BONNET CARRE ’ SPILLWAY OPERATIONS STAKEHOLDER … · 2020-04-02 · BUILDING STRONG ® and...
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BUILDING STRONG ® and Taking Care of People! BONNET CARRE’ SPILLWAY OPERATIONS STAKEHOLDER MEETING New Orleans District 2 April 2020
Transcript of BONNET CARRE ’ SPILLWAY OPERATIONS STAKEHOLDER … · 2020-04-02 · BUILDING STRONG ® and...
BUILDING STRONG®and Taking Care of People!
BONNET CARRE’ SPILLWAY OPERATIONS STAKEHOLDER MEETING
New Orleans District2 April 2020
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BONNET CARRE STAKEHOLDER MEETINGMeeting Agenda
1. Welcome and 2020 Flood Fight Overview COL Stephen Murphy, New Orleans District Commander
2. Weather Forecast and River ConditionsDavid Ramirez, Chief of New Orleans District Water Management
3. Bonnet Carre Spillway Operation Monitoring ProgramMichael Brown, Environmental Manager for Coastal Environmental Compliance
4. Acknowledgement of Comments Received
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MISSISSIPPI RIVER FLOOD RISK MANAGEMENT2020 High River: 87 days with 51 days in phase II
Carrollton Gage1 Apr 2020
Levee slide in Atchafalaya Basin
Sand boil along the Miss. River
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Successful only when operated as designedMISSISSIPPI RIVER FLOOD RISK MANAGEMENT
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2. WEATHER FORECAST AND RIVER CONDITIONS
DAVID RAMIREZ, CHIEF OF NEW ORLEANS DISTRICT WATER MANAGEMENT
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61
564
179, 10%
01 April 2020 Flow SummaryDischarge in 1,000 cfs
249, 14%
72,
4%214
122
256, 15%
28, 2%
1.660 million-cfs
1.338 million-cfs
505
16%
571, 33%
13, 1%
34, 2%
100%
53, 3%
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UNCLASSIFIED// FOR OFFICIAL USE ONLY
UNCLASSIFIED// FOR OFFICIAL USE ONLY
New Orleans16-day
Vicksburg16-day
Red River Landing16-day
Cairo16-day
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3. Bonnet Carre Spillway Operation Monitoring Program
MICHAEL BROWN, ENVIRONMENTAL MANAGER FOR COASTAL ENVIRONMENTAL COMPLIANCE
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COORDINATION
• Corps coordinates annually with our state (LA and MS) agencies, Federal agencies, tribes, and non-governmental organizations
• Corps coordinates prior to every Bonnet Carre’ Opening
• Updates sent during operation on the number of bays opened/closed•• After closing we finalize Endangered Species coordination.
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Field Measurements • Water temperature • Specific conductance • Salinity • Dissolved oxygen• pH (Readings 0.5 meters above bottom, mid-depth, and 0.5 meters below water surface) collected before, bi-weekly during, monthly after closing
Water-Quality Constituents Analyzed at USGS Lab• Nutrients, including total & diss. Nitrogen & Phosphorous species
• Major ions, including calcium, chloride, fluoride, iron, magnesium, manganese, potassium, silica, sodium, sulfate, and bicarbonate.
• Triazine herbicides
• Total organic carbon
• Total suspended solids (TSS)
• Oxygen isotope analysis
• Chlorophyll a
WATER QUALITY MONITORING BY US GEOLOGICAL SURVEY (16 SITES)
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LA AND MS WATER SAMPLING LOCATIONS
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ENDANGERED SPECIES ACT SECTION 7
• Coordination Letters sent to USFWS & NMFS on April 1, 2020
• Pallid Sturgeon (E) and Atlantic Sturgeon (T) are entrained.
• Once closed Engineering Research and Development Center, Corps, USFWS, and and LDWF catch entrained sturgeon tag and release back into the River or Lake
• Corps prepares Biological Assessment sends to USFWS
• USFWS prepares a Biological Opinion
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ADDITIONAL MONITORING• LDWF on-going fisheries (trawl, seine, gillnet, and oyster dredge) sampling in Lake
Pontchartrain, Lake Borgne, and Mississippi Sound.
• Mississippi Dept. Marine Resources on-going fisheries sampling.
• LDEQ Causeway water quality samples crossovers 2, 4, and 6.
• Mississippi Dept. of Environmental Quality water quality sampling.
• Lake Pontchartrain Basin Foundation 10 sites: fecal coliform, water temp, water visibility, salinity, and dissolved oxygen.
• ERDC (post operation) water quality, fish species abundance sampling, Asian carp tagging
• NMFS Collects Standing Reports Marine Mammals and Sea Turtles
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KEEP IN TOUCH WITH THE NEW ORLEANS DISTRICT
Like us on Facebook@usacenola@westshorelakepontchartrain@comiteriverdiversion
Follow us on Twitter @TeamNewOrleans
Find us on Instagram @corps_of_engineers_nola
Visit us at our website www.mvn.usace.army.mil
