Structure 26205100 · Grant County, SD

152 Street over Ck

Carries 152 Street over Ck, 4.8e & 5.5s Marvin.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 26 ft across with 2 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.

Built1930rebuilt 1970
Length25.9 ft7.9 m
Daily traffic52counted 2022
Last inspectedSeptember 2024every 48 months

Location

StateSouth Dakota
CountyGrant
Location4.8e & 5.5s Marvin
Carries152 Street
CrossesCk
Coordinates45.17889, -96.81246

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length25.9 ft (7.9 m)
Max Span9.8 ft (3 m)
Deck Width32.2 ft (9.8 m)
Deck Area77.4 sq m
Main Spans2
Year Built1930 (reconstructed 1970)

Traffic

Avg Daily Traffic52 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000026205100

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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