US Bridges

136th Avenue over I-25 Ml

Good

Adams County, Colorado · 136th Ave over I-25 · Structure no. THN-136WAS-I25

Built
2004
21 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
273 ft
2 main spans
Daily traffic
22,524
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

136th Avenue over I-25 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying 136th Avenue over I-25 Ml in Adams County, Colorado. It was built in 2004, so it is 21 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 22,524 vehicles a day, roughly 4% of them trucks, projected to reach 29,282 by 2041. The structure is 273 ft (83.1 m) long and 121 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries136th Avenue
CrossesI-25 Ml
Location136th Ave over I-25
RouteCity Street 0
Coordinates39.94306, -104.98779
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.5 US tons
Inventory rating49.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHS 25 or greater
Structure length273 ft (83.1 m)
Longest span130 ft (39.7 m)
Deck width121 ft (36.9 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,524 (2021)
Projected traffic29,282 by 2041
Trucks4%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 136th Avenue over I-25 Ml built?

It was built in 2004, making it 21 years old in 2025.

What condition is 136th Avenue over I-25 Ml 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 January 2024.

How much traffic does 136th Avenue over I-25 Ml carry?

About 22,524 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is 136th Avenue over I-25 Ml?

The structure is 273 ft (83.1 m) long with a longest span of 130 ft (39.7 m) and a deck 121 ft wide.

Who owns 136th Avenue over I-25 Ml?

It is owned by the City or Municipal Highway Agency.