104, -104.99222
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
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width287 ft (87.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,500 (2011)
Projected traffic52,440 by 2031
Trucks11%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesPedestrian / bicycle
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 I25/CNTR Load Bus over Pedestrian Underpass built?

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

What condition is I25/CNTR Load Bus over Pedestrian Underpass 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 I25/CNTR Load Bus over Pedestrian Underpass carry?

About 34,500 vehicles per day (2011 count), of which roughly 11% are trucks.

How long is I25/CNTR Load Bus over Pedestrian Underpass?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 287 ft wide.

Who owns I25/CNTR Load Bus over Pedestrian Underpass?

It is owned by the State Highway Agency.