Structure 1939734 · Darke County, OH

Childrens-home over Boyd Creek

Carries Childrens-home over Boyd Creek, .41 Mi E SR 49.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
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 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

26 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 slab bridge.

Built195769 years old
Length25.9 ft7.9 m
Daily traffic1,735counted 2015
Last inspectedJuly 2024every 12 months

Location

StateOhio
CountyDarke
Location.41 Mi E SR 49
CarriesChildrens-home
CrossesBoyd Creek
Coordinates40.13592, -84.64815

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length25.9 ft (7.9 m)
Max Span24.0 ft (7.3 m)
Deck Width25.9 ft (7.9 m)
Deck Area62.4 sq m
Main Spans1
Year Built1957

Traffic

Avg Daily Traffic1,735 (2015)
Truck Traffic7%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number1939734

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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