US Bridges

80th Ave over US 36 Ml

Good

Adams County, Colorado · In Westminster · Structure no. E-16-YF

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
221 ft
2 main spans
Daily traffic
15,872
2024 count
Owner
State
State Highway Agency

About this bridge

80th Ave over US 36 Ml is a prestressed concrete continuous box beam or girders - multiple carrying 80th Ave over US 36 Ml in Adams County, Colorado. It was built in 2010, so it is 15 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 15,872 vehicles a day, roughly 1% of them trucks, projected to reach 20,633 by 2044. The structure is 221 ft (67.4 m) long and 90 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries80th Ave
CrossesUS 36 Ml
LocationIn Westminster
RouteCity Street 0
Coordinates39.84207, -105.03982
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating89.9 US tons
Inventory rating64.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length221 ft (67.4 m)
Longest span109 ft (33.2 m)
Deck width90 ft (27.4 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,872 (2024)
Projected traffic20,633 by 2044
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 80th Ave over US 36 Ml built?

It was built in 2010, making it 15 years old in 2025.

What condition is 80th Ave over US 36 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 August 2024.

How much traffic does 80th Ave over US 36 Ml carry?

About 15,872 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is 80th Ave over US 36 Ml?

The structure is 221 ft (67.4 m) long with a longest span of 109 ft (33.2 m) and a deck 90 ft wide.

Who owns 80th Ave over US 36 Ml?

It is owned by the State Highway Agency.