Structure 3105946 · Hamilton County, OH

SB Ir 71 over Usr 42

Carries SB Ir 71 over Usr 42, Oh-ky Line.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,683 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

2,683 ft end to end, longest span 127 ft: about 7.5 football fields. Lengths and the semi-truck 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.

Built196363 years old
Length2683.1 ft817.8 m
Daily traffic67,393counted 2015
Last inspectedSeptember 2024every 12 months

Location

StateOhio
CountyHamilton
LocationOh-ky Line
CarriesSB Ir 71
CrossesUsr 42
Coordinates39.09304, -84.52262

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2683.1 ft (817.8 m)
Max Span127.0 ft (38.7 m)
Deck Width40.0 ft (12.2 m)
Deck Area9977.2 sq m
Main Spans40
Year Built1963

Traffic

Avg Daily Traffic67,393 (2015)
Truck Traffic15%
Lanes On Bridge3
Lanes Under Bridge8

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number3105946

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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