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FLOOD PROTECTION PROJECTS

MORGANZA TO THE GULF HURRICANE PROTECTION PROJECT

SUMMARY OF PROJECT FEATURES

COMPLETED PROJECTS:

 Lower Point-aux-Chenes Hurricane Levee Reach J – Segment 1:  This project consists of a 2.8-mile levee segment, connecting to existing TPCG (Terrebonne Parish Consolidated Government) Drainage Levees in the Point Aux Chenes area.  It was initially constructed to a +8 foot elevation providing interim protection to the communities of lower Terrebonne.  This project was completed in April, 2008.  Immediately after Hurricane Gustav, the TLCD lifted this levee by an additional two feet.  Current elevation is approximately +10.

CURRENT PROJECTS:

Reach H – Segment 3 (2.8 miles):  This project consists of a 2.8 mile levee segment below Bush Canal in the Chauvin area.  It will intially be constructed to a +10 foot elevation providing interim protection to the community of Chauvin and the Lake Boudreaux area.  This project is currently in the construction phase with an estimated completion date of April 2009.

Lower Point-aux-Chenes Hurricane Levee Reach J – Segment 2:  This project consists of a 5.5-mile levee section, connecting to the floodgate on Humble Canal to the northern end of Levee Reach J – Segment I on Bayou Pointe-aux-Chenes.  This levee, as part of the Morganza to the Gulf Hurricane Protection System will provide protection to the communities of Montegut and lower Terrebonne.  This project is in the design phase and scheduled for construction to commence in March 2009.

 Reach H-2 Levee:  This levee reach begins at Placid Canal and continues south parallel to Bayou Little Caillou for approximately four miles.  This levee will connect Levee Reach H-3 with the floodgate at Bayou Little Caillou.  This levee will be constructed in June, 2009 with an estimated project cost of $15 Million.

 Bush Canal Floodgate:  This floodgate will be constructed at the intersection of Bush Canal and Bayou Terrebonne.  This structure will consist of a 56’ floodgate with three-45’ Tainter gates.  This structure will connect Reach H with Reach I, and will be constructed in December, 2009, with an estimated cost of $40 Million.

Placid Canal Floodgate:  This structure will be built in Placid Canal between Levee Reaches H-3 and H-2, along Bayou Little Caillou.  This structure will be a 56’ floodgate, and will provide protection to the communities of Chauvin and Dulac.  This structure will be built in December, 2009 and has an estimated cost of $18 Million.

Bayou Pointe-aux-Chenes Floodgate:  This project is a 56’ sector gate and other associated improvements near the intersection of Bayou Pointe-aux-Chenes and the Cut Off Canal and will ultimately provide protection to the communities of Pointe-aux-Chenes, Montegut and lower Terrebonne and Lafourche.  Construction of this structure will provide a closed system of protection to the lower Pointe-aux-Chenes area.  This project is in the design phase with the structure construction commencing in December 2009.  The estimated cost of this structure is $15 Million.

Houma Navigation Canal Access Road and Bridges: The LA DOTD is responsible for designing two replacement bridges (Mayfield Road Bridge and DOTD’s HWY 3011 bridge) and an Access Road for the HNC Lock. This work, once complete, will assist the Corps in moving materials and equipment to the project site once authorized for construction.  The cost of these efforts is estimated to be $15 Million, and is scheduled to begin construction in December, 2009.

Reach J – Segment III:  This levee reach is approximately 1.3 miles in length, beginning at Island Road, and ending at the end of Highway 665 in Pointe-aux-Chenes, following TPCG Forced Drainage Levee 4-3B.  It will provide protection to the community of Pointe-aux-Chenes.  This levee was lifted approximately two feet under emergency declaration immediately following Hurricane Gustav.

Reach E: This reach is approximately 3.5 miles long, and parallels Falgout Canal from Bayou Dularge to the Houma Navigational Canal. The levee would be just South of the parish road. The first lift will be built to an elevation of +10.

Reach F:  This reach is approximately 3.5 miles long, and will parallel the Houma Navigation Canal south from Falgout Canal Road to Bayou Grand Caillou, and then from Bayou Grand Caillou to the Houma Navigational Canal structure site. It will be built to an elevation of +10.

 Reach G:  This reach is approximately 4 miles long, and proceeds east ward from the Houma Navigation Canal Structure site. This levee generally proceeds east until it intersects with La Hwy. 57. It follows this highway for a short distance before terminating at levee reach H1. The initial lift will be built to an elevation of +10.