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U.S. ARMY CORPS OF ENGINEERS New Orleans District

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21 diapositives · 1.1K Views · Sep 15, 2011

U.S. ARMY CORPS OF ENGINEERS New Orleans District. GULF INTRACOASTAL WATERWAY (GIWW). Gulf Intracoastal Canal Association (GICA) 102 nd Annual Convention 24 August 2007 Edward R. Watford, Deputy District Engineer for Project Management. Baton Rouge. Lake Charles. Lake Pontchartrain.

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  1. U.S. ARMY CORPS OF ENGINEERSNew Orleans District GULF INTRACOASTAL WATERWAY (GIWW) Gulf Intracoastal Canal Association (GICA) 102nd Annual Convention 24 August 2007 Edward R. Watford, Deputy District Engineer for Project Management

  2. Baton Rouge Lake Charles Lake Pontchartrain Intracoastal City New Orleans Morgan City Gulf Intracoastal Waterway Thru New Orleans District Mainstem Alternate Route

  3. GULF INTRACOASTAL WATERWAY (GIWW) • Total of 375 miles (12’x125’ WHL/12’x150’ EHL) • 301 miles main stem • 66 miles Morgan City to Port Allen Alternate Route • 8 miles Algiers Canal Alternate Route • Eight Navigation Locks • Calcasieu Lock • Leland Bowman Lock • Port Allen Lock • Bayou Sorrel Lock • Bayou Boeuf Lock • IHNC Lock • Harvey Lock • Algiers Lock Gulf of Mexico

  4. ALGIERS LOCK • 75’ x 797’ • Completed 1954 • Currently replacing the operator control systems. • No major concerns or issues.

  5. BAYOU BOEUF LOCK • 75’ x 1156’ • Completed 1954 • Damaged sector gate is currently being repaired on site. • The lock is operating at open pass, with current low water.

  6. BAYOU SORREL LOCK • 56’ x 797’, one of the smallest locks on the GIWW west of the Mississippi River. • Completed 1952, scheduled for replacement with construction starting in 2009. • Design Documentation Report completed last month. • Regional design team is currently producing plans and specifications. • The current lock elevation is 5’ below the project flood with the higher flowline. • Replacement lock will be a 75’ x 1200’ concrete chamber.

  7. ERDC Channel Sediment Study

  8. CALCASIEU LOCK • 75’ x 1205’ • Completed 1950 • Remove and replace the damaged lock dolphin in June 2008. Minimal closures are anticipated for this work.

  9. HARVEY LOCK • 75’ x 425’ • Completed 1934 • No major concerns or issues.

  10. IHNC LOCK • 75’ x 640’ • Completed 1923 • Dewatering is scheduled for August 2008 (45-60 closure), funding permitted. • The lock has a 99.2% operational rating, with the two bridge curfews that impede traffic. • Additional funding is required for the necessary enhancements to ensure reliability. Though not included in the FY08 budget, an amount of $25-$30 million is required.

  11. RECENTLY COMPLETED WORK AT IHNC IHNC Lock: Replaced river end, east side guidewall with Floating Guidewall Concrete Pontoon with Fiberglass Plastic Composite Wale System Constructed off-site Installed Oct 2005 with only 1 day lock closure Similar guidewall is needed on the west side which takes abuse Completed electrical rewiring of lock July 2007

  12. IHNC - CONCEPTUAL VIEW OF PROPOSED PROJECT Recommended Plan: 110’ x 1200’ Cost - $804 million River and Harbor Act Of 1956 authorized the construction of the new lock.

  13. LELAND BOWMAN LOCK • 110’ x 1200’ • Completed 1985 • No major concerns or issues, this is the newest GIWW lock in the New Orleans District. • New mooring buoys are scheduled to be installed later this year.

  14. PORT ALLEN LOCK • 84’ x 1198’ • Completed 1961 • A major dewatering is scheduled for September – October 2008 (45-60 day closure). • The Mississippi River end miter gates will be replaced during the dewatering. • The lock forebay was dredged in July 2007.

  15. UPCOMING WORK SUMMARY • Port Allen Lock: • Dewatering to replace river end gates • Sep-Oct 2008 (45-60 day closure) • Dredge the lock forebay at the Mississippi River, summer 2008. • Calcasieu Lock: • Remove & replace damaged lock dolphin • Jun – Aug 2008 (minimal closures) • IHNC Lock: Dewatering, funding permitted Aug 2008 (45-60 day closure) • Dredge GIWW Port Allen to Morgan City Alternate Route: • Dredge below Bayou Sorrel Lock & Miles 19 to 27 (non-continuous) • May – Sep 2008 • Dredge Berwick Bay Harbor & Wax Lake Crossing: • Jul - Aug 2008

  16. IHNC Lock ($ Millions)

  17. GIWW ($ Millions)

  18. HURRICANE PREPAREDNESS Hurricane Response Joint Team Meetings: Coast Guard / Corps of Engineers / Barge Industry Main Objectives: Pre-storm Plans – Channel / Structure Closings Communications - Before, During & After the storm Post-storm Plans- Channel / Structure Assessment & Restoration Stay clear in 2007!