For residents of southern Port St. Lucie, the orange barrels have felt like a permanent part of the landscape. However, February 2026 marks a pivotal turning point for the Port St. Lucie Boulevard South Widening Project.
The long-awaited expansion—intended to transform the corridor from a two-lane bottleneck into a four-lane multimodal highway—is entering its final phases. While some stretches are celebrating the “finish line,” others are just beginning a new chapter of construction chaos.
1. The Gatlin-to-Darwin Victory Lap
As of early 2026, the Segment 3 (Gatlin Blvd to Darwin Blvd) project is finally being uncorked.
Four-Lane Expansion: Motorists can now enjoy a four-lane divided roadway with an 18-foot landscaped median.
Multimodal Upgrades: This section now features 10-foot wide sidewalks and dedicated bike lanes, fulfilling the city’s 2045 Mobility Plan.
Signalization: New mast-arm signals at SW Tulip Blvd and SW Tunis Ave are fully operational, replacing the temporary setups that plagued commuters throughout 2025.
2. The New “Gridlock Hotspots”: Paar Drive Widening
As one section opens, another tightens. The focus for 2026 has officially shifted to Segment 2 (Paar Drive to Alcantarra Blvd).
The “Paar Squeeze”: In January 2026, full road closures began between SW Paar Dr and SW Jordin Ave for drainage and utility installation. This is the new epicenter of morning delays.
Roundabout Fever: Construction is ramping up for the proposed roundabouts at SW Paar Drive & SW Darwin Blvd and SW Paar Drive & SW Savona Blvd. Expect lane shifts and “flagger” delays as crews prep these intersections for increased capacity.
Nighttime Closures: Most major utility work is scheduled for 9:00 PM to 5:00 AM, but daytime “equipment lag” is still causing backup toward the Darwin Square shopping center.
3. The 2026 Project Status Breakdown
Navigating PSL Blvd South requires knowing where the “Finish Line” actually stands for each segment.
| Segment | Area | 2026 Status | Projected Completion |
| Segment 3 | Gatlin to Darwin | OPEN | Final Landscaping Feb 2026 |
| Segment 2.1 | Alcantarra to Darwin | Under Construction | Fall 2026 |
| Segment 2.2 | Paar to Alcantarra | Under Construction | Fall 2028 |
| Segment 1 | Becker to Paar | Design/Land Acquisition | TBD (Post-2027) |
4. Survival Guide for the 2026 Detours
If you frequent the southern end of the city, your 2026 GPS should favor these alternatives:
The Jordin Detour: When PSL Blvd is closed near Paar, use SW Jordin Avenue to connect to SW McIntyre Street or SW McIntosh Street.
The Savona Alternative: Savona Blvd remains the best North-South bypass to avoid the heavy machinery moving between Alcantarra and Darwin.
The Becker Loop: For those heading to I-95, sticking to Becker Road and avoiding the Paar intersection entirely remains the fastest route, despite the extra mileage.
Conclusion: A City in Motion
The “Finish Line” for the Gatlin-to-Darwin stretch is a massive win for Port St. Lucie’s infrastructure, but the 2026 construction shift to Paar Drive proves that the city’s growing pains aren’t over yet. While the $25.6 million expansion project will eventually provide a seamless flow from Gatlin to Becker, the next 24 months will require patience and a few clever detours.