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Author: Louis J. Shows
Publisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 84
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Book Description
Author: Louis J. Shows
Publisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 84
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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The Red River flows easterly from the northwest portion of Texas along the border between Texas and Oklahoma through southwestern Arkansas into northwestern Louisiana, then southeasterly to join the Old River and form the Atchafalaya River. John H. Overton Lock and Dam is located in a cutoff canal approximately 74 miles above the Mississippi River and about 31 channel miles above Lindy C. Boggs Lock and Dam (formerly Lock and Dam No. 1). John H. Overton Lock and Dam is the second in a series of Rivers Waterway from the Mississippi River to Shreveport, a distance of 238 miles. The general design of John H. Overton Lock and Dam consists of a 26- by 209-m (84- by 685-ft) navigation lock with an adjacent spillway containing five 18-m (60-ft) wide gate bays and a 9300 ft upstream to about 3124 m (10,250 ft) downstream of the dam to an undistorted scale of 1:100. Since John H. Overton Lock and Dam was to be constructed in an excavated channel bypassing the natural river channel, it was important that the alignment of the channel and the arrangement of the lock and dam be satisfactory for navigation. The model investigation was concerned with evaluation of navigation conditions for proposed lock designs and development of modifications required to ensure satisfactory navigation conditions. The study identified any needed modifications to navigation channel alignment, guard wall lengths, or remedial structures. Results of the investigation revealed that a system of structures was required to eliminate adverse current patterns and establish satisfactory navigation conditions for tows entering and leaving the upper and lower lock approaches.
Author: Louis J. Shows
Publisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 86
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Author: Ronald Wooley
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
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Lock and Dam 3 is located on the Red River, in a cutoff channel between 1967 river miles 140 and 142, and about 53 channel miles above John H. Overton Lock and Dam. The lock and dam will be the third lock in a series of five locks and dams designed to furnish the required maximum lift of 141 ft to provide year-round navigation on the Old and Red River Waterway from the Mississippi River to Shreveport, LA, a distance of 236 miles. The principal structures are an 84-ft-wide by 685-ft-long lock, a spillway containing six 60-ft-wide by 42-ft-high tainter gates, and a 315-ft-long fixed-crest weir adjacent to the gated spillway. The dam provides a navigation pool that extends upstream to Lock and Dam 4. The dam is operated to maintain a navigation pool of el 95.0 at the dam (all elevations (el) cited herein are in feet referred to the National Geodetic Vertical Datum). A fixed-bed model reproduced about 3.5 miles of the Red River and adjacent overbank from about 13,500 ft upstream to about 4,800 ft downstream of the dam to an undistorted scale of 1:100. Since Lock and Dam 3 was to be constructed in an excavated channel bypassing the natural river channel, it was important that the alignment of the channel and the arrangement of the lock and dam be satisfactory for navigation. The model investigation was concerned with evaluation of navigation conditions for proposed lock designs and development of modifications required to ensure satisfactory navigation conditions. The study identified any needed modifications to the navigation channel alignment, guard wall lengths, or remedial structures. Results of the investigation revealed that a system of structures was required to eliminate adverse current patterns and establish satisfactory navigation conditions for tows entering and leaving the upper lock approach.
Author: Louis J. Shows
Publisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 108
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Category :
Languages : en
Pages : 0
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John H. Overton Lock and Dam, located in a cutoff channel between river miles 89.0 and 86.5 of the Red River, is designed to maintain a narrow pool elevation of 64 (all elevations are in feet referred to National Geodetic Vertical Datum) upstreaan to Lock and Dam 4. The design calls for an 84 ft by 685-ft usable lock chamber and a dam with five 60-ft-wide gates. A movable-bed model study was performed to determine the alignment of the channel and the arrangement of the lock and dam that would provide the most satisfactory channel for both navigation and sediment movement. The movable-bed model was built to a scale of 1:20 horizontally and 1:80 vertically and reproduced the study area from river miles 90.0 to 85.0. The movable bed was molded using crushed coal with a median grain size of 4 mm and a specific gravity of 1.30. The original design for the lock and dam (Plans A and B) used a six-gate dam, maintaining the upper pool at el 58. The darm was redesigned prior to testing of Plan C, going to the final design of five gates, maintaining the upper pool at el 64. Plan C-81 showed a tendency for reduced deposition along the left bank of the upper lock approach. Plan D reduced scour downstream of the lower lock approach, and Plan D-1 also reduced scour but increased deposition along the left bank of the lower lock approach. Plan E prevented shoaling in the upper lock approach, and Plan E-1 would likely increase shoaling compared with the Base Examination conditions.
Author: Stephen T. Maynord
Publisher:
ISBN:
Category : Channels (Hydraulic engineering)
Languages : en
Pages : 66
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1048
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Author: Bradley M. Comes
Publisher:
ISBN:
Category : Locks (Hydraulic engineering)
Languages : en
Pages : 62
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Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1566
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