Proceedings of Seventh Annual Meeting 39 



In addition to the above, the commission with its own forces cleaned 

 about 80,000 feet of ditches during March, April and May. 



The 12-inch electric pump, located on the east side of Frank Creek, 

 and the new 6-inch electric pump, installed last winter on the west 

 side of the creek, opposite the larger one, were started early in March 

 and operated throughout the season. 



A concrete block house, 20 feet 3 inches long and 12 feet wide, 

 was constructed for the 12-inch pump, replacing the old corrugated 

 iron shed previously used, and a similar concrete house, 12 feet 9 

 inches by 10 feet 6 inches, was constructed for the new 6-inch pump. 

 A concrete sump and run-way, with mud bottom, was provided for 

 the 12-inch pump, 24 feet long by 5 feet wide and 9 feet deep ; 

 a concrete sump 10 feet 6 inches by 5 feet 4 inches and 7 feet 6 

 inches deep, with concrete bottom, also was provided for the 6-inch 

 pump. All of this concrete construction has added to the efficiency 

 in operating the caring for the pumps. They are all of a very sub- 

 stantial order and will outlast the need for which they are required. 



Frank Creek, from the outfall of the concrete flume at Schuyler 

 Avenue to the Harrison Turnpike and the Bergen Avenue, Tappan 

 Street and Duke Street sewers, were cleaned and widened by the 

 Town of Kearny during the season at a cost of $5,600, enhancing 

 greatly the removal of stagnant water from the surrounding 

 meadows. A wooden sluice-gate, referred to in our 1918 report, was 

 installed at the mouth of Saw Mill Creek (Hackensack River) and 

 was put in operation April 18, at a total cost of $2,920.20, which was 

 paid for as per agreement as follows : 



Du Pont de Nemours & Co., one-half, or $1,460.10 



Hudson County Mosquito Extermination Commission, one- 

 fourth, or 730.05 



Bergen County Mosquito Extermination Commission, one- 

 fourth, or 730.05 



This improvement affects favorably about 1,200 acres of swamp- 

 land in Hudson County, and about 1,600 acres in Bergen County, 

 and was designed and constructed under the supervision of Mr. Beck- 

 with of Dr. Headlee's staff. In order to take advantage of this 

 improvement, it was found necessary to establish a new outlet for 

 the southeastern section of the area farthest removed from the gate, 

 in part of which is located the Arlington Works of the Du Pont 

 Company. This was found necessary on account of the poor condi- 

 tion of the northwestern end of the Saw Mill Creek channel. By 



