THE NEW BRAINERD DAM.
At Brainerd, Minn., a dam was recently built by the Mississippi Water Power and Boom Company, at a cost of $150,000, which affords the best boomage and power on the Mississippi river, the power being 25,000 horse, with a twenty-five foot head of water. The river at the point where the dam is built is 270 feet wide, with high banks on either side of from fifty-five to eighty feet, the bed of the river being solid clay. To get the foundation necessary the bed of the river for 100 feet up and down the stream was driven full of oak piling seven feet apart each way, the interstices filled with rock. These piles are sawed off two feet below the water and heavy timbers, securely fastened by heavy drift bolts, form the framework of the dam. The superstructure of the dam is built upon this massive foundation. In the building of the structure were used 2,500,000 feet of pine, So,000 feet of oak, too tons of iron and 3000 cords of stone. Above the dam for 100 feet a solid bank of sand and earth has been graded into the river. This barrier rises to within two feet of the top of the dam and slopes off up stream. The flume is 60 x 500 feet and has five massive gates. A fifty foot sluiceway for logs has been provided.