Port St. Lucie’s unconventional beginnings — without a traditional downtown or employment hub — led to decades of out-commuting and limited access to high-paying local jobs. To reverse this trend, City leaders envisioned the Southern Grove Jobs Corridor, a 1,200-acre tract along Interstate 95 that could redefine the City’s economic future. Though experts projected a 30-year build-out, today, fewer than 20 acres remain available. The latest acquisition, a Costco retail store, has been on...