Knowledge (XXG)

Flood embankment

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This is an animation showing a flood event overwhelming neighbouring properties and the added construction of a flood embankment and flood warning and protection status.
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Modern improvements to this design include constructing an internal central core made from impermeable substance like clay or
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Most flood embankments are between 1 metre and 3 metres high. A 5-metre-high (16 ft) flood embankment is rare.
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A flood embankment of 2.5 metres high requires an outreach of 15 metres, which makes it unsuitable in some areas.
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To prevent seepage through the embankment a central core is added to acquire stability and integrity.
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The main problem is the space required to construct and maintain such a structure.
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When the structure has moved of its axis causing an exposed area to be washed away
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When water infiltrates under the structure. This is caused by burrowing animals
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When water finds its way under the structure and collects on the other side.
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When the structure has moved sideways exposing the foundation to erosion
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If any weakness is detected under strong water pressure, the compromise
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is traditionally an earth wall used to shore up flood waters.
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A central core is normally designed in to prevent piping
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When not by design, the crest can wash away and cause a
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Clifton, Rawcliffe, Poppleton and Leeman ings in York
261:as well as allowing gaps in between the structures 46:. Unsourced material may be challenged and removed. 181:some flood embankments are designed to overtop 8: 150: 139:Some authorities call man-made structures 156:Animation of types of floodwall failures 106:Learn how and when to remove this message 338: 320: 316: 305: 285: 265: 245: 228: 208: 191: 406: 281:like dogs, beavers,badgers and otters 7: 186:clifton,rawcliffe and poppleton ings 44:adding citations to reliable sources 448:evidence.environment-agency.gov.uk 419:evidence.environment-agency.gov.uk 14: 20: 31:needs additional citations for 1: 494: 395: 359: 343: 325: 310: 290: 270: 250: 233: 213: 196: 173: 132:, some even use metal 394: 358: 342: 324: 309: 289: 269: 249: 232: 224:is soon exacerbated 212: 195: 172: 368:River Gowan, Cumbria 40:improve this article 219:Structural failure 152: 396: 360: 344: 326: 311: 291: 271: 251: 234: 214: 197: 174: 151: 55:"Flood embankment" 392: 348: 347: 315: 314: 170: 116: 115: 108: 90: 485: 463: 462: 460: 459: 450:. Archived from 440: 434: 433: 431: 430: 421:. Archived from 411: 393: 317: 171: 153: 120:flood embankment 111: 104: 100: 97: 91: 89: 48: 24: 16: 493: 492: 488: 487: 486: 484: 483: 482: 468: 467: 466: 457: 455: 442: 441: 437: 428: 426: 413: 412: 408: 404: 382: 380: 353: 160: 149: 112: 101: 95: 92: 49: 47: 37: 25: 12: 11: 5: 491: 489: 481: 480: 470: 469: 465: 464: 435: 405: 403: 400: 379: 376: 352: 349: 346: 345: 336: 327: 313: 312: 303: 293: 292: 283: 273: 272: 263: 253: 252: 243: 236: 235: 226: 216: 215: 206: 199: 198: 189: 176: 175: 157: 148: 145: 114: 113: 28: 26: 19: 13: 10: 9: 6: 4: 3: 2: 490: 479: 478:Flood control 476: 475: 473: 454:on 2016-06-24 453: 449: 445: 439: 436: 425:on 2016-06-24 424: 420: 416: 410: 407: 401: 399: 377: 375: 374: 370: 369: 365: 364: 357: 350: 341: 337: 335: 332: 328: 323: 319: 318: 308: 304: 302: 299: 295: 294: 288: 284: 282: 279: 275: 274: 268: 264: 262: 259: 255: 254: 248: 244: 242: 238: 237: 231: 227: 225: 222: 218: 217: 211: 207: 205: 201: 200: 194: 190: 188: 187: 182: 178: 177: 158: 155: 154: 146: 144: 142: 137: 135: 131: 126: 123: 121: 110: 107: 99: 88: 85: 81: 78: 74: 71: 67: 64: 60: 57: –  56: 52: 51:Find sources: 45: 41: 35: 34: 29:This article 27: 23: 18: 17: 456:. Retrieved 452:the original 447: 438: 427:. Retrieved 423:the original 418: 409: 397: 371: 366: 361: 333: 330: 300: 297: 280: 277: 260: 257: 240: 223: 220: 183: 180: 179:Overtopping 138: 127: 124: 119: 117: 102: 93: 83: 76: 69: 62: 50: 38:Please help 33:verification 30: 444:"Chapter 9" 415:"Chapter 9" 373:River Trent 458:2016-05-01 429:2016-05-01 402:References 66:newspapers 378:Animation 239:Rotation 96:June 2016 472:Category 351:Examples 276:Seepage 256:Sliding 184:example 147:Problems 130:concrete 296:Piping 134:pilings 80:scholar 204:breach 141:levees 82:  75:  68:  61:  53:  87:JSTOR 73:books 59:news 42:by 474:: 446:. 417:. 143:. 136:. 118:A 461:. 432:. 109:) 103:( 98:) 94:( 84:· 77:· 70:· 63:· 36:.

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"Flood embankment"
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Learn how and when to remove this message
concrete
pilings
levees
clifton,rawcliffe and poppleton ings

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Clifton, Rawcliffe, Poppleton and Leeman ings in York
River Gowan, Cumbria
River Trent
"Chapter 9"

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