HSDRRS Hurricane Storm Damage Risk Reduction System
Times-Picayune / NOLA.com Times-Picayune / NOLA.com Industrial Canal
Orleans Intracoastal Avenue London Canal Avenue Canal 17th Street Canal Industrial Canal
Orleans Intracoastal Avenue London Canal Avenue Canal 17th Street Canal BAYOU ST. JOHN
Industrial Canal
Orleans Intracoastal Avenue London Canal Avenue Canal 17th Street Canal BAYOU ST. JOHN
Industrial Canal
Orleans Intracoastal Avenue London Canal Avenue Canal 17th Street Canal 10+ feet 8-10 feet 6-8 feet 4-6 feet Times-Picayune 2-4 feet NOLA.com 0-2 feet Graphic New Orleans Topography LAKE PONCHARTRAIN B City of New Orleans From Canal St. at Ground Elevations Mississippi River A to the FLOODWALL ALONG NEW MISSISSIPPI RIVER ORLEANS Lakefront at U.N.O. A 30 30 23 FT B 20 MR&T 20 PROJECT DESIGN LONDON AVENUE CANAL FLOODWALL FLOWLINE (18 FEET) HURRICANE LEVEE / FLOODWALL (14.0 FEET) 10 10
0 0
ELEVATIONS IN FEET NGVD -10 -10 10 -
-20 -20 CANAL ST CANAL AT RIVER GENTILLY BLVD GENTILLY AT ALLEN ESPLANADE AT ESPLANADE ST. CLAUDE DERBIGNY AT I ST AT ANTHONY FILMORE AVE ST LOUIS ST CATHEDRAL WAINRIGHT DR L.AT C. SIMON DILLARD UNIV CAMPUS UNO SIDE OF WAINWRIGHT DR BAYOU ST. JOHN
Industrial Canal
Orleans Intracoastal Avenue London Canal Avenue Canal 17th Street Canal BAYOU ST. JOHN
Industrial Canal
Orleans Intracoastal Avenue London Canal Avenue Canal 17th Street Canal Times-Picayune NOLA.com Graphic
10+ feet 8-10 feet 6-8 feet 4-6 feet 2-4 feet Lesson Learned: 0-2 feet PROTECT THE PERIMETER Times-PicayuneNOLA.com 17th Street Canal
LONDON
ORLEANS BAYOU ST. JOHN 17th 17th Street Canal
INTERIM PUMPS: 9,200 cfs PERMANENT PUMPS: 12,600 cfs 37% Orleans Avenue Canal
LONDON
ORLEANS BAYOU ST. JOHN 17th
INTERIM PUMPS: 2,200 cfs PERMANENT PUMPS: 2,700 cfs 23% London Avenue Canal
LONDON
ORLEANS BAYOU ST. JOHN 17th
INTERIM PUMPS: 5,200 cfs PERMANENT PUMPS: 9,000 cfs 73% SEABROOK
LONDON
ORLEANS BAYOU ST. JOHN 17th
Navigable Width: 95’ Height: 16’ above sea level 2 Lift Gates: 50’ wide each Sill Depth: 18’ below sea level 24,300 cfs
16,000 cfs LONDON ORLEANS BAYOU ST. JOHN 17th I- Wall
Canal (normal water level) Levee
Steel Sheet Pile
26 miles L P V LAKE PONTCHARTRAIN AND VICINITY Includes 77 risk reduction features in St. Charles, Jefferson, Orleans, and St. Bernard parishes. L P V LAKE PONTCHARTRAIN AND VICINITY Includes 77 risk reduction features in St. Charles, Jefferson, Orleans, and St. Bernard parishes.
W B V WESTBANK AND VICINITY Includes 98 risk reduction features in St. Charles, Jefferson, Orleans, and Plaquemines parishes. PERIMETER: 133 Miles
TOTAL: 350 miles with interior levees/floodwalls
75 Pump Stations Total Pumping Capacity: 8 Million cfs TOTAL COST: $14+ Billion
IHNC SURGE BARRIER
WEST CLOSURE COMPLEX
SECTOR GATE BARGE GATE Each 150’ wide
LIFT GATE 56’ wide
COST: ~$1.1 Billion Largest continuous surge barrier in the world: 1.8 miles 26’ ABOVE Sea Level 26’ ABOVE Sea Level
Sea Level
647 Steel Batter Piles 3’ diameter
129’ below waterline 190’ below waterline VIDEO OF SURGE BARRIER
https://www.floodauthority.org/videos/ WBV WBV
6 PUMPS 15,623 cfs 3 PUMPS 8,991 cfs Removed more than 25 miles of levees and floodwalls from direct surge impact
WCC COST: ~ $1 Billion Largest Pump Station in the World
19,426 cfS 1,165,560 cf /minute 356 Projects NOV Armoring PCCP 32 20 OFC 3 7 Mitigation 21 IHNC 12 Stormproofing 31
SELA 46
LPV 77
WBV 98