US Bridges

County Road 56 over Larimer County Canal

Good

Larimer County, Colorado · 50 Ft E of CO RD 21C · Structure no. LR56-0.0-21C-A

Built
1989
36 years old, rebuilt 2017
Condition
Good
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
101 ft
1 main span
Daily traffic
642
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 56 over Larimer County Canal is a steel stringer/multi-beam or girder carrying County Road 56 over Larimer County Canal in Larimer County, Colorado. It was built in 1989 and reconstructed in 2017, so it is 36 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 642 vehicles a day, roughly 33% of them trucks, projected to reach 802 by 2043. The structure is 101 ft (30.8 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 56
CrossesLarimer County Canal
Location50 Ft E of CO RD 21C
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.65481, -105.13422
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42 US tons
Inventory rating25.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length101 ft (30.8 m)
Longest span98 ft (29.9 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic642 (2023)
Projected traffic802 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 56 over Larimer County Canal built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2017.

What condition is County Road 56 over Larimer County 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 56 over Larimer County Canal carry?

About 642 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is County Road 56 over Larimer County Canal?

The structure is 101 ft (30.8 m) long with a longest span of 98 ft (29.9 m) and a deck 39 ft wide.

Who owns County Road 56 over Larimer County Canal?

It is owned by the County Highway Agency.