Minutes of the Flood Control Advisory Board – October 24, 2018 Page 1 of 15 5) ACTION ITEM - APPOINTMENT to the FCAB STANDING COMMITTEES
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Flood Control District of Maricopa County Flood Control Advisory Board Meeting Minutes October 24, 2018 Board Members Present: Gregg Monger, Chairman; Richard Schaner; Bob Larchick; Hemant Patel; Ray Dovalina Staff Members Present: Michael Fulton, Director; Angie Flick; Tanee Morris 1) CALL TO ORDER Chairman Monger called the meeting of the Flood Control Advisory Board (FCAB) to order at 1:59 p.m. on October 24, 2018. 2) PLEDGE OF ALLEGIANCE The Pledge of Allegiance was recited. 3) APPROVE THE MINUTES OF AUGUST 22, 2018 ACTION: It was moved by Mr. Justice and seconded by Mr. Larchick to approve the minutes as submitted. The motion carried unanimously, and the minutes were approved. 4) ACTION ITEM - ELECTION OF OFFICERS Presented by Mr. Gregg Monger The objective is to determine whether the advisory board should elect the officers nominated: Mr. Hemant Patel, Chairman; Mr. DeWayne Justice, Vice Chairman; and Mr. Bob Larchick, Secretary, for the period of November 2018 to October 2019 based on the slate recommended by the staff or open to the nominations for officers. ACTION: Mr. Justice moved to elect. Mr. Dovalina seconded the motion. The motion carried unanimously. Minutes of the Flood Control Advisory Board – October 24, 2018 Page 1 of 15 5) ACTION ITEM - APPOINTMENT TO THE FCAB STANDING COMMITTEES Presented by Mr. Gregg Monger This is essentially the advisory board appointment of the members to the FCAB committees: Legislative Committee, Mr. Bob Larchick and Mr. Gregg Monger; Policy Committee, Mr. Hemant Patel and Mr. Ray Dovalina; Program and Budget Committee, Mr. Bob Larchick, Mr. Hemant Patel, and Mr. DeWayne Justice; and Public Information Committee, Mr. Gregg Monger and Mr. Hemant Patel. ACTION: Mr. Schaner moved that they proceed in accordance with staff recommendations for the positions as listed. Mr. Patel seconded the motion. The motion carried unanimously. 6) ACTION ITEM - RAWHIDE WASH FLOOD HAZARD MITIGATION INTERGOVERNMENTAL AGREEMENT 2018A013 Presented by Ms. Bobbie Ohler, Project Manager This IGA includes design, and relocations for the project. Past authorizations include Resolution 2018R005, which authorized IGAs, runway acquisition, and CIP funding. The project was also submitted for the CIP Program for FY 2019 and recommended by both cities, Phoenix and Scottsdale. The project was first identified in the Pinnacle Peak West Area Drainage Master Study, which was completed in 2016. The Rawhide Wash is an active alluvial fan and is the largest hazard study area. The 100-year flow is 9,014 CFS. There are over 800 homes in the current flood plain of Rawhide Wash. The entire project will be within Scottsdale but will affect the City of Phoenix. The project will remove approximately 1,930 acres of land from the floodplain, about 80 percent from Phoenix and 20 percent from Scottsdale. The project will also take about 800 buildings out of the floodplain and will help avoid breakouts and having to build redundant infrastructure in the City of Phoenix. The undeveloped land to the west is all state land, owned by the Arizona State Land Department. There are floodwalls existing that do provide quite a bit of protection, but they are not FEMA certified. There is currently a study being completed that includes a technical, hydraulic, and structural analysis to see what needs to be done to the walls to certify them with FEMA and thus remove the floodplain. Minutes of the Flood Control Advisory Board – October 24, 2018 Page 2 of 15 New walls will also need to be constructed to keep the wash to a smaller area in Phoenix. A 100-year flow will be contained within the flood wall levee system, and access will be provided for people and wildlife. Interior drainage will be addressed. The project will be designed to FEMA standards so a CLOMR can be done and eliminate that floodplain. The IGA includes the design, rights of way acquisition, and utility relocation. The project partners are: The Flood Control District, City of Phoenix, and City of Scottsdale. The cost share is 50 percent, 40 percent, and 10 percent. The District is going to take the lead for all of the IGA elements. In the future, the project partners intend to enter into an IGA construction, construction management, and operation maintenance of the project. Photos of the existing floodwalls were shown. Those existing floodwalls vary. There are over 12,000 feet of existing floodwalls. Some of those are not tall enough and will need to be raised to meet freeboard requirements. Some existing floodwalls need additional erosion protection, and some may require beefing up of the stemwalls to ensure they are adequately strong. There is a study being done that identifies what needs to be done to all existing floodwalls. It is likely some of them will need to be removed and replaced. Aesthetics will be looked at so landowners and HOAs all approve. New walls will replace existing walls that cannot be repaired. The character and grade of the wash will be maintained. It will not be channelized, walls will just be put up. Access for people and wildlife will be provided, and a future trail system will be allowed for. The estimated cost for this IGA will be about $2 million with design, rights of way, and utility relocations. There should not be a lot of utility relocations, but that is just an estimate. There is a planning estimate for the future IGA of about $15.2 million to construct. The benefits are almost 2,000 acres of floodplain reduction within the project. Existing residences will be taken out of harm's way, and flood risk and potential damages will be reduced. In the future the flow will be delivered to one point west of Scottsdale Road, so it will be easier for development in Phoenix to occur. With a future project even more acreage will be eliminated from the floodplain. This will help with the development in the area by reducing building costs and flood insurance not being mandatory in those areas. STAFF RECOMMENDS THE FOLLOWING ACTION: The Flood Control Advisory Board endorse and recommend the Board of Directors to approve IGA 2018A013. Minutes of the Flood Control Advisory Board – October 24, 2018 Page 3 of 15 Mr. Justice asked if that wash is going to create a spread out of water at Pinnacle Peak Road. Ms. Ohler responded that there is a box culvert and channel, and that the water would spread out at that point. The city is even starting a DCR for a future project to deal with it from that point that is not part of this project. Mr. Dovalina stated that from the City of Phoenix they appreciate all the efforts that the Flood Control District has done to this point with all previously completed work and stated that this project is not only protecting existing houses and structures, but also future development that has a lot of potential for not only the City of Phoenix but also the state. ACTION: Mr. Patel made a motion to approve the Rawhide IGA. Mr. Dovalina seconded the motion. The motion carried unanimously. 7) ACTION ITEM - CAPITAL IMPROVEMENT PROGRAM PROJECT PRIORITIZATION (CIPPP) FY 2019/2020 (Note: Mr. Monger noted that the information sheet showed this item number was an information only item, but it is for action.) Presented by Mr. Patrick Schafer, Civil/Structures Branch Manager The staff recommends that the Flood Control Advisory Board endorses the Project Evaluation Committee's results for the Fiscal Year '19/20 Capital Improvement Program Prioritization Procedure of identifying and prioritizing potential five-year capital improvement program projects. There was a meeting where the draft results were presented to the Flood Control Advisory Board Program and Budget Committee. The committee endorsed the draft results at that time. Projects were requested from agencies in May. The agencies had until mid-July to submit those projects. In August, the Evaluation Committee went through the requested projects in detail, evaluated them and ranked them. In September the draft recommendations were sent to the agencies. Today the results are presented as an action item. Later this year and early next year, budgeting and programing projects will be done for the upcoming five- year CIP. At this stage we are evaluating projects and recommending that certain projects be incorporated into a future year CIP program. Projects will be recommended through the resolution process and intergovernmental agreements. Minutes of the Flood Control Advisory Board – October 24, 2018 Page 4 of 15 As the project develops, you will see them again and endorse those. Right now we are just looking to add potential projects to the Capital Improvement Program. For fiscal year 2020 we have received three submittals. The submitting agencies were the City of Scottsdale, the Town of Queen Creek, and the Town of Gilbert. The total estimated cost of all three projects is $49 million. The total proposed district cost, as submitted, was $24.6 million. The City of Scottsdale submitted the Reata Wash Flood Control Improvement Project. The estimated total cost is $43 million. The Town of Queen Creek submitted a retention basin project at a total estimated cost of $5 million. The Town of Gilbert submitted the Hunt Highway Protection Project, with an estimated total cost of $1.25 million. The Reata Wash Flood Control Improvement Project submitted by the City of Scottsdale is located in North Scottsdale. The objective is to replace the expansive Reata Wash active alluvial fan FEMA floodplain with a much smaller rivering floodplain. It is bounded to the north by Pinnacle Peak Road and State Road 101 to the south. The contributing watershed is 8 square miles at the apex of the alluvial fan.