Knowledge

Llyn Eigiau

Source 📝

149: 299: 25: 133: 307: 156: 389:, causing the loss of 16 lives. A new power station was built at Dolgarrog in 1925. Three short black and white silent films of the incident exist. A study of the dam today shows that the foundations were insufficient, and large lumps of unmixed cement can also be seen. The dam material that can be seen through existing holes is flaky and tends to break away easily. 448:
and thereafter becomes a narrow lane as it goes over the hills towards the lake. Along this lane there are some public footpaths signposted, with stiles to access them over the old dry-stone walls that run along parts of the lane.
381:. The original contractor pulled out of the construction, alleging corner-cutting, and indeed on 2 November 1925, following 26 inches (660 mm) of rain in just five days, the dam broke. The water flowed down to 432:
Although private vehicles are not permitted access to the lake itself, there is a carpark within walking distance, approx. half a mile from the dam and which is reached by road from the
397:
Today the lake covers an area of about 120 acres (0.49 km), and has a depth of about 32-foot (9.8 m). After the construction of the dam its area would have been twice this.
365:
In 1911 a dam ¾ mile long and 35-foot (11 m) high was built across part of its eastern side to supply water for the power station at
196: 527: 494: 148: 89: 61: 108: 532: 68: 537: 46: 75: 42: 57: 35: 459: 385:, also causing that to burst, and millions of gallons of water flowed down into the village of 378: 252: 228: 354: 333:
is thought to refer to the shoals of fish which once lived here. Early maps refer to it as
8: 82: 238: 445: 437: 412:, a small river which flows down Cwm Eigiau. The outflow from Llyn Eigiau is called 522: 417: 413: 382: 259: 502: 374: 266: 516: 211: 198: 349:, and certainly it is one of the few lakes in Wales to have its own natural 310:
A second breach was deliberately made in the dam to prevent a re-occurrence.
441: 421: 409: 405: 350: 342: 338: 245: 420:
before passing under Pont Newydd in Dolgarrog. This then flows into the
433: 401: 346: 239: 253: 386: 370: 366: 322: 318: 298: 177: 24: 373:
works. Materials for the dam were transported along the newly laid
132: 306: 181: 400:
Water is fed into Llyn Eigiau by a tunnel from the stream below
377:, which ran from Dolgarrog and utilized the route of the former 326: 404:, and another larger tunnel takes water from Llyn Eigiau to 302:
The breach in the dam, showing the gully cut by floodwater.
495:"Film: 'Nov. 2nd 1925. The Dolgarrog Disaster' (1925)" 49:. Unsourced material may be challenged and removed. 514: 369:, which in turn provided power for the adjacent 353:. The lake is surrounded by mountains including 189: 501:. he National Library of Wales. Archived from 341:exist in the lake (as they do in neighbouring 109:Learn how and when to remove this message 345:) after they were transferred here from 305: 297: 16:Reservoir in Snowdonia, Conwy, Wales, UK 470: 337:. It is thought that a small number of 515: 458: 408:. The main feeder of Llyn Eigiau is 47:adding citations to reliable sources 18: 155: 13: 528:Reservoirs in Conwy County Borough 14: 549: 154: 147: 137:from the summit of Clogwynyreryr 131: 23: 452: 34:needs additional citations for 487: 392: 1: 480: 317:is a lake on the edge of the 7: 10: 554: 444:. The road passes through 471:Roberts, Geraint (1985). 427: 288: 280: 276: 265: 251: 237: 227: 188: 173: 142: 130: 125: 464:The Lakes of North Wales 533:Reservoirs in Snowdonia 292:32 ft (9.8 m) 538:Dam failures in Europe 475:. Gwasg Carreg Gwalch. 360: 321:range of mountains in 311: 303: 284:120 acres (49 ha) 416:, and this flows via 379:Cedryn Quarry Tramway 309: 301: 505:on 22 February 2012. 499:Gathering the Jewels 466:. Whittet Books Ltd. 355:Pen Llithrig y Wrach 212:53.16889°N 3.91583°W 43:improve this article 208: /  473:The Lakes of Eryri 329:, Wales. The name 312: 304: 233:natural, reservoir 217:53.16889; -3.91583 446:Llanbedr-y-Cennin 296: 295: 119: 118: 111: 93: 545: 507: 506: 491: 476: 467: 418:Coedty reservoir 414:Afon Porth-llwyd 383:Coedty Reservoir 260:Afon Porth-llwyd 255: 254:Primary outflows 241: 223: 222: 220: 219: 218: 213: 209: 206: 205: 204: 201: 191: 158: 157: 151: 135: 123: 122: 114: 107: 103: 100: 94: 92: 51: 27: 19: 553: 552: 548: 547: 546: 544: 543: 542: 513: 512: 511: 510: 493: 492: 488: 483: 455: 430: 395: 363: 269: countries 240:Primary inflows 216: 214: 210: 207: 202: 199: 197: 195: 194: 169: 168: 167: 166: 165: 164: 163: 159: 138: 115: 104: 98: 95: 52: 50: 40: 28: 17: 12: 11: 5: 551: 541: 540: 535: 530: 525: 509: 508: 485: 484: 482: 479: 478: 477: 468: 454: 451: 429: 426: 394: 391: 375:Eigiau Tramway 362: 359: 294: 293: 290: 286: 285: 282: 278: 277: 274: 273: 272:United Kingdom 270: 263: 262: 257: 249: 248: 243: 235: 234: 231: 225: 224: 192: 186: 185: 175: 171: 170: 161: 160: 153: 152: 146: 145: 144: 143: 140: 139: 136: 128: 127: 117: 116: 31: 29: 22: 15: 9: 6: 4: 3: 2: 550: 539: 536: 534: 531: 529: 526: 524: 521: 520: 518: 504: 500: 496: 490: 486: 474: 469: 465: 461: 457: 456: 450: 447: 443: 439: 435: 425: 423: 419: 415: 411: 407: 403: 398: 390: 388: 384: 380: 376: 372: 368: 358: 356: 352: 348: 344: 340: 336: 332: 328: 324: 320: 316: 308: 300: 291: 287: 283: 279: 275: 271: 268: 264: 261: 258: 256: 250: 247: 244: 242: 236: 232: 230: 226: 221: 193: 187: 183: 179: 176: 172: 150: 141: 134: 129: 124: 121: 113: 110: 102: 91: 88: 84: 81: 77: 74: 70: 67: 63: 60: –  59: 58:"Llyn Eigiau" 55: 54:Find sources: 48: 44: 38: 37: 32:This article 30: 26: 21: 20: 503:the original 498: 489: 472: 463: 460:Jones, Jonah 453:Bibliography 442:Conwy valley 431: 399: 396: 364: 334: 330: 314: 313: 281:Surface area 120: 105: 96: 86: 79: 72: 65: 53: 41:Please help 36:verification 33: 422:River Conwy 410:Afon Eigiau 406:Llyn Cowlyd 393:Present-day 351:brown trout 343:Llyn Cowlyd 339:Arctic char 315:Llyn Eigiau 246:Afon Eigiau 215: / 190:Coordinates 162:Llyn Eigiau 126:Llyn Eigiau 517:Categories 481:References 438:Tal-y-bont 402:Llyn Dulyn 347:Llyn Peris 289:Max. depth 99:March 2022 69:newspapers 440:, in the 387:Dolgarrog 371:aluminium 367:Dolgarrog 323:Snowdonia 319:Carneddau 203:3°54′57″W 200:53°10′8″N 178:Snowdonia 462:(1987). 174:Location 523:Caerhun 335:Llynyga 184:, Wales 182:Gwynedd 83:scholar 428:Access 331:Eigiau 85:  78:  71:  64:  56:  434:B5106 327:Conwy 267:Basin 90:JSTOR 76:books 229:Type 62:news 436:at 361:Dam 45:by 519:: 497:. 424:. 357:. 325:, 180:, 112:) 106:( 101:) 97:( 87:· 80:· 73:· 66:· 39:.

Index


verification
improve this article
adding citations to reliable sources
"Llyn Eigiau"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message

Llyn Eigiau is located in Gwynedd
Snowdonia
Gwynedd
53°10′8″N 3°54′57″W / 53.16889°N 3.91583°W / 53.16889; -3.91583
Type
Primary inflows
Afon Eigiau
Primary outflows
Afon Porth-llwyd
Basin


Carneddau
Snowdonia
Conwy
Arctic char
Llyn Cowlyd
Llyn Peris

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.