Structure 5709075 · Montgomery County, OH

Ir-75 over Ir 75 Ramp G

Carries Ir-75 over Ir 75 Ramp G, Ramp G I70 & I-75 Intchg.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

74 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 multi-beam bridge.

Built200818 years old
Length73.8 ft22.5 m
Daily traffic60,405counted 2015
Last inspectedSeptember 2023every 24 months

Location

StateOhio
CountyMontgomery
LocationRamp G I70 & I-75 Intchg
CarriesIr-75
CrossesIr 75 Ramp G
Coordinates39.86340, -84.18901

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length73.8 ft (22.5 m)
Max Span71.9 ft (21.9 m)
Deck Width125.0 ft (38.1 m)
Deck Area857.2 sq m
Main Spans1
Year Built2008

Traffic

Avg Daily Traffic60,405 (2015)
Truck Traffic14%
Lanes On Bridge6
Lanes Under Bridge1

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number5709075

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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