CHAPTER VI. 



1. TOMBIGBEE RIVER AT COLUMBUS, MISSISSIPPI. 



This station is located about 1,000 feet below the highway 

 bridge, \ l / 2 miles from the Southern Railway depot at Colum- 

 bus. The rod, which is in three sections, is fastened vertically 

 to the rock bluff on the left bank. It is a 3-inch by lo-inch 

 pine timber 45 feet long, marked with brass figures and copper 

 nails, the graduation extending frcm 5.0 feet to +40.0 feet. 

 The initial point of sounding is the end of the iron bridge, right 

 bank, downstream side. Bench mark No. i is 250 feet from the 

 initial point of sounding. The bridge floor is 40.85 feet above 

 the zero of the red, and the top of the iron girder under the floor 

 timbers is 39.85 feet above the zero. Bench mark No. 2 is the 

 top of the rail at the depot of the Southern Railway, and is 55.2 

 feet above gage datum and 190.9 feet above mean sea level. 

 The width of the river at low water is 160 feet. The maximum 

 record height of the river was on April 8, 1892, when the gage 

 registered 42 feet. The lowest recorded height was on October 

 26, 1893, when the gage reading was 3.9 feet. The danger 

 line is at 33 feet. No measurements of discharge were made 

 during 1900. 

 Daily gage height in feet of Tombigbee River at Columbus, Miss., for 



