Structure 3136582 · Hamilton County, OH

Eighth Street over Mill Creek Rr Evans ST

Carries Eighth Street over Mill Creek Rr Evans ST, Viaduct W Of Int Dalton.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,730 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 6/9

2,730 ft end to end, longest span 75 ft: about 7.6 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 girder bridge.

Built192997 years old
Length2730.0 ft832.1 m
Daily traffic4,917counted 2015
Last inspectedOctober 2024every 12 months

Location

StateOhio
CountyHamilton
LocationViaduct W Of Int Dalton
CarriesEighth Street
CrossesMill Creek Rr Evans ST
Coordinates39.10510, -84.55089

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length2730.0 ft (832.1 m)
Max Span75.1 ft (22.9 m)
Deck Width69.9 ft (21.3 m)
Deck Area17723.7 sq m
Main Spans4
Year Built1929

Traffic

Avg Daily Traffic4,917 (2015)
Truck Traffic7%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number3136582

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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