US Bridges

SH 72 Ml over Croke Canal

Fair

Jefferson County, Colorado · Indiana ST .1 MI N of 72N · Structure no. E-16-DJ

Built
1991
34 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
16,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 72 Ml over Croke Canal is a concrete slab carrying SH 72 Ml over Croke Canal in Jefferson County, Colorado. It was built in 1991, so it is 34 years old, younger 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 16,000 vehicles a day, roughly 3% of them trucks, projected to reach 20,000 by 2040. The structure is 33 ft (10.1 m) long and 83 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 72 Ml
CrossesCroke Canal
LocationIndiana ST .1 MI N of 72N
RouteState Highway 72A
Coordinates39.83011, -105.16529
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.8 US tons
Inventory rating43.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width83 ft (25.3 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2020)
Projected traffic20,000 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 SH 72 Ml over Croke Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is SH 72 Ml over Croke Canal 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 January 2025.

How much traffic does SH 72 Ml over Croke Canal carry?

About 16,000 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is SH 72 Ml over Croke Canal?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 83 ft wide.

Who owns SH 72 Ml over Croke Canal?

It is owned by the State Highway Agency.