Structure 100910 · Hillsborough County, FL

Us-301 SB (sr-43) over Csx Rr

Carries Us-301 SB (sr-43) over Csx Rr, 0.3 Mile North Of Sr-60.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT175 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

175 ft end to end, longest span 35 ft: about 2 semi-trucks nose to tail. 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 tee-beam bridge.

Built1937rebuilt 1971
Length175.2 ft53.4 m
Daily traffic33,500counted 2023
Last inspectedMarch 2023every 24 months

Location

StateFlorida
CountyHillsborough
Location0.3 Mile North Of Sr-60
CarriesUs-301 SB (sr-43)
CrossesCsx Rr
Coordinates27.95304, -82.35488

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length175.2 ft (53.4 m)
Max Span35.1 ft (10.7 m)
Deck Width40.7 ft (12.4 m)
Deck Area662.2 sq m
Main Spans5
Year Built1937 (reconstructed 1971)

Traffic

Avg Daily Traffic33,500 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number100910

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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