US Bridges

County Road 70 over North Poudre Ditch

Good

Larimer County, Colorado · 0.6 MI E of CO RD 17 · Structure no. LR70-0.6-17-B

Built
2019
6 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
5,176
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 70 over North Poudre Ditch is a concrete culvert carrying County Road 70 over North Poudre Ditch in Larimer County, Colorado. It was built in 2019, so it is 6 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 5,176 vehicles a day, roughly 28% of them trucks, projected to reach 6,470 by 2042. The structure is 26 ft (7.9 m) long and 78 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 70
CrossesNorth Poudre Ditch
Location0.6 MI E of CO RD 17
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.75471, -105.08301
Functional classRural Minor 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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating72.5 US tons
Inventory rating55.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width78 ft (23.8 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,176 (2023)
Projected traffic6,470 by 2042
Trucks28%
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

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 70 over North Poudre Ditch built?

It was built in 2019, making it 6 years old in 2025.

What condition is County Road 70 over North Poudre 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 June 2023.

How much traffic does County Road 70 over North Poudre Ditch carry?

About 5,176 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is County Road 70 over North Poudre Ditch?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 78 ft wide.

Who owns County Road 70 over North Poudre Ditch?

It is owned by the County Highway Agency.