A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Final Environmental Assessment for the Laguna Reservoir Restoration Project. Laguna Restoration Project. Lower Colorado Region
This Environmental Assessment (EA) describes the potential environmental consequences resulting from a proposal by the United States (U.S.) Bureau of Reclamation (Reclamation) to allow for removal of sediment that has accumulated at the All-American Canal Headworks and the California Sluiceway channel by restoring the storage capacity of the Laguna Reservoir on the Colorado River such that sluicing flows from Imperial Dam may be safely captured. Reclamation has prepared this EA in accordance with the National Environmental Policy Act of 1969 (NEPA), 42 United States Code (U.S.C.) 4321-4370d, as implemented by the Council on Environmental Quality (CEQ) regulations, 40 Code of Federal Regulations (CFR) Parts 1500-1508 and the guidelines contained in the U.S. Department of the Interior Bureau of Reclamation Draft NEPA Handbook (Reclamation 2005a). Laguna Dam is located approximately 12 miles northeast of Yuma, Arizona, and five miles downstream from Imperial Dam, on the border of California and Arizona. The reservoir storage area is located within the existing floodplain of the Colorado River that is currently bound by emperial Dam on the north side, Laguna Dam on the south side, Mittry Lake and the Old River channel on the east side, and the Laguna Settling Basin on the west side. The Laguna Reservoirs original storage capacity was approximately 1,500 acre-feet (af) and was historically maintained by dredging approximately every ten years (since the 1940s) to prevent sediment accumulation. Sediment deposition has reduced the reservoir storage capacity to approximately 400 af at the present time.
Final Environmental Assessment for the Laguna Reservoir Restoration Project. Laguna Restoration Project. Lower Colorado Region
This Environmental Assessment (EA) describes the potential environmental consequences resulting from a proposal by the United States (U.S.) Bureau of Reclamation (Reclamation) to allow for removal of sediment that has accumulated at the All-American Canal Headworks and the California Sluiceway channel by restoring the storage capacity of the Laguna Reservoir on the Colorado River such that sluicing flows from Imperial Dam may be safely captured. Reclamation has prepared this EA in accordance with the National Environmental Policy Act of 1969 (NEPA), 42 United States Code (U.S.C.) 4321-4370d, as implemented by the Council on Environmental Quality (CEQ) regulations, 40 Code of Federal Regulations (CFR) Parts 1500-1508 and the guidelines contained in the U.S. Department of the Interior Bureau of Reclamation Draft NEPA Handbook (Reclamation 2005a). Laguna Dam is located approximately 12 miles northeast of Yuma, Arizona, and five miles downstream from Imperial Dam, on the border of California and Arizona. The reservoir storage area is located within the existing floodplain of the Colorado River that is currently bound by emperial Dam on the north side, Laguna Dam on the south side, Mittry Lake and the Old River channel on the east side, and the Laguna Settling Basin on the west side. The Laguna Reservoirs original storage capacity was approximately 1,500 acre-feet (af) and was historically maintained by dredging approximately every ten years (since the 1940s) to prevent sediment accumulation. Sediment deposition has reduced the reservoir storage capacity to approximately 400 af at the present time.
Final Environmental Assessment for the Laguna Reservoir Restoration Project. Laguna Restoration Project. Lower Colorado Region
2006
310 pages
Report
No indication
English
Environmental Pollution & Control , Civil Engineering , Hydrology & Limnology , Land reclamation , Environmental assessment , Reservoirs , Arizona(state) , Reservoir storage , Sedimentation , Dredging , Accumulation , Removal , Floodplain , Sedimentation rates , Reduction , Storage capacity , Channels(Waterway) , Environmental consequences , Regulations , Implementation , Guidelines , National Enviornmental Policy Act(NEPA) , Council on Enviornmental Qualtiy(CEQ) , Code of Federal Regulations(CFR) , California Sluiceway Channel , Laguna Settling Basin , Yuma(Arizona)
The Laguna dam, Yuma irrigation project, California
Engineering Index Backfile | 1905
Repairing the Laguna dam on the Colorado
| Engineering Index Backfile | 1924
| Engineering Index Backfile | 1930
The construction of the Laguna dam, Colorado river, Arizona
Engineering Index Backfile | 1908