Water Power Plant at Quincy.
The Keokuk and Hamilton Power Company, of Quincy, Ill., has perfected a plan for water improvements of considerable magnitude and commercial importance to this section of the country. The company intends to develop the power of the Des Moines rapids of the Mississippi river at Keokuk, Ia., and Hamilton, Ill. It will construct a dam across the river at the foot of the rapids, and a powerhouse immediately below the dam and parallel with the stream on the Keokuk side. The dam, including abutments, will be 4,700 feet long, or seven-eighths of a mile, On top of the spillway will be placed 116-foot flood gates, supported by concrete piers. These piers will be built integral with the dam, being carried down to bedrock. The piers will support an arched bridge, from which the gates will be operated by electric hoists. The dam will be constructed entirely of concrete and locked firmly into the rockbed of the river. The powerhouse will be 1,400 feet long and 123 feet wide. The substructure will be concrete, in which will be molded the water passages and water wheel chambers. On top of this will be built the superstructure—a house of concrete, brick and steel 133 feet high. There will be thirty power generating units, each of which will have its own speed governor and auxiliary apparatus. In place of the old Des Moines rapid canal will be substituted a lake of deep water over a mile wide and forty miles long, which will usher in a new era of navigable activity. A large dry dock will be built for the construction of which 500,000 cubic yards of masonry, 500,000 barrels of cement and 7,000 tons of steel will be required. There will be developed and for sale 200,000 electrical horsepower. The machinery will be capable of developing 250,000 mechanical horsepower. The first long distance transmission line will be run to St. Louis. As the power market develops transmission lines will be run in other directions, radiating from Keokuk and Hamilton.