US Bridges

SD034 over Redwater Rv

Fair

Butte County, South Dakota · 2.0 NW Lawrence CO Line · Structure no. 000000010114411

Built
1992
33 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
308 ft
3 main spans
Daily traffic
3,547
2024 count
Owner
State
State Highway Agency

About this bridge

SD034 over Redwater Rv is a steel continuous stringer/multi-beam or girder carrying SD034 over Redwater Rv in Butte County, South Dakota. It was built in 1992, so it is 33 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 3,547 vehicles a day, roughly 25% of them trucks, projected to reach 5,090 by 2044. The structure is 308 ft (93.8 m) long and 47 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesSD034
CrossesRedwater Rv
Location2.0 NW Lawrence CO Line
RouteState Highway 34
CountyButte County
StateSouth Dakota
Coordinates44.61824, -103.81928
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length308 ft (93.8 m)
Longest span117 ft (35.8 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,547 (2024)
Projected traffic5,090 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

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 Redwater Rv built?

It was built in 1992, making it 33 years old in 2025.

What condition is SD034 over Redwater 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 December 2023.

How much traffic does SD034 over Redwater Rv carry?

About 3,547 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is SD034 over Redwater Rv?

The structure is 308 ft (93.8 m) long with a longest span of 117 ft (35.8 m) and a deck 47 ft wide.

Who owns SD034 over Redwater Rv?

It is owned by the State Highway Agency.