Texas Water Development Board Reservoir Volume Table Lake Halbert Survey Conducted February 1999. Data obtained from TWDB Report: Volumetric Survey of Lake Halbert September 1997 Elevation in Feet Volume in Acre-Feet .0 .1 .2 .3 .4 .5 .6 .7 .8 .9 343 0 0 0 0 0 0 0 0 0 344 0 0 0 0 0 0 0 0 0 1 345 1 1 1 1 1 1 1 2 2 2 346 2 2 2 3 3 3 3 4 4 4 347 5 5 5 6 6 7 7 8 9 11 348 12 14 16 18 21 23 26 29 32 36 349 40 44 49 54 59 64 70 76 82 88 350 95 102 110 118 126 135 144 154 164 174 351 185 197 208 220 232 245 258 271 284 298 352 312 326 341 356 371 386 402 418 434 450 353 466 483 500 518 536 554 572 590 609 627 354 647 666 685 705 725 746 766 787 808 829 355 851 873 895 917 939 962 985 1008 1032 1055 356 1079 1103 1127 1152 1177 1202 1227 1252 1278 1304 357 1330 1356 1383 1409 1436 1463 1491 1518 1546 1575 358 1603 1632 1661 1690 1720 1750 1780 1811 1842 1873 359 1904 1936 1969 2001 2034 2068 2101 2135 2169 2203 360 2238 2273 2308 2343 2379 2415 2451 2488 2525 2562 361 2600 2638 2676 2715 2755 2794 2834 2875 2916 2957 362 2999 3041 3083 3126 3170 3214 3258 3302 3347 3392 363 3437 3483 3529 3575 3622 3669 3716 3763 3811 3859 364 3907 3956 4004 4053 4103 4152 4202 4252 4302 4353 365 4404 4455 4506 4557 4609 4661 4713 4765 4818 4871 366 4924 4977 5030 5084 5138 5192 5247 5301 5356 5411 367 5467 5522 5578 5634 5690 5747 5804 5861 5918 5975 368 6033