Port Sulphur Wtp1
Port Sulphur WTP Damage

Port Sulphur Water Treatment Plant Post-Hurricane Damage Assessment & Improvements Design

  • ClientPlaquemines Parish Government
  • LocationPort Sulphur, LA
  • Cost$3.8M

Key Services:

  • Site Inspection & Assessments
  • Improvement Plans & Recommendations
  • Preparation of Construction Contract Documents
  • Cost Estimating
  • Bid/Award Phase Services
  • Construction Phase Services

Following significant impacts from Hurricane Ida, Plaquemines Parish Government (PPG) retained Trigon Associates as Prime Consultant to evaluate and restore the 3 MGD Port Sulphur Water Treatment Plant and its Raw Water Pump Station.

Trigon conducted a comprehensive assessment of process, mechanical, and electrical systems and delivered a detailed Damage Assessment Report outlining a phased restoration strategy. The approach prioritized returning critical systems to service quickly—allowing water treatment operations to resume at partial capacity while long-term repairs progressed. The report included implementation phasing, cost opinions, and clear next steps to support informed decision-making.

Based on the assessment, Trigon was subsequently selected to design the required improvements. Working in close coordination with Parish staff and their operations contractor, Trigon continuously updated design documents and cost estimates to reflect ongoing in-house repair efforts and evolving market conditions. The design incorporated alternate bid items and funding-sensitive strategies to maximize available resources and address long-lead procurement challenges.

The project was fully completed in 2025, restoring reliable operations while strengthening the long-term resilience of this critical public infrastructure.