PUBLIC LAW 101-640—NOV. 28, 1990 104 STAT. 4621 (13) NORFOLK HARBOR, VIRGINIA.— The project for deepening of 3 navigation anchorages at Norfolk Harbor, Virginia, authorized by section 301 of the River and Harbor Act of 1965 (79 Stat. 1090). (b) LIMITATION. — A project described in subsection (a) shall not be authorized for construction after the last day of the 5-year period that begins on the date of the enactment of this Act unless, during such period, funds have been obligated for the construction (including planning and design) of the project. (c) FREEPORT, ILLINOIS.—The project for flood control, Freeport, Illinois, authorized by section 5 of the Flood Control Act of June 22, 1936 (49 Stat. 1586), and deauthorized by section 1002 of the Water Resources Development Act of 1986 (100 Stat. 4208), is authorized to be carried out by the Secretary. SEC. 108. HAZARD, KENTUCKY. The Secretary is authorized and directed to design and construct such flood control measures at or in the vicinity of Hazard, Kentucky, on the North Fork of the Kentucky River as the Secretary determines necessary and appropriate to afford the city of Hazard, Kentucky, and its immediate environs a level of protection against flooding at least sufficient to prevent any future losses to such city from the likelihood of flooding such as occurred in January 1957, at a total cost of $30,000,000. With respect to such project. Congress finds that the benefits determined in accordance with section 209 of the Flood Control Act of 1970 and attributable to the flood measures authorized for such project exceed the cost of such measures. SEC. 109. SAUK LAKE, MINNESOTA. The Secretary shall complete the project for removal of silt and aquatic weeds, Sauk Lake, Minnesota, authorized by section 602 of the Water Resources Development Act of 1986 (100 Stat. 4148), including acquisition of weed harvesting equipment using funds appropriated by Congress for such purpose, and shall carry out measures to protect and enhance water quality, including implementation of best management practices in the drainage basin. SEC. 110. REHABILITATION OF FEDERAL FLOOD CONTROL LEVEES. (a) PROJECTS.— The Secretary shall undertake— (1) projects for rehabilitation and reconstruction of Federal flood control levees on the Arkansas River, Arkansas and Oklahoma, substantially in accordance with the Little Rock District Engineer's Arkansas River Basin, Arkansas and Oklahoma, Draft Feasibility Report, dated March 1990, and the Tulsa District Engineer's Keystone to Tulsa Reconnaissance Report, dated September 1989; and (2) projects for rehabilitation and reconstruction of Federal flood control levees on the Red River, Oklahoma and Arkansas, below Denison Dam. (b) PURPOSE OF PROJECTS.—The purpose of projects under this section shall be to make the levees comply with current Federal design standards. (c) INCLUDED FEATURES.— The projects under this section shall include repairs of design deficiencies and replacement of deteriorated drainage structures and other appurtenances. Flood control. Arkansas. Oklahoma.