1 November 07 Public Meeting IER 12 13 14 15 16 17 - NOLA ...

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1 November 07 Public Meeting IER 12 13 14 15 16 17 - NOLA ...

100 YearHurricane Protection ProjectWest Bank and Vicinity• Project Status Meeting• Environmental Compliance• Project ManagementNovember 1, 2007 1:00 – 6:00 pmPontchartrain CenterKenner, LA


West Bank and Vicinity Hurricane Protection Project


Western Tie- In - IER 16Alternative 1


Western Tie- In - IER 16Alternative 2


Western Tie- In - IER 16Alternative 3


IER 15 Lake Cataouatche LeveesCurrent project alignment: LeveeFloodwall


WBV-17b.2 Sta 160+00 to Hwy 90 Levee EnlargementAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsEarthen levee section (landside shift) in right of wayIncludes wave berm, stability berm and armoring


WBV-18.2 Lake Cataouatche Pump Station to Hwy 90 LeveeEnlargementAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsEarthen levee section (landside shift) to elevation +15 in right of wayIncludes wave berm, stability berm and armoringCurrently under construction to elevation +11


WBV-15a.2 Lake Cataouatche Pump Station of Segnette StatePark Levee EnlargementAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsEarthen levee section (landside shift) to elevation +15 in right of wayIncludes wave berm, stability berm and armoringCurrently under construction to elevation +12


IER 17 Bayou Segnette and Company Canal


IER 14 Westwego to Harvey Levees and FloodwallsCurrent project alignment: LeveeFloodwall


WBV-14c.2 New Westwego Pump Station to Orleans VillageLevee EnlargementAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsEarthen levee section to elevation +14 in right of wayMay require geotextile fabric and/or soil mixing


WBV-14b.2 Orleans Village to Hwy 45 Levee EnlargementAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsEarthen levee section (landside/floodside shift) to elevation +14 in right of wayMay require geotextile fabric and/or soil mixingCurrently under constructionto elevation +12


WBV-14f.2 Hwy 45 Levee EnlargementAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsEarthen levee section (floodside shift) to elevation +14 in right of wayMay require geotextile fabric and/or soil mixing


WBV-14d V Line FloodwallAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsReplace I-Wall with T-WallRamp at Lafitte Larose Hwy and replace Floodgate at Hwy 45ReplaceFloodgateProposed Ramp


WBV-14e.2 V Line Levee East of Vertex Levee EnlargementAlternatives: Levee Enlargement (straddle, landside or floodside shift) and floodwallsEarthen levee section (landside shift)May require relocation of drainage canal, geotextile fabric and/or soil mixing


Status of On-going ConstructionHarvey Canal Floodgate• Harvey Floodgate Operational• Protection across canal +8• Protection across canal byJun 2008 +11Cousins Pump StationDestrahan AveLapalco BridgeHarvey CanalFloodgate


Harvey Canal Floodwalls5 Task Orders under one Construction ContractorReach 1 Lapalco to BoomtownReach 2a BoomtownReach 2b Boomtown to Hero Pump Station(Under Construction)Reach 3a Hero Pump StationReach 3b Hero Pump Station to Algiers Canal


Upcoming ConstructionAlgiers Canal Levee• Raise existing levee alongthe west bank of the AlgiersCanal from Hero Cutoff toBelle Chasse Hwy.• Beginning November2007, levees will be raisedto elevation + 10.Harvey CanalAlgiers CanalHero Cutoff


IER 12 Harvey and Algiers CanalCurrent project alignment: LeveeFloodwall


Algiers and Harvey Canal Area – 100-Yr ProtectionAlternative: Parallel ProtectionLapalco Floodgateand Cousins PSDischarge ChannelWalls (raised to provide100 yr level of protection)Levees and Floodwallsat elevation to provide100 yr level of protection


Algiers and Harvey Canal Area – 100-Yr ProtectionAlternative: Floodgate on Algiers CanalSector floodgate inthe Algiers Canalto the 100 yr levelof protectionLapalco Floodgateand Cousins PSDischarge ChannelWalls (raised to provide100 yr level of protection)Levees and Floodwalls to thepreviously authorized levelof protectionLevees and Floodwalls to the100 yr level of protection


Algiers and Harvey Canal Area – 100-Yr ProtectionAlternative: Floodgates on Algiers and Harvey CanalsSector floodgates in theHarvey and AlgiersCanal to the 100 yr levelof protectionLapalco Floodgate and Cousins PSDischarge Channel Walls atpreviously authorized level ofprotectionLevees and Floodwalls to thepreviously authorized levelof protection or greaterLevees and Floodwalls to the100 yr level of protection


IER 13 Hero to Oakville Levees and FloodwallsCurrent project alignment: LeveeFloodwall


Hero CanalWest Bank and Vicinity Hurricane Protection ProjectHero Canal LeveeHarvey CanalAlgiers Canal


Hero to Oakville (eastern tie-in) – 100 Yr ProtectionAlternative 1: Floodwalls and Levees Leaving Landfill Exposed andOakville ProtectedHERO HERO CANAL CANALLA. HWY 23LA. HWY 23OAKVILLE OAKVILLEMISSISSIPPI RIVERMISSISSIPPI RIVER


Hero to Oakville (eastern tie-in) – 100 Yr ProtectionAlternative 2: Floodwalls and Levees Leaving Landfill Exposed andOakville ProtectedHERO HERO CANAL CANALLA. HWY 23LA. HWY 23OAKVILLE OAKVILLEMISSISSIPPI RIVERMISSISSIPPI RIVER


Hero to Oakville (eastern tie-in) – 100 Yr ProtectionAlternative 3: Floodwalls and Levees Leaving Landfill and OakvilleExposedHERO HERO CANAL CANALLA. HWY 23LA. HWY 23OAKVILLE OAKVILLEMISSISSIPPI RIVERMISSISSIPPI RIVER


OAKVILLEHero to Oakville (eastern tie-in) – 100 Yr ProtectionAlternative 4: Floodwalls and Levees with Navigation Gate – Landfilland Oakville ProtectedHERO CANAL66’ Wide NavigableSector Gate andPumping StationLA. LA. HWY 23 23MISSISSIPPI MISSISSIPPI RIVER RIVER


West Bank and VicinityHurricane Protection ProjectJulie VignesSenior Project ManagerStuart WaitsSenior Project ManagerPRO Hurricane Protection FloodwallsMike Stack, JrProject ManagerTim ConnellProject ManagerGib OwenHurricane Protection SystemEnvironmental Coordinator

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