US Bridges

County Road 40 over Timnath Res. Outlet Cana

Good

Larimer County, Colorado · 1.1 MI E of CO RD 5 · Structure no. TNTH40-1.2-5

Built
1982
43 years old
Condition
Good
inspected March 2025
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
21 ft
1 main span
Daily traffic
1,572
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

County Road 40 over Timnath Res. Outlet Cana is a aluminum, wrought iron, or cast iron culvert carrying County Road 40 over Timnath Res. Outlet Cana in Larimer County, Colorado. It was built in 1982, so it is 43 years old, older 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.

It carries about 1,572 vehicles a day, roughly 4% of them trucks, projected to reach 1,965 by 2043. The structure is 21 ft (6.3 m) long and 71 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 40
CrossesTimnath Res. Outlet Cana
Location1.1 MI E of CO RD 5
RouteCity Street 0
Coordinates40.53739, -104.96031
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating29.3 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length21 ft (6.3 m)
Longest span21 ft (6.3 m)
Deck width71 ft (21.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,572 (2023)
Projected traffic1,965 by 2043
Trucks4%
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 40 over Timnath Res. Outlet Cana built?

It was built in 1982, making it 43 years old in 2025.

What condition is County Road 40 over Timnath Res. Outlet Cana 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 40 over Timnath Res. Outlet Cana carry?

About 1,572 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is County Road 40 over Timnath Res. Outlet Cana?

The structure is 21 ft (6.3 m) long with a longest span of 21 ft (6.3 m) and a deck 71 ft wide.

Who owns County Road 40 over Timnath Res. Outlet Cana?

It is owned by the City or Municipal Highway Agency.