Engineers Rd./Cazalard Rd. 1
Engineers Rd./Cazalard Rd. Map
  • ClientPlaquemines Parish Government
  • LocationPlaquemines Parish, LA
  • Cost$3.4M

Key Services:

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

Trigon is the prime engineer for study, engineering, design and construction services for $3M of Hazard Mitigation drainage work.

Consists of evaluating a 100+ acre drainage basin – multiple open canals and ditches (approximately 3,000 LF), culvert crossings of major roadways and railroads, subsurface drainage, and a temporary pump station. Included necessary surveying and data collection, a hydrologic and hydraulic (H&H) study, identification of improvements, preparation of a preliminary cost estimate, and preliminary and final engineering design services. Preliminary design was recently completed
Improvements generally include:
• Replace surface and subsurface system (inlets, catch basins, pipes) along two residential/ commercial streets.
• Construct weir/overflow structure, new concrete channel and box culvert, suction basin and 60 cfs pump station with Parish-owned submersible pumps.
• Clean numerous culverts clogged with debris.
• Clean/re-grade multiple earthen ditches and canals.
• Install new 54-inch culvert under major roadway via trenchless method.
• Replace multiple culverts from 18 to 72 inches in size.
• Replace failing steel sheet pile wall with new structure.
• Install multiple box culverts, 6’ x 6’ to 10’ x 6’ in size.

Services provided as part of this project include:
• Study & Assessment—H&H study to assess existing hydraulic capacity, identify corrective measures to handle 10-, 25-, 50- and 100-year storm events, and prepared a report summarizing results and conceptual-level cost estimates.
• Preliminary Design—refinement of remedial measures, construction contract packaging, development of a Preliminary Design Report, and refined cost estimates.
• Final Design—preparation of detailed plans, specifications and cost estimates.
• Bid Phase Services—advertisement of contract, pre-bid conference, addenda preparation, bid tabulation and award recommendation.
• Engineering Services During Construction—review of submittals/shop drawings and responding to contractor requests for information and clarifications.

Trigon Logo

Global Reach. Local Impact.

Partner With Us Today

Contact Us

Trigon Associates
1515 Poydras Street, Suite 930
New Orleans, Louisiana 70112
P: (504) 585-5767
F: (504) 585-5747
[email protected]


About Us


Trigon Logo
Privacy Policy | Terms of Use
©2024 Trigon Associates
Website & Development by Voodoo Creative