earthplatform.com

Results 1 - 10 from 62 for silt and debris in 0.311 sec.

Restore Hetch Hetchy: New effort launched to demolish dam and restore Hetch Hetchy By Jim Nickles
"I don't know if we ... Society. "I can't imagine how much silt there is behind that dam. ... It (the goal) is bold and visionary but quite problematic. A lot ... done in support of Hodel's initiative," he said. "And it was very quick and very dirty and it was very wrong. There is not enough ...
hetchhetchy.org

Niagara Falls - the Falls (Cataracts)
This buried gorge followed a path perpendicular to the receding Falls. As a result, the path of the Falls took the course of least resistance and began following ... enters the Whirlpool it follows the contour of the circular edge of Whirlpool rotating clockwise and exits through the northern channel towards Queenston. The Whirlpool water flow was reversed for the ...
niagarafrontier.com

Pollution UpDate 09.03.99
This diminished capacity can cause damage to homes and property due to flooding. Huh? (3) The need to make watercourse flow improvements and stream clearance are ... fill that Bud placed getting eroded and becoming downstream "silt and debris" that then has to be pulled out of the stream! So in 1992, Bud fills in, and in 1999, Bud reams out ( ...
rayproffitt.org

ARCADIS, Imagine the result. Murphy Farm Stream Restoration.
Murphy Farm Project, the stream was returned to a state where bank erosion and sedimentation will be minimized, thus reducing the amount of silt and debris that would otherwise find its way to the Tar-Pamlico River. By grading, seeding and planting the ...
www.greystone-consultants.com

COPA - PCBs and Superfund in Bloomington, Indiana
'We had whole trees, big branches and tons of silt. It killed a lot of fish," Calkins said. ... After the accident, the city hired crews to remove debris for seven to eight miles downstream, according to a ... silt from the Palouse into the Spokane River. The PCBs are from a variety of industrial sources, including Kaiser's Trentwood plant, the Spokane Industrial Park and the Liberty Lake Sewer and ...
www.copa.org

Aquatic Filter Barrier | Turbidity Barriers | Silt Curtain | Beach Protection
Barrier | Turbidity Barriers | Silt Curtain | Beach Protection Marine Construction- Design Build- Construction Management- Specialty Dredging- Salvage Projects- Commercial ... and applications. From simple, permeable curtains to complex structures, Gunderboom systems allow water passage while filtering particulates, debris, contaminates, sounds, and/or aquatic biota such as fish, fish eggs and larvae ...
gunderboom.com

Biodiversity and Wildlife Information
These vital features, functions and streamside area conditions are numerous and varied and include such things as sources of large organic debris (fallen trees and ... food, nutrients and organic matter to the stream, stream bank stabilization and buffers for streams from excessive silt and surface runoff pollution. Qualified Environmental Professionals and Assessment Methods ...
www.env.gov.bc.ca

The Ice Age (Pleistocene Epoch) | Gulf Coast Geology | Educator and Student Resources | Gulf of Mexico Program | US EPA
The fine silt- and clay-sized sediment was picked up by the strong winds blowing from the glaciers and deposited in sometimes thick, extensive layers called loess. Loess deposits cover much of the Midwest and ...
epa.gov

National Geographic: Eye in the Sky--Floods and Dams
Sky--Floods and Dams  HUMAN  IMPACT Floods and  Dams Ozone and  Pollution Deforestation  and  Desertification Overpopulation They bring both death and the promise of renewed life, often ... floods enrich surrounding land, leaving behind organic material and minerals in the sand, silt, and debris. Ancient Egyptians planned their planting and their lives around the summer flooding of the Nile ...
nationalgeographic.com

Floods Royal Meteorological Society UK, Weather and Climate
Torrents of water and debris in the East and West Lyn rivers destroyed bridges. Boulders and trees created temporary dams that suddenly gave way ... them fertile silt that makes agriculture possible. The flow of this river is nowadays controlled by means of the Aswan High Dam, an operation that can have its advantages and disadvantages. ...
rmets.org