Download Free Navigation Conditions At Jackson Lock And Dam Tombigbee River Alabama Hydraulic Model Investigation Book in PDF and EPUB Free Download. You can read online Navigation Conditions At Jackson Lock And Dam Tombigbee River Alabama Hydraulic Model Investigation and write the review.

Jackson lock and dam will replace three out-of-date, small, low-lift locks and dams on the Tombigbee River. The lock is to be of the high-lift type with chamber dimensions of 110 by 600 ft, and will be located in the right bank about 600 ft landward of the river's edge. Model tests were conducted on a 1:120-scale model that reproduced approximately 2.3 miles of the river and the lock and dam structure. The model investigation was concerned principally with navigation conditions in the upper and lower lock approaches and over the fixed-crest spillway under various flow conditions, and determination of the best dredging plan, lock wall arrangements, and methods of overcoming any undesirable conditions. Another purpose of the model was to permit navigation interests to observe the structure in operation and satisfy themselves of its acceptability from a navigation standpoint. (Author Modified Abstract).
Jones Bluff Lock and Dam is proposed for construction on the Alabama River about 245 miles above its junction with the Tombigbee River to form the Mobile River in south central Alabama about 45 miles above Mobile Bay. The project, which will provide a navigable pool for 75 miles upstream to the mouth of the Coosa River, comprises a nonnavigable gated dam with eleven 50-ft-wide by 35-ft-high tainter gates, an 84- by 600-ft lock on the left bank with a maximum lift of 45 ft, and a four-unit powerhouse on the right bank with a maximum discharge capacity of 35,200 cfs. A 1:100-scale, fixed-bed model reproducing approximately 3.6 miles of the Alabama River was used to determine navigation conditions in the lock approaches, determine effects of powerhouse releases, and develop modifications required to provide satisfactory navigation conditions. (Author).