A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Possible construction of facilities to improve passage of juvenile and adult migratory fish at Ice Harbor Lock and Dam on the Snake River, Washington, caused concern over the impacts to navigation especially in the lower lock approach. A 1:55-scale physical model of the project was used to help identify these impacts. Navigation conditions in the lower lock approach were determined for various discharges and barge configurations of rock dikes placed in the lower lock approach. The study revealed that the installation flow deflectors at Ice Harbor Dam caused adverse impacts to navigation in the lower lock approach. An intense eddy formed near the downstream guard wall, and the angle magnitude of the crosscurrent in the lower lock approach were larger than those with the no-deflector conditions. Several alternatives included the placement of four, 40-ft-diam circular cells, 120-ft on center, located downstream, parallel, and riverward of the lower guard wall.
Possible construction of facilities to improve passage of juvenile and adult migratory fish at Ice Harbor Lock and Dam on the Snake River, Washington, caused concern over the impacts to navigation especially in the lower lock approach. A 1:55-scale physical model of the project was used to help identify these impacts. Navigation conditions in the lower lock approach were determined for various discharges and barge configurations of rock dikes placed in the lower lock approach. The study revealed that the installation flow deflectors at Ice Harbor Dam caused adverse impacts to navigation in the lower lock approach. An intense eddy formed near the downstream guard wall, and the angle magnitude of the crosscurrent in the lower lock approach were larger than those with the no-deflector conditions. Several alternatives included the placement of four, 40-ft-diam circular cells, 120-ft on center, located downstream, parallel, and riverward of the lower guard wall.
Navigation Conditions in Lower Lock Approach of Ice Harbor Lock and Dam, Snake River, Washington
2002
114 pages
Report
No indication
English
Hydrology & Limnology , Civil Engineering , Surface navigation , Dams , Locks(Waterways) , Water flow , Structural properties , Natural resources , Flow visualization , Adverse conditions , Army corps of engineers , Resource management , Rivers , Environmental management , Civil engineering , Harbors , Dikes , Fishes , Eddy currents , Deflectors , Animal migration , River currents , Washington(State) , Ice harbor lock and dam , Snake river , Navigation conditions , Coffer cells , Fish passage , Flow deflectors
| Engineering Index Backfile | 1961
Navigation lock leading into New Orleans harbor rests on 5,900 piles
| Engineering Index Backfile | 1950