Structure 3117359 · Hamilton County, OH

SB Ir 471 over 1rr;us52;third ST Conn

Carries SB Ir 471 over 1rr;us52;third ST Conn, Oh-ky State 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
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,100 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

1,100 ft end to end, longest span 103 ft: about 3.1 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.

Built197650 years old
Length1100.1 ft335.3 m
Daily traffic50,933counted 2015
Last inspectedFebruary 2025every 12 months

Location

StateOhio
CountyHamilton
LocationOh-ky State Line
CarriesSB Ir 471
Crosses1rr;us52;third ST Conn
Coordinates39.10140, -84.49661

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1100.1 ft (335.3 m)
Max Span103.0 ft (31.4 m)
Deck Width78.1 ft (23.8 m)
Deck Area7980.1 sq m
Main Spans13
Year Built1976

Traffic

Avg Daily Traffic50,933 (2015)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number3117359

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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