Author: Alvin J. ChandaPublisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 182
Book Description
Lower Monumental Dam, Snake River, Washington
Author: Alvin J. ChandaPublisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 182
Book Description
Lower Monumental Dam, Snake River, Washington, Hydraulic Model Investigation, Technical Report No.102.1
Author: Alvin J. ChandaLower Monumental Dam, Snake River, Washington: Hydraulic Model Investigation
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Lower Monumental Dam is located 41.6 miles above the mouth of the Snake River and 35 miles northeast of Pasco, Washington. Maximum heat on the project is 103 ft; the project design discharge is 850,000 cfs. Excavation requirements, diversion plans, structures locations, and methods of operation were studied in a 1:100-scale model that reproduced 2.4 miles of river channel and pertinent overbank topography. The first-step cofferdam and diversion channel were designed to protect the work area against discharges to 250,000 cfs. The diversion channel and cofferdam cells were revised and the location of a temporary fishway was determined by means of the model study. Tests of the second-step cofferdam, designed for 200,000 cfs, indicated that the height of four upstream cells should be increased 3 ft, the three downstream temporary fishway entrance. (Modified author abstract).
Lower Monumental Dam, Snake River, Washington: Hydraulic Model Investigation
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Lower Monumental Dam is located 41.6 miles above the mouth of the Snake River and 35 miles northeast of Pasco, Washington. Maximum heat on the project is 103 ft; the project design discharge is 850,000 cfs. Excavation requirements, diversion plans, structures locations, and methods of operation were studied in a 1:100-scale model that reproduced 2.4 miles of river channel and pertinent overbank topography. The first-step cofferdam and diversion channel were designed to protect the work area against discharges to 250,000 cfs. The diversion channel and cofferdam cells were revised and the location of a temporary fishway was determined by means of the model study. Tests of the second-step cofferdam, designed for 200,000 cfs, indicated that the height of four upstream cells should be increased 3 ft, the three downstream temporary fishway entrance. (Modified author abstract).
Spillway for Little Goose Dam, Snake River, Washington
Author: Richard L. JohnsonPublisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 132
Book Description
Spillway and Stilling Basin, Lower Monumental Dam, Snake River, Washington
Author: Richard L. JohnsonPublisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 98
Book Description
Little Goose Dam, Snake River, Washington
Author: Richard L. JohnsonPublisher:
ISBN:
Category : Fishways
Languages : en
Pages : 160
Book Description
Spillway and Stilling Basin Lower Monumental Dam Snake River, Washington: Hydraulic Model Investigation
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 71
Book Description
A 3-bay-wide section of upstream approach, spillway and stilling basin, and exit channel were reproduced in a 1:42.47-scale hydraulic model. Flow conditions adjacent to the spillway were also observed in a 1:100-scale general model. The model tests indicated that capacity of the spillway would be slightly less than computed because of losses at the abutments. Pressures on the crest and piers were above the range of cavitation for all discharges and methods of spillway operation. The original stilling basin would not contain the hydraulic jump at the spillway design flow of 850,000 cfs. Additional excavation in the exit channel, or erosion of the river bed to elev 392, provided the desired capacity for the stilling basin. Minimum excavation requirements and optimum heights of vertical and sloping end sills were determined. (Modified author abstract).
Ice Harbor Dam, Snake River, Washington: Hydraulic Model Investigation
Author: Louis Z. PerkinsPublisher:
ISBN:
Category :
Languages : en
Pages : 169
Book Description
Flow conditions to be expected during and after construction of Ice Harbor Dam were determined in a 1:100-scale hydraulic model that reproduced 2.7 miles of riverbed, pertinent overbank areas, successive structures, excavated channels, and disposal sites. The purposes of the model study were to check the adequacy of original designs for the project and to develop revisions if required to benefit fish passage, river navigation, energy dissipation, and power generation. Improved designs for the first- and second-stage cofferdams, fishway entrances, powerhouse tailrace, and navigation lock outlet were developed in the model. Diversion of a major portion of the river discharge through three powerhouse skeleton units would facilitate the upstream passage of fish during second-step construction. Alternative methods for operation of the completed project were evaluated. (Author).
Author: