US Bridges

I25 Ml Sbnd over Walsen Arroyo

Good

Huerfano County, Colorado · 1.7 MI S.Of Walsenburg Bu · Structure no. N-18-AA

Built
2001
24 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
209 ft
2 main spans
Daily traffic
5,500
2020 count
Owner
State
State Highway Agency

About this bridge

I25 Ml Sbnd over Walsen Arroyo is a prestressed concrete continuous stringer/multi-beam or girder carrying I25 Ml Sbnd over Walsen Arroyo in Huerfano County, Colorado. It was built in 2001, so it is 24 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 5,500 vehicles a day, roughly 17% of them trucks, projected to reach 7,205 by 2040. The structure is 209 ft (63.8 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI25 Ml Sbnd
CrossesWalsen Arroyo
Location1.7 MI S.Of Walsenburg Bu
RouteInterstate 25A
Coordinates37.59476, -104.74503
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length209 ft (63.8 m)
Longest span101 ft (30.9 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2020)
Projected traffic7,205 by 2040
Trucks17%
Lanes on structure2
Traffic directionOne-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 I25 Ml Sbnd over Walsen Arroyo built?

It was built in 2001, making it 24 years old in 2025.

What condition is I25 Ml Sbnd over Walsen 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 January 2025.

How much traffic does I25 Ml Sbnd over Walsen Arroyo carry?

About 5,500 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is I25 Ml Sbnd over Walsen Arroyo?

The structure is 209 ft (63.8 m) long with a longest span of 101 ft (30.9 m) and a deck 41 ft wide.

Who owns I25 Ml Sbnd over Walsen Arroyo?

It is owned by the State Highway Agency.