Download or read book Upper Mississippi River Lock Filling and Emptying System Hydraulic Model Investigation written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Navigation improvements including lock extensions are being investigated for several existing projects on the Upper Mississippi River (UMR). A hydraulic model study was conducted to evaluate filling and emptying system design alternatives for the extension of lock No. 22 and lock No. 25. A 1:25 scale model was constructed to determine the range of lock performance for both locks. The filling system flow capacity was not significantly changed from the original non-extended lock design. The filling time for acceptable chamber performance with the 4.57-m (15-ft) lift was 23.1 min. This filling time was achieved with a 23-min valve. The focus of the study was to determine emptying performance for multiple options of emptying gates built in the extended portion of the lock chamber river wall. Several emptying system designs were studied. The type 2 and 3 design provided the best chamber performance during the emptying operation.
Download or read book Modifications to Filling and Emptying System of Lock No 1 Mississippi River Minneapolis Minnesota written by Jackson H. Ables and published by . This book was released on 1979 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modifications to Filling and Emptying System of Lock No 1 Mississippi River Minneapolis Minnesota written by Jackson H. Ables and published by . This book was released on 1979 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Filling and Emptying System New Ship Lock Mississippi River Gulf Outlet Louisiana written by Jackson H. Ables and published by . This book was released on 1978 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MODIFICATION TO FILLING AND EMPTYING SYSTEM OF LOCK NO 1 MISSISSIPPI RIVER MINEAPOLIS MINNESOTA written by JACKSON H. ABLES and published by . This book was released on 1912 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Navigation Conditions at Locks and Dam 26 Mississippi River written by Louis J. Shows and published by . This book was released on 1979 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Filling and Emptying Systems for a Proposed 600 ft Lock at Lock and Dam No 19 Mississippi River Keokuk Iowa written by United States Corps of Engineers and published by . This book was released on 1962 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Filling and Emptying System New Ship Lock Mississippi River Gulf Outlet Louisiana written by Jackson H. Ables and published by . This book was released on 1978 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modifications to Filling and Emptying System of Lock Number 1 Mississippi River Minneapolis Minnesota Hydraulic Model Investigation written by and published by . This book was released on 1979 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The existing locks at Locks and Dam No. 1 were constructed between 1929 and 1932. Problems have been experienced with accumulation of ice and debris at the intakes, air entrapment in the culverts of the filling and emptying system, excessive turbulence in the lock chamber during filling, and hazardous conditions downstream from the locks during emptying operations. Also, the stoney gates used for control of filling and emptying, the miter gates, and miter gate operating machinery are in bad condition. Various elements of the filling and emptying system were developed in a 1:25-scale hydraulic model for use in rehabilitating the locks. Both the landward and riverward locks were investigated and recommended design and modifications were furnished to accomplish rehabilitation of both locks although only the landward lock will be completely rehabilitated. Major modifications to the locks will include constructing new intake manifolds, lowering the roof of the filling and emptying culverts and changing their shape, constructing new sidewall ports, replacing the stoney gates with tainter valves, and constructing new culvert outlets. With the rehabilitated system, the lock could be filled in 10.2 min and emptied in 10.6 min with a 4-min valve time and a 37.8-ft lift.
Download or read book Navigation Conditions at the Upstream Approach to Lock and Dam No 3 Mississippi River written by Louis J. Shows and published by . This book was released on 1979 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Filling and Emptying Systems for New 1200 ft Lock No 19 Mississippi River Keokuk Iowa written by United States Corps of Engineers and published by . This book was released on 1962 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Filling and Emptying System for Medium lift Locks Trinity River Texas written by Noel R. Oswalt and published by . This book was released on 1977 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lock Filling and Emptying System Holt Lock and Dam Warrior River Alabama written by Thomas E. Murphy and published by . This book was released on 1965 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Filling and Emptying Systems for St Anthony Falls Locks Mississippi River Minnesota written by United States Corps of Engineers and published by . This book was released on 1964 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spillway for Lock and Dam 26 Mississippi River Missouri and Illinois written by Noel R. Oswalt and published by . This book was released on 1973 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Navigation Conditions and Filling and Emptying System New Bankhead Lock Black Warrior River Alabama written by Noel R. Oswalt and published by . This book was released on 1972 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Filling and Emptying Systems for New 1200 ft Lock No 19 Mississippi River Keokuk Iowa written by Donald L. Preston and published by . This book was released on 1962 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
