US Bridges

I 25 Frontage RD over Walsen Arroyo SR

Fair

Huerfano County, Colorado · 2.8 MI S of SH10-WLSNBRG. · Structure no. N-18-X

Built
1969
56 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
72
2022 count
Owner
State
State Highway Agency

About this bridge

I 25 Frontage RD over Walsen Arroyo SR is a concrete continuous tee beam carrying I 25 Frontage RD over Walsen Arroyo SR in Huerfano County, Colorado. It was built in 1969, so it is 56 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 72 vehicles a day, projected to reach 85 by 2042. The structure is 135 ft (41 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 25 Frontage RD
CrossesWalsen Arroyo SR
Location2.8 MI S of SH10-WLSNBRG.
RouteInterstate 25A
CountyHuerfano County
StateColorado
Coordinates37.59504, -104.7445
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.4 US tons
Inventory rating29 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length135 ft (41 m)
Longest span52 ft (15.8 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72 (2022)
Projected traffic85 by 2042
Trucks0%
Lanes on structure2
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 Frontage RD over Walsen Arroyo SR built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 25 Frontage RD over Walsen Arroyo SR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does I 25 Frontage RD over Walsen Arroyo SR carry?

About 72 vehicles per day (2022 count).

How long is I 25 Frontage RD over Walsen Arroyo SR?

The structure is 135 ft (41 m) long with a longest span of 52 ft (15.8 m) and a deck 29 ft wide.

Who owns I 25 Frontage RD over Walsen Arroyo SR?

It is owned by the State Highway Agency.