<p><strong>VOLUME 4 OF 4 </strong></p><p><strong>YORK COUNTY, MAINE </strong></p><p><strong>(ALL JURISDICTIONS) </strong></p><p>COMMUNITY NAME </p><p>ACTON, TOWN OF </p><p>NUMBER </p><p>230190 230191 230192 230144 230145 230146 230147 230148 230149 230150 230151 230170 230171 230193 230194 230152 230195 230196 230197 </p><p></p><ul style="display: flex;"><li style="flex:1">COMMUNITY NAME </li><li style="flex:1">NUMBER </li></ul><p></p><p></p><ul style="display: flex;"><li style="flex:1">OGUNQUIT, TOWN OF </li><li style="flex:1">230632 </li></ul><p></p><ul style="display: flex;"><li style="flex:1">ALFRED, TOWN OF </li><li style="flex:1">OLD ORCHARD BEACH, TOWN OF&nbsp;230153 </li></ul><p>ARUNDEL, TOWN Of BERWICK, TOWN OF BIDDEFORD, CITY OF BUXTON, TOWN OF CORNISH, TOWN OF DAYTON, TOWN OF ELIOT, TOWN OF <br>PARSONSFIELD, TOWN OF SACO, CITY OF <br>230154 230155 230156 230198 230157 230199 230158 230159 <br>SANFORD, CITY OF SHAPLEIGH, TOWN OF SOUTH BERWICK, TOWN OF WATERBORO, TOWN OF WELLS, TOWN OF </p><ul style="display: flex;"><li style="flex:1">HOLLIS, TOWN OF </li><li style="flex:1">YORK, TOWN OF </li></ul><p>KENNEBUNK, TOWN OF KENNEBUNKPORT, TOWN OF KITTERY, TOWN OF LEBANON, TOWN OF LIMERICK, TOWN OF LIMINGTON, TOWN OF LYMAN, TOWN OF NEWFIELD, TOWN OF NORTH BERWICK, TOWN OF </p><p><strong>EFFECTIVE: </strong></p><p>FLOOD INSURANCE STUDY NUMBER 23005CV004A </p><p>Version Number 2.3.2.1 </p><p><strong>TABLE OF CONTENTS </strong></p><p><strong>Volume 1 </strong></p><p>Page </p><p></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 1.0 – INTRODUCTION </strong></li><li style="flex:1"><strong>1</strong></li></ul><p></p><p>122<br>20 <br>1.1 1.2 1.3 1.4 <br>The National Flood Insurance Program Purpose of this Flood Insurance Study Report Jurisdictions Included in the Flood Insurance Study Project Considerations for using this Flood Insurance Study Report </p><p></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 2.0 – FLOODPLAIN MANAGEMENT APPLICATIONS </strong></li><li style="flex:1"><strong>31 </strong></li></ul><p></p><p>31 43 44 44 45 45 46 47 48 <br>2.1 2.2 2.3 2.4 2.5 <br>Floodplain Boundaries Floodways Base Flood Elevations Non-Encroachment Zones Coastal Flood Hazard Areas 2.5.1 Water&nbsp;Elevations and the Effects of Waves 2.5.2 Floodplain&nbsp;Boundaries and BFEs for Coastal Areas 2.5.3 Coastal&nbsp;High Hazard Areas 2.5.4 Limit&nbsp;of Moderate Wave Action </p><p></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 3.0 – INSURANCE APPLICATIONS </strong></li><li style="flex:1"><strong>49 </strong></li></ul><p></p><p>49 51 <br>3.1 3.2 <br>National Flood Insurance Program Insurance Zones Coastal Barrier Resources System </p><p></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 4.0 – AREA STUDIED </strong></li><li style="flex:1"><strong>51 </strong></li></ul><p></p><p>51 52 54 57 <br>4.1 4.2 4.3 4.4 <br>Basin Description Principal Flood Problems Non-Levee Flood Protection Measures Levees </p><p></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 5.0 – ENGINEERING METHODS </strong></li><li style="flex:1"><strong>58 </strong></li></ul><p></p><p>58 78 <br>106 110 111 111 112 123 <br>5.1 5.2 5.3 <br>Hydrologic Analyses Hydraulic Analyses Coastal Analyses 5.3.1 Total&nbsp;Stillwater Elevations 5.3.2 Waves 5.3.3 Coastal&nbsp;Erosion 5.3.4 Wave&nbsp;Hazard Analyses </p><ul style="display: flex;"><li style="flex:1">Alluvial Fan Analyses </li><li style="flex:1">5.4 </li></ul><p></p><p>i</p><p><strong>TABLE OF CONTENTS - continued </strong></p><p><strong>Volume 1 - continued </strong></p><p>Figures <br>Page </p><p>Figure 1: FIRM Index Figure 2: FIRM Notes to Users <br>23 24 </p><ul style="display: flex;"><li style="flex:1">Figure 3: Map Legend for FIRM </li><li style="flex:1">27 </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Figure 4: Floodway Schematic </li><li style="flex:1">43 </li></ul><p>Figure 5: Wave Runup Transect Schematic Figure 6: Coastal Transect Schematic <br>46 48 <br>Figure 7: Frequency Discharge-Drainage Area Curves Figure 8: 1% Annual Chance Total Stillwater Elevations for Coastal Areas Figure 9: Transect Location Map <br>76 <br>110 121 </p><p>Tables <br>Page </p><p></p><ul style="display: flex;"><li style="flex:1">Table 1: Listing of NFIP Jurisdictions </li><li style="flex:1">2</li></ul><p>33 50 51 52 <br>Table 2: Flooding Sources Included in this FIS Report Table 3: Flood Zone Designations by Community Table 4: Coastal Barrier Resources System Information Table 5: Basin Characteristics </p><ul style="display: flex;"><li style="flex:1">Table 6: Principal Flood Problems </li><li style="flex:1">52 </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Table 7: Historic Flooding Elevations </li><li style="flex:1">54 </li></ul><p>Table 8: Non-Levee Flood Protection Measures Table 9: Levees <br>54 57 </p><ul style="display: flex;"><li style="flex:1">Table 10: Summary of Discharges </li><li style="flex:1">64 </li></ul><p>Table 11: Summary of Non-Coastal Stillwater Elevations Table 12: Stream Gage Information used to Determine Discharges Table 13: Summary of Hydrologic and Hydraulic Analyses Table 14: Roughness Coefficients Table 15: Summary of Coastal Analyses Table 16: Tide Gage Analysis Specifics Table 17: Coastal Transect Parameters Table 18: Summary of Alluvial Fan Analyses Table 19: Results of Alluvial Fan Analyses <br>77 78 89 <br>105 107 111 113 123 123 </p><p><strong>Volume 2 </strong></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 6.0 – MAPPING METHODS </strong></li><li style="flex:1"><strong>124 </strong></li></ul><p></p><p>124 125 126 190 <br>6.1 6.2 6.3 6.4 <br>Vertical and Horizontal Control Base Map Floodplain and Floodway Delineation Coastal Flood Hazard Mapping </p><p>ii </p><p><strong>TABLE OF CONTENTS - continued </strong></p><p><strong>Volume 2 - continued </strong></p><p></p><ul style="display: flex;"><li style="flex:1">6.5 </li><li style="flex:1">FIRM Revisions </li><li style="flex:1">200 </li></ul><p>200 200 201 202 202 202 <br>6.5.1 Letters&nbsp;of Map Amendment 6.5.2 Letters&nbsp;of Map Revision Based on Fill 6.5.3 Letters&nbsp;of Map Revision 6.5.4 Physical&nbsp;Map Revisions 6.5.5 Contracted&nbsp;Restudies 6.5.6 Community&nbsp;Map History </p><p></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 7.0 – CONTRACTED STUDIES AND COMMUNITY COORDINATION </strong></li><li style="flex:1"><strong>204 </strong></li></ul><p></p><p>204 213 <br>7.1 7.2 <br>Contracted Studies Community Meetings </p><p></p><ul style="display: flex;"><li style="flex:1"><strong>SECTION 8.0 – ADDITIONAL INFORMATION </strong></li><li style="flex:1"><strong>217 </strong></li></ul><p></p><ul style="display: flex;"><li style="flex:1"><strong>219 </strong></li><li style="flex:1"><strong>SECTION 9.0 – BIBLIOGRAPHY AND REFERENCES </strong></li></ul><p></p><p>Tables <br>Page </p><p>Table 20: Countywide Vertical Datum Conversion Table 21: Stream-Based Vertical Datum Conversion Table 22: Base Map Sources Table 23: Summary of Topographic Elevation Data used in Mapping Table 24: Floodway Data <br>124 125 126 127 128 </p><p>190 </p><p>Table 25: Flood Hazard and Non-Encroachment Data for Selected Streams Table 26: Summary of Coastal Transect Mapping Considerations Table 27: Incorporated Letters of Map Change Table 28: Community Map History Table 29: Summary of Contracted Studies Included in this FIS Report Table 30: Community Meetings Table 31: Map Repositories Table 32: Additional Information Table 33: Bibliography and References <br>187 191 201 203 205 214 217 219 220 </p><p>iii </p><p><strong>TABLE OF CONTENTS - continued </strong></p><p><strong>Volume 3 – continued </strong></p><p>Exhibits <br>Flood Profiles <br>Batson River <br>Panel <br>01-02 P <br>Blacksmith Brook Bridges Swamp <br>03 P 04 P <br>Cape Neddick River Chickering Creek Cider Hill Creek <br>05-06 P <br>07 P <br>08-09 P </p><ul style="display: flex;"><li style="flex:1">10 P </li><li style="flex:1">Coffin Brook </li></ul><p>Coffin Brook Tributary 1 Cooks Brook Day Brook <br>11-12 P 13-16 P <br>17 P </p><ul style="display: flex;"><li style="flex:1">Depot Brook </li><li style="flex:1">18 P </li></ul><p>Dolly Gordon Brook Driscoll Brook Ferguson Brook <br>19-20 P 21-22 P 23-24 P </p><ul style="display: flex;"><li style="flex:1">25 P </li><li style="flex:1">Fuller Brook </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Goodall Brook </li><li style="flex:1">26 P </li></ul><p>Goosefare Brook Great Works River Green Brook <br>27-29 P 30-41 P 42-43 P </p><ul style="display: flex;"><li style="flex:1">44 P </li><li style="flex:1">Hill Creek </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Josias River </li><li style="flex:1">45 P </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Keay Brook </li><li style="flex:1">46-47 P </li></ul><p>48-53 P 54-66 P 67-70 P <br>71 P <br>Kennebunk River Little Ossipee River Little River (Town of Berwick) Little River (Town of Cornish) Little River (Town of Kennebunk) Little River <br>72 P <br>73-74 P 75-78 P <br>79 P <br>Littlefield River Merriland River (Lower Reach) Merriland River (Upper Reach) Middle Branch Mousam River Mill Brook <br>80 P 81 P 82 P </p><ul style="display: flex;"><li style="flex:1">Moors Brook </li><li style="flex:1">83 P </li></ul><p></p><p>iv </p><p><strong>TABLE OF CONTENTS - continued </strong></p><p><strong>Volume 4 </strong></p><p>Exhibits <br>Flood Profiles <br>Mousam River (City of Sanford) Mousam River (Lower Reach) <br>Panel <br>84-89 P 90-91 P 92-95 P <br>96 P <br>Mousam River (Town of Kennebunk) Mulloy Brook Ogunquit River Ogunquit River Tributary Ossipee River Saco River Saco River - Left Channel Salmon Falls River <br>97-99 P <br>100 P <br>101-106 P 107-124 P <br>125 P <br>126-141 P </p><ul style="display: flex;"><li style="flex:1">142 P </li><li style="flex:1">Sawyer Brook </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Smith Brook </li><li style="flex:1">143 P </li></ul><p>South Branch of West Brook Spinney Creek <br>144 P 145 P </p><ul style="display: flex;"><li style="flex:1">Spruce Creek </li><li style="flex:1">146 P </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Stevens Brook </li><li style="flex:1">147 P </li></ul><p></p><ul style="display: flex;"><li style="flex:1">Thatcher Brook </li><li style="flex:1">148 P </li></ul><p>Tributary 1 to Cape Neddick River Tributary 1 to Green Brook Tributary to Middle Branch Mousam River Unnamed Tributary to Stony Brook Webhannet River <br>149 P 150 P 151 P 152 P 153 P </p><ul style="display: flex;"><li style="flex:1">West Brook </li><li style="flex:1">154 P </li></ul><p>Worster Brook Worster Brook Tributary 3 <br>155-157 P 158-159 P </p><p><strong>Published Separately </strong></p><p>Flood Insurance Rate Map (FIRM) </p><p>v</p><p></p><ul style="display: flex;"><li style="flex:1">84P </li><li style="flex:1">85P </li><li style="flex:1">86P </li><li style="flex:1">87P </li></ul><p>88P 89P </p><p>175 170 165 160 155 150 145 140 135 130 <br>175 170 165 160 155 150 145 140 </p><p>D</p><p>LEGEND </p><p>0.2% ANNUAL CHANCE FLOOD* 1% ANNUAL CHANCE FLOOD 2% ANNUAL CHANCE FLOOD* 10% ANNUAL CHANCE FLOOD* STREAM BED </p><ul style="display: flex;"><li style="flex:1">A</li><li style="flex:1">B</li><li style="flex:1">C</li></ul><p>CROSS SECTION LOCATION </p><p></p><ul style="display: flex;"><li style="flex:1">0</li><li style="flex:1">500 </li><li style="flex:1">1000 </li><li style="flex:1">1500 </li><li style="flex:1">2000 </li><li style="flex:1">2500 </li><li style="flex:1">3000 </li><li style="flex:1">3500 </li><li style="flex:1">4000 </li><li style="flex:1">4500 </li><li style="flex:1">5000 </li><li style="flex:1">5500 </li><li style="flex:1">6000 </li></ul><p></p><p>STREAM DISTANCE IN FEET ABOVE TOWN OF KENNEBUNK/CITY OF SANFORD CORPORATE LIMITS </p><p>80P </p><p>* DATA NOT AVAILABLE </p><p>84P </p><p>81P </p><p>90P </p><p>195 190 185 180 175 170 165 160 155 150 <br>195 190 185 180 175 170 165 160 <br>LEGEND </p><p>0.2% ANNUAL CHANCE FLOOD* 1% ANNUAL CHANCE FLOOD 2% ANNUAL CHANCE FLOOD* 10% ANNUAL CHANCE FLOOD* STREAM BED <br>F<br>CROSS SECTION LOCATION </p><p></p><ul style="display: flex;"><li style="flex:1">6500 </li><li style="flex:1">7000 </li><li style="flex:1">7500 </li><li style="flex:1">8000 </li><li style="flex:1">8500 </li><li style="flex:1">9000 </li><li style="flex:1">9500 </li><li style="flex:1">10000 </li><li style="flex:1">10500 </li><li style="flex:1">11000 </li><li style="flex:1">11500 </li><li style="flex:1">12000 </li><li style="flex:1">12500 </li><li style="flex:1">13000 </li></ul><p></p><p>STREAM DISTANCE IN FEET ABOVE TOWN OF KENNEBUNK/CITY OF SANFORD CORPORATE LIMITS </p><p>81P </p><p>* DATA NOT AVAILABLE </p><p>82P </p><p>85P </p><p>91P </p><p>92P <br>93P <br>94P 95P </p><p>220 210 200 190 180 170 160 150 140 130 <br>340 330 320 310 300 290 280 270 <br>220 210 200 190 180 170 160 150 140 <br>280 270 260 250 240 230 220 210 200 <br>280 270 260 250 240 230 220 210 200 100 <br>340 330 320 310 300 290 280 270 260 250 <br>CULVERT <br>LEGEND </p><p>0.2% ANNUAL CHANCE FLOOD 1% ANNUAL CHANCE FLOOD 2% ANNUAL CHANCE FLOOD 10% ANNUAL CHANCE FLOOD STREAM BED </p><ul style="display: flex;"><li style="flex:1">F</li><li style="flex:1">K</li></ul><p></p><ul style="display: flex;"><li style="flex:1">A</li><li style="flex:1">B</li><li style="flex:1">C</li><li style="flex:1">D</li><li style="flex:1">E</li><li style="flex:1">G</li><li style="flex:1">H</li><li style="flex:1">I</li><li style="flex:1">J</li></ul><p>CROSS SECTION LOCATION </p><p></p><ul style="display: flex;"><li style="flex:1">0</li><li style="flex:1">1000 </li><li style="flex:1">2000 </li><li style="flex:1">3000 </li><li style="flex:1">3000 </li><li style="flex:1">4000 </li><li style="flex:1">5000 </li><li style="flex:1">6000 </li><li style="flex:1">7000 </li></ul><p>6000 </p><p>STREAM DISTANCE IN FEET ABOVE WORSTER BROOK </p><p>9</p><p>9</p><p>0</p><p>1P </p><p>P</p><p>96P </p><p>01P </p><p></p><ul style="display: flex;"><li style="flex:1">97P </li><li style="flex:1">98P </li></ul><p>99P </p><p>95P </p><p>94P </p><p>100P </p>