. Railroad structures and estimates . ^. SECTION L n CONCRETE BASE ^ PLAN Fig. 19. Bridge Piers. TABLE 42. — APPROXIMATE CUBIC YARDS IN ONE PIER. (Fig. 19.) Width of piers. (Foi girders 13-foot centers or less.) Total height. B. 10 14 18 22 26 30 34 38 42 46 50 54 .58 ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. Ft. In. 4 0 39 56 74 93 114 137 161 186 214 243 274 306 340 4 6 45 64 84 105 129 155 180 208 238 269 304 338 376 5 0 50 71 93 118 143 171 200 231 263 298 334 371 412 5 6 56 79 104 131 159 189 220 254 289 326 365 406 449 6 0 62 88 115 144 175 207 242 278 317 358 399 443 489 6 6 6
. Railroad structures and estimates . ^. SECTION L n CONCRETE BASE ^ PLAN Fig. 19. Bridge Piers. TABLE 42. — APPROXIMATE CUBIC YARDS IN ONE PIER. (Fig. 19.) Width of piers. (Foi girders 13-foot centers or less.) Total height. B. 10 14 18 22 26 30 34 38 42 46 50 54 .58 ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. Ft. In. 4 0 39 56 74 93 114 137 161 186 214 243 274 306 340 4 6 45 64 84 105 129 155 180 208 238 269 304 338 376 5 0 50 71 93 118 143 171 200 231 263 298 334 371 412 5 6 56 79 104 131 159 189 220 254 289 326 365 406 449 6 0 62 88 115 144 175 207 242 278 317 358 399 443 489 6 6 68 96 126 158 191 227 264 303 344 387 433 480 529 7 0 75 106 138 172 209 247 287 329 373 420 467 518 570 7 6 81 115 150 187 226 267 310 355 403 454 504 558 614 8 0 ■88 124 165 203 245 289 335 383 434 486 541 598 657 TABLE 43. — APPROXIMATE CUBIC YARDS IX ONE PIER. (Fig. 19.) Width of piera. (For girders over 13-foot centers up to 20-foot centers.) Total height • B. 10 14 18 22 26 30 34 38 42 46 50 54 58 ft. ft. ft. ft. ft. ft. ft
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