Structure 50202018 · Minnehaha County, SD

Third Street over Ck

Carries Third Street over Ck, Third St-dell Rapids.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating3/9 · Serious
Substructure5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 3/9 · sets the ratingSubstructure 5/9

50 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built195274 years old
Length49.5 ft15.1 m
Daily traffic160counted 2022
Last inspectedOctober 2024every 12 months

Location

StateSouth Dakota
CountyMinnehaha
LocationThird St-dell Rapids
CarriesThird Street
CrossesCk
Coordinates43.82267, -96.71946

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length49.5 ft (15.1 m)
Max Span48.9 ft (14.9 m)
Deck Width42.3 ft (12.9 m)
Deck Area194.8 sq m
Main Spans1
Year Built1952

Traffic

Avg Daily Traffic160 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalUnknown
Structure Number000000050202018

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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