US Bridges

County Road 345 over I 25 Ml

Fair

Pueblo County, Colorado · 2.9 Miles North of SH 165 · Structure no. M-17-AO

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
190 ft
4 main spans
Daily traffic
179
2022 count
Owner
State
State Highway Agency

About this bridge

County Road 345 over I 25 Ml is a concrete continuous tee beam carrying County Road 345 over I 25 Ml in Pueblo County, Colorado. It was built in 1965, so it is 60 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 179 vehicles a day, roughly 2% of them trucks, projected to reach 211 by 2042. The structure is 190 ft (57.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road 345
CrossesI 25 Ml
Location2.9 Miles North of SH 165
RouteCounty Highway 25A
CountyPueblo County
StateColorado
Coordinates37.99532, -104.76208
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179 (2022)
Projected traffic211 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 County Road 345 over I 25 Ml built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Road 345 over I 25 Ml 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 April 2024.

How much traffic does County Road 345 over I 25 Ml carry?

About 179 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 345 over I 25 Ml?

The structure is 190 ft (57.9 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns County Road 345 over I 25 Ml?

It is owned by the State Highway Agency.