US Bridges

County Road 48 over Pleas. Valley Lake Canal

Fair

Larimer County, Colorado · 0.1 MI W of CO RD 21 · Structure no. LR48-W0.1-21-A

Built
1993
32 years old
Condition
Fair
inspected March 2025
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
231
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 48 over Pleas. Valley Lake Canal is a concrete culvert carrying County Road 48 over Pleas. Valley Lake Canal in Larimer County, Colorado. It was built in 1993, so it is 32 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 231 vehicles a day, roughly 23% of them trucks, projected to reach 289 by 2043. The structure is 20 ft (6.2 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty Road 48
CrossesPleas. Valley Lake Canal
Location0.1 MI W of CO RD 21
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.59678, -105.13664
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.3 US tons
Inventory rating57.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic231 (2023)
Projected traffic289 by 2043
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 48 over Pleas. Valley Lake Canal built?

It was built in 1993, making it 32 years old in 2025.

What condition is County Road 48 over Pleas. Valley Lake 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 48 over Pleas. Valley Lake Canal carry?

About 231 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is County Road 48 over Pleas. Valley Lake Canal?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m) and a deck 32 ft wide.

Who owns County Road 48 over Pleas. Valley Lake Canal?

It is owned by the County Highway Agency.