User:JohnsHopkins1837/sandbox

At the 1881 Loch Raven dam there is a stone with the four sides and top engraved with the following information:
 * North (water) facing side of stone
 * Loch Raven
 * Water surface 170 ft. A.M.T. [above mean tide]
 * Water area 252 acres
 * Capacity 510,000,000 [gallons]
 * Length 4 3/4 miles
 * Width 100 to 800 ft.
 * Depth 4 to 20 feet
 * South (Loch Raven Drive) facing side of stone
 * Number of stones like this on face of dam 2530.
 * From Beaver Dam Marble Quarry Baltimore County MD.
 * Each stone averaging one perch [24 3/4 cubic feet].
 * Total number of perches in dam 20376.
 * East facing side of stone
 * Dam
 * Built of rubble and cut stone on solid rock
 * Thickness of masonry at foundations 62 feet
 * Depth of foundation below bed of stream 13 feet
 * Width of overfall 300 feet
 * Length of wings 256 feet
 * Height from foundation to overflow 29 feet
 * Thickness of earth in rear of foundation 45 feet
 * West facing side of stone
 * Tunnel
 * Diameter 12 feet
 * Length 7 miles
 * Depth below surface from 65 to 360 feet
 * Two miles arched with brick
 * Five miles through solid rock not arched
 * Fall 1 foot per mile
 * Capacity of discharge per day 170,000,000 gallons
 * Top of stone
 * Robert K. Martin Chief Engineer
 * Wm. L. Kenly Prin. Asst. Engineer [William L. Kenly Principal Engineer]
 * Wm. R. Warfield Res. Engineer of the Dam [William R. Warfield Resident Engineer of the Dam]
 * Key stone laid Oct. 6th. 1881 [October 6, 1981]