. Railroad structures and estimates . Kg. 90a. Fig. Wig. 90c Water Tacks. TANKS. 199 TABLE 49. — APPROXIMATE COST OF WATER TANKS COMPLETE;TOWERS 20 FEET HIGH FROM RAIL TO TANK FLOOR. FOR Approximate Height Diameter capacity in tank gallons. staves. Ft. Ft. 10,000 10 14* 20,000 12 18 30,000 14 21 40,000 16 22 50,000 16 25 60,000 16 27 Enclosed tanks, wood. Fig. 90c. 51800-21002300-28003300-38004300-4800 Semi-enclosed, 90a. $1000-12001200-15001500-18001800-22002600-30003500-3800 Semi-enclosed, 90b. $1500-17002200-26003000-35003800-4300 Note.—In the above cost no allowance is
. Railroad structures and estimates . Kg. 90a. Fig. Wig. 90c Water Tacks. TANKS. 199 TABLE 49. — APPROXIMATE COST OF WATER TANKS COMPLETE;TOWERS 20 FEET HIGH FROM RAIL TO TANK FLOOR. FOR Approximate Height Diameter capacity in tank gallons. staves. Ft. Ft. 10,000 10 14* 20,000 12 18 30,000 14 21 40,000 16 22 50,000 16 25 60,000 16 27 Enclosed tanks, wood. Fig. 90c. 51800-21002300-28003300-38004300-4800 Semi-enclosed, 90a. $1000-12001200-15001500-18001800-22002600-30003500-3800 Semi-enclosed, 90b. $1500-17002200-26003000-35003800-4300 Note.—In the above cost no allowance is made for supply pipes, waste and drainage;these generally are included in the estimate of water supply. For cost of pump, boilers, etc., see page brief description of a 40,000-gallon enclosed water tank(Fig. 90c) is as follows: — Foundations. — Masonry or concrete piers under each post,1 foot 6 inches square at top and 4 feet square at bottom, depth5 feet. The piers of the outer posts are extended to catch thefoundation sills of the
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