US Bridges

County Road 29 over Home Supply Ditch

Good

Larimer County, Colorado · 0.6 MI N of CO RD 20 · Structure no. LR29-0.6-20-A

Built
2010
15 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
1,982
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 29 over Home Supply Ditch is a concrete culvert carrying County Road 29 over Home Supply Ditch in Larimer County, Colorado. It was built in 2010, so it is 15 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 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 1,982 vehicles a day, roughly 21% of them trucks, projected to reach 2,478 by 2043. The structure is 20 ft (6.1 m) long and 59 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Road 29
CrossesHome Supply Ditch
Location0.6 MI N of CO RD 20
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.39755, -105.19264
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width59 ft (17.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,982 (2023)
Projected traffic2,478 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 2010, making it 15 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 1,982 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 (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 59 ft wide.

Who owns County Road 29 over Home Supply Ditch?

It is owned by the County Highway Agency.