Search results
Results from the WOW.Com Content Network
Silt fence installed on a construction site. Silt fences are often installed as perimeter controls. They are typically used in combination with sediment basins and sediment traps, as well as with erosion controls, which are designed to retain sediment in place where soil is being disturbed by construction processes (i.e., land grading and other earthworks).
The fence is just one example of a shared expense between neighbors. Others to think about include gate considerations, fall cleanup, snow removal, land modification and vegetation planting and ...
For the enclosure of livestock such as cows and sheep, a four-foot (1.2 m) high fence using four rails is sufficient. Taller fences of 6–7 feet (1.8–2.1 m) are required for big game such as deer and elk, as the three-dimensional structure of the fence discourages jumping over it; a 9–10 foot (2.7–3.0 m) wire fence would be needed for ...
Help; Learn to edit; Community portal; Recent changes; Upload file; Special pages
The primary data set used in cost distance analysis is the cost raster, sometimes called the cost-of-passage surface, [9] the friction image, [8] the cost-rate field, or cost surface. In most implementations, this is a raster grid , in which the value of each cell represents the cost (i.e., expended resources, such as time, money, or energy) of ...
In areas where such a tall fence is unsuitable (for example, on mountains subject to very high winds), deer may be excluded (or contained) by a fence of ordinary height (about 1.5 metres [4 feet 11 inches]), with a smaller one of about 1 metre (3 feet 3 inches) high, about 1 metre (3 feet 3 inches) away from it, on the same side as the deer.
Breakwaters may also be small structures designed to protect a gently sloping beach to reduce coastal erosion; they are placed 100–300 feet (30–90 m) offshore in relatively shallow water. An anchorage is only safe if ships anchored there are protected from the force of powerful waves by some large structure which they can shelter behind.
As the costs of hurricane damage increase, more and more houses along the Gulf Coast are being built as or converted to stilt houses. [ 4 ] Stilt houses are also still common in parts of the Mosquito Coast in northeastern Nicaragua , and in northern Brazil [ 5 ] as well as the bayou parts of the Southern United States and the hurricane prone ...