US Bridges

County Road 29C over Poudre Valley Canal

Fair

Larimer County, Colorado · 150 Ft N of ST HWY 14 · Structure no. LR29C-0.0-S14

Built
1960
65 years old
Condition
Fair
inspected March 2025
Type
Tee Beam
Concrete
Length
54 ft
1 main span
Daily traffic
166
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 29C over Poudre Valley Canal is a concrete tee beam carrying County Road 29C over Poudre Valley Canal in Larimer County, Colorado. It was built in 1960, so it is 65 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 6 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 166 vehicles a day, roughly 32% of them trucks, projected to reach 207 by 2043. The structure is 54 ft (16.5 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCounty Road 29C
CrossesPoudre Valley Canal
Location150 Ft N of ST HWY 14
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.66544, -105.20953
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 above top of footing
Structural evaluation6: Equal to present minimum criteria
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 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckOther
Main spans1 (+2 approach)
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic166 (2023)
Projected traffic207 by 2043
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 29C over Poudre Valley Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is County Road 29C 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 29C over Poudre Valley Canal carry?

About 166 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is County Road 29C over Poudre Valley Canal?

The structure is 54 ft (16.5 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns County Road 29C over Poudre Valley Canal?

It is owned by the County Highway Agency.