Structure 14135013 · Clay County, SD

29830 Ash Crk Ave. over Ash Ck

Carries 29830 Ash Crk Ave. over Ash Ck, 1.3s & 13.5e Irene.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 2 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating2/9 · Critical
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT46 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 2/9 · sets the rating

46 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.

Built194581 years old
Length45.9 ft14 m
Daily traffic25counted 2022
Last inspectedMay 2007every 12 months

Location

StateSouth Dakota
CountyClay
Location1.3s & 13.5e Irene
Carries29830 Ash Crk Ave.
CrossesAsh Ck
Coordinates43.06345, -96.89446

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length45.9 ft (14 m)
Max Span15.1 ft (4.6 m)
Deck Width18.0 ft (5.5 m)
Deck Area77 sq m
Main Spans3
Year Built1945

Traffic

Avg Daily Traffic25 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2007
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000014135013

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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