Structure 203130 · Allen County, OH

SR 81 over Six Mile Creek

Carries SR 81 over Six Mile Creek, Sr81 1/2mi E Jct SR 66.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT54 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

54 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 box-beam bridge.

Built200026 years old
Length53.8 ft16.4 m
Daily traffic619counted 2015
Last inspectedSeptember 2023every 24 months

Location

StateOhio
CountyAllen
LocationSr81 1/2mi E Jct SR 66
CarriesSR 81
CrossesSix Mile Creek
Coordinates40.73608, -84.32346

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length53.8 ft (16.4 m)
Max Span50.9 ft (15.5 m)
Deck Width40.0 ft (12.2 m)
Deck Area200.1 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic619 (2015)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0203130

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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