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8.4 Review and Analyze Hydraulic and Hydrologic Conditions CITY OF SALINA REQUEST FOR CITY COMMISSION ACTION DATE 8/17/2009 TIME 4:00 P.M. AGENDA SECTION NO: ORIGINATING DEPARTMENT: APPROVED FOR AGENDA: 8 ITEM NO. Page 1 DEPARTMENT OF PUBLIC WORKS 4 BY: BY: Daniel Stack ITEM: Agreement with AMEC Earth and Environmental, Inc. (AMEC) to review and analyze hydraulic and hydrologic conditions related to the Federal Emergency Management Agency (FEMA) Digital Flood Insurance Rate Map (DFIRM) modernization and the Salina Flood Control Levee, Project No. 09- 2773. BACKGROUND: On June 29, 2009, the City sent a request for qualifications (RFQ) letter to ten engineering firms to help the City review FEMA's DFIRM modernization, evaluate existing hydraulic and hydrologic data associated with and/or impacting the levee system, and complete an initial assessment of the levee system to determine what information is available for certification and what additional analyses are required. Four firms submitted a proposal, and three firms were selected for interviews. Staff utilized selection criteria as outlined in the City of Salina Professional Services Selection Guidelines (dated February 23, 2007) to review the proposals. The consultant's qualifications and experience with FEMA and the United States Army Corps of Engineers were key items in staff's review of these proposals. From the interviews, AMEC clearly showed that they have the most experience and ability to perform the work. AMEC will perform work related to FEMA's DFIRM mapping and the Salina Flood Control Levee as part of Phase 1 to include the following tasks. . Review and analysis of existing documents and data including, but not limited to, the 1958 Corps of Engineers design memorandum, 1966 as built drawings and operations and maintenance manual, 1997 Corps of Engineers flood and drainage reconnaissance report, 2007 FEMA hydraulic analysis, 2007 Corps of Engineers levee survey information, and 2009 City of Salina levee survey information. . Review and analysis of existing precipitation and gage data (including historical precipitation events), storm water reports, and contour mapping. . Review FEMA data for interior drainage areas especially critical drainage area No. 2 and Wayne Avenue between Ohio and Quincy Streets. . Provide a written summary and public presentation of observations, conclusions, identification of alternatives and recommended courses of action. . Propose a scope of work for Phase II, which we expect at a minimum will consist of some hydraulic analyses recommended in Phase I. Another key component of AMEC's potential contract is to assist the City in responding to FEMA in regards to the DFIRM water surface elevations. On April 28, 2009, FEMA and the Kansas Department of Agriculture (Division of Water Resources) conducted a public meeting in Salina regarding the new DFIRM. The new map removed many parcels from the base flood area and added several parcels that had previously been within the base flood zone. Since the last flood map was issued in 1986, Salina has made more than 1,300 letters of map amendments (LOMA) removing parcels from the base flood zone. FEMA reviewed each LOMA and determined if the current LOMA would be honored or rejected. A list from FEMA revealed more than 600 LOMA had not yet been CITY OF SALINA REQUEST FOR CITY COMMISSION ACTION DATE 8/17/2009 TIME 4:00 P.M. AGENDA SECTION NO: ORIGINATING DEPARTMENT: APPROVED FOR AGENDA: 8 ITEM NO. 4 Page 2 BY: Daniel Stack processed. The City has provided FEMA with these addresses. FEMA will review these locations before issuing the public notice letter. FEMA anticipated issuing a notice of public comment to the City by July 31, 2009, but this has not yet occurred yet. The City will have 90 days to challenge the maps before they become official. AMEC will help us with this process as well. DEPARTMENT OF PUBLIC WORKS BY: The attached Agreement includes: scope of services for eleven (11) specific tasks to address the items defined above, terms and conditions of engineering services, responsibilities of the City of Salina, compensation and period of service. The total estimated fee for these services is $64,760. FISCAL NOTE: The funding for this Agreement was budgeted out of special sales tax funds in the 2009 Capital Improvements Program for Flood Control Levee Certification. CONFORMANCE WITH THE STRATEGIC PLAN: GOAL #3: The City will provide the highest quality of services consistent with governing body direction, available resources and staff commitment to quality. RECOMMENDED ACTION: City staff requests the City Commission authorize the mayor to sign the Agreement with AMEC Earth and Environmental, Inc. to review and analyze hydraulic and hydrologic conditions related to FEMA's DFIRM modernization and the Salina Flood Control Levee, Project No. 09-2773, in the amount of $64,760. Enclosures: Engineering Contract