Structure 6700131 · Putnam County, IN

Devil Backbone RD over Deer Creek

Carries Devil Backbone RD over Deer Creek, 00.65 Mi E Of Cr275e.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT94 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

94 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 through truss.

Built1906rebuilt 2006
Length93.8 ft28.6 m
Daily traffic120counted 2023
Last inspectedMarch 2023every 24 months

Location

StateIndiana
CountyPutnam
Location00.65 Mi E Of Cr275e
CarriesDevil Backbone RD
CrossesDeer Creek
Coordinates39.61047, -86.78743

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length93.8 ft (28.6 m)
Max Span90.9 ft (27.7 m)
Deck Width15.7 ft (4.8 m)
Deck Area137.3 sq m
Main Spans1
Year Built1906 (reconstructed 2006)

Traffic

Avg Daily Traffic120 (2023)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number6700131

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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