Rule level & gate operation - K.G.Mistry Assistant Engineer, Central Designs Organisation, Gandhinagar

10. Rule Level

13. CONCEPT OF STORAGE ZONING Crest RL MDDL Surcharge Storage MWL Dead Storage Conservation Storage Flood Control Storage Top of dam Spillway Undersluices Dam River Free board FRL Rule Level

16. Rule Curves A reservoir is operated according to prevailing water level, demands for various purposes, and the elevation of rule levels for different purposes To increase the flexibility of operation, different rule curves may be derived for different purposes depending on their priority.

18. Min. required flow Natural flow D I S C H A R G E Non-damaging flow Water deficit Flood damage Demand Time Min. flow deficit

21. CONSERVATION OPERATION URC MRC LRC

24. CONSERVATION OPERATION Operation of a reservoir using Rule Curves: If reservoir level falls below LRC, meet only partial highest priority demands Basic principle – It is always better to meet reduced demands throughout the year than to meet full demands in the beginning with no water at the end.

29. How Rule Levels are Derived?

37. SR NAME CREST F.R.L. Likely Proposed Rule levels for monsoon-2009 as on NO OF R.L. Reservoir SCHEME level as 1-07 1-08 1-09 1-10 16-10 (m) (m) on 31-5-09 (m) (m) (m) (m) (m) 1 2 3 4 11 12 13 14 15 16 RAJKOT IRRIGATION PROJECT CIRCLE , RAJKOT 1 UND-II 12.15 18.25 13.90 17.75 17.75 18.25 18.25 18.25 2 VARTU-II 33.85 39.95 33.12 39.65 39.95 39.95 39.95 39.95 3 FULZAR(K.B) 89.75 95.85 89.75 94.85 94.85 95.35 95.85 95.85 4 DEMI-III 19.50 25.60 -- 23.60 24.30 25.00 25.60 25.60 5 SURVO 93.75 99.85 96.00 99.00 99.50 99.85 99.85 99.85 6 DONDI 100.67 103.70 0.00 102.80 102.80 102.80 102.80 102.80 7 KARNUKI 161.45 164.50 159.00 162.00 162.50 163.00 163.50 163.50 8 BANTWA KHARO 13.20 16.25 13.60 15.25 15.75 16.25 16.25 16.25

38. SR NAME CREST F.R.L. Likely Proposed Rule levels for monsoon-2009 as on NO. OF R.L. Reservoir SCHEME level as 1-07-09 1-08-09 1-09-09 1-10-09 16-10-09 (m) (m) on 31-5-09 (m) (m) (m) (m) (m) 1 2 3 4 11 12 13 14 15 16 RAJKOT IRRIGATION CIRCLE , RAJKOT 1 MOTISAR 141.00 143.00 139.50 143.00 143.00 143.00 143.00 143.00 2 BHADAR - I 106.09 107.92 103.08 107.30 107.60 107.92 107.92 107.92 3 MOJ 71.02 72.54 64.40 72.54 72.54 72.54 72.54 72.54 4 VENU-II 48.91 55.00 47.40 54.00 54.50 55.00 55.00 55.00 5 BANGAWADI 41.05 42.65 36.32 42.65 42.65 42.65 42.65 42.65 6 NYARI-II 82.40 88.50 85.00 88.50 88.50 88.50 88.50 88.50 7 GHODADHROI 92.20 98.30 Nil 97.70 98.00 98.00 98.30 98.30 8 CHHAPARWADI-II 90.15 98.38 Nil 98.00 98.38 98.38 98.38 98.38 9 KARMAL 162.90 169.00 Nil 168.70 169.00 169.00 169.00 169.00 10 NIMBHANI 131.45 134.50 Nil 134.20 134.50 134.50 134.50 134.50

39. SR NAME CREST F.R.L. Likely Proposed Rule levels for monsoon-2009 as on NO. OF R.L. Reservoir SCHEME level as 1-07-09 1-08-09 1-09-09 1-10-09 16-10-09 (m) (m) on 31-5-09 (m) (m) (m) (m) (m) 1 2 3 4 11 12 13 14 15 16 BHAVNAGAR IRRIGATION CIRCLE , BHAVNAGAR 1 SHETRUNJI 54.63 55.55 46.67 55.25 55.25 55.55 55.55 55.55 2 HAMIRPARA 81.70 87.80 -- 87.00 87.50 87.50 87.80 87.80 3 LAKHANKA 38.12 44.22 -- 44.22 44.22 44.22 44.22 44.22 4 KHODIYAR 196.58 202.68 193.50 201.00 202.25 202.50 202.68 202.68 5 SUKHBHADAR 103.10 109.20 102.50 107.20 107.70 109.20 109.20 109.20 6 KHAMBHADA 46.69 50.35 48.30 49.00 49.75 50.35 50.35 50.35 7 RANGHOLA 60.98 62.50 -- 62.50 62.50 62.50 62.50 62.50 8 MALAN 102.74 104.25 -- 104.25 104.25 104.25 104.25 104.25 9 MALPARA 72.00 78.10 -- 76.50 77.25 77.80 78.10 78.10

41. Computational procedure DATA RL-Cap-Area Chart

42. Computational procedure DATA- DEMANDS Sr Period Demand Evap Depth From To irri WS m 1 1-Oct 0 0 0 2 21-Sep 30-Sep 112.00 0 0.029 3 11-Sep 30-Sep 255.10 0 0.058 4 1-Sep 30-Sep 372.52 0 0.088 5 21-Aug 30-Sep 541.88 0 0.114 6 11-Aug 30-Sep 698.28 0 0.141 7 1-Aug 30-Sep 844.95 0 0.167 8 21-Jul 30-Sep 887.63 0 0.198 9 11-Jul 30-Sep 919.45 0 0.229 10 1-Jul 30-Sep 968.30 0 0.260

43. Computational procedure DATA- 10-DAILY INFLOW SERIES

44. Computational procedure DATA- 10-DAILY INFLOW SERIES ARRANGED IN DESCENDING ORDER

45. COMPUTATION OF RULE LEVELS FRL = 105.157 m (345 FT) Surplus = (Inflow – Total Demand)

46. UKAI RES. PROJ.(1973-2006, CARR ( By RWT.exe ) -------------------------------- RESERVOIR WORKING TABLE ------------------------- ****************************** ** ALL FIGURES ARE IN MKS ** PAGE 1 ****************************** F.R.L. .................... 105.150 L.W.L. .................... 82.300 CAPACITY AT F.R.L. ...... 7497.000 CAPACITY AT L.W.L. ...... 882.000 DESIGN CARRYOVER ......... .000 WATER SUPPLY RESERVATION.. .000 IRRIGABLE AREA.............. 10000.00 JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN IRRI. REQ. 123.3 472.4 372.5 260.3 326.9 349.1 404.6 444.1 413.2 436.7 470.0 314.5 ****** TOTAL REQ. 123.3 472.4 372.5 260.3 326.9 349.1 404.6 444.1 413.2 436.7 470.0 314.5 ****** EVAP. DEP. .101 .101 .152 .203 .152 .127 .127 .127 .203 .229 .254 .203 1.98 --------------------------------------------------------------------------------------------------------- OPEN. CORS. IN ABSTRACT RES. EVEP TOT. CORS SPI % YEAR MON TOTAL ---------- AREA AL BAL LL TH BAL. RL FLOW IRRI W/S (AV) LOSS ABST RL. DEF ---------------------------------------------------------------------------------------------------------- 2001 JUL 882.0 82.3 1153.0 2035.0 123.3 .0 166.0 16.8 140.1 1894.9 89.2 .0 .0 AUG 1894.9 89.2 2386.0 4280.9 472.4 .0 255.9 25.8 498.3 3782.6 95.9 .0 .0 SEP 3782.6 95.9 943.0 4725.6 372.5 .0 334.3 50.8 423.3 4302.3 97.3 .0 .0 OCT 4302.3 97.3 508.0 4810.3 260.3 .0 352.1 71.5 331.7 4478.5 97.8 .0 .0 NOV 4478.5 97.8 333.0 4811.5 326.9 .0 355.8 54.1 381.0 4430.6 97.7 .0 .0 DEC 4430.6 97.7 281.0 4711.6 349.1 .0 351.3 44.6 393.7 4317.9 97.3 .0 .0 JAN 4317.9 97.3 265.0 4582.9 404.6 .0 343.9 43.7 448.3 4134.6 96.8 .0 .0 FEB 4134.6 96.8 191.0 4325.6 444.1 .0 331.6 42.1 486.2 3839.4 96.0 .0 .0 MAR 3839.4 96.0 222.0 4061.4 413.2 .0 315.9 64.1 477.3 3584.1 95.3 .0 .0 APR 3584.1 95.3 224.0 3808.1 436.7 .0 298.3 68.3 505.0 3303.1 94.4 .0 .0 MAY 3303.1 94.4 266.0 3569.1 470.0 .0 281.4 71.5 541.4 3027.7 93.5 .0 .0 JUN 3027.7 93.5 374.0 3401.7 314.5 .0 273.5 55.5 370.1 3031.6 93.5 .0 .0 NO. OF FAIL YEARS = 0 %AGE RELIABILITY =100.0

47. UKAI RES. PROJ.(1973-2006, CARR -------------------------------- RESERVOIR WORKING TABLE ------------------------- ****************************** ** ALL FIGURES ARE IN MKS ** PAGE 1 ****************************** F.R.L. .................... 105.150 L.W.L. .................... 82.300 CAPACITY AT F.R.L. ...... 7497.000 CAPACITY AT L.W.L. ...... 882.000 DESIGN CARRYOVER ......... 1699.000 WATER SUPPLY RESERVATION.. .000 IRRIGABLE AREA.............. 10000.00 JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN IRRI. REQ. 123.3 472.4 372.5 260.3 326.9 349.1 404.6 444.1 413.2 436.7 470.0 314.5 ****** TOTAL REQ. 123.3 472.4 372.5 260.3 326.9 349.1 404.6 444.1 413.2 436.7 470.0 314.5 ****** EVAP. DEP. .101 .101 .152 .203 .152 .127 .127 .127 .203 .229 .254 .203 1.98 --------------------------------------------------------------------------------------------------------- OPEN. CORS. IN ABSTRACT RES. EVEP TOT. CORS SPI % YEAR MON TOTAL---------- AREA AL BAL LL TH BAL. RL FLOW IRRI W/S (AV) LOSS ABST RL. DEF --------------------------------------------------------------------------------------------------------- 2001 JUL 2581.0 92.0 1153.0 3734.0 123.3 .0 275.2 27.8 151.1 3582.9 95.2 .0 .0 AUG 3582.9 95.2 2386.0 5968.9 472.4 .0 357.0 36.1 508.5 5460.4 100.3 .0 .0 SEP 5460.4 100.3 943.0 6403.4 372.5 .0 429.9 65.3 437.9 5965.5 101.5 .0 .0 OCT 5965.5 101.5 508.0 6473.5 260.3 .0 451.3 91.6 351.9 6121.6 101.9 .0 .0 NOV 6121.6 101.9 333.0 6454.6 326.9 .0 454.3 69.1 395.9 6058.7 101.8 .0 .0 DEC 6058.7 101.8 281.0 6339.7 349.1 .0 448.3 56.9 406.0 5933.7 101.5 .0 .0 JAN 5933.7 101.5 265.0 6198.7 404.6 .0 437.8 55.6 460.2 5738.5 101.0 .0 .0 FEB 5738.5 101.0 191.0 5929.5 444.1 .0 421.5 53.5 497.6 5431.9 100.2 .0 .0 MAR 5431.9 100.2 222.0 5653.9 413.2 .0 404.3 82.1 495.3 5158.6 99.6 .0 .0 APR 5158.6 99.6 224.0 5382.6 436.7 .0 387.1 88.6 525.3 4857.3 98.8 .0 .0 MAY 4857.3 98.8 266.0 5123.3 470.0 .0 370.2 94.0 564.0 4559.3 98.0 .0 .0 JUN 4559.3 98.0 374.0 4933.3 314.5 .0 361.4 73.4 387.9 4545.4 98.0 .0 .0 --------------------------------------------------------------------------------------------------------- NO. OF FAIL YEARS = 0 %AGE RELIABILITY =100.0

48. UKAI RESERVOIR PROJECT 10-daily Rule Levels with capacity of 1992-93 sedimentation survey F.R.L. 105.157 m Sr Period Inflow Demand Evap Total Surplus Res. Res. Rule Level From To Depth Losses Demand Cap R.L. irri WS m m 1 01-Oct 0.00 0.00 0.00 0.000 0.0000 0.00 0.00 7497.00 105.16 105.00 2 21-Sep 30-Sep 30.10 112.00 0.00 0.029 16.4305 128.43 0.00 7497.00 105.16 105.00 3 11-Sep 30-Sep 154.68 255.10 0.00 0.058 32.8611 287.96 0.00 7497.00 105.16 105.00 4 01-ep 30-Sep 296.79 372.52 0.00 0.088 49.8582 422.38 0.00 7497.00 105.16 105.00 5 21-Aug 30-Sep 1072.80 541.88 0.00 0.114 59.9273 601.81 470.99 7026.01 104.06 104.00 6 11-Aug 30-Sep 2402.32 698.28 0.00 0.141 61.9216 760.20 1642.12 5854.88 101.27 101.00 7 01-ug 30-Sep 2720.95 844.95 0.00 0.167 71.5751 916.53 1804.42 5692.58 100.88 101.00 8 21-Jul 30-Sep 3646.63 887.63 0.00 0.198 74.4870 962.12 2684.51 4812.49 98.67 99.00 9 11-Jul 30-Sep 4231.68 919.45 0.00 0.229 79.2032 998.65 3233.03 4263.97 97.20 97.00 10 01-Jul 30-Sep 4399.68 968.30 0.00 0.260 88.4701 1056.77 3342.91 4154.09 96.90 97.00

49. UKAI RESERVOIR PROJECT 10-daily Rule Levels (75% dependability with capacity of 2003 sedimentation survey F.R.L. 105.157 m Sr Period Inflow Demand Evap Evap Total Surplus Cap Res. RL Rule From To depth losses demand level irri WS m 1 1-Oct 0.00 0.00 0.00 0.000 0.0000 0.00 0.00 7414.29 105.16 105.00 2 21-Sep 30-Sep 134.33 112.00 0.00 0.029 17.7535 129.75 4.58 7409.71 105.15 105.00 3 11-Sep 30-Sep 345.12 255.10 0.00 0.058 35.3237 290.42 54.70 7359.59 105.06 105.00 4 1-Sep 30-Sep 735.78 372.52 0.00 0.088 52.1710 424.69 311.09 7103.20 104.62 105.00 5 21-Aug 30-Sep 1622.43 541.88 0.00 0.114 62.5135 604.39 1018.04 6396.25 103.39 103.00 6 11-Aug 30-Sep 3074.63 698.28 0.00 0.141 65.9070 764.19 2310.44 5103.85 100.84 101.00 7 1-Aug 30-Sep 4227.87 844.95 0.00 0.167 67.5210 912.47 3315.40 4098.89 98.53 99.00 8 21-Jul 30-Sep 4859.18 887.63 0.00 0.198 72.9897 960.62 3898.56 3515.73 97.02 97.00 9 11-Jul 30-Sep 5431.59 919.45 0.00 0.229 77.3732 996.82 4434.77 2979.52 95.51 96.00 10 1-Jul 30-Sep 5488.46 968.30 0.00 0.260 87.8869 1056.19 4432.27 2982.02 95.52 96.00

50. RULE CURVES BASED ON 1992-93 & 2003 RESERVOIR CAPACITY

55. MWL/OUTFLOW ATTAINED FOR VARIOUS FLOODS ROUTED AT DIFF. ELEVATIONS MULTIPLYING FACTOR RESERVOIR LEVEL IN M 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 122.00 123.06 124.00 124.95 125.83 126.69 127.48 128.29 129.10 4750. 5941. 7238. 8521. 9870. 11170. 12532. 13914. 122.50 123.27 124.14 125.04 125.89 126.73 127.51 128.31 129.11 5006. 6121. 7359. 8608. 9927. 11214. 12565. 13940. 123.00 123.49 124.29 125.14 125.96 126.78 127.54 128.33 129.13 5289. 6320. 7506. 8726. 10004. 11271. 12612. 13975. 123.50 123.73 124.46 125.26 126.06 126.84 127.59 128.37 129.16 5583. 6559. 7682. 8879. 10107. 11351. 12676. 14026. 124.00 124.06 124.70 125.42 126.20 126.93 127.66 128.43 129.21 6016. 6884. 7920. 9087. 10259. 11472. 12773. 14101. 124.50 124.50 124.95 125.60 126.34 127.04 127.75 128.50 129.26 6610. 7229. 8186. 9315. 10436. 11624. 12896. 14199.

56. MWL/OUTFLOW ATTAINED FOR VARIOUS FLOODS ROUTED AT DIFF. ELEVATIONS MULTIPLYING FACTOR RESERVOIR LEVEL IN M 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 125.00 125.00 125.20 125.81 126.50 127.17 127.86 128.59 129.34 7306. 7593. 8497. 9568. 10648. 11812. 13052. 14325. 125.50 125.50 125.55 126.07 126.69 127.33 128.01 128.71 129.44 8031. 8107. 8890. 9866. 10916. 12055. 13260. 14501. 126.00 126.00 126.00 126.34 126.90 127.50 128.16 128.85 129.56 8784. 8784. 9311. 10203. 11203. 12319. 13495. 14703. 126.50 126.50 126.50 126.64 127.12 127.69 128.33 129.00 129.70 9563. 9563. 9781. 10566. 11521. 12606. 13755. 14936. 127.00 127.00 127.00 127.02 127.40 127.95 128.54 129.19 129.87 10368. 10368. 10396 11033. 11950. 12968. 14080. 15233. 127.41 127.41 127.41 127.41 127.65 128.16 128.74 129.36 130.02 11046. 11046. 11046. 11449. 12315. 13297. 14357. 15483.

61. Computer Programming For Gate Operation ( PGCP.EXE ) Data File : PGDAT Line 1 : Name of Scheme Line 2 : Hd CRL FRL Avg Bed RL No.of Gate Wg Hg 0 Line 3 : X-ordinate of Gate Seat Radius of Gate Xt Yt 1 0 Example : PGDAT SURVO WATER RESOURCES PROJECT 20 307 575 327 588 303 17 16 30 20 0 5.712 24 28.661 6.0367 1 0 Output File : File 1 PGCPO File 2 PGOUT Note : Conversion Factor from meter to ft. is only 3.28 Correct. Because 3.28 is used for programming.

62. SURVO WATER RESOURCES PROJECT ( Partial Gate Opening ) RES. DISC. AT VARIOUS GATE OPENINGS IN M. IN CUMECS ELEV. IN M. .15 .30 .60 .90 1.20 1.50 1.80 2.10 2.40 2.70 3.00 3.30 3.60 3.90 4.20 4.50 4.80 5.10 5.40 5.70 6.00 -------------------------------------------------------------------------------------------------------------------------------------------------- 93.75 0 93.80 0 0 94.00 0 0 0 94.20 46 87 0 0 94.40 53 101 0 0 0 94.60 59 114 210 0 0 0 94.80 64 125 235 0 0 0 0 95.00 69 135 258 364 0 0 0 0 95.20 73 145 278 398 0 0 0 0 0 95.40 78 154 297 429 546 0 0 0 0 0 95.60 82 162 316 458 588 0 0 0 0 0 0 95.80 86 170 333 485 626 755 0 0 0 0 0 0 96.00 90 178 349 511 663 803 0 0 0 0 0 0 0 96.20 93 185 365 536 698 849 988 0 0 0 0 0 0 0 96.40 97 192 380 559 730 892 1043 0 0 0 0 0 0 0 0 96.60 100 199 394 582 762 934 1095 1246 0 0 0 0 0 0 0 0 96.80 103 206 408 604 793 974 1145 1307 0 0 0 0 0 0 0 0 0 97.00 106 212 421 625 822 1011 1193 1365 1527 0 0 0 0 0 0 0 0 0 97.20 109 219 434 645 850 1048 1239 1421 1593 0 0 0 0 0 0 0 0 0 0 97.40 112 225 447 665 877 1084 1283 1475 1658 1831 0 0 0 0 0 0 0 0 0 0 97.60 115 230 459 684 903 1118 1326 1527 1719 1903 0 0 0 0 0 0 0 0 0 0 0 97.80 118 236 471 702 929 1151 1368 1577 1779 1973 0 0 0 0 0 0 0 0 0 0 0 98.00 121 242 483 721 954 1184 1408 1626 1837 2041 2238 0 0 0 0 0 0 0 0 0 0 98.20 123 247 494 738 979 1215 1447 1673 1893 2106 2313 0 0 0 0 0 0 0 0 0 0 98.40 126 253 505 756 1002 1246 1485 1719 1947 2169 2386 2596 0 0 0 0 0 0 0 0 0 98.60 129 258 516 772 1026 1276 1523 1764 2000 2231 2457 2677 0 0 0 0 0 0 0 0 0 98.80 131 263 527 789 1048 1305 1559 1808 2052 2290 2525 2755 2979 0 0 0 0 0 0 0 0 99.00 134 268 537 805 1071 1334 1594 1850 2102 2349 2592 2832 3065 0 0 0 0 0 0 0 0 99.20 136 273 547 821 1092 1362 1629 1892 2151 2406 2658 2906 3149 3385 0 0 0 0 0 0 0 99.40 139 278 557 836 1114 1390 1663 1933 2199 2461 2721 2978 3230 3476 0 0 0 0 0 0 0 99.60 141 283 567 852 1135 1417 1696 1973 2246 2516 2784 3049 3309 3565 3815 0 0 0 0 0 0 99.80 143 287 577 867 1155 1443 1729 2012 2292 2569 2845 3118 3387 3652 3912 0 0 0 0 0 0 99.85 144 289 579 871 1160 1450 1737 2022 2304 2583 2860 3135 3406 3673 3936 4195 0 0 0 0 0 100.00 0 292 586 881 1176 1469 1761 2050 2337 2621 2904 3185 3463 3736 4005 4271 0 0 0 0 0 100.20 0 0 596 896 1195 1495 1792 2088 2381 2673 2963 3252 3537 3819 4098 4373 0 0 0 0 0 100.40 0 0 0 910 1215 1520 1823 2125 2425 2723 3020 3316 3610 3900 4187 4472 4753 0 0 0 0 100.60 0 0 0 0 1234 1545 1854 2162 2468 2772 3076 3380 3681 3979 4275 4569 4859 0 0 0 0 100.80 0 0 0 0 0 1569 1884 2197 2510 2820 3132 3442 3751 4057 4361 4664 4964 5262 0 0 0 101.00 0 0 0 0 0 1593 1913 2233 2551 2868 3186 3504 3820 4133 4446 4757 5066 5374 0 0 0 101.20 0 0 0 0 0 0 1942 2267 2591 2915 3239 3564 3887 4208 4528 4848 5166 5483 5798 0 0 101.40 0 0 0 0 0 0 0 0 2632 2961 3292 3623 3953 4282 4610 4938 5264 5591 5915 0 0 101.60 0 0 0 0 0 0 0 0 0 3006 3343 3681 4018 4354 4690 5026 5360 5696 6029 6360 0 101.80 0 0 0 0 0 0 0 0 0 0 3394 3738 4082 4426 4769 5112 5455 5799 6141 6482 0 102.00 0 0 0 0 0 0 0 0 0 0 0 3795 4146 4496 4846 5197 5548 5900 6252 6602 6951 102.20 0 0 0 0 0 0 0 0 0 0 0 0 0 4565 4922 5281 5639 6000 6360 6719 7077 102.40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4997 5363 5729 6098 6467 6834 7202 102.60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5818 6195 6572 6948 7325 102.80 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7060 7445 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Table : 1

63. SURVO WATER RESOURCES PROJECT ( Free Discharge ) SPILLWAY RATING TABLE FOR 16 NO.OF RADIAL GATES OF SIZE 30. X 20. ------------------------------------------------------------------------------------------------------------------------------- RES. DISCHARGE IN CUMECS ELEV. IN m. .00 .05 .10 .15 .20 .25 .30 .35 .40 .45 .50 .55 .60 .65 .70 .75 .80 .85 .90 .95 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 93.00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 12 19 25 94.00 32 38 50 62 74 87 99 111 126 142 159 175 191 207 225 245 265 284 304 323 95.00 344 367 389 412 434 457 481 506 532 557 582 608 634 662 690 718 746 774 803 833 96.00 864 895 925 956 987 1020 1053 1086 1119 1152 1185 1221 1256 1291 1327 1362 1398 1436 1474 1511 97.00 1549 1587 1625 1665 1705 1745 1785 1826 1866 1908 1950 1992 2034 2076 2118 2162 2207 2251 2295 2340 98.00 2384 2430 2476 2522 2568 2614 2660 2708 2756 2804 2852 2900 2949 2998 3048 3098 3149 3199 3249 3300 99.00 3353 3405 3458 3510 3562 3615 3669 3723 3777 3831 3886 3940 3996 4052 4108 4164 4220 4277 4334 4391 100.00 4449 4506 4563 4620 4680 4739 4798 4857 4916 4975 5036 5097 5158 5219 5280 5341 5404 5467 5530 5593 101.00 5655 5718 5782 5845 5909 5973 6037 6100 6165 6231 6296 6361 6427 6492 6559 6626 6693 6760 6827 6894 102.00 6962 7031 7100 7169 7237 7306 7375 7445 7515 7585 7655 7725 7795 7867 7938 8010 8081 8153 8224 8297 103.00 8369 8442 8514 8586 8659 8733 8807 8881 8955 9029 9103 9177 9252 9327 9402 9476 9551 9627 9703 9780 104.00 9856 9932 10008 10085 10163 10241 10318 10396 10474 10552 10631 10710 10789 10869 10948 11027 11108 11188 11269 11349 105.00 11430 11511 11593 11675 11757 11839 11921 12003 12086 12170 12253 12336 12419 12503 12586 12669 12753 12836 12919 13003 106.00 13086 13169 13253 13336 13419 13503 13586 13669 13752 13836 13919 14002 14086 14169 14252 14336 14419 14502 14586 14669 ------------------------------------------------------------------------------------------------------------------------------------ ----------------------------------------------------------------------------------------------------- Table : 1(a)

64. Plate - 1 Note : 1.Spillway is equipped with 7 No.of Vertical Lift Gate of Size 9.14 m X 3.05 m.( 30’ X 10’ ) 2. All Gates are assumed to be opened uniformly. 3. Gate opening Represents vertical distance of lower edge of gate above gate seat in cms. 4. As the FRL & MWL of Kaniyad W.R.Project are same ( 02.25m.) Free & Partial discharge curves up to RL 102.25m.have been drawn. 5. Partial Curve indicates discharge through all Gates. 6. Transition Zone in corporate here is subject to modification on model Run.

65. (A)Operation guidelines for reservoir condition below FRL When flood starts impounding reservoir, the following guide lines may be observed. 1) Note the rule level fixed for the current period. 2) Note the PWL and its corresponding discharging capacity at current elevation from free discharge curve in Plate-1. 3) If the PWL is below rule level , fill the reservoir up to scheduled rule level. Example: Current rule level = 46.00m Current reservoir level = 43.00m Operation: Fill the reservoir up to RL 46.00m

66. 4) Thereafter, release outflow corresponding to inflow rate by gate operation either partially or under free discharge from the graph as shown in Plate-1 or Table no.1 Example: Radial gates 22 No. Size 14.93m x 10.67m FRL = 53.10m Current rule level = 46.00m Current reservoir level = 46.0m Q free at RL 46.00m = 3965 m 3 /s Operation: Generally there will be two cases (a) Inflow rate is less than free discharging capacity. ( Q = 2790 m 3 /s ) (b) Inflow rate is more than free discharging capacity.( Q = 6000 m 3 /s ) So for each case, it would be necessary to maintain current rule level by controlling the discharge in the following way. a)Example: For inflow rate = 2790 m 3 /s (Less than free discharging capacity 3965 m 3 /s), reduce outflow equal to inflow by opening all gates partially with gate opening =180cm b) Example: For inflow rate = 6000 m 3 /s (more than free discharging capacity 3965 m3/s), allow free discharge of 6000 m 3 /s by opening all gates above water profile( above RL 46.00m). So that the level will build up resulting in to increased free outflow.

67. 5) Repeat this procedure for making outflow equal to inflow approximately until reservoir elevation stops raising and information is received from u/s wireless system that the recession of flood has been started. 6) Operate gates at 1 hr. to 2 hr. intervals , following Plate-1 and decrease outflow gradually when the flood starts receding and rate of rise in water level decreased or fall in water level has been observed. During the process of fall in water level of reservoir, take care that the water level does not fall below scheduled rule level, by suitable gate operation , keeping the outflow restricted within maximum safe carrying capacity of river channel d/s of dam. 7) Close all the gates gradually when water level in the reservoir is again back to the scheduled rule curve level. 8) Know Inflow from forecast station in u/s of dam or u/s projects. 9) To know inflow from rise/fall of water level in reservoir when there is no existence of forecast station in u/s of dam for information of inflow rate incoming when inflow rate can be decided earlier observed rate of rise or fall in the reservoir water levels by using Plate-2

68. How Plate-2 can be used is shown in the below illustrated example .

69. Example : Survo.dat SURVO WATER RESOURCES PROJECT 16 93.75 99.85 93.75 94.0 94.5 95.0 95.5 96.0 96.5 97.0 97.5 98.0 98.5 99.0 99.5 100.0 100.5 101.0 0.87 1.01 1.48 1.95 2.56 3.16 4.11 5.05 6.20 7.35 8.93 10.50 12.50 14.61 17.18 19.75 For Rate of Change of Storage per Hour in Equivalent Discharge Computer Programme : RMK.EXE Line 1 : Name of Scheme Line 2 : No.of RL-Cap Ordinates CRL FRL Line 3 : RL Ordinates. Line 4 : Capacity Ordinates.

70. Survo.out ( RMK.EXE ) Table no.3 SURVO WATER RESOURCES PROJECT Table Showing Rate of Change of Storage per Hour in Equivalent Discharge Reservoir EQ. DISCHARGE ( Cumec ) AT VARIOUS RISE/FALL( m / hr) Level m 0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40 2.70 3.00 1 2 3 4 5 6 7 8 9 10 11 93.75 49.31 111.81 174.31 236.81 309.03 383.06 456.39 544.31 646.81 748.61 94.50 78.33 155.28 229.45 303.06 376.39 478.89 581.11 682.78 796.11 915.28 95.00 90.00 179.72 268.89 366.94 469.44 571.11 678.61 797.78 916.94 1036.11 95.50 100.83 207.50 325.83 443.61 561.11 680.28 799.44 918.61 1061.67 1216.67 96.00 129.17 258.33 387.50 520.55 655.56 790.56 932.22 1087.22 1241.67 1395.83 96.50 157.50 311.11 456.95 603.33 750.00 920.84 1091.39 1261.39 1444.72 1634.72 97.00 174.17 348.61 523.61 703.05 884.72 1066.39 1256.11 1461.95 1673.89 1888.89 97.50 191.67 389.44 599.45 809.44 1019.45 1236.11 1456.11 1682.78 1927.22 2180.56 98.00 227.50 454.72 681.39 920.28 1165.28 1420.28 1678.33 1942.50 2207.22 2472.22 98.50 262.50 525.00 787.50 1056.11 1327.78 1620.28 1913.06 2206.39 2480.28 2744.45 99.00 297.50 598.33 905.84 1215.00 1525.00 1835.00 2139.17 2431.67 2724.72 3018.06 99.50 342.50 685.83 1030.84 1376.39 1722.22 2032.23 2342.22 2652.23 2950.55 3243.06 99.85 370.84 753.19 1128.06 1473.05 1818.47 2164.31 2480.28 2790.28 3100.28 3401.53

72. USE OF PLATE ; 2 ( Table Showing Rate of Change of Storage per Hour in Equivalent Discharge) CASE-I a)Observations:---- Reservoir level at 10:00hr 46.00m Reservoir level at 10:30hr 46.15m So, rise in water level = (46.15 – 46.00)/ 0.50 hr = 0.30m / hr (30cm/hr.) Outflow released between 10:00 to 10:30hr –Nil Earlier observed rate of rise in the reservoir 2)Actions:- i) Read change in storage. Flow rate from Plate-2 or Table no.3 corresponding to current elevation of 46.00m and rise/fall rate of 0.30m/hr @ 10:00hr is 240 m3/s. ii) Now inflow rate on average can be found out by using the following storage equation I – O = ∆ S ∆ S +ve for Rise Where, I = Average Inflow rate I = ∆ S + O --ve for Fall O= Average Outflow rate = 240 + Nil = 240 m 3 /s Therefore, average Inflow rate during 10:00hr to 10:30 hr =240 m 3 /s. Therefore from Plate-1 or Table no.2 release 240m 3 /s with 15cm by partial opening of all gates if conservation of storage is not required.

73. CASE-II Observations: Reservoir level @ 12:00hr 47.00m Reservoir level @ 12:30hr 47.60m Therefore, rate of rise is (47.60 – 47.00) / 0.5hr = 1.20m/hr (120cm/hr.) Outflow released between 12:00 to 12:30 hr =500 m 3 /s From Plate-2 or Table no.3, flow rate corresponding to RL 47.00m and rise/fall rate of 1.20m/hr is read as 1150 m 3 /s. So, by equation I = ∆S + O (Where O is the average outflow rate) = 1150+500 = 1650m 3 /s Therefore average inflow rate between 12:00 to 12:30 hr = 1650m 3 /s 8.1.0 Release outflow as shown in Plate-1 corresponding to inflow rate worked out. To release Q = 1650m 3/ s , open all gates, if conservation of storage is not required. 8.2.0 When water level starts to decrease after peak inflow, then flood is on recession and therefore decrease outflow gradual say at an interval of 1hr to 2hr and allow water level to decrease up to rule level prescribed, but not below the Rule curve level. 8.3.0 Close all the gates where inflow rate under observation become equal to base flow rate and ensure that no successive flood is incoming in to reservoir.

75. THANKS