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SR 570 Polk EB 8.7 over Lakeland Highlands Rd

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

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

SR 570 Polk EB 8.7 over Lakeland Highlands Rd 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 1999, making it 26 years old at the 2025 inventory.
It carries about 21,350 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 148 ft
Location	8.9 Mi East of I-4 West
NBI structure number	160262
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