To Improve the Baltimore Water.
George T. Kenly would improve the water supply of Baltimore by utilising lock Raven. He would restore the lock to its original capacity and build a jetty or diverting dam above the present dam to prevent silting. That dam would comply with the provision of the enabling act and would also divert the stream during floods into an open condut built along the east side of and parallel to the river from the dam to a point below the present lock Raven dam. This secondary dam may not be over 3 ft. above the present water-level of the lock. The lock will be restored and the flow of the river unimpaired, and thus the entire flow will be handled to the best advantage. By using the present conduit connecting that lock with lake Montebello, in its full capacity of 170,000,000 gal. per day and installing the necessary pumps, the middle service can be supplied with Gunpowder water at a cost far below that of supplying it by gravity and with another storage-reservoir iii the Herring run valley, the water system will be made very complete in all its details at a cost of about $1,500,000. ‘ D. G. Adelberger, an hydraulic engineer, would also improve lock Raven and build storage-reservoirs on the hills west of the city. He w’ottld build round it on the east side a channel wide enough to let all flood-water pass by, by taking the shallow part of the present dam and cutting off the projecting hills: This would give rock enough for a dyke to make a clear water dam and the channel wall, the dyke to be built up the stream where a new lO-ft.-high dam w’ould be constructed, with flood and clear-water gates and spillway by which all the floodborne sediment would escape. The gates would then be closed and the clear-water gates opened. Thus some of the $5,000,000 loan would be left to build big storage reservoirs.