| OCR Text |
Show 6128 4128 station 325 and 360. In other, this chart ( indicating) shows the rapidi-ty of the amount of scour and fill taking place in the Colo-rado River at Lees Ferry, as shown by actual measurements made. By Mr. Blackmar: Q Now, in a similar way, can you take the other gaging stations? A Similar characteristic information is shown for each of the gaging stations on plates 1- A, 2- A, 3- A, 4- A, 5- A, Before we leave Lees Ferry, Plate 3- A shows the rapidity with which changes may take place, as shown by five measurement made May 2, 1927, May 3, 4, 5, and 7, showing the scour and fill in a period of three or four days; the station at 250 having a scour of five feet during that period; the station at 340 feet, the maximum change was only a foot, indicating at that particular place in the cross- section that there was only a change of foot during that period, while at station 460 there was a scour of approximately four feet during that period. The plate shows the rapidity in which the bed of the river changes, and gives some idea of the magnitude |
