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Old State Road 4A over Sugarloaf Creek

Monroe County, Florida · rated Fair in the 2025 National Bridge Inventory

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

Old State Road 4A over Sugarloaf Creek in Monroe County, Florida, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1968, making it 57 years old at the 2025 inventory.
It carries about 617 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 61 of the 98 inventoried bridges in Monroe County rated fair (62.2%); 5 (5.1%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings

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

Bridge	Built	Vehicles/day	Condition
US 1 (SR 5) over Rockland Channel	1979	47,000	Good
US 1 (SR 5) over Salt Run	1992	38,500	Fair
US 1 (SR 5) over Naval Base Blvd	1988	27,500	Good
US 1 (SR 5) over Jewfish Creek	2008	26,500	Good
US 1 (NB & SB) over Manatee Creek	2008	26,500	Fair
US-1 (SR-5) over Vaca Cut	1982	25,000	Fair