Structure 4900015 · Marion County, IN

86th Street over Williams Creek

Carries 86th Street over Williams Creek, 00.50 E Of Ditch Road.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT64 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 64 ft across. 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.

Built1950rebuilt 1991
Length64.0 ft19.5 m
Daily traffic51,053counted 2019
Last inspectedAugust 2024every 24 months

Location

StateIndiana
CountyMarion
Location00.50 E Of Ditch Road
Carries86th Street
CrossesWilliams Creek
Coordinates39.91241, -86.17428

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length64.0 ft (19.5 m)
Max Span59.7 ft (18.2 m)
Deck Width86.9 ft (26.5 m)
Deck Area516.8 sq m
Main Spans1
Year Built1950 (reconstructed 1991)

Traffic

Avg Daily Traffic51,053 (2019)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number4900015

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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