US Bridges

Alkire Street over Croke Canal

Fair

Jefferson County, Colorado · 0.8 MI N of 72nd Ave · Structure no. G-25-54A

Built
1992
33 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
4,326
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Alkire Street over Croke Canal is a steel stringer/multi-beam or girder carrying Alkire Street over Croke Canal in Jefferson County, Colorado. It was built in 1992, so it is 33 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 5 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 4,326 vehicles a day, roughly 2% of them trucks, projected to reach 4,975 by 2041. The structure is 35 ft (10.7 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAlkire Street
CrossesCroke Canal
Location0.8 MI N of 72nd Ave
RouteCity Street 0
CountyJefferson County
StateColorado
Coordinates39.83944, -105.14761
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating61.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,326 (2021)
Projected traffic4,975 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Alkire Street over Croke Canal built?

It was built in 1992, making it 33 years old in 2025.

What condition is Alkire Street 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 2023.

How much traffic does Alkire Street over Croke Canal carry?

About 4,326 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Alkire Street over Croke Canal?

The structure is 35 ft (10.7 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns Alkire Street over Croke Canal?

It is owned by the City or Municipal Highway Agency.