US Bridges

County Road 37.5 over Union Ditch

Good

Weld County, Colorado · 0.6 Miles Southeast of Hw · Structure no. LASALLE-001A

Built
2024
1 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
2,205
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

County Road 37.5 over Union Ditch is a prestressed concrete slab carrying County Road 37.5 over Union Ditch in Weld County, Colorado. It was built in 2024, so it is 1 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,205 vehicles a day, projected to reach 3,131 by 2043. The structure is 36 ft (11 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 37.5
CrossesUnion Ditch
Location0.6 Miles Southeast of Hw
RouteCity Street 0
CountyWeld County
StateColorado
Coordinates40.34253, -104.70132
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating105.1 US tons
Inventory rating81 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length36 ft (11 m)
Longest span30 ft (9.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,205 (2023)
Projected traffic3,131 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 37.5 over Union Ditch built?

It was built in 2024, making it 1 years old in 2025.

What condition is County Road 37.5 over Union Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does County Road 37.5 over Union Ditch carry?

About 2,205 vehicles per day (2023 count).

How long is County Road 37.5 over Union Ditch?

The structure is 36 ft (11 m) long with a longest span of 30 ft (9.1 m) and a deck 39 ft wide.

Who owns County Road 37.5 over Union Ditch?

It is owned by the City or Municipal Highway Agency.