US Bridges

I-25 NB Ml over Greasewood Arroyo

Good

Huerfano County, Colorado · 11.7 Miles North of Walse · Structure no. M-17-BF

Built
2004
21 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
109 ft
1 main span
Daily traffic
7,000
2020 count
Owner
State
State Highway Agency

About this bridge

I-25 NB Ml over Greasewood Arroyo is a prestressed concrete box beam or girders - multiple carrying I-25 NB Ml over Greasewood Arroyo in Huerfano County, Colorado. It was built in 2004, so it is 21 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 7,000 vehicles a day, roughly 15% of them trucks, projected to reach 9,030 by 2040. The structure is 109 ft (33.1 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-25 NB Ml
CrossesGreasewood Arroyo
Location11.7 Miles North of Walse
RouteInterstate 25A
Coordinates37.78851, -104.83105
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length109 ft (33.1 m)
Longest span106 ft (32.3 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2020)
Projected traffic9,030 by 2040
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 I-25 NB Ml over Greasewood Arroyo built?

It was built in 2004, making it 21 years old in 2025.

What condition is I-25 NB Ml over Greasewood Arroyo 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 February 2025.

How much traffic does I-25 NB Ml over Greasewood Arroyo carry?

About 7,000 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is I-25 NB Ml over Greasewood Arroyo?

The structure is 109 ft (33.1 m) long with a longest span of 106 ft (32.3 m) and a deck 41 ft wide.

Who owns I-25 NB Ml over Greasewood Arroyo?

It is owned by the State Highway Agency.