Knowledge (XXG)

Spillway

Source 📝

423: 473: 439: 241: 613: 527: 562: 118: 593: 581: 508: 144:. If present, the fuse plug is designed to wash out in case of a large flood, greater than the discharge capacity of the spillway gates. Although many months may be needed for construction crews to restore the fuse plug and channel after such an operation, the total damage and cost to repair is less than if the main water-retaining structures had been overtopped. The fuse plug concept is used where building a spillway with the required capacity would be costly. 625: 489: 336: 167:. Most often, they are lined on the bottom and sides with concrete to protect the dam and topography. They may have a controlling device and some are thinner and multiply-lined if space and funding are tight. In addition, they are not always intended to dissipate energy like stepped spillways. Chute spillways can be ingrained with a baffle of concrete blocks but usually have a "flip lip" and/or dissipator basin, which creates a 546: 38: 458: 229: 186: 407:
Spillway gates may operate suddenly without warning, under remote control. Trespassers within the spillway are at high risk of drowning. Spillways are usually fenced and equipped with locked gates to prevent casual trespassing within the structure. Warning signs, sirens, and other measures may be in
139:
In an intermediate type, normal level regulation of the reservoir is controlled by the mechanical gates. In this case, the dam is not designed to function with water flowing over the top if it, either due to the materials used for its construction or conditions directly downstream. If inflow to the
398:
Third, a stilling basin at the terminus of a spillway serves to further dissipate energy and prevent erosion. They are usually filled with a relatively shallow depth of water and sometimes lined with concrete. A number of velocity-reducing components can be incorporated into their design to include
135:
An uncontrolled spillway, in contrast, does not have gates; when the water rises above the lip or crest of the spillway, it begins to be released from the reservoir. The rate of discharge is controlled only by the height of water above the reservoir's spillway. The fraction of storage volume in the
318:
with a 1% chance of being exceeded in any given year. The volume of water expected during the design flood is obtained by hydrologic calculations of the upstream watershed. The return period is set by dam safety guidelines, based on the size of the structure and the potential loss of human life or
296:
The ogee crest over-tops a dam, a side channel wraps around the topography of a dam, and a labyrinth uses a zig-zag design to increase the sill length for a thinner design and increased discharge. A drop inlet resembles an intake for a hydroelectric power plant, and transfers water from behind the
287:
uses the difference in height between the intake and the outlet to create the pressure difference required to remove excess water. Siphons require priming to remove air in the bend for them to function, and most siphon spillways are designed to use water to automatically prime the siphon. One such
305:
One parameter of spillway design is the largest flood it is designed to handle. The structures must safely withstand the appropriate spillway design flood (SDF), sometimes called the inflow design flood (IDF). The magnitude of the SDF may be set by dam safety guidelines, based on the size of the
208:
have been used for over 3,000 years. Despite being superseded by more modern engineering techniques such as hydraulic jumps in the mid twentieth century, since around 1985 interest in stepped spillways and chutes has been renewed, partly due to the use of new construction materials (e.g.
326:
bases their requirements on the probable maximum flood (PMF) and the probable maximum precipitation (PMP). The PMP is the largest precipitation thought to be physically possible in the upstream watershed. Dams of lower hazard may be allowed to have an IDF less than the PMF.
131:
A controlled spillway has mechanical structures or gates to regulate the rate of flow. This design allows nearly the full height of the dam to be used for water storage year-round, and flood waters can be released as required by opening one or more gates.
955:
Non-Aerated Skimming Flow Properties on Stepped Chutes over Small Embankment Dams in Hydraulic Structures: a Challenge to Engineers and Researchers, Proceedings of the International Junior Researcher and Engineer Workshop on Hydraulic
79:
to regulate water flow and reservoir level. Such features enable a spillway to regulate downstream flow—by releasing water in a controlled manner before the reservoir is full, operators can prevent an unacceptably large release later.
422: 351:. Failure to dissipate the water's energy can lead to scouring and erosion at the dam's toe (base). This can cause spillway damage and undermine the dam's stability. To put this energy in perspective, the spillways at 472: 288:
design is the volute siphon, which employs volutes or fins on a funnel to form water into a vortex that draws air out of the system. The priming happens automatically when the water level rises above the inlets.
260:), or glory hole spillways. In areas where the surface of the reservoir may freeze, this type of spillway is normally fitted with ice-breaking arrangements to prevent the spillway from becoming ice-bound. 217:) and design techniques (e.g. embankment overtopping protection). The steps produce considerable energy dissipation along the chute and reduce the size of the required downstream energy dissipation basin. 438: 526: 136:
reservoir above the spillway crest can only be used for the temporary storage of floodwater; it cannot be used as water supply storage because it sits higher than the dam can retain it.
94:
Water normally flows over a spillway only during flood periods, when the reservoir has reached its capacity and water continues entering faster than it can be released. In contrast, an
408:
place to warn users of the downstream area of sudden release of water. Operating protocols may require "cracking" a gate to release a small amount of water to warn persons downstream.
114:
pool. Dams may also have bottom outlets with valves or gates which may be operated to release flood flow, and a few dams lack overflow spillways and rely entirely on bottom outlets.
612: 163:
A chute spillway is a common and basic design that transfers excess water from behind the dam down a smooth decline into the river below. These are usually designed following an
140:
reservoir exceeds the gate's capacity, an artificial channel called an auxiliary or emergency spillway will convey water. Often, that is intentionally blocked by a
1240: 390:
A ski jump can direct water horizontally and eventually down into a plunge pool, or two ski jumps can direct their water discharges to collide with one another.
592: 561: 220:
Research is still active on the topic, with newer developments on embankment dam overflow protection systems, converging spillways and small weir design.
488: 580: 1145: 507: 1061: 624: 83:
Other uses of the term "spillway" include bypasses of dams and outlets of channels used during high water, and outlet channels carved through
1391: 1361: 1331: 1301: 1153: 991: 964: 832: 799: 323: 545: 1177: 695: 306:
structure and the potential loss of human life or property downstream. The magnitude of the flood is sometimes expressed as a
1087: 457: 256:, where water can enter around the entire perimeter. These uncontrolled spillways are also called morning glory (after the 1442: 314:
is the flood magnitude expected to be exceeded on the average of once in 100 years. This parameter may be expressed as an
1291: 981: 912: 1411: 267:
in Montana, U.S., and is controlled by a 64-by-12-foot (19.5 by 3.7 m) ring gate. The bell-mouth spillway in
210: 240: 271:
reservoir in Portugal is constructed to look like a natural formation. The largest bell-mouth spillway is in
315: 1113: 1009:"Analysis of the Impact of Effective Length of Morning Glory Spillway on Its Performance (Numerical Study)" 117: 1452: 1265: 861: 765: 411:
The sudden closure of a spillway gate can result in the stranding of fish, and this is usually avoided.
153: 1065: 275:, in New South Wales, Australia, measuring 105 ft (32 m) in diameter at the lake's surface. 98:
is a structure used to control water release on a routine basis for purposes such as water supply and
64:, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as 268: 263:
Some bell-mouth spillways are gate-controlled. The highest morning glory spillway in the world is at
233: 190: 723:(2001–2002). "Historical Development of Stepped Cascades for the Dissipation of Hydraulic Energy". 675: 670: 68:. Spillways ensure that water does not damage parts of the structure not designed to convey water. 1437: 1216: 879: 1387: 1381: 1357: 1327: 1321: 1297: 1149: 987: 960: 828: 795: 769: 645: 111: 1356:. IAHR Monograph, CRC Press, Taylor & Francis Group, Leiden, The Netherlands, 168 pages. 1139: 913:"Hydraulic Design of Stepped Spillways and Downstream Energy Dissipators for Embankment Dams" 1020: 857: 761: 665: 655: 552: 367: 355:
could, at full capacity, produce 40,000 MW; about 10 times the capacity of its power plant.
344: 264: 205: 180: 99: 939:
Hydraulic Design of Stepped Spillways and Downstream Energy Dissipators for Embankment Dams
335: 537: 959:. St. Lucia, Qld.: University of Queensland, Division of Civil Engineering. p. 205. 746: 1192: 1040: 1421: 1377: 1347: 908: 875: 820: 787: 742: 720: 699: 599: 568: 449: 445: 429: 379: 348: 311: 245: 168: 1351: 358:
The energy can be dissipated by addressing one or more parts of a spillway's design.
37: 1447: 1431: 307: 257: 253: 194: 941:. Impact of Converging Chute Walls for Roller Compacted Concrete Stepped Spillways. 572: 464: 366:
First, on the spillway surface itself by a series of steps along the spillway (see
228: 122: 95: 84: 42: 1091: 1141:
The Bureau of Reclamation: history essays from the centennial symposium, Volume 1
56:
is a structure used to provide the controlled release of water downstream from a
660: 514: 352: 185: 953: 618:
The spillway at Monticello Dam, Lake Berryessa, in operation. February 19, 2017
499: 479: 164: 773: 650: 631: 533: 272: 141: 76: 72: 1326:(4. ed., repr. ed.). London : Taylor & Francis. pp. 244–260. 1415: 880:"Hydraulic Design of Stepped Spillways and Downstream Energy Dissipators" 518: 236:
since its construction in 1955 such that it resembles a natural formation
17: 1025: 1008: 482:'s Arizona side channel drum-gate spillway (left) during the 1983 floods 495: 198: 88: 399:
chute blocks, baffle blocks, wing walls, surface boils, or end sills.
284: 214: 31: 980:
Ratnayaka, Don D.; Brandt, Malcolm J.; Johnson, K. Michael (2009).
792:
Hydraulic Design of Stepped Cascades, Channels, Weirs and Spillways
334: 239: 227: 184: 116: 61: 46: 128:
The two main types of spillways are controlled and uncontrolled.
1420:- information, images, and construction information about the 1266:"Manual on Estimation of Probable Maximum Precipitation (PMP)" 1007:
Sabeti, Parham; Karami, Hojat; Sarkardeh, Hamed (2019-06-30).
378:
Second, at the base of a spillway, a flip bucket can create a
57: 848:
Rajaratnam, N. (1990). "Skimming Flow in Stepped Spillways".
27:
Structure for controlled release of flows from a dam or levee
986:(6th ed.). Oxford: Butterworth-Heinemann. p. 177. 1041:"Lake Berryessa, Bureau of Reclamation, Mid-Pacific Region" 428:
Lake Berryessa overflowing into the glory hole spillway at
30:"Spillways" redirects here. For the song by Ghost, see 297:
dam directly through tunnels to the river downstream.
586:
Bell-mouth spillway of Hungry Horse Dam in operation.
444:
A labyrinth spillway and a fish ladder (left) of the
343:
As water passes over a spillway and down the chute,
339:
A U.S. Bureau of Reclamation type-III stilling basin
232:Vegetation has grown in the bell mouth spillway at 747:"Hydraulics of Stepped Spillways: Current Status" 536:(bottom) and an auxiliary ogee spillway (top) at 696:"Chute spillways, The Engineering of Large Dams" 1241:"INFLOW DESIGN FLOODS FOR DAMS AND RESERVOIRS" 937:S.L. Hunt, S.R. Abt & D.M. Temple (2008). 902: 900: 825:The Hydraulics of Stepped Chutes and Spillways 494:A labyrinth spillway entrance (bottom) at the 171:, protecting the toe of the dam from erosion. 815: 813: 811: 8: 1386:. Dordrecht u.a.: Kluwer. pp. 213–218. 1064:. U.S. Bureau of Reclamation. Archived from 1353:Energy Dissipation in Hydraulic Structures 1185:Journal of the Indian Institute of Science 952:I. Meireles; J. Cabrita; J. Matos (2006). 252:A bell-mouth spillway is designed like an 1024: 1315: 1313: 1146:United States Government Printing Office 634:bell-mouth spillway exposed at low water 189:A stepped chute baffled spillway of the 110:A spillway is located at the top of the 36: 862:10.1061/(ASCE)0733-9429(1990)116:4(587) 766:10.1061/(ASCE)0733-9429(2000)126:9(636) 686: 551:Semicircular spillways of Ohzuchi Dam ( 418: 121:Cross-section of typical spillway with 1293:Irrigation and Water Power Engineering 1217:"Hydraulic Design, Types of Spillways" 1383:Energy dissipators and hydraulic jump 324:United States Army Corps of Engineers 7: 1296:. Firewall Media. pp. 500–501. 725:Transactions of the Newcomen Society 25: 1013:Instrumentation Mesure Métrologie 850:Journal of Hydraulic Engineering 754:Journal of Hydraulic Engineering 623: 611: 591: 579: 560: 544: 525: 506: 487: 471: 456: 437: 421: 1043:. Dept. of Interior. 2017-12-15 1114:"Hungry Horse Project History" 206:Stepped channels and spillways 1: 513:An ogee-type spillway at the 463:Spillway with flip bucket at 1191:(3): 915–930. Archived from 1119:. U.S. Bureau of Reclamation 382:and deflect water upwards. 312:100-year recurrence interval 1138:Storey, Brit Allan (2008). 532:An emergency spillway with 248:, California, in March 2017 1469: 178: 151: 29: 1178:"Design of Volute Siphon" 347:converts into increasing 211:roller-compacted concrete 1176:Rao, Govinda NS (2008). 598:A drop inlet in use at 567:Low-height spillway of 244:Glory hole spillway in 340: 319:property downstream. 249: 237: 202: 125: 71:Spillways can include 49: 338: 301:Design considerations 243: 231: 188: 154:Open channel spillway 148:Open channel spillway 120: 40: 1443:Hydraulic structures 1323:Hydraulic structures 983:Twort's water supply 316:exceedance frequency 224:Bell-mouth spillway 191:Yeoman Hey Reservoir 1026:10.18280/i2m.180217 676:Oroville Dam crisis 671:Toddbrook Reservoir 1320:Novak, P. (2008). 1222:. Rowan University 1062:"Hungry Horse Dam" 694:Henry H., Thomas. 341: 331:Energy dissipation 250: 238: 203: 126: 50: 41:Chute spillway of 1393:978-0-7923-1508-7 1363:978-1-138-02755-8 1333:978-0-415-38625-8 1303:978-81-7008-084-8 1271:. WMO. p. 26 1155:978-0-16-081822-6 993:978-0-7506-6843-9 966:978-1-86499-868-9 834:978-90-5809-352-3 801:978-0-08-041918-3 646:Dam safety system 269:Covão dos Conchos 234:Covão dos Conchos 66:overflow channels 16:(Redirected from 1460: 1419: 1414:. Archived from 1412:"The Glory Hole" 1398: 1397: 1374: 1368: 1367: 1344: 1338: 1337: 1317: 1308: 1307: 1287: 1281: 1280: 1278: 1276: 1270: 1262: 1256: 1255: 1253: 1251: 1245: 1237: 1231: 1230: 1228: 1227: 1221: 1213: 1207: 1206: 1204: 1203: 1197: 1182: 1173: 1167: 1166: 1164: 1162: 1135: 1129: 1128: 1126: 1124: 1118: 1109: 1103: 1102: 1100: 1099: 1090:. Archived from 1084: 1078: 1077: 1075: 1073: 1058: 1052: 1051: 1049: 1048: 1037: 1031: 1030: 1028: 1004: 998: 997: 977: 971: 970: 949: 943: 942: 934: 928: 927: 917: 907:Gonzalez, C.A.; 904: 895: 894: 884: 872: 866: 865: 845: 839: 838: 817: 806: 805: 784: 778: 777: 751: 739: 733: 732: 717: 711: 710: 708: 707: 698:. Archived from 691: 666:Tailrace fishing 656:Stepped spillway 627: 615: 595: 583: 564: 548: 529: 510: 491: 475: 460: 441: 425: 368:stepped spillway 345:potential energy 265:Hungry Horse Dam 181:Stepped spillway 175:Stepped spillway 100:hydroelectricity 21: 1468: 1467: 1463: 1462: 1461: 1459: 1458: 1457: 1428: 1427: 1409: 1406: 1401: 1394: 1378:Hager, Willi H. 1376: 1375: 1371: 1364: 1346: 1345: 1341: 1334: 1319: 1318: 1311: 1304: 1290:Punmia (1992). 1289: 1288: 1284: 1274: 1272: 1268: 1264: 1263: 1259: 1249: 1247: 1243: 1239: 1238: 1234: 1225: 1223: 1219: 1215: 1214: 1210: 1201: 1199: 1195: 1180: 1175: 1174: 1170: 1160: 1158: 1156: 1137: 1136: 1132: 1122: 1120: 1116: 1112:Stene, Eric A. 1111: 1110: 1106: 1097: 1095: 1086: 1085: 1081: 1071: 1069: 1068:on 13 June 2011 1060: 1059: 1055: 1046: 1044: 1039: 1038: 1034: 1006: 1005: 1001: 994: 979: 978: 974: 967: 951: 950: 946: 936: 935: 931: 920:Dam Engineering 915: 906: 905: 898: 887:Dam Engineering 882: 874: 873: 869: 847: 846: 842: 835: 819: 818: 809: 802: 786: 785: 781: 749: 741: 740: 736: 719: 718: 714: 705: 703: 702:on 9 April 2010 693: 692: 688: 684: 642: 635: 628: 619: 616: 607: 596: 587: 584: 575: 565: 556: 549: 540: 538:New Waddell Dam 530: 521: 511: 502: 492: 483: 476: 467: 461: 452: 442: 433: 426: 417: 405: 333: 303: 294: 281: 279:Siphon spillway 226: 183: 177: 161: 156: 150: 108: 35: 28: 23: 22: 15: 12: 11: 5: 1466: 1464: 1456: 1455: 1450: 1445: 1440: 1430: 1429: 1426: 1425: 1422:Lake Berryessa 1418:on 2011-06-01. 1405: 1404:External links 1402: 1400: 1399: 1392: 1369: 1362: 1339: 1332: 1309: 1302: 1282: 1257: 1232: 1208: 1168: 1154: 1148:. p. 36. 1130: 1104: 1079: 1053: 1032: 1019:(2): 211–221. 999: 992: 972: 965: 944: 929: 896: 867: 856:(4): 587–591. 840: 833: 807: 800: 779: 760:(9): 636–637. 734: 712: 685: 683: 680: 679: 678: 673: 668: 663: 658: 653: 648: 641: 638: 637: 636: 629: 622: 620: 617: 610: 608: 600:Horse Mesa Dam 597: 590: 588: 585: 578: 576: 569:Bonneville Dam 566: 559: 557: 550: 543: 541: 531: 524: 522: 512: 505: 503: 493: 486: 484: 477: 470: 468: 462: 455: 453: 450:North Carolina 446:Hope Mills Dam 443: 436: 434: 430:Monticello Dam 427: 420: 416: 413: 404: 401: 396: 395: 394:Stilling basin 388: 387: 380:hydraulic jump 376: 375: 364: 363: 349:kinetic energy 332: 329: 302: 299: 293: 290: 280: 277: 246:Lake Berryessa 225: 222: 179:Main article: 176: 173: 169:hydraulic jump 160: 159:Chute spillway 157: 152:Main article: 149: 146: 107: 104: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1465: 1454: 1453:Flood control 1451: 1449: 1446: 1444: 1441: 1439: 1436: 1435: 1433: 1423: 1417: 1413: 1410:Chris, Fish. 1408: 1407: 1403: 1395: 1389: 1385: 1384: 1379: 1373: 1370: 1365: 1359: 1355: 1354: 1349: 1343: 1340: 1335: 1329: 1325: 1324: 1316: 1314: 1310: 1305: 1299: 1295: 1294: 1286: 1283: 1267: 1261: 1258: 1242: 1236: 1233: 1218: 1212: 1209: 1198:on 2013-12-20 1194: 1190: 1186: 1179: 1172: 1169: 1157: 1151: 1147: 1143: 1142: 1134: 1131: 1115: 1108: 1105: 1094:on 2013-05-03 1093: 1089: 1083: 1080: 1067: 1063: 1057: 1054: 1042: 1036: 1033: 1027: 1022: 1018: 1014: 1010: 1003: 1000: 995: 989: 985: 984: 976: 973: 968: 962: 958: 957: 948: 945: 940: 933: 930: 926:(4): 223–244. 925: 921: 914: 910: 903: 901: 897: 893:(4): 205–242. 892: 888: 881: 877: 871: 868: 863: 859: 855: 851: 844: 841: 836: 830: 826: 822: 816: 814: 812: 808: 803: 797: 793: 789: 783: 780: 775: 771: 767: 763: 759: 755: 748: 744: 738: 735: 731:(2): 295–318. 730: 726: 722: 716: 713: 701: 697: 690: 687: 681: 677: 674: 672: 669: 667: 664: 662: 659: 657: 654: 652: 649: 647: 644: 643: 639: 633: 626: 621: 614: 609: 605: 601: 594: 589: 582: 577: 574: 570: 563: 558: 554: 547: 542: 539: 535: 528: 523: 520: 516: 509: 504: 501: 497: 490: 485: 481: 478:Water enters 474: 469: 466: 459: 454: 451: 447: 440: 435: 431: 424: 419: 414: 412: 409: 402: 400: 393: 392: 391: 385: 384: 383: 381: 373: 372: 371: 369: 361: 360: 359: 356: 354: 350: 346: 337: 330: 328: 325: 320: 317: 313: 309: 308:return period 300: 298: 291: 289: 286: 278: 276: 274: 270: 266: 261: 259: 255: 254:inverted bell 247: 242: 235: 230: 223: 221: 218: 216: 212: 207: 200: 196: 195:Peak District 192: 187: 182: 174: 172: 170: 166: 158: 155: 147: 145: 143: 137: 133: 129: 124: 123:Tainter gates 119: 115: 113: 105: 103: 101: 97: 92: 90: 86: 81: 78: 74: 69: 67: 63: 59: 55: 48: 44: 39: 33: 19: 1416:the original 1382: 1372: 1352: 1342: 1322: 1292: 1285: 1273:. Retrieved 1260: 1248:. Retrieved 1235: 1224:. Retrieved 1211: 1200:. Retrieved 1193:the original 1188: 1184: 1171: 1159:. Retrieved 1140: 1133: 1121:. Retrieved 1107: 1096:. Retrieved 1092:the original 1082: 1070:. Retrieved 1066:the original 1056: 1045:. Retrieved 1035: 1016: 1012: 1002: 982: 975: 954: 947: 938: 932: 923: 919: 890: 886: 870: 853: 849: 843: 824: 794:. Pergamon. 791: 782: 757: 753: 737: 728: 724: 715: 704:. Retrieved 700:the original 689: 603: 602:in Arizona, 573:sluice gates 465:Burdekin Dam 410: 406: 397: 389: 377: 365: 357: 342: 321: 304: 295: 282: 262: 251: 219: 204: 162: 138: 134: 130: 127: 109: 102:generation. 96:intake tower 93: 85:natural dams 82: 70: 65: 53: 51: 43:Llyn Brianne 1424:glory hole. 1348:Chanson, H. 909:Chanson, H. 876:Chanson, H. 827:. Balkema. 661:Fish ladder 553:Shiga Pref. 515:Crystal Dam 374:Flip bucket 353:Tarbela Dam 292:Other types 1432:Categories 1226:2010-07-05 1202:2013-12-19 1161:1 November 1123:1 November 1098:2016-10-04 1072:1 November 1047:2019-03-08 956:Structures 821:H. Chanson 788:H. Chanson 743:H. Chanson 721:H. Chanson 706:2010-07-05 682:References 500:New Mexico 480:Hoover Dam 165:ogee curve 77:fuse plugs 73:floodgates 1438:Spillways 774:0733-9429 651:Reservoir 632:Geehi Dam 534:fuse plug 273:Geehi Dam 142:fuse plug 112:reservoir 18:Spillways 1380:(1992). 1350:(2015). 911:(2007). 878:(2001). 823:(2002). 790:(1995). 745:(2000). 640:See also 555:, Japan) 519:Colorado 386:Ski jump 89:moraines 87:such as 54:spillway 1275:5 April 1250:5 April 1246:. USACE 496:Ute Dam 415:Gallery 215:gabions 199:England 193:in the 45:dam in 1390:  1360:  1330:  1300:  1152:  1088:"Dams" 990:  963:  831:  798:  772:  403:Safety 285:siphon 258:flower 32:Impera 1269:(PDF) 1244:(PDF) 1220:(PDF) 1196:(PDF) 1181:(PDF) 1117:(PDF) 916:(PDF) 883:(PDF) 750:(PDF) 604:circa 571:with 362:Steps 106:Types 62:levee 47:Wales 1448:Dams 1388:ISBN 1358:ISBN 1328:ISBN 1298:ISBN 1277:2019 1252:2019 1163:2010 1150:ISBN 1125:2010 1074:2010 988:ISBN 961:ISBN 829:ISBN 796:ISBN 770:ISSN 630:The 606:1940 370:). 322:The 310:. A 75:and 1021:doi 858:doi 854:116 762:doi 758:126 517:in 498:in 448:in 197:in 60:or 58:dam 1434:: 1312:^ 1189:88 1187:. 1183:. 1144:. 1017:18 1015:. 1011:. 924:17 922:. 918:. 899:^ 891:11 889:. 885:. 852:. 810:^ 768:. 756:. 752:. 729:71 727:. 283:A 213:, 91:. 52:A 1396:. 1366:. 1336:. 1306:. 1279:. 1254:. 1229:. 1205:. 1165:. 1127:. 1101:. 1076:. 1050:. 1029:. 1023:: 996:. 969:. 864:. 860:: 837:. 804:. 776:. 764:: 709:. 432:. 201:. 34:. 20:)

Index

Spillways
Impera

Llyn Brianne
Wales
dam
levee
floodgates
fuse plugs
natural dams
moraines
intake tower
hydroelectricity
reservoir

Tainter gates
fuse plug
Open channel spillway
ogee curve
hydraulic jump
Stepped spillway

Yeoman Hey Reservoir
Peak District
England
Stepped channels and spillways
roller-compacted concrete
gabions

Covão dos Conchos

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