US Bridges

County Road 3 over Poudre Valley Canal

Fair

Larimer County, Colorado · 0.2 MI N of CO RD 62 · Structure no. LR3-0.2-62-A

Built
1962
63 years old
Condition
Fair
inspected March 2025
Type
Tee Beam
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
187
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 3 over Poudre Valley Canal is a prestressed concrete tee beam carrying County Road 3 over Poudre Valley Canal in Larimer County, Colorado. It was built in 1962, so it is 63 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 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 187 vehicles a day, roughly 22% of them trucks, projected to reach 234 by 2043. The structure is 27 ft (8.3 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 3
CrossesPoudre Valley Canal
Location0.2 MI N of CO RD 62
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.69964, -104.96219
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.5 US tons
Inventory rating63.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.3 m)
Longest span25 ft (7.6 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic187 (2023)
Projected traffic234 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 3 over Poudre Valley Canal built?

It was built in 1962, making it 63 years old in 2025.

What condition is County Road 3 over Poudre Valley 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 2025.

How much traffic does County Road 3 over Poudre Valley Canal carry?

About 187 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is County Road 3 over Poudre Valley Canal?

The structure is 27 ft (8.3 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.

Who owns County Road 3 over Poudre Valley Canal?

It is owned by the County Highway Agency.