Amount (estimated) required to be appropriated for completion of existing project Amount that can be profitably expended in fiscal year ending June 30, 1947: For new work' For maintenance 4 Exclusive of available funds. 22, 290, 100. 00 5, 127, 500. 00 3, 534, 000. 00 8, 661, 500.00 IMPROVEMENT OF RIVERS AND HARBORS IN THE ROCK ISLAND, ILL., DISTRICT This district comprises portions of western Illinois, southwestern Wisconsin, southern and southwestern Minnesota, eastern and central Iowa, and northeastern Missouri, embraced in the drainage basin of the Mississippi River and its eastern and western tributaries between mile 300 (above the mouth of the Ohio River) and mile 614, and of its eastern tributaries only, between Hamburg Bay, at mile 261, and mile 300. This district also includes the Illinois and Mississippi Canal and the drainage basin of Bureau Creek, Ill. That section of the Mississippi River between mile 300 and mile 614 is included in the report on Mississippi River between Missouri River and Minneapolis, Minn. District engineer: Lt. Col. John H. Peil, Corps of Engineers. Division engineer: Col. Malcolm Elliott, Corps of Engineers. 1. MISSISSIPPI RIVER BETWEEN THE MISSOURI RIVER AND MINNEAPOLIS, MINN. (ROCK ISLAND DISTRICT) For report on this improvement see page 1255. 2. ILLINOIS AND MISSISSIPPI CANAL, ILL. Location. This canal connects the Illinois and Mississippi Rivers, proceeding from a point on the Illinois River about 12 miles from La Salle across the State of Illinois to the Mississippi River at the mouth of Rock River. Existing project.-This provides for the construction of a canal from the Illinois River, near Bureau Junction, running westerly via the Bureau Creek Valley to Rock River, near Colona, thence in the bed of Rock River to the rapids near Milan, Ill., and thence to the Mississippi River at the mouth of Rock River, at Rock Island, the length of the main line being 75 miles. The feeder, 29.3 miles in length, extends from Rock Falls on Rock River to the summit level of the canal, about 28 miles from the Illinois River. There are 32 locks in the main canal, described in the following tabulation. There is also a lock and controlling works at the head of the feeder at Rock Falls, and a lock in Rock River at Rock Falls connecting the pool of the Government dam with the power company's dam below. This lock has dimensions similar to those in the main canal and cost $75,000. The estimate of cost for new work, revised in 1902, was $8,911,551.12. The estimated cost of operation and maintenance, made in 1936, is $176,000 annually. The existing project was authorized by the following river and harbor acts: The latest published map is shown on page 2013 of Annual Re port for 1908. Table showing features of the Illinois and Mississippi Canal-Continued Excavations, embankments, clearing, fences, etc. Surveys, flowage, and right-of-way Contribution to Mud Creek special drainage district-Dredging Rock River pool-Dredging, removing snags and stumps, etc. Contributions to State of Illinois-Relocation and reconstruction of highway bridge at Wyanet, Ill. Miscellaneous Total additional features Total cost of project 1 Feeder section. 2 Variable. Oct. 24, 1907 do. do.. $4), 428.75 do. 37, 262. 65 do. 71, 588. 00 do. 38, 711. 44 do. 85, 468. 31 Rock River lock is on Rock River at Rock Falls, Ill. It is located in the south end of the Sterling Dam and about 600 feet below the guard lock of the Illinois and Mississippi Canal (feeder section). NOTE. There are no dams except at the guard lock and lock 30. At the former locality there is a fixed dam across the Rock River, with a movable crest constructed of wood, concrete, and steel: at lock 30 there are crib dams across the north and south channels of Rock River. The north dam has a 60-foot opening and has been superseded by a concrete power dam a short distance below: the south dam adjoining lock 30 has been reinforced with concrete laid in the water. |