US Bridges

Humboldt ST over East Harvard Gulch

GoodPosted for load

Denver County, Colorado · Humboldt and E Harvard · Structure no. D-13-HGE-100

Built
1967
58 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
259
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Humboldt ST over East Harvard Gulch is a concrete slab carrying Humboldt 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 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. Its operating status is: posted for load restriction.

It carries about 259 vehicles a day, roughly 2% of them trucks, projected to reach 287 by 2041. The structure is 29 ft (8.8 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHumboldt ST
CrossesEast Harvard Gulch
LocationHumboldt and E Harvard
RouteCity Street 0
Coordinates39.67125, -104.96997
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.2 US tons
Inventory rating16.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width45 ft (13.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic259 (2021)
Projected traffic287 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 Humboldt ST over East Harvard Gulch built?

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

What condition is Humboldt ST over East Harvard Gulch 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 November 2024.

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

About 259 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Humboldt ST over East Harvard Gulch?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 45 ft wide.

Who owns Humboldt ST over East Harvard Gulch?

It is owned by the City or Municipal Highway Agency.