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Landlocked Basins <br /> The HHPLS identified several landlocked subwatershed units in the city (see Figure 1). The <br /> Local Plan must identify any significant non-outletting areas; discuss and incorporate strategies <br /> to minimize new volumes and address any flooding issues. <br /> Floodin�or Modeled High Water Locations <br /> The HHPLS identified three specific locations in Orono where there are known or modeled <br /> flooding issues (see Figure 1 and Table 2). The Local Plan must identify these and any other <br /> known flooding areas; evaluate the associated risks to public health, safety, and property; assess <br /> whether the risk of occasional flooding is acceptable; and set forth a plan to address the flooding <br /> issues. <br /> Table 2. Known or modeled floodin issues,Cit of Orono (source:HHPLS). <br /> Descri tion Modeled Event <br /> Fox Street 100- ear <br /> East Lon Lake 100- ear <br /> Private Drive South of HWY 6 100- ear <br /> Flow Velocity and Erosion <br /> The HHPLS identified three locations where the model indicates existing and future high pipe <br /> peak flow velocities may require erosion control measures or energy dissipaters at inlets and <br /> outlets (see Figure 1 and Table 3). The Local Plan must assess the need for erosion control at <br /> this location and any other locations where excessive velocities may be contributing to localized <br /> erosion. <br /> Table 3. Known or modeled eak i e flow velocities issues,City of Orono(source:HAPLS). <br /> Descri tion Modeled Event <br /> LLG16 Private Drive 100- ear <br /> LLC-48 Luce Line trail 100- ear <br /> LLG24 East Lon Lake 100- ear • <br /> Land Conservation <br /> Large areas of Orono have been identified as Key Conservation Areas (see Figure 2). These <br /> areas include the Long Lake Creek and Classen Creek corridors; key riparian wetlands to the <br /> lakes and streams in the city; and other wetland, tributary, and upland connections between those <br /> corridors and Lake Minnetonka. The Local Plan must identify these areas and the strategies the <br /> city will use to protect and conserve the hydrologic and ecologic values of these areas and other <br /> natural areas in the city. <br /> Operations and Maintenance: Previous Pro_iects <br /> The District has previously completed construction of a detention pond at the outlet into Long <br /> Lake downstream of County Road 6, and retains responsibility for inspecting, maintaining and <br /> dredging the pond. � <br />