Backwater definition

Backwater means the increase in water surface level immediately upstream from any structure, dam, obstruction or deposit, erected, used, or maintained in the floodway or on the flood plains caused by the resulting reduction in conveyance area.
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Backwater means the increase in the water surface ele- vation that results from a bridge and any associated road fills under average water flow conditions.
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Backwater means a temporary or permanent body of water that fills from the main river channel but excludes the coorong, lake Alexandrina and lake Albert.
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Examples of Backwater in a sentence

  • The Yazoo Basin, Yazoo Backwater, Mississippi Project was authorized by Section 3 of the Flood Control Act of 1941 and subsequently amended by the Flood Control Acts of 1944 and 1965 to provide flood protection to five subareas of the Yazoo Backwater Area.

  • The Yazoo Backwater Area Water Management Project includes the remaining pump station and additional features.

  • Backwater habitats will be sampled until the river recedes and habitat is no longer accessible.

  • While the Yazoo Backwater Area Water Management Project aims to provide flood risk reduction to communities in the YSA, it would simultaneously decrease the frequency and duration of flooding to aquatic resources, including bottomland hardwood wetlands.

  • USACE (Vicksburg District), the Signatories, Invited Signatories), and Concurring Parties agree that the Amended Undertaking associated with the Yazoo Backwater Area Water Management Project shall be administered in accordance with the following stipulations in order to take into account the effects of the individual elements of the Amended Undertaking on historic properties and to satisfy USACE’s responsibilities under Section 106 of the NHPA for all applicable Amended Undertakings.

  • Annual compensatory mitigation status reports will be posted to the District’s Yazoo Backwater Project website.

  • The conversion of 800 feet of the existing ▇▇▇▇▇▇▇▇▇ Creek channel from Wall Street to the railroad bridge to a backwater wetland for both stormwater and floodwater storage (Backwater Wetland).

  • Backwater channels and alcoves will be created within the new floodplain surfaces to create areas that will inundate at winter base flows, recreating critical areas of quiet water that will be available to aquatic species.

  • Backwater embankment of the Odra River at the Myśla River.” included construction of a new flood protection embankment encircling the village of Chlewice.

  • The Project’s adverse impacts are concentrated on natural resources in the Yazoo Backwater Study Area, or YSA, in the southern portion of the 080302 U.S. Geological Survey Hydrologic Unit Code watershed (Figure 1).


More Definitions of Backwater

Backwater means the increase in the natural flood eleva- tion which results from a bridge and any associated road fills.
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Backwater means the increase in water elevation caused by an obstruction within a stream.
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Related to Backwater

  • Blackwater means wastewater contaminated by human body waste, toilet paper and any other material intended to be deposited in a receptor designed to receive urine or feces.

  • Virginia Stormwater Management Program or “VSMP” means a program approved by the State Board after September 13, 2011, that has been established by a locality to manage the quality and quantity of runoff resulting from land-disturbing activities and shall include such items as local ordinances, rules, permit requirements, annual standards and specifications, policies and guidelines, technical materials, and requirements for plan review, inspection, enforcement, where authorized in this article, and evaluation consistent with the requirements of this article and associated regulations.

  • Infrastructure means infrastructure serving the County and improved or unimproved real estate and personal property, including machinery and equipment, used in the operation of the Project, within the meaning of Section 4-29-68 of the Code.

  • Infrastructure project means any activity related to the construction, alteration, maintenance, or repair of infrastructure in the United States regardless of whether infrastructure is the primary purpose of the project. See also paragraphs (c) and (d) of 2 CFR 184.4.