1. MISSISSIPPI RIVER BETWEEN THE MISSOURI RIVER AND MINNEAPOLIS, MINN. (ROCK ISLAND DISTRICT) For report on this improvement see page 1403. 2. ILLINOIS AND MISSISSIPPI CANAL, ILL. Location. This canal connects the Illinois and the 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, running westerly via the Bureau Creek Valley to Rock River, near Colona, thence in the bed of Rock River to the rapids near Milan, 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 estimated cost of new work, revised in 1902, is $8,911,551.12. The estimated cost for maintenance and operation, revised in 1949, is $264,000 annually. The existing project was authorized by the following river and harbor acts: The latest published map is shown on page 2013 of Annual Report for 1908. Table showing features of the Illinois and Mississippi Canal-Continued LOCKS-Continued Sterling Dam and dams at Milan, Ill. Bridges.. Culverts....... Houses Surveys, flowage, and right-of-way. Excavations, embankments, clearing, fences, etc. ADDITIONAL FEATURES ENTERING INTO COST OF PROJECT Rock River pool-dredging, removing snags and stumps, etc. Contribution to Mud Creek special drainage district-dredging.. Total additional features. Total cost of project.. 1 Feeder Section. Variable. 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). $128, 857.97 1, 513, 823. 25 410, 198. 19 76, 974. 69 726, 656. 61 2,956, 451.61 152,439.58 8,450.75 25, 235.00 223, 622. 78 6, 222, 710. 43 7,605, 143. 41 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. Local cooperation.-Fully complied with. Terminal facilities.-None. Operations and results during fiscal year.-The work performed during the fiscal year consisted of maintenance and operation of the project. Locks, bridges, buildings, canal banks, roadways, telephone lines, and fences were repaired; seep ditches and aqueducts were cleaned out; and brush and weeds were cut and burned along the canal right-of-way, all by hired labor. Maintenance dredging at various locations in the canal was performed by Government plant and hired labor, a total of 14,925 cubic yards of material having been removed. The costs during the fiscal year were $219,612.36 for operating and care. The expenditures were $206,630.38. Condition at end of fiscal year.-The existing project was completed in 1918. All locks, dams, aqueducts, buildings, and other appurtenances are in fair condition. Tabulation under paragraph "Existing project" gives data regarding the principal features of construction. At the end of the fiscal year, the controlling depth in the main canal was 3.5 feet (in Rock River section near Milan), and in the feeder canal was 4 feet. These depths have restricted the use of the canal to lightly loaded barges and to pleasure craft. The bottom width of the canal is 52 feet and the width at water surface is 80 feet, except at aqueducts where the width is 40 feet, and at locks, 35 feet. Since April 29, 1948, in order to maintain the maximum possible service with the limited funds available, the canal has been open to all types of navigation only on Thursday and Friday of each week with prior arrangements being made at least 1 day in advance, and has been open to commercial tows on other weekdays with prior arrangements being made at least 7 days in advance of the date passage is desired. The total cost to June 30, 1949, from regular funds was $9,951,208.27, of which $7,580,143.41 was for new work and $2,371,064.86 was for operating and care. The expenditures were $9,933,835.72. The costs and expenditures from Emergency Relief Funds for removal of snags and stumps in Rock River pool were $25,000, all new work. In addition, the sum of $4,143,282.27 was expended between April 1895 and June 30, 1936, on the operating and care of the works of improvement under the provisions of the permanent indefinite appropriation for such purposes. Proposed operations.-The balance unexpended at the end of the fiscal year, amounting to $36,707.66, plus an allotment during fiscal year 1950 of $200,000.00, a total of $236,707.66, will be applied as follows: The additional sum of $183,000 is needed to be appropriated for the fiscal year 1951, for maintenance (operating and care), with hired labor, comprising operations, ordinary repairs, and improvements and reconstruction. Cost and financial summary Total amount appropriated to June 30, 1949 Cost of new work to June 30, 1949. Cost of maintenance to June 30, 1949. Unobligated balance available, June 30, 1949. Amount appropriated for fiscal year ending June 30, 1950 12 $14,138,825.65 17,605,143.41 26,514,347.13 1 2 14,102,117.99 36,707.66 17,732.74 200,000.00 217,732.74 1 Includes $25,000.00 Emergency Relief funds. Includes costs and expenditures of $4,143,282.27 for Operating and Care under the "Permanent Indefinite Appropriation.' 3. MILL CREEK AND SOUTH SLOUGH AT MILAN, ILL. Location.-Mill Creek empties into South slough about 1 mile east of the town of Milan, Ill., and 6.5 miles above the mouth of South slough, which empties into the Mississippi River. Previous projects.-Adopted by the River and Harbor Act of January 21, 1927. (For further details see p. 1132, Annual Report for 1932, and p. 1081, Annual Report for 1938.) Existing project. This provides for floodgates in the walls of the Illinois and Mississippi Canal, or other devices for carrying the flood waters of Mill Creek across the canal right-of-way into Rock River; for the construction of a levee on the east bank of Mill Creek extending from the Chicago, Rock Island & Pacific Railroad to the canal embankment; for the construction of a levee on the west bank of Mill Creek and its extension in a westerly direction to a connection with Water Street at the point E, shown on map of project document; and for the removal of obstructions in Mill Creek and South slough, at an estimated cost of $87,500 for new work. The estimated cost of maintenance, revised in 1949, is $2,000 annually. The existing project was adopted by the River and Harbor Act approved July 3, 1930 (Rivers and Harbors Committee Doc. 19, 71st Cong., 2d sess.). The latest published map is in the project document. Local cooperation.-Fully complied with. Terminal facilities.-None. Operations and results during fiscal year.-The work performed during the fiscal year consisted of cutting brush and willows on the banks of Mill Creek and South slough, minor dredging and snagging, and operation of spillway gates, by hired labor. The |