Building Strong!

IHNC SURGE BARRIER

GIWWMRGO

Building Strong!

Trestle ConstructionTrestle Construction

About 2000’ of trestle allows precision installation of piles and other components

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South Heading Soldier Pile South Heading Soldier Pile Placement – Placement – Complete!Complete!

1271 piles – Completed October 21, 2009

Weeks 526 Rig

144 Feet Long

66” Diameter, 94 tons

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Whirley Tower

North Heading Soldier Pile North Heading Soldier Pile Placement – Placement – Complete!Complete!

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18” Closure Piles & Jet Grouting18” Closure Piles & Jet Grouting

2544 piles – Completed February 11, 2010

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36” Steel Batter Piles- 36” Steel Batter Piles- Complete!Complete!

645 of 645 piles –Completed as of April 10, 2010

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Soldier, Closure, Batter PilesSoldier, Closure, Batter Piles

Closure Piles

Temporary Trestle

Batter Piles

Soldier Piles

Interstitial Space

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Space to be filled

4’ of almost pure grout

Excess material is pushed out of hole when closure pile is installed

Excess material functioning as armoring and reducing the amount of infill required

6 Foot core sample taken shows good contact between overflow material and injected material

Pile tip -45

Grout plume -55 to -85

Closure Pile

Soldier Pile

Interstitial Space-Interstitial Space-CompleteComplete

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66” Concrete Pile Clean Out- 66” Concrete Pile Clean Out- CompleteComplete

Drill bit removes the mud from inside the pile

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Precast CapsPrecast Caps

17 Feet Long, 96 Tons

306 of 306 Installed –Complete!

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Cast in Place Concrete SectionCast in Place Concrete Section

6 Feet Wide, 339 of 339 Cast – Complete

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Expansion JointExpansion Joint

17 of 17 Set Complete!

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Parapet WallParapet Wall

Complete

Cast in Place

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Protected Side of FloodwallProtected Side of Floodwall

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North T Wall ConstructionNorth T Wall Construction

• Located at the North end of the Floodwall

• Complete

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South T Wall ConstructionSouth T Wall Construction

• Located at the South End of the Floodwall

• Complete

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Bayou Bienvenue GateBayou Bienvenue Gate

• Installed Sill

• Installing Walls

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Barge GateBarge GateComplete

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Sector GateSector Gate

Cofferdam under way

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Tripping Dauphins Tripping Dauphins

3500’ 5500’

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QuestionsQuestions