Discovery Report - Ohio Department of Natural Resources

IV. Risk MAP NeedsThe results of the data collection and analysis were thoroughly discussed at the DiscoveryMeeting. The following sections include issues and situations that exist in the Upper GreatMiami Watershed communities that can be considered Risk MAP Needs, to be addressedwith Risk MAP projects. Details and background on all issues can be found in the interviewnotes, meeting notes, and other files included in the appendices.i. Floodplain StudiesA number of the counties located in the Upper Great Miami Watershed have undergonerecent countywide DFIRM projects; however, not all of these projects included new ZoneA studies.As shown on the Final Discovery Map, recent LiDAR and imagery data meeting FEMA’sGuidelines and Specifications have been developed for the entire Discovery Project Area.As shown on the Final Discovery Map, numerous study reaches have been classified as“INVALID” during the CNMS process.At the Discovery Meeting, several areas were identified by community officials as needingan updated detailed or approximate study.Based on the results of the Stakeholder Coordination, Data Analysis and DiscoveryMeeting, proposed Study Areas in the Upper Great Miami have been identified in Table 6.Table 6. Mapping NeedsSTUDY LENGTHFLOODING SOURCESTUDY TYPE(miles)Bokengehalas Creek 13.7 DETAILEDBlue Jacket Creek 7.9 DETAILEDGreat Miami River 27.9 DETAILEDGreat Miami River 19.2 APPROXIMATEGreenville Creek 6.0 APPROXIMATEHebble Creek 2.8 DETAILEDHulls Creek 4.0 DETAILEDIsland No. 3 Tributary 8.0 DETAILEDLeatherwood Creek 4.6 DETAILEDLilly Creek 1.2 DETAILEDLoramie Creek 24.5 DETAILEDMad River 17.7 DETAILEDMad River 10.5 UNSTUDIED17Upper Great Miami Watershed Discovery Report, June 2011