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1 17 12 Work Session Materials_Council Bluffs 2011 Flood Fighting ActivitiesMasterpiece on the Mississippi TO: The Honorable Mayor and City Council Members FROM: Michael C. Van Milligen, City Manager SUBJECT: Work Session - January 17, 2012 City of Council Bluffs 2011 Flood Fight DATE: January 9, 2012 Dubuque knerd All-America City hill! 2007 Public Works Director Don Vogt is transmitting the information for the work session to be held January 17, 2012, regarding the City of Council Bluffs Flood Fight. Michael C. Van Milligen MCVM:sv Attachment cc: Barry Lindahl, City Attorney Cindy Steinhauser, Assistant City Manager Don Vogt, Public Works Director THE CITY OF Dui Masterpiece on the Mississippi TO Michael C Van Milligen, City Manager FROM Don Vogt, Public Works Director DATE January 6, 2012 SUBJECT City of Council Bluffs 2011 Flood Fight Dubuque AU- America City 11 1111 2007 DISCUSSION Attached is the Public Works Department's proposed presentation for the January 17, 2012 City Council work session regarding the City of Council Bluffs 2011 Flood Fight Street/Sewer Maintenance SupervisorJohn Klostermann will provide the overview of his visit to Council Bluffs and its flood control efforts and lessons learned Council Bluffs Flood Fight 2011 John Klostermann Street /Sewer Maintenance Supervisor Public Works Department Council Bluffs Flood Control Visit June 3o -July 1 2011 City of Iowa City Rick Fosse - Public Works Director Ron Knoche - City Engineer City of Council Bluffs Greg Reeder - Director of Public Works Pat Miller - Operations Director Jeff Christ - Civil Engineer Council Bluffs Flood Control Visit Incident Command Center Levee System Pumping Stations Seepage Blanket Installations Flood Issues • River Stage over the 34 foot river level threshold Flood Stage 29 ft Levee Top 41 ft July 2 -Crest 36.17 • Passing the 150,000 cubic feet per second release of water at the Gavin's Point Dam June 26 - 16o,000 - projected through July 31 • The above normal precipitation forecast for the watershed area above Council Bluffs • The duration of seepage and high ground water levels inside the levee which can cause additional risk System Comparisons Council Bluffs Levee - 24.9 miles Missouri River, Indian Creek and Mosquito Creek 184 Relief Wells 15 Pumping stations Dubuque Levee /Floodwall - 6.2 miles 2 Relief Wells w /toe drains 4 Retention basins 5 Pumping stations (w /4th Street) Partners City of Council Bluffs HDR - National Levee Experts HGM Associates - Local Engineering Firm State of Iowa Iowa National Guard Army Corps of Engineers Federal Assistance Disaster June 27th FEMA Pre -Flood Activities May 13, 2011 Created Inundation Maps Evacuation Plan Created Levee Zones Set up Survey Markers Along The Levee System Created an Incident Tracking System Flag System Red = Requires Action Orange = Continue to Monitor Blue = No Problem or Incident Resolved White = Engineering, Duplicate, etc... Flag System Sandbagging - Pre-Flood Activities H ESCO H ESCO Sandbagging Operation City /Volunteers Sandbagging Operation Mid America Center � a vru Sandbagging Operation — July 14, 2011 Sandbag Inventory For City Use Only — 141,525 filled bags on 3,145 pallets Incident Command Center - May 3o,zo11 4909 `rte. ;• Incident Command Center 24/7 Incident Command Center 12/6 Incident Command 7:30 a.m. - Daily Update Briefing at the Library Missouri River Event Daily Update Situation Update from All Agencies Public /Private (utility providers) Current Issues /Projects: Volunteer Sandbagging Opportunities: Update on volunteers /filled sandbags Media Daily Media Update Local TV /Radio Council Bluffs Web Site: www. coup ci Ibluffsi owa. corn Facebook: http: / /www.facebook.com /pages /City -of- Council- Bluffs /uo9712979873o6 ?sk =wall Youtube: http ://www.youtube.com/watch ?v=CL8XdzToiR8 Alert Levels Level is An unusual or slowly developing event that may impact a levee system or a flood protection system. Level 2: A flood control protection system component or levee is failing or failure may rapidly occur. Level 3: Imminent failure of a flood protection system or levee or a failure is in progress. Level 1 - June za - September 2 Evacuation Plan Level is the levee is impacted by flooding, residents in the flooded area should develop a plan, should they need to evacuate. At this point no one needs to evacuate. Level a: the levee is or is going to fail. At this time they recommend people evacuate, but no one is required. Level 3: the levee is failing or failure of the flood protection system is in progress. At this point evacuation required. Sirens Will Sound At Level 3 - Only In The Area That Is Affected By The Evacuation. Levee Inspection Team Levee Inspections Iowa National Guard Inspection - once every 6 hrs -day light hours Report to Incident Command Center Assessment Team Council Bluffs Engineering Staff / Consulting Engineering Firms 2- 8 hour shifts Repair Team Council Bluffs Public Works Department 3- 8 hour shifts s 111.1W; Levee Issues —High Water Table Levee Issues —High Water Table Levee Issues — Interior Drainage Issues Levee Issues — Interior Drainage Issues Levee Issues —Sand Boils Levee Issues —sand Bolis Levee Issues —sand Boils Interior Drainage Issue- Pumping Stations Interior Drainage Issue- Pumping Stations Interior Drainage Issue- Pumping Stations Interior Drainage Issue- Pumping Stations Supplemental Pumping July 14, 2011 31 Diesel Pumps to supplement regular storm sewer pumping stations Rental Pumps Other Iowa Cities Pumps Run 24/7 Pumps Serviced 200 hrs. Contracted Maintenance $1,26o day Interior Drainage Issue- Seepage Blankets Seepage blankets are designed to provide additional support for the levee. !Avail, Filter Blanket Installation Map 1424110 Filv 4r 8, ImIlen10 Me/quit° Cteek REI 1427110 Rive/ LB IntILIn [leek R0 n.01.1....ms • M.107.4.1 rronon, 1. ■ftemmo.m uormeel 4 nage nf 4 . , 4.. •`... • Ill LA, A:14%•.:71: • "ra Interior Drainage Issue- Seepage Blankets Interior Drainage Issue- Seepage Blankets Interior Drainage Issue- Seepage Blankets Interior Drainage Issue- Seepage Blankets Interior Drainage Issue- Seepage Blankets Other Flood Related Issues Problems Due to High Water Table - As of July 14, 2011 8 - Sanitary Sewer Collapses 17- Homes with power shutoff due to groundwater in basements Apartment Complex - io8 units lost sanitary sewer when private sewer collapsed. Residents relocated not expected to return until flood is over High ground water and seepage will be an ongoing problem with infrastructure and homes Unprotected Areas Unprotected Areas Unprotected Areas Damage Estimates Costs: Flood Fighting $ii million Public Infrastructure Damage $23 million (FEMA) Levee damage 25 million ( USACE Repair PL84-99 program) Lessons Learned Communications: Good Supply of Boo mhz radios and batteries Lessons Learned Unified Command Inter - department /agency coordination Lessons Learned Informing the Public Emergency Notice • Moment's Notice Code Red - call out system for emergency notification • Warning Sirens Area notifications Daily Notices • Requires Full Time Staffing • Direct door to door notifications • Twitter - immediate feedback / positive response • Daily Update on City web page • Daily news conference for local TV and Radio also played on CBTV • Youtube Lessons Learned Pumping Plan Be prepared to back up pumping stations Rental equipment Emergency Management IMAC's Agreement Pumps and generators Reimbursement agreement for long lasting events Lessons Learned Federal Disaster - FEMA Hire a consultant with experience and expertise with FEMA as early as possible in the event FEMA procedures and documenting are not always the first priorities during the event Corps of Engineers Request a dedicated liaison who will greatly streamline the communication process with USACE Lessons Learned Employees - Long Duration Events Prepare and inform staff in advance Allows them to prepare and plan for their families Take precautions to avoid employee burnout Recognize staff efforts as much as possible Give staff time off Supplement staff with temporary help Congratulations and Thank You City of Council Bluffs Citizens, Staff and Consultants Successful Flood Fight Thank You! Director of Public Works - Greg Reeder Operations Director - Pat Miller Civil Engineer - Jeff Christ For their time and insight into this historic event