US Bridges

75th Ave over Little Dry Creek

Good

Adams County, Colorado · 75th Ave E of Sheridan · Structure no. WST10-8-R

Built
1988
37 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
817
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

75th Ave over Little Dry Creek is a concrete culvert carrying 75th Ave over Little Dry Creek in Adams County, Colorado. It was built in 1988, so it is 37 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 817 vehicles a day, roughly 4% of them trucks, projected to reach 1,062 by 2041. The structure is 35 ft (10.6 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries75th Ave
CrossesLittle Dry Creek
Location75th Ave E of Sheridan
RouteCity Street 0
Coordinates39.83272, -105.05202
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.9 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length35 ft (10.6 m)
Longest span11 ft (3.4 m)
Deck width48 ft (14.7 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic817 (2021)
Projected traffic1,062 by 2041
Trucks4%
Lanes on structure2
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 75th Ave over Little Dry Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is 75th Ave 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 75th Ave over Little Dry Creek carry?

About 817 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is 75th Ave over Little Dry Creek?

The structure is 35 ft (10.6 m) long with a longest span of 11 ft (3.4 m) and a deck 48 ft wide.

Who owns 75th Ave over Little Dry Creek?

It is owned by the City or Municipal Highway Agency.