Mon Louis Island/Delchamps Bayou

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Mon Louis Island Restoration Project: Advertisement for Bids - must be received by April 21, 2016

Addressing Immediate Threats to northern Mon Louis Island – Shoreline Stabilization and Habitat Creation 

Awaiting final permitting by the U. S. Army Corps of Engineers to begin the bidding process for construction, a plan has been developed by Thompson Engineering that will result in restoration of the receding shoreline and creation of approximately four acres of salt marsh habitat on northern Mon Louis Island, south of and adjacent to the mouth of East Fowl River.  The first step in the process will be construction of a rock breakwater positioned roughly along the 1995 footprint of the island.  A 50 foot-wide, temporary access channel will be constructed just leeward of the breakwater footprint with material side cast on the leeward side to allow construction of the +3.1 NAVD88 breakwater using #4 riprap with 1:2 slope and seaward toe protection.  As the breakwater construction progresses from south to north, the temporary channel will be replaced. When breakwater construction is complete, dredging activities will commence. 

Suitable sandy material (approximately 40,000 cubic yards) will be “borrowed” from the permitted, near shore USACOE Fowl River Open Water Disposal Area and hydraulically pumped over and behind the breakwater above grade to create approximately four acres of marsh substrate.

To mitigate the depression left after borrowing, Sen. Bill Hightower identified a funding source, an Alabama Deepwater Horizon Incident Grant of $800,000 that was subsequently secured, to finance dredging of the shallow Fowl River Navigation channel.  Material dredged from the channel will be beneficially used to replace material borrowed from the disposal area and avoid negative environmental impacts.  In this case, only one dredge mobilization and demobilization will be necessary to accomplish marsh creation fill and channel maintenance dredging, representing significant cost savings for accomplishing both tasks.

Upon issuance of the Corps permit, the bidding process for construction will begin.

*updated January 2016
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2012-13 Habitat Creation/Shoreline Stabilization at Mon Louis Island
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