US Bridges

SH 30 Ml/Hampden over Goldsmith Gulch

Fair

Denver County, Colorado · At Tiffany Plaza in Denve · Structure no. F-17-BJ

Built
1965
60 years old, rebuilt 1975
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
42,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 30 Ml/Hampden over Goldsmith Gulch is a concrete culvert carrying SH 30 Ml/Hampden over Goldsmith Gulch in Denver County, Colorado. It was built in 1965 and reconstructed in 1975, so it is 60 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 42,000 vehicles a day, roughly 3% of them trucks, projected to reach 44,940 by 2040. The structure is 32 ft (9.8 m) long and 133 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSH 30 Ml/Hampden
CrossesGoldsmith Gulch
LocationAt Tiffany Plaza in Denve
RouteState Highway 30A
CountyDenver County
StateColorado
Coordinates39.65296, -104.90095
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.3 US tons
Inventory rating19.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span13 ft (4 m)
Deck width133 ft (40.5 m)
Roadway width110 ft (33.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,000 (2020)
Projected traffic44,940 by 2040
Trucks3%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$230,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 30 Ml/Hampden over Goldsmith Gulch built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1975.

What condition is SH 30 Ml/Hampden over Goldsmith 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 February 2025.

How much traffic does SH 30 Ml/Hampden over Goldsmith Gulch carry?

About 42,000 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is SH 30 Ml/Hampden over Goldsmith Gulch?

The structure is 32 ft (9.8 m) long with a longest span of 13 ft (4 m) and a deck 133 ft wide.

Who owns SH 30 Ml/Hampden over Goldsmith Gulch?

It is owned by the State Highway Agency.