US Bridges

I 25 Ml over Dirty Woman Creek

Fair

El Paso County, Colorado · Just South of SH 105 · Structure no. H-17-CA

Built
1958
67 years old, rebuilt 2003
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
67,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml over Dirty Woman Creek is a concrete culvert carrying I 25 Ml over Dirty Woman Creek in El Paso County, Colorado. It was built in 1958 and reconstructed in 2003, so it is 67 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 67,000 vehicles a day, roughly 6% of them trucks, projected to reach 98,490 by 2040. The structure is 20 ft (6.2 m) long and 335 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesI 25 Ml
CrossesDirty Woman Creek
LocationJust South of SH 105
RouteInterstate 25A
Coordinates39.08962, -104.86181
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating93 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span10 ft (3.2 m)
Deck width335 ft (102.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,000 (2020)
Projected traffic98,490 by 2040
Trucks6%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 over Dirty Woman Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2003.

What condition is I 25 Ml over Dirty Woman Creek 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 February 2025.

How much traffic does I 25 Ml over Dirty Woman Creek carry?

About 67,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is I 25 Ml over Dirty Woman Creek?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3.2 m) and a deck 335 ft wide.

Who owns I 25 Ml over Dirty Woman Creek?

It is owned by the State Highway Agency.