Structure 58300162 · Spink County, SD

Sd037 over Ck

Carries Sd037 over Ck, 7.8 N Jct US 212.

Overall conditionPoor

Set by its lowest-rated component: Culvert at 4 of 9.

How ratings work
Culvertsets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 31 ft across with 3 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built195868 years old
Length30.8 ft9.4 m
Daily traffic462counted 2024
Last inspectedJune 2024every 24 months

Location

StateSouth Dakota
CountySpink
Location7.8 N Jct US 212
CarriesSd037
CrossesCk
Coordinates45.00795, -98.10509

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length30.8 ft (9.4 m)
Max Span9.8 ft (3 m)
Deck Area103.4 sq m
Main Spans3
Year Built1958

Traffic

Avg Daily Traffic462 (2024)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000058300162

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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