US Bridges

74th Avenue over Croke Canal

FairPosted for load

Jefferson County, Colorado · .1 MI W of Carr Street · Structure no. ARVA-74-0.90-01

Built
1955
70 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
3,181
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

74th Avenue over Croke Canal is a steel stringer/multi-beam or girder carrying 74th Avenue over Croke Canal in Jefferson County, Colorado. It was built in 1955, so it is 70 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 3,181 vehicles a day, roughly 2% of them trucks, projected to reach 3,658 by 2041. The structure is 35 ft (10.7 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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Carries74th Avenue
CrossesCroke Canal
Location.1 MI W of Carr Street
RouteCity Street 0
CountyJefferson County
StateColorado
Coordinates39.83077, -105.09252
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating33 US tons
Inventory rating19.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span29 ft (8.9 m)
Deck width31 ft (9.3 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,181 (2021)
Projected traffic3,658 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$202,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 74th Avenue over Croke Canal built?

It was built in 1955, making it 70 years old in 2025.

What condition is 74th Avenue 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 March 2025.

How much traffic does 74th Avenue over Croke Canal carry?

About 3,181 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is 74th Avenue over Croke Canal?

The structure is 35 ft (10.7 m) long with a longest span of 29 ft (8.9 m) and a deck 31 ft wide.

Who owns 74th Avenue over Croke Canal?

It is owned by the City or Municipal Highway Agency.