Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 458
ith plank on a slope ofabout 2^ to 1 from the crest downward. From the decay and weakening of thetimbers of the old dam, continual repairs have been required, and it is now de-cided to put in a masonry dam, the wooden dam having served its purpose forsome fifty years. Fig. 1045 is a section of the… … Fig. 1045. cut stone, extending by a timber-apron some 50 feet, supported by strong crib-work. Originally there was a small supplementary dam farther down to set thewater back on to tlie crib-apron, but this was washed out, and the crib-w^ork isreplaced by heavy rock pave. In the erection of this…
Mechanical drawing
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