US Bridges

County Road 22.5 over Platte Valley Canal

Fair

Weld County, Colorado · 0.3 MI W of CO RD 25.5 · Structure no. WEL022.5-025.0A

Built
1985
40 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
42
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 22.5 over Platte Valley Canal is a steel stringer/multi-beam or girder carrying County Road 22.5 over Platte Valley Canal in Weld County, Colorado. It was built in 1985, so it is 40 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 42 vehicles a day, roughly 14% of them trucks, projected to reach 60 by 2042. The structure is 46 ft (14 m) long and 16 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesCounty Road 22.5
CrossesPlatte Valley Canal
Location0.3 MI W of CO RD 25.5
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.15239, -104.81946
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.7 US tons
Inventory rating16 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span44 ft (13.3 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2022)
Projected traffic60 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$168,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 22.5 over Platte Valley Canal built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Road 22.5 over Platte Valley 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 22.5 over Platte Valley Canal carry?

About 42 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is County Road 22.5 over Platte Valley Canal?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.3 m) and a deck 16 ft wide.

Who owns County Road 22.5 over Platte Valley Canal?

It is owned by the County Highway Agency.