US Bridges

50th Avenue over Farmers Highline Canal

Good

Jefferson County, Colorado · .5 MI W of Mcintyre · Structure no. F-23-76

Built
1972
53 years old
Condition
Good
inspected March 2025
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
3,277
2021 count
Owner
County
County Highway Agency

About this bridge

50th Avenue over Farmers Highline Canal is a concrete culvert carrying 50th Avenue over Farmers Highline Canal in Jefferson County, Colorado. It was built in 1972, so it is 53 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,277 vehicles a day, roughly 4% of them trucks, projected to reach 3,769 by 2041. The structure is 25 ft (7.6 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries50th Avenue
CrossesFarmers Highline Canal
Location.5 MI W of Mcintyre
RouteCounty Highway 0
Coordinates39.78721, -105.182
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width48 ft (14.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,277 (2021)
Projected traffic3,769 by 2041
Trucks4%
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

OwnerCounty Highway Agency
Maintained byCounty 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 50th Avenue over Farmers Highline Canal built?

It was built in 1972, making it 53 years old in 2025.

What condition is 50th Avenue over Farmers Highline Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2025.

How much traffic does 50th Avenue over Farmers Highline Canal carry?

About 3,277 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is 50th Avenue over Farmers Highline Canal?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 48 ft wide.

Who owns 50th Avenue over Farmers Highline Canal?

It is owned by the County Highway Agency.