william “bill” keck sewerage & water board of new … concrete never looked so good!...
TRANSCRIPT
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PRECAST CONCRETENever Looked So Good!
Construction of the East Bank Wastewater Treatment Plant Berm
William “Bill” KeckSewerage & Water Board of New Orleans
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Planning began and in 1896 the New Orleans Drainage
Commission was formed to carry out a Master
Drainage Plan
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Sewerage & Water Board of New Orleans
SELA History
November 7, 1989 12” in 6 hours
SELA is conceived to address interior drainage
Certified by Corps HQ in 1993
Cost sharing agreement signed in 1994
May 8, 1995 20+” in 6 hours
– Damages exceed $1 billion
SELA funded November 1995
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http://swbnola.org
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http://swbnola.org
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Green InfrastructureGoals and Objectives
Identifying and selecting projects that embody the principles of living with water– Social: community assets,
– Economic: cost effective
– Environmental: mitigate repetitive urban flooding
Implementing projects that comply with GI design criteria
Types of Projects– Demonstration
– Educational curriculum for students
– Educational curriculum for adults19
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Sewerage & Water Board of New Orleans
Other Notable Improvements
Wetlands Assimilation Project
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Bayou Bienvenue - Background
Mississippi River Gulf Outlet (MRGO)
Early 1960’s, channel dredged to create artificial connection to Breton Sound
1952 197621
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Bayou Bienvenue - Background
Impact: Reversal of tidal circulation
– Dramatic increase in salinity
– Destruction of wetlands
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Wetlands Assimilation
CPRA & SWBNO IGA effective May 1, 2011 ($2,750,000)– A-1 consist of the construction of two cells, 24 acres
total, both cells receiving ferrate disinfected effluent.
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Wetlands Assimilation Demo Central Wetlands Unit – A-1
Current Status– Completion of pipeline installation
– Veolia to place biosolids and ash
– Pumping ferrate treated effluent into two cells
– Reduced salinity levels will allow for planting of baldcypress and tupelo
– One year monitoring and analysis
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Wetlands Assimilation DemoCentral Wetlands Unit – A-2
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Wetlands Assimilation DemoCentral Wetlands Unit – A-2
Planting Floating Islands
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Wetlands Assimilation DemoCentral Wetlands Unit – A-2
Planting baldcypress, tupelo and bulrush
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Wetlands Expansion Project
17 acre cell
Cypress Planting
Floating Islands
Ferrate Treated Effluent
Ash Placement
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Future
Reuse a resource (effluent) to convert brackish water to freshwater
Restore cypress and tupelo forests
Provide for hurricane and surge protection
Restore wetlands
ecosystem
Build community
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Sewerage & Water Board of New Orleans
Sewerage & Water Boardof New Orleans
Re-Building the City’s Water Systems for the 21st Century
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EXISTING
S. Claiborne to Constance
NEW
28’ w by 10’ h
& 24’ w by 10’ h
& 18’ w by 10’ h
& 14’ w by 8’ h
20’ w by 12’ h
&16’ w by 8’ h
& 10’ w by 7’ h
NAPOLEON AVE. CANAL
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Sewerage & Water Board of New Orleans
S. Claiborne Avenue Canal – Monticello to Lowerline
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EXISTING
Lowerline to Monticello
NEW
18’ w by 9’ h
& 20’ w by 10’ h
17.5’ w by 9’ h
S. CLAIBORNE AVE. CANAL
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Sewerage & Water Board of New Orleans
Jefferson Avenue Canal – S. Claiborne to Constance
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S. Claiborne to Constance
NEW
14’ w by 10’ h
& 14’ w by 8’ h
JEFFERSON AVE. CANAL
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Sewerage & Water Board of New Orleans
Louisiana Avenue Canal - S. Claiborne to Constance
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S. Claiborne to Constance
12’ w by 10’ h
& 10’ w by 8’ h
& 8’ w by 6’ h
NEW
LOUISIANA AVE. CANAL
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Sewerage & Water Board of New Orleans
Water Hammer
$50 million to construct two water towers inside the plant
and booster pumps in the distribution
system
Construction to begin once SELA work in front of plant is
complete by early 2016
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Sewerage & Water Board of New Orleans
Water Hammer Hazard Mitigation Project
FEMA Proposed Project Funded at $48 M
– Designed to help reduce future leaks and losses
of water pressure in the water distribution
system.
– Lessen the impact of the loss of power that
causes major water hammer events in
pipelines.
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Construction of Two Off-site Water Tanks
– 2000 gallon pressurized tanks
– Tanks are housed in a building
– Building footprint 24 ft. by 20 ft. by 15 ft.
Locations
– On Chef Menteur Highway at the site of the existing water storage tank.
– On Stroelitz Street.
Sewerage & Water Board of New Orleans
Small Water Tanks
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Elevated Storage Tanks
Construction of Two Water Tanks
– 2 Million Gallons Each
– No more than 200 feet high
– Base is approximately 40 feet in diameter
Sewerage & Water Board of New Orleans
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Elevated Storage Tanks
Upgrades will allow the SWBNO to continuously provide water to the City
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Where Will the Tanks Be?
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