. Railroad structures and estimates . 21 S 25 UA 27 £.5 29 31 »9 t *» I -n « -A !-■> « 1- ■* -99 9 ♦i = ■i; t ti n -*- — * ~ * - To find qiantities in a z: wlen dec:li erf high water = :•. widths 8! rht-r = 400. From Table. — In mfctmaun cntwater where F In npBbeam cutwater where F _ .: r^ --W = 2v-3 = 230 . —:- .Thorn cntwate
. Railroad structures and estimates . 21 S 25 UA 27 £.5 29 31 »9 t *» I -n « -A !-■> « 1- ■* -99 9 ♦i = ■i; t ti n -*- — * ~ * - To find qiantities in a z: wlen dec:li erf high water = :•. widths 8! rht-r = 400. From Table. — In mfctmaun cntwater where F In npBbeam cutwater where F _ .: r^ --W = 2v-3 = 230 . —:- .Thorn cntwater = 3S0JX> en. jrd- . = .. .-■;= _,>.7 cu- yd-. =1 ^ L .: .- = 3?.3ca. yd- Intapobtiiig, qnantitjr in desired cur^^^Ter = — -^ X 3 = co. yd. Sbnibily. qiEuititv ::: --^^---^---ti cutwater where F = 3 and C = IC 9 = eu. yd. Total qiBUitity in pier co. yd. QUANTITIES IN BRIDGE PIERS. 93 TABLE 47. — BRIDGE PIERS WITH OR WITHOUT CUTWATERS FOR THROUGH PLATE GIRDERS. Base of Rail. B+6
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