US Bridges

County Road 64 over Poudre Valley Canal

Fair

Larimer County, Colorado · 0.1 MI East of I-25 · Structure no. LR64-0.1-I25-A

Built
1968
57 years old, rebuilt 1989
Condition
Fair
inspected March 2025
Type
Slab
Wood or Timber
Length
27 ft
1 main span
Daily traffic
3,151
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 64 over Poudre Valley Canal is a wood or timber slab carrying County Road 64 over Poudre Valley Canal in Larimer County, Colorado. It was built in 1968 and reconstructed in 1989, so it is 57 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 3,151 vehicles a day, roughly 36% of them trucks, projected to reach 3,939 by 2043. The structure is 27 ft (8.3 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 64
CrossesPoudre Valley Canal
Location0.1 MI East of I-25
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.71144, -104.99175
Functional classRural Major 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating40 US tons
Inventory rating28.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length27 ft (8.3 m)
Longest span25 ft (7.6 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,151 (2023)
Projected traffic3,939 by 2043
Trucks36%
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 64 over Poudre Valley Canal built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1989.

What condition is County Road 64 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 64 over Poudre Valley Canal carry?

About 3,151 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is County Road 64 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 31 ft wide.

Who owns County Road 64 over Poudre Valley Canal?

It is owned by the County Highway Agency.