Greater New Orleans Hurricane and Storm Damage Risk Reduction System

Transcription

1 Greater New Orleans Hurricane and Storm Damage Risk Reduction System Mike Park Chief Task Force Hope Mississippi Valley Division U.S. Army Corps of Engineers March 15, 2011 US Army Corps of Engineers BUILDING STRONG

2 New Orleans Area Hurricane and Storm Damage Risk Reduction System 5 Parishes 350 Miles of Levee/Floodwall 78 Pumping Stations (Fed & Non-Fed) 4 Gated Outlets Legend Federal Federal Non-COE Non-Federal BUILDING STRONG

3 BUILDING STRONG

4 City of New Orleans Ground Elevations A LAKE PONCHARTRAIN B NEW ORLEANS A From Canal St. at Mississippi River to the Lakefront at U.N.O PROJECT DESIGN FLOWLINE (18 FEET) LONDON AVENUE CANAL FLOODWALL HURRICANE LEVEE / FLOODWALL (14.0 FEET) BUILDING STRONG CANAL ST AT RIVER ST LOUIS CATHEDRAL ESPLANADE AT ST. CLAUDE DERBIGNY AT I GENTILLY BLVD AT ALLEN DILLARD UNIV CAMPUS ST ANTHONY AT FILMORE AVE WAINRIGHT DR AT L. C. SIMON UNO SIDE OF WAINWRIGHT DR ELEVATIONS IN FEET NGVD New Orleans Topography FLOODWALL ALONG MISSISSIPPI RIVER 23 FT B -20

5 Hurricane Katrina Aug 29, 2005 Hurricane Rita Sep 24, 2005 One of America s largest natural disasters Cat 5 less than 12 hrs before landfall 127 MPH wind at Louisiana landfall Maximum surge of 28 to 30 feet along Mississippi coast 80 percent of the city of New Orleans flooded Cat 4 less than 12 hrs before landfall 175 MPH max sustained winds in Gulf of Mexico 120 MPH max sustained winds at landfall Cat 3 strength at landfall 5 BUILDING STRONG

6 New Orleans Maximum Flooding Depth 10 to 13 feet 8 to 15 feet 12 to 15 feet High: 15 Ft. Low: 0 Ft. 9 to 11 feet Design Failure Breach Locations

7 HSDRRS: Our Mission and Commitment Repair the damages, making what was there before whole again. By 1 June 2011, strengthen and improve the system and provide 100-year level of risk reduction capable of withstanding the effects of a storm having a 1% chance of occurring each year. Current funding level $14.4 B (fully funded). Study and recommend solutions to provide higher levels of protection; restore and protect coastal wetlands (LACPR). 7 BUILDING STRONG

8 HSDRRS Construction Status Total expected construction contracts: ~390 Overall Program Estimate: ~$14.6B Total Obligations to date: ~$9.5B Total Obligations to Small Businesses: ~$2.5B Awarded: 313 construction contracts worth $7.5B 100-yr Contracts: 103 of 109 construction contracts awarded Ongoing: 116 construction contracts worth $5.8B Complete: 197 construction contracts worth $1.6B Remaining: 74 construction contracts worth $2.3B 2011 Plan to award 36 contracts at a value of $1.1B Outfall Canal Closures and Pumps Levees and Floodwalls Pump Station Storm Proofing SELA interior drainage 8 BUILDING STRONG

9 Deliver the Greater New Orleans HSDRRS Mission Challenges Mandate to deliver $14.6B construction program on schedule Intense scrutiny New governances Form design criteria, program cost estimate, acquire funding NEPA compliance Deliver a comprehensive system Enablers Administration / Congressional commitment Fully funded program National/Regional Corps capabilities Local partners and stakeholders capabilities NEPA Alternate Arrangements Full host of acquisition strategies Favorable bidding climate 9

10 Integrated Systems Approach Navigation Flood Damage Risk Reduction Ecosystem Restoration 10

11 The Big Picture New Orleans IHNC MRGO Closure 11

12 Acquisition Strategy Best Practices: System Program Management Design Build / Cost Plus Contracts Best Value Source Selection Early Contractor Involvement (ECI) Program Management Support Contract Construction Materials Government Furnished Borrow Supply Contracts for Sheet Piles and Borrow Improved Techniques Value Engineering systems study complete Pile Load Tests in advance of contract award Press Pile, Spiral welded piles Deep soil mixing, sand blanket and wick drains Earned Value Management System (EVMS) Leverage National & Regional Resources 12

13 HSDRRS Funding Breakdown TOTAL APPROPRIATED FUNDS: $14.48 B Other COMPONENT $ (M) SELA (Interior Drainage) $1,253 WBV 100-year Level of Protection $1,605 Floodwalls SELA LPV 100-year Level of Protection $1,997 Repair Existing System $1,491 Armoring Non-fed WBV 100-yr Restore to Design Height $1,116 Complete Authorized System $1,619 Permanent Pump Stations $804 IHNC LPV 100-yr IHNC $1,743 Selective Armoring $89 PCCP Complete Restore Repair 13 Storm-proof Existing Pump Stations Incorporate non-fed Levees in Plaquemines Parish $340 $671 Reinforce or Replace Floodwalls $1,626 Other $130

14 Contractual Obligations Total HSDRRS Obligations = $9.5B $978,725,304 $2,471,098,711 E&D, S&A, Real Estate, Work by Other Corps, etc Total Large Business Contracts Total Small Business Contracts $5,862,333,984 30% of all contractual dollars have been awarded to small businesses 14 BUILDING STRONG

15 Industry Interaction Industry Days and Small Business Days: Upcoming projects, concepts and innovations Innovative Workshops: Forums to discuss and gather information from industry to determine the best engineering solution 15 BUILDING STRONG

16 1 June 2011 Status: A perimeter system capable of defending against a 100-year storm surge where: 97% of the system perimeter will be constructed to 100-year design criteria 2 % of the system will have Engineered Interim Structures in place 1% of the system will have Engineered Construction Closures on site to close gaps should a hurricane threaten the area 16 BUILDING STRONG

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18 Lake Borgne Surge Barrier 18

19 Lake Borgne Surge Barrier Gates GIWW Barge Gate GIWW Sector Gate 19

20 Lake Borgne Surge Barrier 20

21 Lake Borgne Surge Barrier 21

22 Lake Borgne Surge Barrier Sector Gate Fabrication 22

23 Lake Borgne Surge Barrier Sector Gate Fabrication IHNC Lake Borgne Sector Gate 23

24 Lake Borgne Surge Barrier Barge Gate 24

25 Bayou Bienvenue Gate Fabrication 25

26 St. Bernard Floodwall 26

27 St. Bernard Floodwall Construction 27 Southern Reach