Structure 904031 · Butler County, OH

SR 747 over Mill Creek

Carries SR 747 over Mill Creek, 2.37 Mi N Of Ham/but Line.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT87 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

87 ft end to end, longest span 33 ft. 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.

Built199432 years old
Length86.9 ft26.5 m
Daily traffic25,329counted 2015
Last inspectedMarch 2024every 12 months

Location

StateOhio
CountyButler
Location2.37 Mi N Of Ham/but Line
CarriesSR 747
CrossesMill Creek
Coordinates39.33707, -84.46207

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length86.9 ft (26.5 m)
Max Span33.1 ft (10.1 m)
Deck Width66.9 ft (20.4 m)
Deck Area540.6 sq m
Main Spans3
Year Built1994

Traffic

Avg Daily Traffic25,329 (2015)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0904031

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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