Structure 100711 · Hillsborough County, FL

I-4 WB To 22 ST SB over Csx Rr Sr-618 & Sr-60

Carries I-4 WB To 22 ST SB over Csx Rr Sr-618 & Sr-60, 0.4mi S Of I-4 EB.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
5,060 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

5,060 ft end to end, longest span 236 ft: about 14 football fields. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 segmental box-girder bridge.

Built201313 years old
Length5060.0 ft1542.3 m
Daily traffic9,250counted 2023
Last inspectedDecember 2023every 24 months

Location

StateFlorida
CountyHillsborough
Location0.4mi S Of I-4 EB
CarriesI-4 WB To 22 ST SB
CrossesCsx Rr Sr-618 & Sr-60
Coordinates27.95263, -82.42650

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length5060.0 ft (1542.3 m)
Max Span235.9 ft (71.9 m)
Deck Width30.5 ft (9.3 m)
Deck Area14343.4 sq m
Main Spans31
Year Built2013

Traffic

Avg Daily Traffic9,250 (2023)
Truck Traffic11%
Lanes On Bridge1
Lanes Under Bridge23

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number100711

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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