US Bridges

I 25 Ml Sbnd over 29th ST

Fair

Pueblo County, Colorado · 0.7 MI S of JCT US 50 W S · Structure no. K-18-EB

Built
1960
65 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete Continuous
Length
155 ft
4 main spans
Daily traffic
28,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Sbnd over 29th ST is a concrete continuous tee beam carrying I 25 Ml Sbnd over 29th ST in Pueblo County, Colorado. It was built in 1960, so it is 65 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 5 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 28,500 vehicles a day, roughly 8% of them trucks, projected to reach 38,475 by 2040. The structure is 155 ft (47.3 m) long and 34 ft wide.

CarriesI 25 Ml Sbnd
Crosses29th ST
Location0.7 MI S of JCT US 50 W S
RouteInterstate 25A
Coordinates38.29799, -104.61167
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.1 US tons
Inventory rating26 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length155 ft (47.3 m)
Longest span44 ft (13.5 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,500 (2020)
Projected traffic38,475 by 2040
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$285,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I 25 Ml Sbnd over 29th ST built?

It was built in 1960, making it 65 years old in 2025.

What condition is I 25 Ml Sbnd over 29th ST 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 July 2024.

How much traffic does I 25 Ml Sbnd over 29th ST carry?

About 28,500 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is I 25 Ml Sbnd over 29th ST?

The structure is 155 ft (47.3 m) long with a longest span of 44 ft (13.5 m) and a deck 34 ft wide.

Who owns I 25 Ml Sbnd over 29th ST?

It is owned by the State Highway Agency.