US Bridges

I 25 Ml Nbnd over Young Hollow

Fair

Pueblo County, Colorado · 12.8 MI N of JCT US 50 W · Structure no. K-18-CD

Built
1958
67 years old, rebuilt 1998
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
154 ft
3 main spans
Daily traffic
17,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Nbnd over Young Hollow is a concrete tee beam carrying I 25 Ml Nbnd over Young Hollow in Pueblo County, Colorado. It was built in 1958 and reconstructed in 1998, 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 17,500 vehicles a day, roughly 10% of them trucks, projected to reach 23,450 by 2040. The structure is 154 ft (46.9 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml Nbnd
CrossesYoung Hollow
Location12.8 MI N of JCT US 50 W
RouteInterstate 25A
Coordinates38.48822, -104.62085
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.4 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckOther
Main spans3
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span50 ft (15.2 m)
Deck width41 ft (12.4 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,500 (2020)
Projected traffic23,450 by 2040
Trucks10%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 25 Ml Nbnd over Young Hollow built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1998.

What condition is I 25 Ml Nbnd over Young Hollow 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 August 2024.

How much traffic does I 25 Ml Nbnd over Young Hollow carry?

About 17,500 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is I 25 Ml Nbnd over Young Hollow?

The structure is 154 ft (46.9 m) long with a longest span of 50 ft (15.2 m) and a deck 41 ft wide.

Who owns I 25 Ml Nbnd over Young Hollow?

It is owned by the State Highway Agency.