Structure 10105376 · Butte County, SD

Us212 P over Redwater Rv

Carries Us212 P over Redwater Rv, 1e Jct Us85-belle Fourche.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT353 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

353 ft end to end, longest span 44 ft: about 5 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built199531 years old
Length353.3 ft107.7 m
Daily traffic1,418counted 2022
Last inspectedApril 2024every 24 months

Location

StateSouth Dakota
CountyButte
Location1e Jct Us85-belle Fourche
CarriesUs212 P
CrossesRedwater Rv
Coordinates44.66769, -103.83885

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length353.3 ft (107.7 m)
Max Span43.6 ft (13.3 m)
Deck Width38.7 ft (11.8 m)
Deck Area1270.9 sq m
Main Spans8
Year Built1995

Traffic

Avg Daily Traffic1,418 (2022)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000010105376

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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