Structure 155000 · Pinellas County, FL

Winston DR over Graff Canal

Carries Winston DR over Graff Canal, 150yd W Of Bluff View Dr..

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

25 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 slab bridge.

Built1950rebuilt 1984
Length25.3 ft7.7 m
Daily traffic300counted 2025
Last inspectedJanuary 2025every 24 months

Location

StateFlorida
CountyPinellas
Location150yd W Of Bluff View Dr.
CarriesWinston DR
CrossesGraff Canal
Coordinates27.92489, -82.82237

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length25.3 ft (7.7 m)
Max Span25.3 ft (7.7 m)
Deck Width28.5 ft (8.7 m)
Deck Area67.0 sq m
Main Spans1
Year Built1950 (reconstructed 1984)

Traffic

Avg Daily Traffic300 (2025)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number155000

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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