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SR570 EB Polk 17.2 over US-92

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

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

SR570 EB Polk 17.2 over US-92 in Polk 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 1998, making it 27 years old at the 2025 inventory.
It carries about 9,100 vehicles a day (traffic count year 2022).
It is one of 199 of the 359 inventoried bridges in Polk County rated good (55.4%); 0 (0.0%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 184 ft
Location	17.4 Mi E of I-4 West Int
NBI structure number	160280
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-4 (SR-400) over Winston Drain	1999	127,000	Good
I-4 (SR-400) over Winston Creek	1999	127,000	Good
I-4 (SR-400) over Lake Gibson Drain Canal	1961	104,500	Fair
US-27 (SR-25) over I-4 (SR-400)	2004	72,576	Good
US-27 (SR-25) over Black Hills Canal	1965	56,000	Fair
US-27 (SR-25) over US-17 (SR-600)	2000	56,000	Good