US Bridges

County Road 29 over Home Supply Ditch

Good

Larimer County, Colorado · 0.5 MI N of US HWY 34 · Structure no. LR29-0.5-S34-A

Built
1981
44 years old
Condition
Good
inspected March 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
20 ft
1 main span
Daily traffic
397
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 29 over Home Supply Ditch is a aluminum, wrought iron, or cast iron culvert carrying County Road 29 over Home Supply Ditch in Larimer County, Colorado. It was built in 1981, so it is 44 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 397 vehicles a day, roughly 21% of them trucks, projected to reach 496 by 2043. The structure is 20 ft (6.2 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 29
CrossesHome Supply Ditch
Location0.5 MI N of US HWY 34
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.41889, -105.20478
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.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating86.2 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width55 ft (16.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic397 (2023)
Projected traffic496 by 2043
Trucks21%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 29 over Home Supply Ditch built?

It was built in 1981, making it 44 years old in 2025.

What condition is County Road 29 over Home Supply Ditch 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 2023.

How much traffic does County Road 29 over Home Supply Ditch carry?

About 397 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is County Road 29 over Home Supply Ditch?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m) and a deck 55 ft wide.

Who owns County Road 29 over Home Supply Ditch?

It is owned by the County Highway Agency.