Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 491
re to be carriage-way, and 25 feet on each side forsidewalk and area, the latter not to exceed 7 feet; one row of trees to be setwithin the sidewalk, about 2 feet from the curb. The best grade is from 1 in 50 to 1 in 100; this gives ample descent for theflow of water in the gutters. Many of our… … Fig. 1121. Inclination. Feet per mile. 1 in 101 111 141 201 29 528462369264 184 Angle. 43 52 Inclination. 1 in1 1 1 1 • 30405057100 Feet per mile. Angle. 176 I 55 132 r 26 106 r 9 92 1° 53 35 The foot-walks in this city and vicinity are generally formed of flags, orwhat is here termed blue-stone,…
Mechanical drawing
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