US Bridges

72nd Avenue over Little Dry Creek

Good

Adams County, Colorado · 72nd and Raleigh · Structure no. WST11-7-RA

Built
2017
8 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
14,357
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

72nd Avenue over Little Dry Creek is a prestressed concrete box beam or girders - single or spread carrying 72nd Avenue over Little Dry Creek in Adams County, Colorado. It was built in 2017, so it is 8 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 14,357 vehicles a day, roughly 5% of them trucks, projected to reach 18,665 by 2041. The structure is 56 ft (17 m) long and 120 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries72nd Avenue
CrossesLittle Dry Creek
Location72nd and Raleigh
RouteCity Street 0
Coordinates39.82722, -105.04167
Functional classUrban Minor Arterial

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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating57.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length56 ft (17 m)
Longest span50 ft (15.3 m)
Deck width120 ft (36.5 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,357 (2021)
Projected traffic18,665 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 72nd Avenue over Little Dry Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is 72nd Avenue over Little Dry Creek 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 December 2023.

How much traffic does 72nd Avenue over Little Dry Creek carry?

About 14,357 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 72nd Avenue over Little Dry Creek?

The structure is 56 ft (17 m) long with a longest span of 50 ft (15.3 m) and a deck 120 ft wide.

Who owns 72nd Avenue over Little Dry Creek?

It is owned by the City or Municipal Highway Agency.