US Bridges

County Road 35 over Larimer and Weld Canal

Good

Weld County, Colorado · 0.8 MI N of CO RD 78 · Structure no. WEL035.0-078.0A

Built
1992
33 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
437
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 35 over Larimer and Weld Canal is a prestressed concrete tee beam carrying County Road 35 over Larimer and Weld Canal in Weld 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 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 437 vehicles a day, roughly 19% of them trucks, projected to reach 621 by 2042. The structure is 37 ft (11.3 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 35
CrossesLarimer and Weld Canal
Location0.8 MI N of CO RD 78
RouteCounty Highway 0
Coordinates40.567, -104.735
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating42.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span33 ft (10.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic437 (2022)
Projected traffic621 by 2042
Trucks19%
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 County Road 35 over Larimer and Weld Canal built?

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

What condition is County Road 35 over Larimer and Weld 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 February 2024.

How much traffic does County Road 35 over Larimer and Weld Canal carry?

About 437 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is County Road 35 over Larimer and Weld Canal?

The structure is 37 ft (11.3 m) long with a longest span of 33 ft (10.1 m) and a deck 34 ft wide.

Who owns County Road 35 over Larimer and Weld Canal?

It is owned by the County Highway Agency.