US Bridges

I 25 Ml Nbnd over RR Spur

Good

Larimer County, Colorado · 1.1 MI N of JCT SH 68 · Structure no. B-17-DW

Built
2022
3 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
273 ft
3 main spans
Daily traffic
24,500
2011 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Nbnd over RR Spur is a prestressed concrete continuous box beam or girders - single or spread carrying I 25 Ml Nbnd over RR Spur in Larimer County, Colorado. It was built in 2022, so it is 3 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 24,500 vehicles a day, roughly 11% of them trucks, projected to reach 37,485 by 2031. The structure is 273 ft (83.3 m) long and 73 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml Nbnd
CrossesRR Spur
Location1.1 MI N of JCT SH 68
RouteInterstate 25A
Coordinates40.53856, -104.99512
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.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length273 ft (83.3 m)
Longest span93 ft (28.3 m)
Deck width73 ft (22.3 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,500 (2011)
Projected traffic37,485 by 2031
Trucks11%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 Nbnd over RR Spur built?

It was built in 2022, making it 3 years old in 2025.

What condition is I 25 Ml Nbnd over RR Spur 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 Nbnd over RR Spur carry?

About 24,500 vehicles per day (2011 count), of which roughly 11% are trucks.

How long is I 25 Ml Nbnd over RR Spur?

The structure is 273 ft (83.3 m) long with a longest span of 93 ft (28.3 m) and a deck 73 ft wide.

Who owns I 25 Ml Nbnd over RR Spur?

It is owned by the State Highway Agency.