Structure 36280055 · Jackson County, SD

Franklin Creek RD over Willow Ck

Carries Franklin Creek RD over Willow Ck, 3w & 5.5n Kadoka.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT63 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 63 ft across with 5 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.

Built201016 years old
Length62.7 ft19.1 m
Daily traffic15counted 2022
Last inspectedJune 2023every 24 months

Location

StateSouth Dakota
CountyJackson
Location3w & 5.5n Kadoka
CarriesFranklin Creek RD
CrossesWillow Ck
Coordinates43.91603, -101.58193

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length62.7 ft (19.1 m)
Max Span10.8 ft (3.3 m)
Deck Area139.4 sq m
Main Spans5
Year Built2010

Traffic

Avg Daily Traffic15 (2022)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000036280055

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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