US Bridges

County Road 50 over Gilmore Ditch

Fair

Weld County, Colorado · 0.1 MI E of CO RD 47 · Structure no. WEL050.0-047.0A

Built
1979
46 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
80
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 50 over Gilmore Ditch is a steel stringer/multi-beam or girder carrying County Road 50 over Gilmore Ditch in Weld County, Colorado. It was built in 1979, so it is 46 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 80 vehicles a day, roughly 50% of them trucks, projected to reach 113 by 2042. The structure is 39 ft (11.8 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 50
CrossesGilmore Ditch
Location0.1 MI E of CO RD 47
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.34847, -104.61777
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.7 US tons
Inventory rating13 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length39 ft (11.8 m)
Longest span35 ft (10.8 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2023)
Projected traffic113 by 2042
Trucks50%
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 50 over Gilmore Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is County Road 50 over Gilmore 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 April 2024.

How much traffic does County Road 50 over Gilmore Ditch carry?

About 80 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is County Road 50 over Gilmore Ditch?

The structure is 39 ft (11.8 m) long with a longest span of 35 ft (10.8 m) and a deck 31 ft wide.

Who owns County Road 50 over Gilmore Ditch?

It is owned by the County Highway Agency.