US Bridges

County Road 23 over Larimer and Weld Canal

Fair

Weld County, Colorado · At Inter With CO RD 76 · Structure no. SEV023.0_074.0A

Built
1995
30 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
2,412
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

County Road 23 over Larimer and Weld Canal is a prestressed concrete box beam or girders - single or spread carrying County Road 23 over Larimer and Weld Canal in Weld County, Colorado. It was built in 1995, so it is 30 years old, younger 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 6 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 2,412 vehicles a day, roughly 36% of them trucks, projected to reach 3,426 by 2042. The structure is 81 ft (24.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 23
CrossesLarimer and Weld Canal
LocationAt Inter With CO RD 76
RouteCity Street 0
CountyWeld County
StateColorado
Coordinates40.538, -104.851
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length81 ft (24.8 m)
Longest span74 ft (22.7 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,412 (2023)
Projected traffic3,426 by 2042
Trucks36%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 23 over Larimer and Weld Canal built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Road 23 over Larimer and 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 2024.

How much traffic does County Road 23 over Larimer and Weld Canal carry?

About 2,412 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is County Road 23 over Larimer and Weld Canal?

The structure is 81 ft (24.8 m) long with a longest span of 74 ft (22.7 m) and a deck 35 ft wide.

Who owns County Road 23 over Larimer and Weld Canal?

It is owned by the City or Municipal Highway Agency.