US Bridges

County Road 45 over Hudson Annex Canal

Fair

Weld County, Colorado · 1.0 MI N of CO RD 6 · Structure no. WEL045.0-006.0A

Built
1969
56 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
2,756
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 45 over Hudson Annex Canal is a prestressed concrete tee beam carrying County Road 45 over Hudson Annex Canal in Weld County, Colorado. It was built in 1969, so it is 56 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 2,756 vehicles a day, roughly 31% of them trucks, projected to reach 3,914 by 2042. The structure is 41 ft (12.6 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 45
CrossesHudson Annex Canal
Location1.0 MI N of CO RD 6
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.03015, -104.64074
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating35.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span39 ft (12 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,756 (2022)
Projected traffic3,914 by 2042
Trucks31%
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 45 over Hudson Annex Canal built?

It was built in 1969, making it 56 years old in 2025.

What condition is County Road 45 over Hudson Annex 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 45 over Hudson Annex Canal carry?

About 2,756 vehicles per day (2022 count), of which roughly 31% are trucks.

How long is County Road 45 over Hudson Annex Canal?

The structure is 41 ft (12.6 m) long with a longest span of 39 ft (12 m) and a deck 28 ft wide.

Who owns County Road 45 over Hudson Annex Canal?

It is owned by the County Highway Agency.