US Bridges

County Road 84 over Larimer County Canal

Fair

Weld County, Colorado · 0.56 MI E of CR 1 · Structure no. WEL084.0-013.0A

Built
1980
45 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
900
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 84 over Larimer County Canal is a steel stringer/multi-beam or girder carrying County Road 84 over Larimer County Canal in Weld County, Colorado. It was built in 1980, so it is 45 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 6 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 900 vehicles a day, roughly 18% of them trucks, projected to reach 1,277 by 2043. The structure is 46 ft (14.1 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 84
CrossesLarimer County Canal
Location0.56 MI E of CR 1
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.59584, -104.93343
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating16.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length46 ft (14.1 m)
Longest span43 ft (13.1 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic1,277 by 2043
Trucks18%
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 84 over Larimer County Canal built?

It was built in 1980, making it 45 years old in 2025.

What condition is County Road 84 over Larimer County 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 April 2024.

How much traffic does County Road 84 over Larimer County Canal carry?

About 900 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is County Road 84 over Larimer County Canal?

The structure is 46 ft (14.1 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.

Who owns County Road 84 over Larimer County Canal?

It is owned by the County Highway Agency.