US Bridges

Adams ST over East Harvard Gulch

Fair

Denver County, Colorado · Adams and Vassar Ave · Structure no. D-13-HGE-240

Built
1967
58 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
68 ft
6 main spans
Daily traffic
364
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Adams ST over East Harvard Gulch is a concrete culvert carrying Adams ST over East Harvard Gulch in Denver County, Colorado. It was built in 1967, so it is 58 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 364 vehicles a day, roughly 2% of them trucks, projected to reach 404 by 2041. The structure is 68 ft (20.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAdams ST
CrossesEast Harvard Gulch
LocationAdams and Vassar Ave
RouteCity Street 0
Coordinates39.66939, -104.94889
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length68 ft (20.7 m)
Longest span10 ft (3 m)
Deck width47 ft (14.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic364 (2021)
Projected traffic404 by 2041
Trucks2%
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 Adams ST over East Harvard Gulch built?

It was built in 1967, making it 58 years old in 2025.

What condition is Adams ST over East Harvard Gulch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Adams ST over East Harvard Gulch carry?

About 364 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Adams ST over East Harvard Gulch?

The structure is 68 ft (20.7 m) long with a longest span of 10 ft (3 m) and a deck 47 ft wide.

Who owns Adams ST over East Harvard Gulch?

It is owned by the City or Municipal Highway Agency.