The Underline Phase 3

Phase 3 will feature numerous bioswales, green infrastructure, and below-ground drainage that will help with stormwater flooding and runoff. 

It will also feature 400,000 native vegetation including 3,000 trees, plants and grasses that support The Underline master plan restoration of the Pine Rockland, Hardwood Hammock, Pollinator and Wet Prairie ecosystems.

Tree protection, relocation, or replacement: Part of pre-construction efforts include the removal and relocation of trees along the Phase 3 segment. In preparation for this work, trees that remain are protected by orange fencing. For trees being relocated or replaced, informational tags with QR codes will be on those trees prior to any project work.

• Safe biking and walking paths, lighting, and improved crosswalks
• Resting areas along the path with oolitic limestone boulders or benches
• Hydration stations in the amenity areas
• Bike racks and repair stations in various locations
• Dog-friendly features at each amenity area
• Trash and recycling receptacles throughout the corridor
• LED lighting that is Dark Sky compliant
• Green infrastructure: Bioswale native landscaping with natural infiltration planting
• Free Wi-Fi service
• Public art
• Programmable areas for numerous public events, cultural, educational, and health and wellness programs
• Micromobility hub
• Improvements to 24 intersections along US1

Phase 3 is expected to be completed in 2026. Once all three phases are completed, The Underline will be Miami-Dade County’s first true mobility corridor uniting all modes of transportation and enhancing accessibility to eight Metrorail stations within its path and the neighboring communities.