Recently Waggoner completed the design of the Bayou DuLarge Ridge Marsh and Hydrologic Restoration Project for the Natural Resources Conservation Service (NRCS). This RESTORE project located in Terrebonne Parish includes all facets of data collection and design for a coastal project. Work included control, topographic, bathymetric, magnetometer, and geophysical surveys using Louisiana Coastal Protection and Restoration Authority (CPRA) standards; hydraulic and hydrologic modeling; geotechnical field investigations, lab testing, and analysis in accordance with CPRA guidelines; marsh creation designed to CPRA Marsh Creation Design Guidelines standards; ridge restoration; and over 1,000 feet of anchored sheet pile salinity control structures through water depths up to 45 feet. Our team prepared construction plans, specifications, construction cost and schedule estimates, and final reports.

CPRA is repurposing this project and has transformed it into Bayou DuLarge Ridge Restoration and Marsh Creation project. The project is being modified to include 22,500 feet of ridge restoration, 505 acres of marsh creation, a new northern equipment access route to avoid disturbance to a Louisiana Department of Wildlife and Fisheries oyster reserve in Caillou Lake and removal of the salinity control structure from the project. Waggoner and our partners SSE and Intracoastal are tasked with the redesign, construction plan preparation, permit assistance and bid document support. The construction estimate for this project is $62 million.