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Dubuque Levee and Floodwall Certification_PAL Progress Report #4Masterpiece on the Mississippi Dubuque All- AmeticaCity 1 2007 TO: The Honorable Mayor and City Council Members FROM: Michael C. Van Milligen, City Manager SUBJECT: Dubuque Levee and Floodwall Certification - PAL Progress Report #4 DATE: November 9, 2010 Planning Services Manager Laura Carstens recommends the City Council officially adopt the revised sections of the Operation and Maintenance Manual and the revised Emergency Flood Control Plan, both dated October 2010, and then direct staff to transmit the City of Dubuque's Provisionally Accredited Levee (PAL) Progress Report #4 to FEMA for certification of the Dubuque levee and floodwall system along the Mississippi River. I concur with the recommendation and respectfully request Mayor and City Council approval. MCVM:jh Attachment cc: Barry Lindahl, City Attorney Cindy Steinhauser, Assistant City Manager Laura Carstens, Planning Services Manager Mich I C. Van Milligen Masterpiece on the Mississippi Dubuque kiltd AD-AmedcaCity 11111 1 2007 TO: Michael Van Milligen, City Manager FROM: Laura Carstens, Planning Services Manager' A `" SUBJECT: Dubuque Levee and Floodwall Certification — PAL Progress Report #4 DATE: November 8, 2010 INTRODUCTION This memorandum transmits the PAL Progress Report #4 to FEMA for certification of the Dubuque levee and floodwall system along the Mississippi River. This progress report is a bi- monthly update that FEMA requested as part of the City of Dubuque's Provisionally Accredited Levee (PAL) Agreement. DISCUSSION The City of Dubuque must certify the levee system complies with federal regulations concerning provision of 100 -year flood protection for the community. This certification must be submitted before May 17, 2011 and be signed by a professional engineer. We plan to have a member of the City's Engineering Department provide this certification. City staff has reviewed the June 2010 Engineering Technical Review Report prepared by the U.S. Army Corps of Engineers (USACE) on the Dubuque Levee System. Overall, our levee system appears to meet or exceed most standards according to the report. The City Council officially adopted the July 2002 Operation and Maintenance Manual for the Dubuque levee and floodwall system on May 3, 2010 for submittal to FEMA. Subsequently, the June 2010 USACE report recommended that the City update the Operation and Maintenance Manual and the Emergency Flood Control Plan to ensure that information in both plans was clear, consistent, and coordinated with respect to operation, maintenance and emergency flood control response. City staff completed a simultaneous review of both plans in October 2010. Enclosed are the revised Operation and Maintenance Manual and the revised Emergency Flood Control Plan that will be provided to FEMA as part of the bi- monthly PAL Progress Report. The remaining sections and all Appendices of the Operation and Maintenance Manual sent to FEMA in May 2010 are unchanged. The USACE report identified two main areas that require further analysis for the Dubuque levee and floodwall system. One area is for interior drainage analysis. The City retained CDM to do as it is an extension of the work the firm is doing for the FEMA flood map technical appeal. The analysis is to be completed by December 15, 2010. Dubuque Levee and Floodwall Certification — PAL Progress Report Page 2 The other area is for structural analysis of the levee and floodwall system to evaluate levee embankment stability. The City Council authorized issuance of an RFP for this work, and then selected GEI as the consultant on September 20, 2010. GEI conducted a site visit on October 20, 2010 to begin their analysis. The analysis is to be completed by December 15, 2010. REQUESTED ACTION The requested action is for the City Council to officially adopt the revised sections of the Operation and Maintenance Manual and the revised Emergency Flood Control Plan, both dated October 2010, and then to direct staff to transmit PAL Progress Report #4 and these two documents to FEMA. Enclosures cc: Don Vogt, Public Works Director Gus Psihoyos, City Engineer John Klostermann, Streets & Sewers Supervisor Bob Schiesl, Assistant City Engineer Deron Muehring, Civil Engineer Kyle Kritz, Associate Planner PAL Progress Report Nov 2010 Map Modernization Quarterly Report Provisionally Accredited Levee Progress Report 11/8/2010 FEMA I. Levee Identification PAL Scenario: B IPAL Period: Start Date: May 17, 2009 End Date: May 17, 2011 Progress Report due date 12 months after 91st day of PAL Period. Progress Report Due Date: 17 Jul - 10 FEMA Region: VII State/Territory: IA County: Dubuque County Community: City of Dubuque Levee Owner Name: City ofDubuque Contact information: Laura Carstens Project Officer (FEMA): Dawn Kinsey FEMA Received Date: Levee Owner Agency: same Phone #: 563.589.4210 Phone #: 816.283.7055 I II. Status Report: Report By Certification Requirement (44 CFR 65.10) Requirement #: 1 Description: Demonstrate that all levees provide the minimum required freeboard [44 CFR 65.10(b)(1)]. Completion Dates and Status: N/A due to USACE Certification? no 30- Jun -10 :Planned 13- Jun -10 : Actual 100% ' Estimated % Work Complete Summary: (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just state 'No Activity The June 2010 USACE engineering technical review report concluded that the Dubuque Levee system meets the minimum required freeboard. Requirement #: 2 Description: Demonstrate that all openings have been provided with appropriate closure devices that are a structural part of the system [44 CFR 65.10(b)(2)]. Completion Dates and Status: N/A due to USACE Certification? no 30- Jun -10 :Planned 13- Jun -10 : Actual 90% ' Estimated % Work Complete Summary: (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just �': state 'No Activity') The June 2010 USACE report concluded that all openings in the Dubuque Levee system have appropriate closure devices. The report recommended operation and maintenance items for the City to address. Page 1 of 25 PAL Progress Report Nov 2010 Map Modernization Quarterly Report 11/8/2010 Demonstrate through engineering analyses that no appreciable erosion of Requirement #: 3 Description: the levee embankment can be expected during the base flood [44 CFR 65.10(b)(3)]. Completion Dates and Status: N/A due to USACE Certification? no 30- Jun -10 :Planned 13- Jun -10 : Actual 100% ' Estimated % Work Complete (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just Summary: state "No Activity'.) The June 2010 USACE report concluded that there is no appreciable erosion of the levee embankment expected during the base flood. uirement Description: Evaluate through engineering analyses the levee embankment stability [44 Re #: 4 q ' CFR 65.10(b)(4)]. Completion Dates and Status: N/A due to USACE Certification? 30- Sep -10 :Planned 30- Dec -10 : Actual ' Estimated % Work 50% Complete (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just Summary: state "No Activity".) The June 2010 USACE report included a limited structural analysis of the levee embankment stability. The City issued an RFP on 08/05/10, and selected a consutlant on 09/20/10, with work to be completed by 12/15/10. Assess the potential and magnitude of future losses of freeboard as a result Requirement #: 5 Description: of levee settlement and demonstrate that freeboard will be maintained [44 CFR 65.10(b)(5)]. Completion Dates and Status: N/A due to USACE Certification? no 30 Jun - 10 :Planned 13- Jun -10 : Actual 100% ' Estimated % Work Complete (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just Summary: state °No Activity ".) The June 2010 USACE report concluded that settlement is not an issue and the freeboard will be maintained. Page 2 of 25 PAL Progress Report Nov 2010 Map Modernization Quarterly Report Page 3 of 25 11/8/2010 Analyze the interior drainage; identify the source(s) of such flooding, the Requirement #: 6 Description: extent of the flooded area, and, if the average depth is greater than one foot, the water - surface elevation(s) of the base flood [44 CFR 65.10(b)(6)). Completion Dates and Status: N/A due to USACE Certification? no 30- Sep -10 :Planned 30- Dec -10 : Actual 50% : Estimated % Work Complete Summa- (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just �': state °No Activity'.) The June 2010 USACE report recommended an interior drainage analysis. The City has retained a consultant to provide a technical analysis of interior drainage for compliance with NFIP by 12/15/10. Requirement #: 7 Description: Adopt and submit an official operation manual [44 CFR 65.10(c)]. Completion Dates and Status: 5- May -10 :Planned 5- May -10 : Actual 100% : Estimated % Work Complete Summa . (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just �'• state 'No Activity'.) The Dubuque City Council officially adopted the July 2002 Operation and Maintenance Manual for the Dubuque levee and floodwall system on 05/03/10 for submittal to FEMA. Based on the USACE report, City staff revised them nnaratinn and Maintananra Manual and them Finamanry F/nnri Cnntml Plan in nrtnhar 9Mn Requirement #: 8 Description: Adopt and submit an official maintenance plan [44 CFR 65.10(d)]. Completion Dates and Status: 5- May -10 :Planned 5- May -10 : Actual 100% : Estimated % Work Complete Summary: (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just �': state °No Activity.) The Dubuque City Council officially adopted the July 2002 Operation and Maintenance Manual for the Dubuque levee and floodwall system on 05/03/10 for submittal to FEMA.Based on the USACE report, City staff revised the nnaratinn and Maintananra Manual and Ma Finarnannv Finn(' Cnntrnl Plan in nrtnhar 2n1n PAL Progress Report Nov 2010 Map Modernization Quarterly Report Page 4 of 25 11/8/2010 Requirement #: 9 Description: Submit as -built plans of the levee certified by a Professional Engineer [44 CFR 65.10(e)]. Completion Dates and Status: 5- May -l0 :Planned 5- May -10 : Actual 100% ' Estimated % Work Complete Summary: (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; lino activity during period, just �': state No Activity') The City of Dubuque submitted the as -built plans of the Dubuque levee and floodwall system certified by a Professional Engineer, and plans for the City improvements made to the levee and floodwall system, to FEMA. If the USACE is certifying the levee, Requirement # 10 may be used in lieu of Requirements # 1 -6 & 9 Requirement #: 10 Description: Submit certification and supporting documentation that the levee provides protection from the base flood [44 CFR 65.10(e)]. Completion Dates and Status: N/A due to non -USACE Certification? no 17 -Apr -11 :Planned : Actual ° : Estimated % Work 5% Complete Summary: (Significant milestones, problem identification, etc; Reason for slippage of schedule if objectives are not met; If no activity during period, just �': state °No Activity") The City of Dubuque will evaluate the results of the June 2010 USACE report and additional engineering analyses to complete this step. PAL Progress Report Nov 2010 Map Modernization Quarterly Report 11/8/2010 IV. Overall Levee Certification Progress: Estimated Total Progress Completed: Schedule: If certification progress is not proceeding as scheduled, please describe problems or issues with the potential to impact completion date or overall ability to certify levee. (Attach documentation as required) Levee Certication Proceeding on Schedule: How Much? 50% Select Units V. Progress Code: Green (On track for complete 65.10 submission as planned) Yellow (Problems/issues potential to impact 65.10 submission schedule) Red* (Complete 65.10 package submission will likely not meet deadline) * FEMA may require a meeting to discuss inadequate process and determine the next course of action (continue with collection of 65.10 requirements, proceed to de- accredit the levee, or other) Page 5 of 25 MISSISSIPPI RIVER DUBUQUE, IOWA LOCAL FLOOD PROTECTION PROJECT OPERATION AND MAINTENANCE MANUAL Revised October 2010 Replaces Revised July 2002 Manual Masterpiece on the Mississippi City of Dubuque FOREWORD Construction of the flood protection project for the City of Dubuque, Iowa, has been completed, and the city has accepted transfer and responsibility therefore. This manual has been prepared to assist the city in complying with the regulations for operation and maintenance as prescribed by the Secretary of the Army in conformance with Section 3 of the 1936 Flood Control Act, as amended. The manual contains a copy of the approved regulations, information on procedures during flood periods, a copy of the assurance of cooperation furnished by the city, and a copy of the report form to be furnished by the city at regular intervals concerning inspection, operation, and maintenance. As -built drawings of the structures, shop drawings, a list of renewal parts, pump characteristics curves, and instructions and special tools required for installation, inspection, and maintenance of pumps and motors have been furnished the city. DUBUQUE, IOWA MANUAL FOR OPERATION AND MAINTENANCE OF LOCAL FLOOD PROTECTION WORKS I- GENERAL 1. Authorization. The Federal project for local flood protection at Dubuque, Iowa, was authorized by Public Law 87 -874, to be constructed substantially in accordance with recommendations of the Chief of Engineers in House Document 450, 87th Congress, 2d session. Repairs made following the 2001 flood are authorized under PL 84 -99. 2. Local cooperation. The authorizing legislation for the project requires that the city of Dubuque give assurances satisfactory to the Secretary of the Army that it will: a. Provide without cost to the United States all lands, easements, and rights -of -way necessary for the construction of the project; b. Hold and save the United States free from damages due to the construction works; c. Maintain and operate all the works after completion in accordance with regulations prescribed by the Secretary of the Army; d. Modify or relocate buildings, utilities, sewers, and other facilities where necessary in the construction of the project, including necessary widening of levees to provide for roadways; and e. Obtain legal control over pondage areas and prevent encroachment until substitute areas or increased pumping capacity have been provided. A local cooperation agreement for the 2001 PL 99 repairs was signed on September 6, 2001. A copy of agreement furnished by the city is included in this manual as Appendix B. 3. Description. The project consists of levees and floodwalls giving protection against a Mississippi River flood, which would have a 0.5 percent chance of occurring per year. Included are ponding areas for temporary storage of rainfall runoff, gravity outlets for discharge into the river at low stages, and pumping plants for use when gravity drainage is not possible. Gatewells are provided in drains and sewers that pass through the levees and walls. To reduce the number of drains passing through the protective structures, some drains have been connected to interceptor sewers, which discharge through the gated structures. Where the levees and walls cross streets or roads that are necessary to be retained for access, gated closure structures through or ramps over the protective structures are provided. The repairs made following the 2001 flood included riprap replacement in several locations. Riprap was lost or dislodged during the high water event. 4. Ice Harbor Closure. A closure has been provided across the entrance to the commercial harbor, known also as the Ice Harbor. It consists of two sections of hydraulic sand fill and I -walls between which is a steel miter gate with concrete abutments and miter sill. This structure is founded on wood piling; it contains a pumping plant. During high river stages, the gate will be closed and the harbor will act as a ponding area, which will be kept at a nondamaging level by pumping. 5. General Plan. The general plan of the project and cross sections of the levees, floodwalls, and harbor closure structure are shown on the as -built drawings, previously furnished. 6. Joint Inspection. The Corps of Engineers Clinton Flood Area Engineer or his authorized representative and the city's superintendent shall make an annual joint inspection of the project. The Flood Area Engineer will initiate these inspections and will coordinate with the city's superintendent on acceptable inspection dates. See Section appendix E for listing of points -of- contact, addresses, and telephone numbers. Inspection Schedule. The following annual schedule is recommended. Date Action October /November Corps of Engineers conducts joint inspection with the project superintendent. December Corps of Engineers forwards a report to the city with the inspection results. April thru June Independent inspection and corrective actions are undertaken by the city. July Report submitted by the city to the Corps of Engineers outlining actions undertaken to correct deficiencies noted in Corps' inspection report. Periodic Inspection. Periodic inspections shall be made by the city's project superintendent as specified below: a. At intervals not exceeding six (6) months. b. After a high water event or at such times deemed necessary by the project superintendent. 7. Change in superintendence. In the event of a change of superintendence for operating and maintaining the project, the name, address, and telephone number of the new Superintendent should be furnished the District Engineer. II - ORDINARY INSPECTIONS, TESTS AND OPERATIONS 8. General regulations. Ordinary maintenance of the project works shall follow an established schedule of maintenance work for each six -month period and shall include maintenance work found necessary in periodic inspections. A copy of the general regulations for maintenance and operation approved by the Secretary of the Army in accordance with authority contained in Section 3 of the 1936 Flood Control Act, Public Law No. 738, Seventy -fourth Congress, as amended and supplemented, is made part of this manual as Appendix B. Instructions in these regulations will serve as a guide for ordinary inspections, tests, and operations to insure the effectiveness of the project. As least once each year trial runs should be made on closure structures, gates, and each year trial runs should be made on closure structures, gates, and pumping stations for assurance that these features are operable when needed. Applicable paragraphs covering the project features are: Levees 208.10(b)(1) Floodwalls 208.10(c)(1) Drainage structures 208.10(d)(1) Closure structures 208.10(e)(1) Pumping plants 208.10(f) (1) Miscellaneous facilities 208.10(h)(1) 9. Project Responsibilities. It is imperative that the Superintendent and other city officials charged with project responsibilities recognize that the city should be self- sufficient in flood emergencies. This requires the city to maintain an adequate stock of equipment, supplies, and materials, which may not always be available from general sources in the city. At least twice each year responsible officials should make a careful review of the supply of items needed and of the general plan to be followed in an emergency. As a minimum requirement, the following shall be available: a. Convenient and dependable sources for riprap and embankment materials and the equipment necessary to deliver these materials to any point on the project. b. An ample supply of sandbags and sand for use at locations which require emergency sandbagging during a flood. c. A readily available source of polyethylene, 4 to 6 mils in thickness, for use in emergency sandbagging and in assuring watertight conditions at closure structures. 10. Preparations of pumping stations. The four pumping stations are located in the line of protection at Hawthorne Street, at Bee Branch, in the south abutment of the harbor closure, and at Maus Park. Paragraph 208.10(f)(I) of the Flood Control Regulations specifies detailed requirements for periodic inspection and trial operation of all operating equipment in the pumping stations to insure availability of the stations for instant use. Detailed procedures for preparatory work and trial operations to assure proper performance of the pumping equipment during flood periods follow. d. Preparatory operations. (1) Motors. Check oil level indicators and fill to proper height as necessary. (2) Pumps. Fill lubricators with grease and operate in accordance with instructions on the front of the lubrication reservoir. e. Trial operations. (1) Rotate each pump shaft by hand to ascertain that the shaft and impeller are not binding. The hand - off - automatic selector switch should be in "Off' position for this test. (2) Check the main circuit breaker to see that it is in the "On" position. (3) Turn the hand - off - automatic selector switch to "Hand" position. With the selector switch in the position, each pump can be operated independently of the float switch by using the stop and start buttons on the motor control panel. (4) Check motor frames for warmth to determine if motor heaters are operating. The heaters are turned off automatically when the motor is running. (5) Start and stop each pump by pushing the respective start and stop buttons located on the motor control panel. Don not run the pumps in- the -dry condition for prolonged periods of time as serious damage can result. Pumps may operate up t� 2 minutes in- the -dry in accordance with the manufacturer's recommendations providing they are properly lubricated with oil and grease. It is necessary to test -run the pumps once a month to keep the shafts and bearings smooth and rust -free. These monthly test -runs must be no longer than time interval stated if the pumps are operated in- the -dry condition, that is, with no water in the sump. Before each monthly test -run is performed, the pumps and motor must be properly lubricated in accordance with the instructions in the lubrication reservoir. (6) Check motor and pump performance for undue noise, vibration, or overheating. (7) Rotate the float control pulley by hand to ascertain that the float is free to travel in the float guide tube. (8) Return the hand - off - automatic selector switch to the automatic position. This will put the storm pumps in automatic operation under control of the float switch. (9) Draw the stormwater pump circuit breakers out to the test position. In this position, the controls are operable, but the breaker is not connected to the power source or to the pump motors. (10) With the stormwater pump circuit breakers in the test position; check the settings of the float control switch by rotating the float control pulley by hand to simulate the pump chamber operating elevations shown for each station. Due to delay relays in the starting circuits, the pump circuit breakers will not close immediately when the desired elevation is reached, so it will be necessary to pause until the corresponding pump circuit breaker closes before turning the float pulley to the next higher elevation. Adjust float control switch settings as required. f. Upon completion of the above test, the controls shall be set as follows: (1) Main circuit breaker in "On" position. (2) Stormwater pump selector in "Off position. III - MAINTENANCE AND OPERATION 11. Protective works. The levees provide for a very high degree of protection. It should be realized, however, that these structures are vulnerable in a number of ways, especially during high river stages. Overtopping of a levee during a flood equal to the design flood could occur by degradation of the levee from excessive erosion by wave wash. Current scour and seepage through the levees or under them also threaten their stability. Wave wash or current scour could conceivably occur even at lower stages. To be prepared to cope with such occurrences, personnel charged with responsibility for maintenance and operation should become familiar with the general regulations in Appendix B. Supplementing these regulations are detailed instructions of flood fighting, with illustrations and typical photograph, included as Appendix C. 12. Periodic patrols. Periodic patrols of the levees and floodwalls should be made by responsible personnel for assurance that these structures are not being encroached upon, that the levees are not being degraded, and that undesirable growth of vegetation is not taking place on or near the structures. 13. Continuous Patrols. When the river reaches a stage of 24 feet, continuous patrolling of the levees and floodwalls should begin. The locations of potential danger zones should be ascertained to permit prompt action and correction of any condition, which endangers the integrity of the levee or stability of the floodwalls. It should be noted that stages mentioned in this manual are based on the Dubuque gage with zero elevations 585.5. 14. Gatewells. Following is a list of fourteen gatewells in the project, the size of gates, and the rising river stage indicating that the gates should be closed. The locations by stationing may be determined from the as -build drawings of the project furnished the city. The following table replaces that in the original O &M manual. Location Station Size Closing Stage Hawthorne St 80 +10N Twin 84" x 84" 14.0 Pump station Roosevelt Street 46 +61 N 84 "RCP See note A Kilgore Dr /Hamilton 39 +78N 48 "RCP 18 2300 Kerper Blvd. 27 +05N 48 "RCP 15.0 (Dock Street) Bee Branch 38 +35 Twin 144" x 144" 13.0 Pump station E 12 Street 75 +OOA 24" DIP 24 Cargill /Newt Eighth St sewer 68 +06 78 "RCP 13.0 Cooling water 68 +49 48" welded steel See note 1 emergency discharge pipe Power Co. intake 69 +20 66" x 66" See note 2 V -C Chemicals 88 +20 24 "RCP 23.0 Power Co. discharge 92 +77 78 "RCP 18.0 Fischer Cold Strg 108 +30 24 "RCP See note B Dodge St sewer 131+20 84 "RCP 16.0 See note C Maus Park pump 169 +24 48 "RCP 16.0 Station See note C San pressure sewer 181 +00 30 "RCP See note D Note 1. This is a butterfly valve located in the power company's seal well and is to be closed when the gate at station 92 +77 is closed. The power company's condenser system pumps will provide the head necessary to discharge the cooling water over the levee through the emergency discharge line. Note 2. Personnel from the power company will regulate the intake water by opening and closing the gate as required. The gate should be closed if a rupture occurs in the flume landward of the gatewell. Note 3. Not applicable. Note A. The Roosevelt Storm Sewer is a pressure gravity line due to its high elevation inverts. This gate is to be left open unless a break occurs in the Roosvelt Street Sewer. Water will back into the water intakes on Kerper Blvd. when the river stage reaches 25 feet. Flap gates are installed in each water intake. In case of a break in the storm sewer line the gate on this 84" sewer can be closed at the levee. Once the gate is closed, a pump would need to be installed at the Kerper intakes for storm water control during rain events. Note B. This gate is no longer to be regulated. This section of I -wall has been covered with earthen fill. The gate will be left in the closed position at all times. The gate can be returned to service in the future if ever necessary. Note C. This gatewell closure is revised to 16.0 in lieu of 12.5 in the original O &M manual. Note D. This gatewell was taken out of service. The 30" pipe no longer routes through the levee. The gate - closing operations must be completed by the time rising river levels reach the stage indicated above. The City Engineer or the Superintendent should evaluate the daily rise of the river and the time and manpower needed to close the gates at each of the stages indicated above. The following paragraph provides information on gate- operating procedures and operating time for opening and closing the gates. 15. Sluice gate operation. The sluice gates and pedestal lifts for the interior drainage system and pumping stations were supplied by ARMCO. All gates, except for those on the cooling water emergency discharge line, station 68 +49, and the sanitary pressure sewer, station 181 +00, have hand -wheel lifts. The latter have butterfly valves rather than sluice gates, and have manually operated hand -wheel flood stands. The cable and drum operation of the sluice gates in the Bee Branch pumping station have been retained from a precedent local project. The following information on the pedestal lifts covers the operations characteristics of the models on the project. Maximum crank turns for Model Gear ratio 1 foot of gate movement CPE -12 12:1 576 CPE -4 4:1 192 CPE -2 2:1 96 16. Closure structures. The tabulation below lists the size, location, and river stage and elevation of the sills of thirteen single -leaf closure structures. The miter -gated harbor closure is considered in paragraph 17. The following table replaces that in the original O &M manual. Station Vicinity Gate size River Stage 44 +32A Kerper at E12th 9' x 18' Removed and infilled with concrete 50 +32A Purina Dr Barge Dock 9' x 18' 24.5, See note E 52 +13A Purina Dr. Crane Dock 8' x 16' 24.5, See note E 86 +15A Koch Dr Cargill Dock 8' x 16' 24.5, See note E 88 +38A Koch Dr Cargill Dock 9' x 18' 24.5, See note E 69 +28 Alliant Power Coal Yard 8'4" x 4'6" 25.5 71 +87 Alliant Power Coal Yard 8' x 18' 25.9 105 +29 Riverwalk —Port of Dubuque 8' x 18' See note F 110 +31 Riverwalk — Port of Dubuque 8' x 13'9" See note F 116 +32 American Trust River 12' x 18' 21.5 River Boat Landing 124 +38 Terminal Street/Jones St 12'4" x 4'6" 21.1, See note E 126 +70 Terminal Street Barge Dock 12'4" x 4'6" 21.1 15 +72W Terminal Street Barge Dock 12' x 18' 21.4 Note E. These gates have been rehabilitated by the City. Note F. These gates no longer exist. The gates were removed during the riverwalk project and were infill with concrete and then covered with earthen fill. The gates should be inspected each spring to insure that the rubber seals are not worn, that the hinges are not binding, and that all the necessary hardware is available. The gates should be closed and bolted in place, and the seals should be inspected for watertightness and flexibility at this time. 17. Harbor closure. The harbor closure is located across the entrance to a commercial harbor, known also as the Ice Harbor. It consists of a structural steel miter gate with concrete abutments and a miter sill, located between two sections of hydraulic sandfill and I- walls. This structure is founded on wood piling. It contains gate- operating machinery and a pumping plant with two units, each rated 7600 gpm with 28 total dynamic head. During high river stages, the gate will be closed and the harbor will act as a ponding area, kept at a non - damaging level by pumping. The circuit breakers for the entire structure are located in the pumping station in the south abutment. They must be closed to activate the equipment being tested. a. Preparatory operations - miter gate. (1) Gate operating machinery. Check oil cups and grease fittings; fill with lubricants recommended by manufacturer. Grease sheave base under sweep of gate operating beam. (2) Miter gate. Check grease fittings; fill with lubricants recommended by manufacturer. Check pintle grease pipes for ruptures and evidence of escaping lubricant. Such rupture and lubricating failure may ultimately cause binding of the pintle bearing and prevent closing the gate. (3) Periodic tests. Intervals not to exceed 90 days. From the control panel on top of the south abutment the leaves may then be swung to partial or complete closure as desired. Bring leaves to recessed position and deactivate station. Open circuit breaker inside pump station. b. Flood conditions - miter gate. To decrease the length of interruption of passage through the structure, there may be a tendency to postpone closing of the gate and initiating of ponding potential until a river stage of 16 feet or even 20 feet is reached. As the flow into the harbor from a heavy, prolonged rainstorm greatly exceeds the capacity of the pumps, the following rules are recommended for guidance: Do not close gate. (1) River stage 16 feet (a) Local heavy showers, river stage forecast 17 feet: (b) Local heavy showers, river stage forecast over 18 feet: Close gate, pump harbor down to 10 -foot stage. (c) No precipitation, river stage forecast over 18 feet: Close gate, pump harbor down to 10 -foot stage. (2) River stage 17 feet (a) River stage forecast over 18 feet: Close gate, pump harbor down to 10 -foot stage. The stage - equalizing gate located on the river face of the north abutment must be closed to prepare the harbor for pondage. c. Recessing the miter gate. After a flood peak, the river may recede to, and for some time even fluctuate about, some intermediate level lower than the 18 -foot flood stage while the harbor is still at some discretionary lower stage based on local experience and evaluation of precipitation forecast. As the gate cannot be operated under unbalanced pressure, the stage - equalizing gate located on the river face of the north abutment must be opened some three days before a non - damaging river stage is anticipated. After stage equalization, the gate may then be recessed and the station closed down by reversing the order of steps taken to close the gate. 18. Sandbag closures. In the event of extreme high water, stage of 29.5 or higher, a sandbag closure will have to be placed across the tracks of the Canadian National- Chicago Central Railroad at approximate station 180 +96. At approximate station 4 +50NA near the lock & dam, a similar closure must be placed across the tracks of the Canadian Pacific Railroad at a 31.5 -foot stage. Coordination with officials of both railroads must be carried out prior to closure. The sandbag closures should have a minimum top width of 2 feet and a minimum base width three times the height of the closure. Sandbagging should start at the south end of the levee due to its lower elevation. Due to the location of the sanitary sewer force main at the south end of the levee extra time should be allowed to sandbag around the sanitary sewer force main. 19. Hawthorne Street pumping station. When the river approaches the gate closing stage of 14 feet, the station operator should review the manufacturer's operating instructions as furnished under the original construction contract. He then closes the main circuit breaker, closes the sluice gates in the gravity outlet, and starts the pumps as described in paragraph 10. The controls are set for three sequences of pump operation as follows: Sequence A. Pump No.1 starts at El. 601.5. Pump No.2 starts at El. 602.0 and runs in parallel with pump No.1. Pump No.3 starts at El. 602.5 and runs in parallel with pumps Nos. 1 and 2. Each pump stops at El. 600:0 Sequence B. Pump No.2 starts at El. 601.5. Pump No.3 starts at El. 602.0 and runs in parallel with pump No.2. Pump No.1 starts at El. 602.5 and runs in parallel with pumps Nos. 2 and 3. Each pump strops at El. 600.0 Sequence C. Pump No.3 starts at El. 601.5. Pump No.1 starts at El. 602.0 and runs in parallel with pump No.3. Pump No.2 starts at El. 602.5 and runs in parallel with pumps Nos. 3 and 1. Each pump stops at El. 600.0 When the river recedes to El. 599.5 a. Open the sluice gates in the gravity outlet. b. Repeat, in reverse order, the steps taken to activate the station. c. Turn pump control switch to "Off' position. d. Retain main circuit breaker in 'On" position. e. Inspect, oil and grease plant equipment, restore tools to proper places, and replace supplies. f. Remove fire hazards. 20. Bee Branch pumping station. This open -air pumping station and the adjacent control shed have been retained from a preceding local project, modified and enlarged with the addition of a 24 -inch axial flow pump, rated 20,000 gpm at 25.4 feet TDH. New 60 -inch butterfly valves and operators have been provided for the two 90,000 gpm pumps. The 24 -inch pump has an automatic siphon breaker. It will use the preceding level control. The winch - operated sluice gates and the two older pumps have for years been started and operated by manual controls. This procedure will remain in force. When the 24 -inch pump is turned on it will operate automatically to keep the ponding area at El. 592. Preparatory and trial -run operation are standard procedures described in paragraph 10. 21. Bee Branch Pumping Operation. When the river approaches the gate - closing stage of 14 feet, the station operator should review the manufacturer's operating instructions furnished under the construction contract and determine that the 72 -inch sluice gate in the 8th Street manhole is closed, diverting the flow into the ponding area. He will then: a. Close the Bee Branch sluice gates. b. Close the main circuit breaker. c. Push the start button on the motor control panel. d. If it rains, start the 60 -inch pumps. The maximum ponding stage is El. 602.0. When the river recedes to the 14 -foot stage and continues falling: a. Open the sluice gates in the gravity outlet. b. Repeat, in reverse order, the steps taken to activate the station. c. Turn pump control switch to "Off position. d. Retain main circuit breaker in "On" position. e. Open the 72 -inch sluice gate in the 8 Street diversion manhole f. Inspect, oil, and grease plant equipment, restore tools to proper places, and replenish supplies. g. Remove fire hazards. 22. Harbor closure pumping station. a. Preparatory and trial -run operations. These are standard procedure described in paragraph 10. b. Flood conditions. There is a tendency to retain access to the harbor as long as practicable, and hence to delay as late as permissible before the harbor is converted into a ponding area. Consequently, some discretion is warranted in selecting the river stage at which the miter gate must be closed and the pumps set in operation. As described in paragraph 17b(1), stages of 16 to 17 feet may be considered, depending on precipitation and the forecast of ultimate flood crest. It is not advisable to delay closing of the gate until the damaging 18 -foot stage has arrived because the runoff from a heavy local rainstorm greatly exceeds the capacity of the pumps. When the river approaches the selected gate closing stage, the station operator should review the manufacturer's operating instructions as furnished under the construction contract. He then takes the following steps. (1) Close the equalizing sluice gate on the river face of the north abutment. (2) Close the miter gate. (3) Open the sluice gate in the pumping station intake. (4) Close the main circuit breaker. (5) Push the start button on the motor control panel. When the river is receding towards the non - damaging stage, it will require about 72 hours to equalize the pressures on the miter gate so that it may be opened. Thus it will require experience and good judgment in selecting the best time to close down the pumping station. It is recommended that this would be three days before the non - damaging river stage is anticipated, and the necessary steps are in the reverse order from starting the station, thus: a. Push the stop button on motor control panel. b. Retain main circuit breaker in the "On" position. c. Turn pump control switch to "Off' position. d. Open the equalizing sluice gate on the river face of the north abutment. e. When the gate pressures are equalized, at or below the non - damaging stage, open the miter gate as described in paragraph 17. f. Inspect, oil, and grease plant equipment, restore tools to proper places, and replenish supplies. g. Remove fire hazards. 23. Pumping station at Maus Park. When the river stage is predicted to exceed 18.0 feet, close the gravity gate at river stage 16.0 and start both pumps. Place pumps on automatic operation, which will take the forebay down to elevation 596.0 when the forebay reaches elevation 596.5, pump No.1 will start and pump No.2 will start at elevation 597.5 and pump the forebay back down to elevation 596.0. The pumping station operator should review the manufacturer's operating instructions as furnished under the original construction contract so that he can closely monitor the operation of the pumping equipment at the start of pumping. The following procedures govern the placing in service and operation of the pumping station during floods. a. Assure that the main circuit breaker is in the "On" position. b. Tum the storm pump control switch from the "Off' position to automatic. c. Close gravity sluice gate. d. When the pumps start to operate, maintain the station as follows: (1) Keep the trashrack clear of debris. (2) Assure that pumps receive proper lubrication and correct any conditions indicated by undue noise, vibration, or overheating. 24. Maus Park Pumping Operation. When the river stage is falling and falls below river stage 16.0 feet (elevation 601.0), pumps shall be taken out of operation. With the continuation of receding stages, the following operations shall be accomplished at the station. a. Open sluice gates on gravity sewer. b. Retain main circuit breaker in the "On" position. c. Turn stormwater pump control switch to "Off' position. d. Inspect, oil, and grease plant equipment, restore tolls to proper places, and replenish supplies. e. Remove fire hazards. IV - INSPECTIONS, TESTS, AND OPERATIONS FOLLOWING FLOOD PERIODS 25. General. Immediately following a flood period or as soon as conditions permit, the Superintendent should initiate a general cleanup of all flood control facilities, make a general inspection of the project, and repair all damage to the project works. Demobilization of flood control activities should include the release of emergency personnel, an inventory of supplies, and cleaning, storing, and replenishment of equipment and supplies. Procedures will revert to ordinary maintenance. 26. Levees and floodwalls. As soon as practicable "following high -water periods, the Superintendent shall initiate a program for repair of all damage to the levee and the riverbanks adjacent to the floodwalls. The repair program should include replacing embankment or riverbank materials in eroded areas, relaying or replacing of riprap in disturbed areas, resodding or reseeding of damaged sodded areas, and the correction of any settlement or bank - caving conditions affecting the stability of the floodwalls. 27. Drainage structures. As river levels drop to the stages indicated in the tabulation in paragraph 16, the sluice gates should be opened as soon as possible. Immediately following the flood period, all gates and structures should be the subject of inspection and cleaning to assure that they can function properly and to determine the extent of any damage, which may have occurred. Necessary repair should be completed as soon as possible. 28. Closure structures. When floodwaters fall below the elevation of the sills of each closure structure as shown in the tabulation in paragraph 16, the gates should be opened as soon as possible. If the post -flood inspection reveals defects or damage to any components of the closure structures, such as the toe drains, slope protection, or concrete abutments, the condition should be corrected as soon as possible. 29. Post -flood report. After each flood, the Superintendent shall compile a post -flood report and forward one copy to the District Engineer, U.S. Army Engineer District, Clock Tower Building, Rock Island, Illinois 61201. The report should be a complete flood history. It should include a log of operations, a daily tabulation of river stages, a discussion of pertinent factors in operation and maintaining the project, and any other useful information. Operation and maintenance factors should include problems encountered, weather conditions encountered (including effects of ice on operation), damage incurred, repairs required, and other significant factors which occurred during the operation and maintenance of the project during the flood period. The report should also include a summary of the time and cost of manpower and the quantities and costs of supplies and equipment, which the protective effort required. The post -flood report, if properly recorded, well- documented, and readily available to responsible officials, can prove invaluable in planning for future floods. 30. Semiannual report. In addition to the post -flood report, paragraph 208.10(6) of the general regulations, Appendix B, the Superintendent is required to submit a semiannual report to the District Engineer, covering inspection, maintenance, and operation of the protective works. The importance of regularly scheduled inspections and preventive maintenance activities is stressed as being the principal insurance against major problems arising during floods. 31. Report Format. A copy of a suggested report form, which indicates the project features that should be inspected and reported on, is shown as Appendix F. The inspections and report should be made in the spring before the normal high -water season and in the fall. 32. Pumping Station Generators Listed below is the information for the power generators located at the four pumping stations. HAWTHORNE STREET Service Provider: Electrical Engineering & Equipment Company (3E) 206 East 5 Street Davenport, IA 52801 Business Telephone 1- 888 - 323 -2214 After Hours Service 1- 563 - 320 -3428 Generator Make: Kohler Generator Model: 600REOZM Serial # 2139101 BEE BRANCH Service Provider: Northstar Power Company 2402 SE Hulsizer Road Ankeny, IA 50021 Business Telephone 1- 515 - 964 -6100 After Hours Service 1- 319 - 398 -8127 Generator Make: Marathon Generator Model: 742FSM4318 Serial # 306382 -1 -1 -0409 ICE HARBOR Service Provider: Altorfer Power Systems 2550 — 6 Street SW Cedar Rapids, IA 52404 Business Telephone 1- 319 - 365 -6500 After Hour Service 1- 319 - 398 -9127 Generator Make: Caterpillar Olympian Generator Model: D200P4 Serial # 157523/07 MAUS LAKE Service Provider: Electrical Engineering & Equipment Company (3E) 206 East 5 Street Davenport, IA 52801 Business Telephone 1- 888 - 323 -2214 After Hours Service 1- 563 - 320 -3428 Generator Make: Kohler Generator Model: 100REOZJB Serial # 2134214 MISSISSIPPI RIVER DUBUQUE, IOWA LOCAL FLOOD PROTECTION PROJECT Emergency Flood Control Plan Revised October 2010 Masterpiece on the Mississippi City of Dubuque Mississippi River Level Information The following web sites provide the needed information concerning the current river levels and predictions: US Army Corps of Engineers http://www2.mvr.usace.army.mil/WaterControl/new/lavout.cfm National Weather Service Advanced Hydrologic Prediction Service — Weather Forecast Quad Cities http://www.crh.noaa.gov/ahps2/index.php?wfo=dvn National Weather Service — La Crosse Wisconsin Mississippi River — Guttenberg Iowa north to Lake City Minnesota http://vvww.crh.noaa.gov/riverwatch/forecasts/ARXRVDAR.shtml National Weather Service — Quad Cities Mississippi River — Dubuque Lock and Dam #11 south to Keokuk Iowa http://www.srh.noaa.bov/riverwatch/forecasts/DVNRVDDVN.shtml CITY OF DUBUQUE, IOWA FLOODWALL CLOSURE ACTION STEPS National Weather Service - Quad Cities (563) 386 -3976 ext. 493 Note (All information within ( ) are names from original flood control plans) River Stage - All river stage levels are based on readings at Star Brewery Drive south side of the train bridge (E.4th Street) - River Stage Gauge Zero 585.5. RIVER STAGE PREDICTION LOCATION ACTION 13.0 14.0 8th Street Close 8th Street gatewell. 13.0 14.0 Bee Branch Close Bee Branch Basin gates and pump down to 10.0. 14.0 16.0 Hawthorne Close Hawthorne Street gates and pump down to 13.0. 15.0 16.0 2300 Kerper Blvd. Close gate located behind Miller Electric (Berwangers) (Dock Street) 15.0 16.0 Ice Harbor Test Ice Harbor gates and notify Ice Harbor users of likely closure. 16.0 17.0 Ice Harbor Close Ice Harbor gates at 16.0 and pump down to 10'. 16.0 17.0 Dodge /Terminal Close Dodge Street gate. 16.0 17.0 Maus Lake Close Maus Lake gate and pump down to 11.0. 16.0 18.0 8th Street Direct Alliant Energy to pump cooling water over flood dike at 8th. 16.0 18.0 Commercial Street Set up City 10" diesel pumps to operate from manhole north of (E. 4th Street) the railroad tracks at Commercial Street . (Dock Board Gate) 17.0 18.0 Commercial Street Verify with Alliant Energy that the cooling water is being (E. 4th Street) discharged into Dove Harbor. Close the Commercial Street (Dock Board) gate and operate diesel pumps. 18.0 19.0 Ice Harbor Shut power off at the river side of the landing. 18.0 19.0 Kilgore Drive Close Kilgore gate at Hamilton Street 18.0 21.0 Ice Harbor Remove light poles in American Trust Plaza area. 19.0 21.0 Ice Harbor Remove metal ramp at American Trust Plaza and close (Molo) gate. 20.0 21.0 Jones @ Terminal Close Dubuque River Terminals (Inland Molasses) gate. 20.0 21.0 Terminal Street Close Dodds Warehouse gate. 21.0 24.0 Check supply of sandbags. (Fill 5,000 bags) 23.0 24.0 E. 7th Street Install 4" pump at Peavey (Virginia Carolina) gate. 24.0 25.0 E. 7th Street Close two Alliant Energy (Interstate Power) gates. Alliant Energy will close gates under the direction of the City. City Public Works will verify with Alliant Energy that the gates are closed. 24.0 25.0 E. 12th Street Install pipe plug and install 3" pump at Purina Drive barge dock. (Olin Mathieson). RIVER STAGE PREDICTION LOCATION ACTION 24.0 25.0 E. 12th Street Close gate and install 4" pump at Cargill Terminal. (Thruput Terminal). City will install pump in Newt yard drain and run discharge hose over the levee into Dove Harbor 24.0 25.0 E. 12th Street Close gates at Purina Drive barge facility (Olin Mathieson). 24.0 25.0 E. 12th Street Remove tracks and close gates at Cargill Terminal (Thruput Terminals). 25.0 26.0 27.0 28.0 Additional Notes: Unprotected Areas River Stage 22' - 23' River Stage 24' River Stage 25' Revised 10/2010 26.0 27.0 30.0 Roosevelt Storm Sewer 30.0 - 33.0 Inspect manholes along Roosevelt storm sewer for leakage. Fill 10,400 sandbags for railroad closures at each end of flood control system. Notify the Railroad of possible railroad closure if the river prediction reaches 30 feet. Notify both railroads to close the train tracks and remove rails. Sandbag railroads at each end of the dike. Use 5,200 bags each. 15.0 16.0 Kerper Blvd. E. 16 Street gate is closed, valve is removed. No action necessary. 15.0 16.0 E. 6th Street Gate is closed, valve is removed. No action necessary. 17.0 18.0 Terminal Street No action required. Water will be at C.B. gate level. 18.2 19.0 Ice Harbor Water reaches top of cascading steps at the American Trust Plaza area. No additional action required. The Roosevelt Street storm sewer is a pressurized system which will back into the water intakes on Kerper Blvd. when the river stage reaches 25 feet. Flap gates are installed in each water intake. In case of a break in the storm sewer line the gate on this 84" sewer can be closed at the levee. Once the gate is closed, a pump would need to be installed at the Kerper intakes for storm water control during rain events. Water from Catfish Creek goes over Mar Jo Hills Road. Set up type III barricades to close the roadway. Water covers Admiral Sheehy Drive south of 151/61 and near Greyhound Park Road. Set up type III barricades as needed. Water starts to cover road at parking lot at the south end of McDonald Park. Set up type III barricades as needed. Base Data: EMERGENCY FLOOD CONTROL PLAN Revised September 2010 Zero River Stage, Coast and Geodetic survey Base Datum is 585 feet above sea level. Pool State elevation 592 7 feet Dubuque River Flood Stage 17 feet Hawthorne area water elevations are two feet higher than the gauge reading at the end of Star Brewery Drive. All references in this flood plan are based on the river gauge located at the foot of Star Brewery Drive beside the railroad bridge. A. GENERAL STATEMENT This plan is based on the utilization of the entire floodwall facility. Operation Directors: Public Works Director Street/Sewer Maintenance Supervisor PRE -FLOOD INSPECTIONS Each spring divers should check the Ice Harbor gates and the Bee Branch gates and remove any debris that would prevent the gates from closing. All pump motors and generators should also be checked prior to the possibility of spring flooding. B. ACTIONS REQUIRED AT SPECIFIC RIVER STAGES 1. River Stage 13 feet River Prediction 14 feet a. Public Works Department personnel will close the 8 Street gate. b. Under the direction of the Public Works Department, Water Pollution Control personnel will close the Bee Branch Basin gates and pump detention basin down to 10 feet. Note: The Public Works Department will notify Water Pollution Control personnel to operate large pumps manually during rain events (see Water Pollution Control Personnel Assignments Attachment B). The 20,000 g.p.m. pump will be operated by the Water Pollution Control personnel on "auto" to keep the detention basin at 10 feet. 2. River Stage 14 feet River Prediction 16 feet a. Public Works Department personnel will close Hawthorne Street gates. b. Public Works Department personnel will start pumps and pump detention basin down to 598 elevation (13 feet stage, which equals 3.5 on recorder in station. Note: Water in the Hawthorne Street detention basin will be kept below 601.64 to prevent flooding from the gate drain in the alley between Kerper Blvd and Garfield Extension. Pumps shall be checked periodically once in the morning and again in the evening. During heavy rain events, the pumps should be checked during the storm event. 3. River Stage 15 feet River Prediction 16 feet a. Public Works Department personnel will close the gate behind Miller Electric, 2300 Kerper Blvd.. Water from the 48" storm sewer will then flow into the Bee Branch detention basin. b. Public Works Department personnel will test the Ice Harbor gates and notify the Coast Guard and businesses using the Ice Harbor of the possibility of an Ice Harbor closure. See Attachment C. 4. River Stage 16 feet River Prediction over 17 feet a. Public Works Department personnel will close the Ice Harbor gates and pump Ice Harbor down to pool stage — elevation 595 (10') b. Public Works Department personnel will close the Dodge Street gate and Maus Lake gate. The pumps will then be started at Maus Lake and the detention basin pumped down to elevation 596 (11'). Note: Once the gates are closed at Hawthorne Street, Ice Harbor and at Maus Lake, all pumps should be set on auto and the drip oil filled twice a day. In case of a power outage, the generators will start and provide power to all pumps until the power is restored. 5. River Stage 16 feet River Prediction 18 feet a. Public Works Department personnel will direct Alliant Energy to pump cooling water over flood dike at 8th Street by closing butterfly valve in the concrete box well at end of 8 Street. To notify Alliant Energy, call the control room located at the power plant (563) 587 -6201. The control room is in operation 24/7. See Attachment D for additional numbers. b. Public Works Department personnel will set up City owned 10" diesel pumps stored at the Municipal Services Center to operate from manhole located on Commercial Street, north of the railroad bridge. (Star Brewery Drive). 5.1 River Stage 18 feet a. Public Works Department personnel will verify with Alliant Energy that the cooling water is being discharged into Dove Harbor and then Public Works Department will close the gate (78" sewer) located on Commercial Street north of the railroad bridge and operate two 10 "diesel pumps around the clock. (See Attachment A for personnel assignments) 6. River Stage 18 feet River Prediction 19 feet a. Public Works Department personnel will shut off power to the river side of the levee at the American Trust Plaza north of the Ice Harbor in the Port of Dubuque. b. Public Works Department personnel will close the (Brown Publishing Company) gate (48" sewer) located along Kilgore Drive at Hamilton Street. This storm water will now flow to the Bee Branch detention basin. 7. River Stage 18 feet River Prediction 21 feet Public Works Department personnel will remove the light poles and metal ramp on the river side of the floodwall at the American Trust Plaza north of the Ice Harbor in the Port of Dubuque. 8. River Stage 19 feet River Prediction 21 feet Public Works Department personnel will close the American Trust Plaza gate north of the Ice Harbor in the Port of Dubuque. The two (2) Dubuque River Terminals (Inland Molasses) gates located at Jones and Terminal Streets, along with the Dodds Warehouse gate located just south of the Dubuque River Terminals (Inland Molasses) gates, will also be closed. 9. River Stage 21 feet River Prediction 24 feet The Public Works Department will provide an off -road vehicle and four employees assigned to two (2) twelve (12) hour shifts to patrol continuously the flood control system. The employees shall be equipped with Public Works radios and cell phones. If any problems are found during the inspection of the flood control system, the Street/Sewer Maintenance Supervisor or Public Works Director shall be notified immediately by cell phone or Public Works radio. Public Works Department personnel will fill and store 5,000 sandbags for use on boils. All boils will be marked to be monitored by patrols, but not disturbed or encircled unless flow increases enough to carry material with it. When needed, a boil will be ringed with sandbags to a height of 5 feet, with the width of the bottom row of sandbags one and one half times the height. A boil containment with an inside circle diameter of 5 feet will require 2,300 bags. The Public Works Department will continue to fill and store 5,000 sand bags on pallets to maintain a ready inventory of 5,000 bags to use on sand boils. 10. River Stage 22 feet River Prediction 23 feet The Public Works Department will continue to patrol the flood control system. 11. River Stage 23 feet River Prediction 24 feet Public Works Department personnel will install a 3" pump and close the Peavey (Virginia Carolina) 24" gate located between the council circle and the Peavey loading dock. 12. River Stage 24 feet River Prediction 25 feet a. Public Works Department personnel will continue to patrol the flood control system 24/7. b. Public Works Department personnel will close the two Alliant Energy gates (sill elevation 25.5). c. Public Works Department personnel will install a pipe plug and 3" pump at Peavey (Olin Mathieson). d. Public Works Department personnel will install a pipe plug at Cargill (Thruput Terminal) at flap gate. e. Public Works Department personnel will notify Cargill (Thruput Terminals) to remove tracks and close the gates. f. Public Works Department personnel will close the gate at the Peavey Terminal (Olin Mathieson). (See Attachment A for Public Works Department Personnel Assignments) 13. River Stage 25 feet River Prediction 26 feet Water in Roosevelt storm sewer, which is pressurized, will now back into catch basins along Kerper Boulevard. Flap gates are installed on each catch basin; rain water will pond in street until it is 6" deep and then flow into sand to seep away. In case of rupture in this line, gate on the 84" sewer can be shut at the floodwall and pumps installed to pump water over the floodwall. 14. River Stage 26 feet River Prediction 27 feet Public Works Department personnel will continue to patrol the flood control system 24/7. Public Works Department personnel will notify the railroads of possible rail closure if the river stage prediction reaches 30 feet. The Public Works Department will fill and store 10,400 sand bags on pallets and notify railroads of the possibility of a rail closure. 1 15. River Stage 27 feet River Prediction 30 feet City will notify railroads to remove tracks at both ends of the levee closure. Sandbagging should start at the south end of the levee due to its lower elevation. Extra time is also needed at the south end of the levee to sandbag around the sanitary sewer force main. 16. River Stacie 28 feet River Prediction 30 feet to 33 feet Public Works Department personnel will sandbag railroad tracks at each end of floodwall. ATTACHMENT A CITY OF DUBUQUE PUBLIC WORKS DEPARTMENT STAFF SEWER MAINTENANCE Foreman Basten, Mike 583 -9578 Conner, Vince 556 -7972 Equipment Operator II Ron Gulyash 590 -0489 Equipment Operator I Chapman, Dan 557 -7217 Christ, Steve 588 -9677 Kelly, Bill 582 -5807 Kloft, Chris 495 -8558 Ludwitz, Randy 557 -2175 RIVERFRONT MANAGEMENT Maintenance Worker Sweeney, Kevin 556 -8129 STREET MAINTENANCE Foreman Blondin, Bob 552 -1709 Davis, Paul 557 -7031 McClean, Ken 556 -1980 Nadermann, Terry 556 -7526 Odefey, Brian 589 -0051 Equipment Operator II Bowman, Russ 556 -8125 Duve, Luke 588 -9423 Gross, Dale 582 -8487 Oberhoffer, Steve 556 -2064 Powers, Jim 599 -0302 Equipment Operator I Ben, Jerry 552 -2805 Leytem, John 583 -2024 Dement, Paul 451 -3218 Stohlmeyer, Paul 557 -7846 Maintenance Worker Lochner, Brian 556 -4061 Shaffer, Terry 582 -6110 Truck Driver Bakey, Dave 582 -7174 Blocklinger, Mark 582 -2337 Breson, Joe 556 -2790 DeHeck, Pat 556 -7121 Gansen, Bill 583 -5148 Leibfried, Bill 582 -1043 Meyer, Mark 451 -7823 Valentine, Gary 556 -6659 ATTACHMENT B CITY OF DUBUQUE WATER POLLUTION CONTROL PLANT STAFF BEE BRANCH PUMPING STATION PUMPING STAFF Maintenance Supervisor Wayne Polsean 582 -3393 Cell 542 -8017 Equipment Mechanic Adam Leeser 599 -4433 Fred Timmermans 556 -4776 Cell 663 -2839 Office 589 -4176 A & G Electric 588 -4253 Mike Reinert (Electrician) 590 -1590 ATTACHMENT C ICE HARBOR CLOSURE NOTIFICATIONS ICE HARBOR Fire Chief Dan Brown 589 -4160 CeII 543 -6521 Headquarters 589 -4172 Coast Guard CeII Phone on the Boat Newt Marine 557 -1855 Carter Newt — CeII 543 -0820 Jim Streff — CeII 599 -0127 Bill Ries — CeII 543 -1247 Sheila — CeII 599 -0126 Dan Arnold 541 -6378 Dubuque River Rides 583 -8093 Walt — CeII 590 -3157 National Mississippi River Museum and Aquarium Mark Hantelman — CeII 582 -1965 582 -2295 580 -6294 (319) 524 -7511 557 -9545 — ext. 244 543 -2150 ATTACHMENT D FLOODWALL CLOSURE CONTACTS Alliant Energy Craig Crawford, Plant Manager Doug Alexander, Operations Manager Duane Fritz, Acting Maintenance Manager Jim Murphy, Environment & Safety Control Room (24 Hours) Cargill AgHorizons Dave Olson, Dubuque Farm Service Center Manager 556 -4532 Cell (563) 249 -5220 Corps of Engineers Larry Melaas, Lead Flood Area Engineer — Office Office Cell Fax Home Home Cell Larry.g.melaas(ausace.armv.mil Tom Mack, Assistant Flood Engineer — Office Office Cell Fax Home Home Cell Chris Haring, Assistant Flood Engineer — Office Home Troy Hythecker, Assistant Flood Engineer Home Home Cell Michael Tarpey, Assistant Flood Engineer - Office Home Matt Zager, Assistant Flood Engineer — Office Home Home CeII Jim Stiman William Tague National Weather Service Quad Cities Maren Stoflet, NOAA/SWS Service Hydrologist E -mail: Maren.stofletanoaa.gov Bee Branch Pumping Station Park Division 587 -6226 587 -6223 (608) 725 -2273 587 -6213 587 -6201 (309) 794 -5323 (309) 738 -7260 (309) 794 -5698 (815) 273 -3544 (563) 212 -3544 (563) 386 -0651 (309) 737 -1766 (309) 794 -5795 (309) 534 -8312 (309) 236 -7586 (309) 794 -5885 (815) 985 -6372 (563) 823 -1561 (563) 650 -4182 (309) 794 -5179 (309) 764 -5110 (309) 794 -5218 (563) 344 -8551 (563) 508 -3230 (309) 794 -5849 (309) 794 -5164 (563) 388 -0672 (563) 391 -7094 ext 493 583 -9689 589 -4260 Bob Fritsch — CeII 543 -1732 Canadian Pacific Railroad (north) Communication Control Center (800) 777 -8117 Canadian National — Chicago Central Railroad (south) (708) 332 -6750 ATTACHMENT E FLOODWALL PUMPING STATION GENERATORS HAWTHORNE STREET Service Provider: Electrical Engineering & Equipment Company (3E) 206 East 5 Street Davenport, IA 52801 Business Telephone 1- 888 - 323 -2214 After Hours Service 1- 563 - 320 -3428 Generator Make: Kohler Generator Model: 600REOZM Serial # 2139101 BEE BRANCH Service Provider: Northstar Power Company 2402 SE Hulsizer Road Ankeny, IA 50021 Business Telephone 1- 515 - 964 -6100 After Hours Service 1- 319 - 398 -8127 Generator Make: Marathon Generator Model: 742FSM4318 Serial # 306382 -1 -1 -0409 ICE HARBOR Service Provider: Altorfer Power Systems 2550 — 6 Street SW Cedar Rapids, IA 52404 Business Telephone 1- 319 - 365 -6500 After Hour Service 1- 319 - 398 -9127 Generator Make: Caterpillar Olympian Generator Model: D200P4 Serial # 157523/07 MAUS LAKE Service Provider: Electrical Engineering & Equipment Company (3E) 206 East 5 Street Davenport, IA 52801 Business Telephone 1- 888 - 323 -2214 After Hours Service 1- 563 - 320 -3428 Generator Make: Kohler Generator Model: 100REOZJB Serial # 2134214 DIVING Midwest Underwater Specialties Andrew Zinn, Owner — Office Cell Triton Diving Services Brett Higby, Operations Manager CRANE SERVICE A -1 Crane Rental Rod Maas, Manager — Office Cell Splinter Crane Service Tri -State Crane & Rigging Service SLUICE GATE REPAIRS Bert Gurney & Associates, Inc. Don Franklin 6503 Center Street Omaha, NE 68106 Fax E -mail: bertqurnev(a�bgagurney.com ATTACHMENT F FLOODWALL SUPPLIES & SERVICES SANDBAGS Corp of Engineers Larry Melaas, Lead Flood Area Engineer — Office Farber Bag & Supply Jeffrey Spahn, General Manager — Office After Hours E -mail: isfarberbag(a�vou.sq.net Frank Jim SAND Molo Sand & Gravel Corporate Office After hours goes to an answering service for Mark Molo Flynn Company After Hours: Steve Kluesner Greg Featherston Apex Concrete After Hours: Chad Their Bill Decker (563) 324 -5194 (563) 505 -2259 (563) 459 -0606 583 -5735 599 -4596 588 -4052 582 -1261 (402) 551 -7995 (402) 553 -5879 (309) 794 -5323 583 -6304 (563) 580 -2608 583 -7957 588 -4591 557 -7540 583 -6642 590 -4456 590 -0961 582 -1208 543 -1095 213 -0448 ATTACHMENT G CITY OF DUBUQUE DEPARTMENT CONTACT LIST OFFICE HOME CELL City Manager, Michael C. VanMilligen 589 -4110 556 -7388 590 -1659 556 -7466 Assistant City Manager, Cindy Steinhauser 589 -4110 582 -6377 599 -2767 Leisure Services Manager, Marie Ware 589 -4263 564 -7566 or Park Division Manager, Robert Fritsch 589 -4263 543 -1732 or Recreation Division Mgr., Pat Prevenas 589 -4263 556 -2058 Public Works Director, Don Vogt 589 -4250 588 -4494 599 -1581 or Street Maint. Sup., John Klostermann 589 -4250 588 -2823 590 -4981 Police Chief, Mark Dalsing 589 -4411 599 -4411 or Assistant Chief, Terry Tobin 589 -4444 588 -3371 599 -4444 or On -duty Shift Commander 589 -4425 Fire Chief, E. Daniel Brown (521) 589 -4160 543 -4389 543 -6521 Em. Management Coordinator, Tom Berger 589 -1720 543 -1704 543 -4170 Public Information Officer, Randy Gehl 589 -4151 583 -4095 599 -2448 City Engineer, Gus Psihoyos 589 -4270 582 -7666 599 -3989 or Assistant City Engineer, Bob Schiesl 589 -4275 588 -4588 599 -4523 American Trust Plaza As -Built Elevations Lower walk/ramp at river's edge Start of lower walk/ramp handrail Top of cascading steps Center of main plaza Floodwall gate sill Mean Sea Level Elevation MSL Elev. 597 MSL Elev. 597.5 MSL Elev. 605 MSL Elev. 605.5 MSL Elev. 606.4 Mean Sea Level Elevations Conversion Formulas L &D 11 Tailwater River Stage Gauge Reading 8.8 9.3 16.8 17.3 18.2 Train Bridge River Stage Gauge Reading 11.5 12.0 19.5 20.0 20.9 L &D 11 Tailwater River Stage Gauge Reading: MSL Elev. = 588.2 + L &D 11 Tailwater River Gauge Reading A "0.00" Tailwater River Gauge Reading at L &D 11 Equals a 588.2 MSL Elevation Train Bridge River Stage Gauge Reading: MSL Elev. = 585.5 + Train Bridge River Gauge Reading A "0.00" River Gauge Reading at the Train Bridge Equals a 585.5 MSL Elevation In summary, this means that the river gauges at both the L &D 11 and the Train Bridge differ by 2.7 feet. However, using the above conversion formula, both river gauges correlate to the same MSL elevation. Dubuque, Iowa Ice Harbor Pump Station Reference Elevations (6125/02) Stage Elevation 33 618.5 Top of Floodwall 32.5 618 32 617.5 31.5 617 31 616.5 30.5 616 30 615.5 29.5 615 29 614.5 28.5 614 28 613.5 27.5 613 27 612.5 26.5 612 26 611.5 25.5 611 25 610.5 24.5 610 24 609.5 23.5 609 23 608.8 22.5 608 Floor of Electrical Control Room 22 607.5 21.5 607 21 606.5 20.5 606 20 605.5 19.5 605 19 604.5 18.5 604 18 603.5 Water Over Public Walkways 17.5 603 17 602.5 16.5 602 Close Flood Gates 16 601.5 15.5 601 15 600.5 14.5 600 14 599.5 13.5 599 Drawdown Level to satisfy 100 Year Storm criteria 13 598.5 12.5 598 Lower drawdown level when gates closed 12 597.5 11.5 597 11 596.5 10.5 596 Approximate minimum submergence 10 595.5 Desired lowest drawdown level 9.5 595 9 594.5 8.5 594 8 593.5 7.5 593 7 592.5 6.5 592 6 591.5 5.5 591 5 590.5 Approximate suction bell inlet 4.5 590 4 589.5 Bottom inside of pump chamber The river stages and elevations in this chart also apply to the train bridge river stage gauge.