US Bridges

I 25 Ml Sbnd over Porter Draw

Good

Pueblo County, Colorado · 4.7 MI N of JCT US 50 W S · Structure no. K-18-GQ

Built
2006
19 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
153 ft
1 main span
Daily traffic
17,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Ml Sbnd over Porter Draw is a prestressed concrete stringer/multi-beam or girder carrying I 25 Ml Sbnd over Porter Draw in Pueblo County, Colorado. It was built in 2006, so it is 19 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17,500 vehicles a day, roughly 10% of them trucks, projected to reach 23,450 by 2040. The structure is 153 ft (46.5 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 25 Ml Sbnd
CrossesPorter Draw
Location4.7 MI N of JCT US 50 W S
RouteInterstate 25A
Coordinates38.37497, -104.61984
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length153 ft (46.5 m)
Longest span150 ft (45.7 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 25 Ml Sbnd over Porter Draw built?

It was built in 2006, making it 19 years old in 2025.

What condition is I 25 Ml Sbnd over Porter Draw in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does I 25 Ml Sbnd over Porter Draw carry?

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

How long is I 25 Ml Sbnd over Porter Draw?

The structure is 153 ft (46.5 m) long with a longest span of 150 ft (45.7 m) and a deck 41 ft wide.

Who owns I 25 Ml Sbnd over Porter Draw?

It is owned by the State Highway Agency.