US Bridges

County Road 53 over South Platte River

Good

Weld County, Colorado · 1.4 MI No of JCT US 34 · Structure no. WEL053.0_058.0A

Built
2020
5 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
703 ft
5 main spans
Daily traffic
4,689
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

County Road 53 over South Platte River is a prestressed concrete continuous stringer/multi-beam or girder carrying County Road 53 over South Platte River in Weld County, Colorado. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,689 vehicles a day, roughly 13% of them trucks, projected to reach 6,658 by 2043. The structure is 703 ft (214.2 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCounty Road 53
CrossesSouth Platte River
Location1.4 MI No of JCT US 34
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.41083, -104.56385
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length703 ft (214.2 m)
Longest span134 ft (40.9 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,689 (2023)
Projected traffic6,658 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.6 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 53 over South Platte River built?

It was built in 2020, making it 5 years old in 2025.

What condition is County Road 53 over South Platte River 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 June 2024.

How much traffic does County Road 53 over South Platte River carry?

About 4,689 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is County Road 53 over South Platte River?

The structure is 703 ft (214.2 m) long with a longest span of 134 ft (40.9 m) and a deck 31 ft wide.

Who owns County Road 53 over South Platte River?

It is owned by the Town or Township Highway Agency.