US Bridges

County Road 18 over Handy Ditch

Good

Larimer County, Colorado · 0.4 MI E of CO RD 23E · Structure no. LR18-0.4-23E-A

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
1,397
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 18 over Handy Ditch is a concrete culvert carrying County Road 18 over Handy Ditch in Larimer County, Colorado. It was built in 2017, so it is 8 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.

It carries about 1,397 vehicles a day, roughly 24% of them trucks, projected to reach 1,746 by 2042. The structure is 20 ft (6.2 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 18
CrossesHandy Ditch
Location0.4 MI E of CO RD 23E
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.37844, -105.15614
Functional classUrban 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width61 ft (18.6 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,397 (2023)
Projected traffic1,746 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 18 over Handy Ditch built?

It was built in 2017, making it 8 years old in 2025.

What condition is County Road 18 over Handy 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 April 2023.

How much traffic does County Road 18 over Handy Ditch carry?

About 1,397 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is County Road 18 over Handy Ditch?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m) and a deck 61 ft wide.

Who owns County Road 18 over Handy Ditch?

It is owned by the County Highway Agency.