Structure 62220177 · Tripp County, SD

318 Avenue over Old Lodge Ck

Carries 318 Avenue over Old Lodge Ck, 3e & 9.3n Winner.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT63 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

63 ft end to end, longest span 15 ft. 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.

Built1958rebuilt 1963
Length63.0 ft19.2 m
Daily traffic37counted 2022
Last inspectedJune 2023every 24 months

Location

StateSouth Dakota
CountyTripp
Location3e & 9.3n Winner
Carries318 Avenue
CrossesOld Lodge Ck
Coordinates43.52014, -99.80246

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length63.0 ft (19.2 m)
Max Span15.1 ft (4.6 m)
Deck Width23.3 ft (7.1 m)
Deck Area136.3 sq m
Main Spans4
Year Built1958 (reconstructed 1963)

Traffic

Avg Daily Traffic37 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000062220177

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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