US Bridges

I 225 Ml over Goldsmith Gulch

Poor

Denver County, Colorado · In Denver · Structure no. F-17-ES

Built
1971
54 years old
Condition
Poor
inspected June 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
128,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 225 Ml over Goldsmith Gulch is a concrete culvert carrying I 225 Ml over Goldsmith Gulch in Denver County, Colorado. It was built in 1971, so it is 54 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 128,000 vehicles a day, roughly 6% of them trucks, projected to reach 167,680 by 2040. The structure is 25 ft (7.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI 225 Ml
CrossesGoldsmith Gulch
LocationIn Denver
RouteInterstate 225A
Coordinates39.6356, -104.89293
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128,000 (2020)
Projected traffic167,680 by 2040
Trucks6%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 225 Ml over Goldsmith Gulch built?

It was built in 1971, making it 54 years old in 2025.

What condition is I 225 Ml over Goldsmith Gulch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does I 225 Ml over Goldsmith Gulch carry?

About 128,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is I 225 Ml over Goldsmith Gulch?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 42 ft wide.

Who owns I 225 Ml over Goldsmith Gulch?

It is owned by the State Highway Agency.