120 GEOLOGICAL SURVEY OF ALABAMA. 



2. BLACK WARRIOR RIVER NEAR CORDOVA, ALABAMA. 



This station is located at the Kansas City, Memphis & Bir- 

 mingham Railroad bridge, three-fourths of a mile from Cor- 

 dova, Alabama. The gage was established by the United States 

 Weather Bureau, but the records were discontinued by that 

 bureau some time ago. 'From 12 to 55 feet the gage is a verti- 

 cal timber bolted to the inside of the bridge pier on the left bank 

 of the river. Below 12 feet the gage was sloping, but it was 

 out of position, and could not be used when the station was es- 

 tablished by the Geological Survey on May 21, 1900, so a short 

 new section was put in at that time. This section is a 2-inch 

 by lo-inch plank, graduated to feet and tenths, marked with 

 nails from 1.5 feet to -(-12.5 feet, and spiked to a willow tree 

 on the right bank of the river about 200 feet below the bridge. 

 The bench mark is the top of the stone pier on the left bank, 

 and is 54.95 feet above the zero of the gage. Measurements are 

 made from the railroad bridge, which is a single-span, iron, 

 through bridge 300 feet long. The section is a good one. The 

 observer is A. B. Logan, who lives on the right bank of the 

 river, only a few hundred feet from the end of the bridge. Dur- 

 ing 1900 measurement was made by Max Hall as follows : 



Daily gage height, in feet, of Black Warrior River near Cordova, 

 Alabama, for 1900. 



