The Minnesota River, 450 miles long, is to have an open channel to accommodate vessels of four-foot draft from its mouth at Saint Paul to Shakopee., a distance of 256 miles.
Lake Traverse, one of the sources of the Red River of the North, is 25 miles long and through its narrows is to have a channel 50 feet wide and four feet deep.
The Red River of the North flows northerly between Minnesota and North Dakota about 350 miles and thence along the International bound ary and thence into Lake Winnipeg. From Breckenridge to Moorhead, a distance of 97 miles, it is to have a navigable channel during high and medium stages of water; from Moor head Grand Forks, a distance of 155 miles, it is to have a channel 50 feet wide and three feetd and from Grand Forks to the Inter a distance of 1431,4 miles, it is to have a channel 60 feet wide and four feet deep at low water. Red Lake River be taeen Thief River Falls and Red Lake, a dis tarxe of 71 miles, is to have a channel of three feet depth. Regulating works arc being con structed at the outlet of that lake to control its dlscharge and the flow of the river in the in terest of navigation. \1'arroad Harbor and Warroad River are southwest of the Lake of the Woods. The harbor has a wharf open to the public and the river, 26 miles long. con necting the harbor with the lake, has a depth of eight feet. In 1917 the tonnage of the harbor was 8.500 tons. A harbor of refuge has been constructed in Zipocl flay on the south shore of die Lake of the Woods The Missouri River from its mouth to Kansas City, a distance of 398 miles, is to have a permanent channel six feet deep and 1,200 feet wide, though in 1917 the draft of steamers was three and one-half feet and that of barges from four to four and one-half feet, but in low water it was from three to three and one-half feet. From Kansas City to Sioux City, Iowa, a dis tance of 409 miles, in 1917. it had a channel four feet deep, though the loaded draft of boats did not exceed two and one-half feet. From Sioux Citz to Fort Benton, Mont., the head of navigation, a distance of 671 miles, loaded vessels bad an average draft of two feet in the upper reaches of that section of the river. The lower reaches of the Osage River from its out let into the Missouri up to Linn Creek, a dis tance of 109 miles, are to have an open channel 80 feet wide and three feet deep. A lock 220 feet long and 42 feet wide with an available depth of nine feet of water over the mitre sills and with a lift of 16 feet has been constructed seven miles above its mouth. That has made the lower 109-mile section navigable for light draft vessels. In 1917 its commerce was 28,171 tons.
The Gasconade River is being cleared of ob structions from its mouth to Gascondy, a dis tance of 61.4 miles. It had in 1917 a channel of only nine inches navigable depth in some sections and two feet in others. It had a score of small warehouses in the lower 3914 miles of its course and a tonnage in 1')17 of 24,523 tons.
The Cumberland River in Tennessee and Kentucky has been improved from Burnside, the had of navigation, to its month, a distance of 418.7 miles. That has been done by dredging and by the construction of locks and dams in its several sections. The average width be tween Burnside and Nashville, 3261 miles below, is 300 feet and from Nashville to its outlet into the Ohio River, a distance of 1926 miles, it has a width of 400 to 500 feet. The channel between Burnside and Nashville is 150 feet wide and six feet deep at low water. There are six locks and darns in that section of the river below Nash ville. Locks A, B and C are 280 feet long by 52 feet wide, with six feet of water over the mitre sills, and have lifts of 12 feet. Locks E and F are 310 feet long and 52 feet wide with six and one-half feet of water over the mitre sills and have lifts of 10 to 13.3 feet. These have made the lower Cumberland navigable to Nash ville and its tonnage in 1917 was 131,325 tons. In the section above Nashville, the river is navigable for light draft vessels for four or five months in the year during high water. Above Nashville are locks 1, 2, 3, 4, 5 6, 7 and 21 (locks 8 to 20 and 22 proposed in the original plans having been eliminated), each 280 feet long and 52 feet wide with six and one half feet of water over the mitre sills and with lifts of six to 14 feet. These struc tures set the water hack su that a navigable depth of six feet will be provided within four miles of Burnside and over that distance a navigable channel of four feet depth will be obtained. The total water-borne commerce at Nashville in 1917 was 267,001 tons. That undoubtedly material!) lifter die im provement has been comp, rid boat lines arc established. The ' zinecrs of the United States army have recommended the struction of 10 additional locks, !lynch- eight to 17 as originally planned, that the States, counties and local agencies will save the United States harmless from claims for dam ages due to overflowing lands along that sec tion of the river. The total commerce passing through all the locks in 1917 was 683,529 tons.