US Bridges

SD073 over Moreau Rv

Good

Perkins County, South Dakota · 11.5 N Meade CO Line · Structure no. 000000053392521

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
395 ft
4 main spans
Daily traffic
425
2024 count
Owner
State
State Highway Agency

About this bridge

SD073 over Moreau Rv is a prestressed concrete stringer/multi-beam or girder carrying SD073 over Moreau Rv in Perkins County, South Dakota. It was built in 2016, so it is 9 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 425 vehicles a day, roughly 35% of them trucks, projected to reach 677 by 2044. The structure is 395 ft (120.3 m) long and 35 ft wide. If it were closed, the detour would be 57.8 mi (93 km).

CarriesSD073
CrossesMoreau Rv
Location11.5 N Meade CO Line
RouteState Highway 73
Coordinates45.19806, -102.15683
Functional classRural Principal Arterial - Other

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating51 US tons
Inventory rating39.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length395 ft (120.3 m)
Longest span102 ft (31.1 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2024)
Projected traffic677 by 2044
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed57.8 mi (93 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SD073 over Moreau Rv built?

It was built in 2016, making it 9 years old in 2025.

What condition is SD073 over 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 June 2023.

How much traffic does SD073 over Moreau Rv carry?

About 425 vehicles per day (2024 count), of which roughly 35% are trucks.

How long is SD073 over Moreau Rv?

The structure is 395 ft (120.3 m) long with a longest span of 102 ft (31.1 m) and a deck 35 ft wide.

Who owns SD073 over Moreau Rv?

It is owned by the State Highway Agency.