US Bridges

S Madison Street over E Harvard Gulch

Fair

Denver County, Colorado · Madison ST N of Vassar Av · Structure no. D-13-HGE-260

Built
1967
58 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
334
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Madison Street over E Harvard Gulch is a concrete continuous slab carrying S Madison Street over E 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 334 vehicles a day, roughly 2% of them trucks, projected to reach 371 by 2041. The structure is 38 ft (11.5 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS Madison Street
CrossesE Harvard Gulch
LocationMadison ST N of Vassar Av
RouteCity Street 0
Coordinates39.66984, -104.9466
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.1 US tons
Inventory rating28.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length38 ft (11.5 m)
Longest span17 ft (5.2 m)
Deck width45 ft (13.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic334 (2021)
Projected traffic371 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 S Madison Street over E Harvard Gulch built?

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

What condition is S Madison Street over E 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 December 2024.

How much traffic does S Madison Street over E Harvard Gulch carry?

About 334 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is S Madison Street over E Harvard Gulch?

The structure is 38 ft (11.5 m) long with a longest span of 17 ft (5.2 m) and a deck 45 ft wide.

Who owns S Madison Street over E Harvard Gulch?

It is owned by the City or Municipal Highway Agency.