US Bridges

County Road 4 over Fulton Ditch

Fair

Weld County, Colorado · 0.9 MI E of US HWY 85 · Structure no. WEL004.0-027.0A

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
94
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 4 over Fulton Ditch is a prestressed concrete tee beam carrying County Road 4 over Fulton Ditch in Weld County, Colorado. It was built in 1970, so it is 55 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 94 vehicles a day, roughly 32% of them trucks, projected to reach 133 by 2042. The structure is 30 ft (9.2 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 4
CrossesFulton Ditch
Location0.9 MI E of US HWY 85
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.01498, -104.79706
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length30 ft (9.2 m)
Longest span29 ft (8.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic94 (2022)
Projected traffic133 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 Fulton Ditch built?

It was built in 1970, making it 55 years old in 2025.

What condition is County Road 4 over Fulton Ditch 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 4 over Fulton Ditch carry?

About 94 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is County Road 4 over Fulton Ditch?

The structure is 30 ft (9.2 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns County Road 4 over Fulton Ditch?

It is owned by the County Highway Agency.