Tennessee Tombigbee Waterway Development Opportunities Conference. FY 2008/2009/2010 O&M PROGRAM. * Includes $5.7M for Mooring Cells and Lock Closures * Includes $1.8M for Water Control Manuals * Includes $550K for Water Control Manuals * American Recovery and Reinvestment Act (ARRA)
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*Includes $5.7M for Mooring Cells and Lock Closures
*Includes $1.8M for Water Control Manuals
*Includes $550K for Water Control Manuals
*American Recovery and Reinvestment Act (ARRA)
**Received an additional $4 Million Supplemental Funding for Dredging
CG Federal $6M
CG Non-Federal $2M
ARRA Federal $16M
ARRA Non-Federal $5M
NOTE: Next Scheduled Lock Closures on the Tennessee-Tombigbee Waterway (2011) are Wilkins Lock, Bevill Lock and Heflin Lock.
Remove a portion of the island and dredge to elevation 116.0
Remove dogleg and 100 feet of existing spur dike
Dredge the upper approach to elevation 110.0
Construct a system of nine submerged bendway weirs
Relocate the Snagboat Montgomery
Tennessee-Tombigbee WaterwayCanal Section Levee Certification
20 August 2009
Authority – Public Law 79-525, 79th Congress, 2d Session, enacted July 24, 1946.
Two-way barge traffic, no provisions in the authorization for flood control protection . . .
Certification – no analyses exist that refute or demonstrate flood control performance; required analyses are extensive.
Hydraulics, geotechnical, vegetation compliance, O&M . . .
Vegetation – currently heavily wooded, can not certify unless vegetation and roots removed.
Would also require increased annual O&M to sustain levee requirements. . .
Vegetation Requirement, ‘Overbuilt’
Vegetation Requirement, ‘Typical’
Wildlife Mitigation – Wooded areas on levee are part of Tenn-Tom mitigation lands.
Clearing would likely require acquisition of replacement lands. . .