US Bridges

County Road 11 over North Poudre Canal

GoodPosted for load

Larimer County, Colorado · 0.8 MI N of CO RD 70 · Structure no. LR11-0.8-70-A

Built
1986
39 years old
Condition
Good
inspected March 2025
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
22 ft
1 main span
Daily traffic
278
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 11 over North Poudre Canal is a aluminum, wrought iron, or cast iron culvert carrying County Road 11 over North Poudre Canal in Larimer County, Colorado. It was built in 1986, so it is 39 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 278 vehicles a day, roughly 46% of them trucks, projected to reach 348 by 2043. The structure is 22 ft (6.6 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 11
CrossesNorth Poudre Canal
Location0.8 MI N of CO RD 70
RouteCounty Highway 0
Coordinates40.76536, -105.03814
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.4 US tons
Inventory rating25.4 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.6 m)
Longest span22 ft (6.6 m)
Deck width54 ft (16.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic278 (2023)
Projected traffic348 by 2043
Trucks46%
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 11 over North Poudre Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road 11 over North Poudre Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2025.

How much traffic does County Road 11 over North Poudre Canal carry?

About 278 vehicles per day (2023 count), of which roughly 46% are trucks.

How long is County Road 11 over North Poudre Canal?

The structure is 22 ft (6.6 m) long with a longest span of 22 ft (6.6 m) and a deck 54 ft wide.

Who owns County Road 11 over North Poudre Canal?

It is owned by the County Highway Agency.