DRAINAGE OF JEFFERSON COUNTY, TEXAS. 25 
by ail eminent ib-m of contracting mechanical engineers for engines, 
pumps, and foundations, plus estimates for the buildings. It is 
possible that actual costs -may vary considerably from those giv(^n. 
The annual costs of operation given include fuel, repairs, engineer's 
salary, and depreciation. A table prepared by the above-mentioned 
engineers showing comparative fuel costs of several different types 
of pumping plants was used in estimating the cost of fuel oil for 
each district. 
The cost of legal, engineering, and incidental expenses was esti- 
mated at 10 per cent of the cost of construction. 
COST BY DISTRICTS. 
Drainage district No. 1: 
Clearing right of way, 158 acres in woods, at $50 per acre $7, 900 
Excavation — 
t 65, 500 cubic yards, at 8 cents per yard 5, 240 
129,900 cubic yards, at 10 cents per yard 12, 990 
Improving Pine Island Bayou 1, 605 
Bridges, etc. , 1 railroad bridge, 60 feet 2, 850 
Engineering and legal expenses, 10 per cent 3, 058 
Total 33, 643 
Acres benefited in district, 5,790. 
Average cost per acre, $5.80. 
Drainage district No. 2: 
Clearing right of way, 146 acres in woods, at $50 per acre 7, 300 
Excavation — 
173,600 cubic yards, at 8 cents per yard 13, 888 
352,650 cubic yards, at 10 cents per yard 35, 265 
Impro\dng Pine Island Bayou 3, 870 
Bridges, etc., 2 bridges, 8 culverts 5, 650 
Engineering and legal expenses, 10 per cent 6, 597 
Total 72, 570 
Acres benefited in district, 13,980. 
Average cost per acre, $5.20. 
Drainage district No. 3: 
(Plans by private engineers; construction work completed.) 
Drainage district No. 4: 
Clearing right of way, 190 acres in woods, at $50 per acre 9, 500 
Excavation — 
138,050 cubic yards, at 8 cents per yard 11, 044 
623,300 cubic yards, at 10 cents per yard 62, 330 
Impro\'ing Pine Island Bayou 5, 325 
Bridges, etc., 1 bridge, 14 culverts, 3 flumes 10, 575 
Engineering and legal expenses, 10 per cent 9, 875 
Total - - - 108, 652 
Acres benefited in district, 19,200. 
Average cost per acre, $5.65. 
