Structure 100715 · Hillsborough County, FL

NB 22 ST To EB I-4 over Csx Rr Sr-618 & Sr-60

Carries NB 22 ST To EB I-4 over Csx Rr Sr-618 & Sr-60, 0.4mi E Of 22nd St(us41b).

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,811 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 8/9

2,811 ft end to end, longest span 261 ft: about 7.8 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 segmental box-girder bridge.

Built201313 years old
Length2810.7 ft856.7 m
Daily traffic9,250counted 2023
Last inspectedDecember 2023every 24 months

Location

StateFlorida
CountyHillsborough
Location0.4mi E Of 22nd St(us41b)
CarriesNB 22 ST To EB I-4
CrossesCsx Rr Sr-618 & Sr-60
Coordinates27.95299, -82.42549

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length2810.7 ft (856.7 m)
Max Span260.8 ft (79.5 m)
Deck Width30.2 ft (9.2 m)
Deck Area7881.6 sq m
Main Spans16
Year Built2013

Traffic

Avg Daily Traffic9,250 (2023)
Truck Traffic11%
Lanes On Bridge1
Lanes Under Bridge12

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 Number100715

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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