1. Bayou Dupont Sediment Delivery – Marsh Creation #3 (BA-164)
Catherine Ricks, P.E.
Engineering
May 6, 2014
committed to our coast
committed to our coast

2. Coastal Protection and Restoration Authority of Louisiana
Presentation Outline
Project Background
Project Overview Map
Borrow Areas
Project Schedule Overview
Summary
Coastal Protection and Restoration Authority of Louisiana

3. Coastal Protection and Restoration Authority of Louisiana
Project Background
Bayou Dupont Sediment Delivery – Marsh Creation #3 (BA-164)
CWPPRA PPL #22
Project Approved in 2013
Cells located in Jefferson and Plaquemines Parish
Project proposed to utilize sediment from the Mississippi River to nourish an area of open water and marsh remnants to complement existing restoration projects
Primary goal is to create just over 400 acres of marsh
Coastal Protection and Restoration Authority of Louisiana

4. Coastal Protection and Restoration Authority of Louisiana
Potential Borrow Areas
Bayou Dupont #3
Overview
Existing and
Under Construction
Restoration Projects
Project extents
Located in Plaquemines Parish between Gulf of Mexico and Bastian Bay to the west of Empire WW
BA-39 constructed in 2010
Bayou Dupont #3
(BA-164)
Coastal Protection and Restoration Authority of Louisiana

5. Coastal Protection and Restoration Authority of Louisiana
Bayou Dupont #3
Plaquemines
Parish
Jefferson
Parish
Most of the area is open water
In the E&D process we are considering unconfined or partially unconfined fill cells. Constructability wise which would be preferable?
Bayou Dupont #3
(BA-164)
Coastal Protection and Restoration Authority of Louisiana

6. Coastal Protection and Restoration Authority of Louisiana
Project Features – Mississippi River Borrow Areas
Wills Point
2.38 MCY (based on BA-48/ Long Distance design surveys)
Cut depths to -90’ NAVD88
45.2 acres
Alliance Anchorage
7.1 MCY (based on BA-48/ Long Distance design surveys)
Cut depths to -90’ NAVD88
144.3 acres
Wills Point: 45.2 acres, 2,800 feet long, feet wide
Alliance Anchorage: acres, 7,010 feet long, feet wide
Myrtle Grove: 168 acres, 9,100 feet long, feet wide
Myrtle Grove
Potential 7.9 MCY to -90’ NAVD88
168 acres
Coastal Protection and Restoration Authority of Louisiana

7. Coastal Protection and Restoration Authority of Louisiana
Project Schedule
Tasks Completed:
Borrow Area Surveys
Wills Point – Bathy, mag and geotech: 2012; Cultural Resource: 2011
Alliance Anchorage – Bathy: 2011; Geotech: 2012
Myrtle Grove – Bathy, mag and Cultural resource: 2012
Fill Area Bathymetric and Topographic Surveys – March and April 2014
Applied for Geotechnical Permit – February 2014
Received Geotechnical CUP – March 2014
Waiting on COE Geotechnical Permit
Future Tasks:
Geotechnical Investigation and Final Report (Fill Area) – July 2014
Apply For Coastal Use Permit (State and COE) – September 2014
Engineering and Design – October 2014
Apply for LDWF Fill Material Permit – October 2014
Wills Point (CR October 2011, Bathymetric (multibeam) and Mag August 2011, Geotech – 2 borings June 2012)
Alliance Anchorage (Bathy August 2011, Geotech – 2 borings June 2012)
Myrtle Grove (Bathy, Mag, and CR January 2012)
Coastal Protection and Restoration Authority of Louisiana

8. Coastal Protection and Restoration Authority of Louisiana
Project Summary
Area of Fill: 410 acres
E&D in process
Will Compete for Construction Funding in Winter 2014
Coastal Protection and Restoration Authority of Louisiana

9. Coastal Protection and Restoration Authority of Louisiana
QUESTIONS
Coastal Protection and Restoration Authority of Louisiana