Show measurements of water second foot 11 is defined by the united states geological survey is 19 in abbreviation for cubic foot per second ind and is the unit for the late of 1 foot per second it is goner il ly used as i a fundamental unit in measurements of stream flow second feet per square mile is the average a n lumber imber of cubic feet of water flowing pei second from each squire square mile of irea area drained on the assumption that the run off is dis uniformly both as ab regards time and area an acre foot I 1 is equivalent to 43 cubic feet and I 1 is the quanta ty required to cover an acie to the depth of 1 toot foot the term is corn conly used in connection with stor age for worl work one second loot toot flow equals 7 48 united states gallons a second 8 gallons a minute or gallons a day As a Call calaria calarma frnia miner minor s inch I 1 canals eau alsO 0 gallons a 1 second there are ire 40 california miner s enebe in 1 I 1 foot |