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I-4 WB to SR618 WB over CSX RR & SR-60

Hillsborough County, Florida · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

I-4 WB to SR618 WB over CSX RR & SR-60 in Hillsborough County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2013, making it 12 years old at the 2025 inventory.
It carries about 1,596 vehicles a day (traffic count year 2023).
It is one of 576 of the 845 inventoried bridges in Hillsborough County rated good (68.2%); 3 (0.4%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Continuous prestressed concrete segmental box girder
Length	about 1,069 ft
Location	0.1MI S of Gantry Structu
NBI structure number	100716
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.

Bridge	Built	Vehicles/day	Condition
I-275 (SR-93) over Hillsborough River	1964	250,000	Fair
I-275 NB (SR-93) over Hillsborough River	1964	250,000	Fair
I-4 WB over Palm Avenue	1963	236,000	Good
I-275 NB (SR-93) over Palm Avenue	1963	236,000	Fair
I-275 SB (SR-93) over Business Us-41(sr-685)	1964	222,000	Fair
I-275 NB over Cypress Street	2015	210,000	Good