22. SNAGGING AND CLEARING UNDER AUTHORITY OF SECTION 2 OF FLOOD CONTROL ACT APPROVED AUGUST 28, 1937, AS AMENDED The Flood Control Act approved August 28, 1937, as amended, authorized the allotment of not to exceed $1,000,000 from the flood control appropriation for any one fiscal year in the removal of accumulated snags and other debris from, and the clearing and straightening of channels in navigable streams and tributaries thereof when such work is advisable in the interest of flood control. Operations during the fiscal year consisted of removal and disposal of earth, trees and debris, by hired labor from Whittlesey Creek in Bayfield County, Wis. The costs and expenditures were $7,500. No work is scheduled for the fiscal years 1951 and 1952. 23. PRELIMINARY EXAMINATIONS, SURVEYS, AND The total cost of work during the fiscal year was $36,807.37, and the expenditures were $35,232.15. The balance unexpended at the end of the fiscal year amounting to $13,141.05, will be applied as needed during the fiscal year 1951 to payment of expenses incurred under this heading and to payment of $3,020.99 accounts payable on June 30, 1950. The additional sum of $2,000 can be profitably expended during fiscal year 1952. Status of all investigations for flood control called for by flood control acts and committee resolutions Ashland, Bayfield, or Douglas Counties, Wisc., all streams and rivers and tributaries thereof flowing into Superior Lake. Bad River, Wis., flood protection at Odanah, Wis. Bayfield, Ashland or Douglas Bull Dog Creek and Warroad Douglas, Ashland, or Bayfield Rainy River, Minn., for naviga- IMPROVEMENT OF RIVERS AND HARBORS IN THE MILWAUKEE, WIS., DISTRICT This district comprises eastern Wisconsin, the southern central portion of the Upper Peninsula of Michigan, the western half of the Lower, or southern, Peninsula, and a small portion of northern Indiana, embracing Lake Michigan and its tributary drainage basins west of the Straits of Mackinac, exclusive of those between the southern boundary of Wisconsin and the drainage basin of St. Joseph River, Mich. and Ind. District engineer: Col. J. O. Colonna, Corps of Engineers to September 30, 1949; Col. D. A. Morris, Corps of Engineers, acting district engineer October 1, 1949, to May 14, 1950, and district engineer since that date. Division engineer of the Great Lakes Division, Chicago, Ill., comprising the Duluth, Minn., Milwaukee, Wis., Chicago, Ill., Detroit Mich., and Buffalo, N. Y., districts: Col. D. O. Elliott, Corps of Engineers, to July 31, 1949; Col. J. R. Hardin, Corps of Engineers, since that date. IMPROVEMENTS Navigation 1. Manistique Harbor, Mich.. 8. Harbors at Washington 9. Sturgeon Bay and Lake 10. Algoma Harbor, Wis... 16. Milwaukee Harbor, Wis... Kalamazoo River, Mich.. 2046 2074 2074 2077 1. MANISTIQUE HARBOR, MICH. Location. This harbor is on the north shore of Lake Michigan, about 135 miles northeasterly from Green Bay Harbor and 220 miles northerly from Milwaukee. (See U. S. Lake Survey Chart No. 701.) Previous projects.-Adopted by River and Harbor Act of June 14, 1880. For further details see page 1933 of Annual Report for 1915 and page 1422 of Annual Report for 1938. Existing project. This provides for two breakwaters extending from the shore on either side of the mouth of the Manistique River, 1,744 feet and 1,480 feet in length for the east and west breakwaters, respectively, and for a pier 375 feet long on the west side at the river mouth. It further provides for a channel through the outer basin, 19 feet deep from that depth in the lake to a point about 300 feet inside the entrance, thence 18 feet to a point about 1,150 feet upstream from the mouth of the river, and thence 18 feet, except where rock is encountered at less depth, for a further distance of about 500 feet, with widths of 276 feet at the breakwater entrance, increasing to 475 feet through the outer basin, decreasing to 215 feet at the river mouth, thence varying from 180 feet to 325 feet at the upper limit; the total length of channel being about 4,100 feet. The breakwaters are formed of stone-filled piling and timber cribs, capped with concrete superstructure; the west pier is formed of stone-filled plank cribs. The project depth is referred to low-water datum for Lake Michigan, which is 578.5 feet above mean tide at New York. The fluctuations of water level are seasonal changes of about one-half foot above or below the annual mean stage and extreme fluctuations of a temporary nature, due to wind and barometric pressure, of about 12 feet above or below the mean lake level prevailing at the time. The estimate of cost for new work, revised in 1950, was $651,800, exclusive of amounts expended on previous projects. The latest (1950) approved estimate for annual cost of maintenance is $30,500. The existing project was authorized by the following river and harbor acts: Local cooperation. The act of May 17, 1950, provided that responsible local agencies shall furnish assurances satisfactory to the Secretary of the Army that they will hold and save the United States free from damage due to the construction work and |