US Bridges

County Road 70 over North Poudre Canal

Good

Larimer County, Colorado · 0.2 MI E of CO RD 9 · Structure no. LR70-0.2-9-A

Built
2024
1 years old
Condition
Good
inspected March 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
6,368
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 70 over North Poudre Canal is a prestressed concrete box beam or girders - multiple carrying County Road 70 over North Poudre Canal in Larimer County, Colorado. It was built in 2024, so it is 1 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,368 vehicles a day, roughly 33% of them trucks, projected to reach 7,960 by 2043. The structure is 44 ft (13.4 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 70
CrossesNorth Poudre Canal
Location0.2 MI E of CO RD 9
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.75514, -105.01483
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable 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 rating91.8 US tons
Inventory rating60.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span36 ft (11 m)
Deck width43 ft (13.2 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,368 (2023)
Projected traffic7,960 by 2043
Trucks33%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 70 over North Poudre Canal built?

It was built in 2024, making it 1 years old in 2025.

What condition is County Road 70 over North Poudre Canal 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 2025.

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

About 6,368 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is County Road 70 over North Poudre Canal?

The structure is 44 ft (13.4 m) long with a longest span of 36 ft (11 m) and a deck 43 ft wide.

Who owns County Road 70 over North Poudre Canal?

It is owned by the County Highway Agency.