US Bridges

County Road 4 over Denver Hudson Canal

Fair

Weld County, Colorado · 1.1 MI E of CO RD 41 · Structure no. WEL004.0-043.0A

Built
1965
60 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
229
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 4 over Denver Hudson Canal is a steel stringer/multi-beam or girder carrying County Road 4 over Denver Hudson Canal in Weld County, Colorado. It was built in 1965, so it is 60 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 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 229 vehicles a day, roughly 32% of them trucks, projected to reach 326 by 2042. The structure is 39 ft (12 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 4
CrossesDenver Hudson Canal
Location1.1 MI E of CO RD 41
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.0151, -104.65546
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 rating73 US tons
Inventory rating43.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length39 ft (12 m)
Longest span37 ft (11.3 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic229 (2022)
Projected traffic326 by 2042
Trucks32%
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 4 over Denver Hudson Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Road 4 over Denver Hudson 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 February 2024.

How much traffic does County Road 4 over Denver Hudson Canal carry?

About 229 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is County Road 4 over Denver Hudson Canal?

The structure is 39 ft (12 m) long with a longest span of 37 ft (11.3 m) and a deck 31 ft wide.

Who owns County Road 4 over Denver Hudson Canal?

It is owned by the County Highway Agency.