Infrastructure and Public Works Construction Permits in South Florida – Miami-Dade, Broward and Palm Beach County 2026

Infrastructure and public works construction permits in South Florida govern a critical category of construction that includes bridges, roadways, utility systems, stormwater infrastructure, water treatment facilities, and all other public works projects. While much of this work is performed by or for government agencies, private developers are also frequently required to construct public infrastructure as a condition of development approval — including road improvements, sidewalks, drainage improvements, and utility main extensions. Understanding infrastructure permit requirements is essential for large-scale development projects in Miami-Dade County, Broward County, and Palm Beach County.

Why Infrastructure Permits Are Required

Public infrastructure serves the entire community. A poorly designed or constructed bridge can collapse and kill people. Inadequate stormwater infrastructure causes neighborhood flooding. Contaminated utility mains affect public health. Infrastructure permits ensure that all public works construction is performed by qualified contractors to engineered specifications, with government inspection at every critical stage.

Infrastructure and Public Works Permit Types in South Florida

Bridge and Culvert Permit covers the construction of bridges over waterways, drainage culverts under roads, and box culverts. Bridge construction requires extensive structural engineering, hydraulic analysis for flood flow capacity, environmental impact assessment for waterway impacts, and coordination with the Florida Department of Transportation (FDOT) for state road crossings and with the Army Corps of Engineers for waterway permits.

Roadway Construction Permit covers the construction of new streets, road extensions, intersection improvements, and road widening projects. Private developers who construct public roads as part of development approvals must obtain roadway permits from the applicable county public works department or municipal engineering department. FDOT permits are required for work on state roads and highways.

Sidewalk and Shared-Use Path Permit covers the construction of new sidewalks, bicycle paths, multi-use trails, and Americans with Disabilities Act (ADA) accessible pedestrian facilities. Sidewalks within public rights-of-way require permits from the applicable county or municipal public works department.

Utility Main Extension Permit covers the extension of water, sewer, and storm drain mains into new development areas. Water main extensions require permits from Miami-Dade Water and Sewer (WASD), Broward County Utilities, or Palm Beach County Water Utilities as applicable, in addition to local building department permits.

Water Treatment Plant Construction Permit covers the construction and expansion of potable water treatment facilities, which require permits from FDEP's Division of Drinking Water and from local building departments.

Wastewater Treatment Plant Permit covers the construction, expansion, and modification of wastewater treatment plants, which require FDEP permits in addition to local building permits.

Stormwater Management Facility Permit covers the construction of retention and detention ponds, swales, dry retention areas, wet retention ponds, underground exfiltration trenches, and other stormwater management infrastructure. SFWMD Environmental Resource Permits are required for stormwater management systems above certain size thresholds.

Pump Station Permit covers water, wastewater, and stormwater pump station construction. Pump stations require both local building permits and utility agency permits.

Electric Substation Permit covers the construction of FPL or other utility substations. Electric utility substations require local building permits, FDOT permits for access connections, and utility company project approvals.

Telecommunications Infrastructure Permit covers the installation of cell towers, fiber optic conduit systems, and other telecommunications infrastructure. Cell tower permits require both building permits and zoning approvals, and may trigger environmental review under the National Environmental Policy Act (NEPA) for towers on or near federally regulated land.

Florida Department of Transportation (FDOT) Permits

Construction activities that affect state roads, federal highways, or FDOT-maintained bridges in South Florida require FDOT permits in addition to local building permits. FDOT District 6 serves Miami-Dade County: (305) 470-5100. FDOT District 4 serves Broward and Palm Beach Counties: (954) 777-4100. Types of FDOT permits include: Driveway connection permits (connecting private property to state roads), Utility accommodation permits (installing utilities within FDOT rights-of-way), Construction within FDOT rights-of-way permits.

Miami-Dade County Public Works Permits

Miami-Dade Public Works and Waste Management Department issues right-of-way permits, roadway permits, and utility permits for work in county-maintained roads and rights-of-way: (305) 592-3370, miamidade.gov/publicworks.

Miami-Dade Water and Sewer Department (WASD) issues permits for water and sewer main connections and extensions: (786) 268-5000, miamidade.gov/water.

Broward County Public Works Permits

Broward County Highway Construction and Engineering Division: (954) 847-2600. Broward County Environmental Engineering Division (water and sewer utilities): (954) 831-0850.

Palm Beach County Public Works Permits

Palm Beach County Engineering and Public Works Department: (561) 684-4000. Palm Beach County Water Utilities Department: (561) 493-6000.

South Florida Water Management District (SFWMD)

SFWMD regulates water management infrastructure across a 16-county region in South Florida. Major drainage and flood control infrastructure — including canals, pump stations, and water control structures — are managed by SFWMD and require SFWMD permits for any modifications or connections. SFWMD: (800) 432-2045, sfwmd.gov.

Infrastructure Construction USD Costs and Timelines

Infrastructure construction costs in South Florida vary enormously by project type. Bridge construction: $1 million to $50+ million USD depending on span length and water depth. Major road construction: $1 million to $5 million USD per lane-mile. Water main extension: $200 to $500 per linear foot USD. Infrastructure permits are complex and multi-agency, with total permitting timelines of 1 to 5 years for major infrastructure projects.