I-4 EB over SR-585 21ST & 22ND St

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

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

• I-4 EB over SR-585 21ST & 22ND St 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 2006, making it 19 years old at the 2025 inventory.
• It carries about 86,000 vehicles a day (traffic count year 2024).
• Its listed owner is the state highway agency.
• 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.

View this bridge on a map → (27.96467, -82.43516)

Component ratings

Bridge details

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

Busiest bridges in Hillsborough County

All bridges nearby: Hillsborough County, FL bridge conditions · every bridge in Hillsborough County · Florida bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.