Coastal Protection and Restoration Authority. 2013 Hurricane P reparedness. CPRA Board Meeting, Baton Rouge, LA May 15, 2013. Coastal Protection and Restoration Authority. Currently MRT system under high water watch Extreme rain events in Illinois and Ohio valley.
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CPRA Board Meeting, Baton Rouge, LA
May 15, 2013
Currently MRT system under high water watch
Extreme rain events in Illinois and Ohio valley.
Phase I flood fight is in effect, Levee Districts are performing high river inspections, no major issues at this time, monitoring historic sand boils.
Water flowing thru 174 needles at Bonnet Carre enough to fill the stilling basin.
Six bays are opened on the overbank structure at Old River (670 cfs)
Predicted stage at Carrollton gage will be 14.3 on 5/19 although river can continue to rise with additional rainfall. Stage at Carrollton on 5/19/2011 was 17.0.
HSDRRS SYSTEM HIGHLIGHTS
All gates are operable an there will be no need to perform interim gap closures.
Levees meet the 1% elevation for this year’s hurricane season. Some levees that have settled will be rehabilitated.
Fronting protection at pump stations will complete this fall.
Trolley Gate at LA-46
Lakefront Levees, Hayne Blvd.
HSDRRS SYSTEM HIGHLIGHTS
IHNC corridor can be operated although work is still ongoing at the 150’ concrete barge gate.
WCC is operable with minor modifications ongoing at the pump station.
System will be in utilization period this hurricane season, with “joint” operations by Corps and NFS.
Western Closure Complex
Hurricane Protection Efforts in SW LA
South West Coastal Integrated Feasibility study (State and USACE effort)
South Central Project (state only effort)
Flood Control Closure Structures (State surplus and CDBG)
Efforts are ongoing between the USACE, DOTD and CPRA investigate a ring levee around I-10 near Laplace.
I-10 Laplace Ring Levee Concept
Levee alignment efforts are ongoing between the USACE and the State
West Shore Lake Pontchartrain
New Orleans to Venice (future projects)
FeaturesHurricane protection in Plaquemines Parish South of Oakville consists of both federal and non-federal levees. CPRA is providing engineering and construction inspection assistance.
• Enlargement Mississippi River levees from City Price to Venice• Enlargement of back levees from St. Jude to City Price• Enlargement of back levees from City Price to Tropical Bend and two 54-inch flap-gated culverts• Enlargement of back levees from Tropical Bend to Fort Jackson and a new floodgate at Empire • Enlargement of back levees from Fort Jackson to Venice
• Enlargement of back levees from Phoenix to Bohemia and flap-gated culverts
Lafourche and Terrebonne
Reviewing USAE plans for Larose floodwall improvements phase 2.
Continues to improve and raise levees with in-house forces.
North LafourcheProviding technical assistance for levee repairs from Valentine to Larose.
Terrebonne Levee and Conservation
Houma Navigational Canal and Bayou Grand Caillou are operational.
Award CDBG project for a one mile levee repair, Pointe-Aux- Chene connector Project (East side of J-2 levee alignment)
Received 404 permit last week for Little Caillou & Grand Caillou.
I Levee Effort
Monitor movements and seepage of levees and T-walls
CPRA will reach to all coastal levee authorities and flood protection entities by June 1st.
CPRA has backup Emergency Operations Center backup with the Port of Baton Rouge.
Have updated our Emergency Contract.
Have received emergency operation Manual from Levee Districts.
Are working on public access for Levee Information Management System (LIMS) that depicts which gates are open or closed.
Will work with the Corps and local levee districts to jointly operate major flood control features this hurricane season, including Seabrook, IHNC, Caernarvon Sector gate, Western Closure Complex, Bayou Segnette, Eastern Tie In and Western Tie In.