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A floodplain or flood plain or bottomlands [1] is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge . [ 2 ]
These FIRMs are used in identifying whether a land or building is in flood zone and, if so, which of the different flood zones are in effect. In 2004, FEMA began a project to update and digitize the flood plain maps at a yearly cost of $200 million. The new maps usually take around 18 months to go from a preliminary release to the final product.
However, flood control did not seem to be considered a serious problem until Tulsa's population growth spilled out into the Bird Creek watershed east and north of downtown Tulsa. The city issued its first land-use plan after a serious flood along the Arkansas River in 1923, but this plan was aimed more at preventing flooding along the Arkansas ...
A 100-year flood is a flood event that has on average a 1 in 100 chance (1% probability) of being equaled or exceeded in any given year. [1] A 100-year flood is also referred to as a 1% flood. [2] For coastal or lake flooding, a 100-year flood is generally expressed as a flood elevation or depth, and may include wave effects. For river systems ...
in 1985, Tulsa centralized responsibility for all city flood, drainage, and stormwater programs in a Department of Stormwater Management . A stormwater utility fee was established by ordinance in 1986 to operate the program. Owners of all properties in the city are required to pay the fee, which was established by an ordinance at $2.58 per month.
In land use, a setback is the minimum distance which a building or other structure must be set back from a street or road, a river or other stream, a shore or flood plain, or any other place which is deemed to need protection. [1]
Flood control channels are large and empty basins where surface water can flow through but is not retained (except during flooding), or dry channels that run below the street levels of some larger cities, so that if a flash flood occurs the excess water can drain out along these channels into a river or other bodies of water. Flood channels are ...
Of Oklahoma's federally protected park or recreational sites, the Chickasaw National Recreation Area is the largest, with 4,500 acres (18 km 2). [18] Other federal protected sites include the Santa Fe and Trail of Tears national historic trails, the Fort Smith and Washita Battlefield national historic sites, and the Oklahoma City National ...
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