US Bridges

Zeonia Road over South Fork Moreau Rv

Good

Perkins County, South Dakota · 4.5W & 30.4S Prairie City · Structure no. 000000053028594

Built
1996
29 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
168 ft
3 main spans
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

Zeonia Road over South Fork Moreau Rv is a prestressed concrete continuous stringer/multi-beam or girder carrying Zeonia Road over South Fork Moreau Rv in Perkins County, South Dakota. It was built in 1996, so it is 29 years old, younger than the South Dakota average of 48.9 years.

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

It carries about 41 vehicles a day, roughly 2% of them trucks, projected to reach 41 by 2032. The structure is 168 ft (51.2 m) long and 33 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

CarriesZeonia Road
CrossesSouth Fork Moreau Rv
Location4.5W & 30.4S Prairie City
RouteCounty Highway 0
Coordinates45.09037, -102.90035
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating41.8 US tons
Inventory rating32.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length168 ft (51.2 m)
Longest span58 ft (17.7 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2022)
Projected traffic41 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 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 Zeonia Road over South Fork Moreau Rv built?

It was built in 1996, making it 29 years old in 2025.

What condition is Zeonia Road over South Fork Moreau Rv 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 May 2023.

How much traffic does Zeonia Road over South Fork Moreau Rv carry?

About 41 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Zeonia Road over South Fork Moreau Rv?

The structure is 168 ft (51.2 m) long with a longest span of 58 ft (17.7 m) and a deck 33 ft wide.

Who owns Zeonia Road over South Fork Moreau Rv?

It is owned by the County Highway Agency.