REPORT ON PROGRESS IN THE CONSTRUC- 

 TION OF THE NEW POND-FISH 

 HATCHERY IN KANSAS 



By L. L. Dyche 



The contract for building the new and improved fish 

 hatchery, at Pratt, Kan., was let to James R. Green & 

 Company, Ltd., of Chicago, September 21, 1911. The fol- 

 lowing include the chief items in the construction of this 

 hatchery, namely: 



A concrete dam 500 feet in length, with an earth em- 

 bankment extension of 200 feet built over piling. A con- 

 crete intake chamber with bronze and iron gates and other 

 appurtenances for controlling the water. A water supply 

 conduit of 21-inch vitrified clay pipe, 6,875 in length, 

 with manholes and other structures. Approximately 147,- 

 000 cubic yards of levee embankment. Approximately 1,000 

 feet of 12-inch, 6.000 feet of 10-inch, and 15,000 of 8-inch 

 vitrified clay pipe laid in trenches from 3 to 11 feet in 

 depth. 



There are 105 concrete structures and water transmitters 

 with 197 bronze and iron sluice gates, mostly 8-inch, and 

 five cast iron flood gates. There are 350 wire mesh screens 

 30x36 inches. These screens were made by fastening wire 

 mesh screening by the use of copper wire on frames made 

 of % inch standard galvanized steel pipe. 



The 83 new ponds now being added to the eleven in the 

 old hatchery will make 94 available for immediate use. 

 Plans are drawn for the addition of 17 more ponds. These 

 ponds extend over a strip of ground one-quarter mile wide, 

 and one mile in length. They will average about one acre 

 each in surface area and will furnish something like 15 

 miles of shore line for old fish to breed on, and young fish to 

 feed on. 



