The Florida Department of Transportation (FDOT) completed a roadway improvement project on May 9, 2025, along SR 5/US 1/Overseas Highway, in Monroe County.

WORK TO BE PERFORMED

SR 5/US 1/Overseas Highway from MM 19.4 to MM 19.8, MM 20.6 to MM 23.1:

• Repaving and restriping the roadway SR 5/US 1/Overseas Highway and the Florida Keys Overseas Heritage Trail
• Raising the roadway  
• Improving the guardrail
• Upgrading signage and pavement markings
• Widening the roadway shoulders in some areas  
• Improving drainage at isolated locations
• Trimming the mangroves encroaching the roadway

SR 5/US 1/Overseas Highway from MM 26.2 to MM 27.4:

• Repaving and restriping the roadway SR 5/US 1/Overseas Highway and the Florida Keys Overseas Heritage Trail
• Raising the roadway
• Reconstructing the shared use path
• Improving the guardrails
• Upgrading all vehicular signage and pavement markings
• Enhancing pedestrian signage
• Installing special emphasis crosswalk markings at the trail crossings
• Adjusting manholes

LANE CLOSURE INFORMATION

• Travel lanes may be closed only during non-peak hours on non-event days.