Structure 154155 · Pinellas County, FL

Cr-611 SB over Tarpon Cnl & Old Tpa RD

Carries Cr-611 SB over Tarpon Cnl & Old Tpa RD, Mcmullen Booth/old Tampa.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,104 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

1,104 ft end to end, longest span 147 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.

Built199135 years old
Length1104.3 ft336.6 m
Daily traffic60,000counted 2024
Last inspectedJuly 2024every 24 months

Location

StateFlorida
CountyPinellas
LocationMcmullen Booth/old Tampa
CarriesCr-611 SB
CrossesTarpon Cnl & Old Tpa RD
Coordinates28.06206, -82.71075

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1104.3 ft (336.6 m)
Max Span147.0 ft (44.8 m)
Deck Width42.7 ft (13 m)
Deck Area4375.8 sq m
Main Spans10
Year Built1991

Traffic

Avg Daily Traffic60,000 (2024)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number154155

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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