Structure 4900497 · Marion County, IN

56th Street WB over Fall Creek

Carries 56th Street WB over Fall Creek, 00.75 E SR 37.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT353 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

353 ft end to end, longest span 101 ft: about 5 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built1960rebuilt 1981
Length352.7 ft107.5 m
Daily traffic10,577counted 2019
Last inspectedJuly 2024every 24 months

Location

StateIndiana
CountyMarion
Location00.75 E SR 37
Carries56th Street WB
CrossesFall Creek
Coordinates39.85519, -86.08237

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length352.7 ft (107.5 m)
Max Span101.0 ft (30.8 m)
Deck Width44.3 ft (13.5 m)
Deck Area1451.2 sq m
Main Spans4
Year Built1960 (reconstructed 1981)

Traffic

Avg Daily Traffic10,577 (2019)
Truck Traffic5%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number4900497

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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