Structure 13420 · Pulaski County, IN

SR 39 over Wiltzin Ditch

Carries SR 39 over Wiltzin Ditch, 06.20 S SR 14.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

29 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.

Built1950rebuilt 1986
Length28.9 ft8.8 m
Daily traffic1,218counted 2020
Last inspectedDecember 2023every 24 months

Location

StateIndiana
CountyPulaski
Location06.20 S SR 14
CarriesSR 39
CrossesWiltzin Ditch
Coordinates40.97543, -86.77584

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length28.9 ft (8.8 m)
Max Span27.9 ft (8.5 m)
Deck Width31.2 ft (9.5 m)
Deck Area83.6 sq m
Main Spans1
Year Built1950 (reconstructed 1986)

Traffic

Avg Daily Traffic1,218 (2020)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number013420

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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