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Remains of the Band-e Kaisar dam, built by the Romans in the 3rd century AD. In Iran, bridge dams such as the Band-e Kaisar were used to provide hydropower through water wheels, which often powered water-raising mechanisms. One of the first was the Roman-built dam bridge in Dezful, [24] which could raise water 50 cubits (c. 23 m
A beaver dam or beaver impoundment is a dam built by beavers; it creates a pond which protects against predators such as coyotes, wolves and bears, and holds their food during winter. These structures modify the natural environment in such a way that the overall ecosystem builds upon the change, making beavers a keystone species and ecosystem ...
The concern is they have outlived their usefulness and climate change could bring storms they were never built to withstand. Recent floods heighten concerns that New England dams may not be built ...
It's a difficult problem in part because dams in the U.S. are roughly 60 years old, on average. ... But large dams hold back tremendous amounts of water and energy, so they carry enormous ...
A detention dam is a dam built to catch surface runoff and stream water flow to regulate the water flow in areas below the dam. [1] Detention dams are commonly used to reduce the damage caused by flooding or to manage the flow rate through a channel. [2] Detention dams can also be constructed to replenish groundwater and trap sediment. [2]
Each plot has a paved road in the front and a canal in the back to make it accessible by land and water. A terp in the center of the polder is built higher than the highest recorded flood level of the North Sea to protect people if the dike fails; the Wieringermeer terp is large enough to hold the population of Amsterdam. [4]
Tropical Storm Debby, induced by warmed oceans, brought foot of rain to southeast Georgia & Statesboro, creating disaster that breached dams. Debby is a billion-dollar catastrophe with dams failed ...
Some reservoirs such as this in Argos, Peloponnese are made for recreational purposes, rather than storing fresh water. A reservoir (/ ˈ r ɛ z ər v w ɑːr /; from French réservoir [ʁezɛʁvwaʁ]) is an enlarged lake behind a dam, usually built to store fresh water, often doubling for hydroelectric power generation.