US Bridges

County Road 52 over Larimer & Weld Canal

Fair

Larimer County, Colorado · 1.2 MI East of I-25 · Structure no. LR52-1.2-I25

Built
1975
50 years old
Condition
Fair
inspected March 2025
Type
Tee Beam
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
706
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 52 over Larimer & Weld Canal is a prestressed concrete tee beam carrying County Road 52 over Larimer & Weld Canal in Larimer County, Colorado. It was built in 1975, so it is 50 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 706 vehicles a day, roughly 13% of them trucks, projected to reach 883 by 2043. The structure is 44 ft (13.3 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 52
CrossesLarimer & Weld Canal
Location1.2 MI East of I-25
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.62447, -104.97894
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating60.5 US tons
Inventory rating19.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span39 ft (11.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic706 (2023)
Projected traffic883 by 2043
Trucks13%
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 52 over Larimer & Weld Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is County Road 52 over Larimer & Weld Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2025.

How much traffic does County Road 52 over Larimer & Weld Canal carry?

About 706 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is County Road 52 over Larimer & Weld Canal?

The structure is 44 ft (13.3 m) long with a longest span of 39 ft (11.8 m) and a deck 28 ft wide.

Who owns County Road 52 over Larimer & Weld Canal?

It is owned by the County Highway Agency.