US Bridges

County Road 76.5 over Larimer and Weld Canal

Poor

Weld County, Colorado · 30 Ft W of CO RD 23 · Structure no. WEL076.5-021.0A

Built
1930
95 years old
Condition
Poor
inspected April 2024
Type
Tee Beam
Concrete
Length
42 ft
1 main span
Daily traffic
304
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 76.5 over Larimer and Weld Canal is a concrete tee beam carrying County Road 76.5 over Larimer and Weld Canal in Weld County, Colorado. It was built in 1930, so it is 95 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 304 vehicles a day, roughly 14% of them trucks, projected to reach 431 by 2043. The structure is 42 ft (12.8 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road 76.5
CrossesLarimer and Weld Canal
Location30 Ft W of CO RD 23
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.54518, -104.85038
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width20 ft (6.2 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2023)
Projected traffic431 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 76.5 over Larimer and Weld Canal built?

It was built in 1930, making it 95 years old in 2025.

What condition is County Road 76.5 over Larimer and Weld Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does County Road 76.5 over Larimer and Weld Canal carry?

About 304 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is County Road 76.5 over Larimer and Weld Canal?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 20 ft wide.

Who owns County Road 76.5 over Larimer and Weld Canal?

It is owned by the County Highway Agency.