US Bridges

County Road 1 over Lake Canal

Fair

Larimer County, Colorado · .2 MI S of CR 38 · Structure no. TNTH13.0-072.0A

Built
2002
23 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
2,377
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

County Road 1 over Lake Canal is a steel stringer/multi-beam or girder carrying County Road 1 over Lake Canal in Larimer County, Colorado. It was built in 2002, so it is 23 years old, younger 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 2,377 vehicles a day, roughly 21% of them trucks, projected to reach 2,971 by 2043. The structure is 24 ft (7.4 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 1
CrossesLake Canal
Location.2 MI S of CR 38
RouteCity Street 0
CountyLarimer County
StateColorado
Coordinates40.51942, -104.94428
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.1 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span21 ft (6.5 m)
Deck width40 ft (12.1 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,377 (2023)
Projected traffic2,971 by 2043
Trucks21%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 1 over Lake Canal built?

It was built in 2002, making it 23 years old in 2025.

What condition is County Road 1 over Lake 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 1 over Lake Canal carry?

About 2,377 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is County Road 1 over Lake Canal?

The structure is 24 ft (7.4 m) long with a longest span of 21 ft (6.5 m) and a deck 40 ft wide.

Who owns County Road 1 over Lake Canal?

It is owned by the City or Municipal Highway Agency.