US Bridges

SD034 over Belle Fourche Rv

Fair

Meade County, South Dakota · 17.6 NE JCT SD79 N · Structure no. 000000047215363

Built
1998
27 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
372 ft
3 main spans
Daily traffic
833
2024 count
Owner
State
State Highway Agency

About this bridge

SD034 over Belle Fourche Rv is a prestressed concrete continuous stringer/multi-beam or girder carrying SD034 over Belle Fourche Rv in Meade County, South Dakota. It was built in 1998, so it is 27 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 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 833 vehicles a day, roughly 19% of them trucks, projected to reach 1,328 by 2044. The structure is 372 ft (113.4 m) long and 38 ft wide. If it were closed, the detour would be 51 mi (82 km).

CarriesSD034
CrossesBelle Fourche Rv
Location17.6 NE JCT SD79 N
RouteState Highway 34
Coordinates44.5126, -103.13588
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.3 US tons
Inventory rating49.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length372 ft (113.4 m)
Longest span123 ft (37.5 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic833 (2024)
Projected traffic1,328 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 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 SD034 over Belle Fourche Rv built?

It was built in 1998, making it 27 years old in 2025.

What condition is SD034 over Belle Fourche Rv 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 June 2024.

How much traffic does SD034 over Belle Fourche Rv carry?

About 833 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is SD034 over Belle Fourche Rv?

The structure is 372 ft (113.4 m) long with a longest span of 123 ft (37.5 m) and a deck 38 ft wide.

Who owns SD034 over Belle Fourche Rv?

It is owned by the State Highway Agency.