Principal spillway definition

Principal spillway means the primary or first used spillway during normal inflow and flood flows.
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Principal spillway means the hydraulic structure designed to discharge water stored between the normal pool and the emergency spillway invert elevations.
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Principal spillway means the lowest spillway designed to convey water from the reservoir at predetermined release rates.
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Examples of Principal spillway in a sentence

  • Principal spillway, emergency spillway and outlet protection for sediment basins shall be designed to pass a 25 year, time of con- centration storm event.

  • These include such elements as—• Foundation treatment.• Embankment zoning.• Principal spillway material.• Areas needed for future increase to size of dam and auxiliary spillways.Consideration of a future change in hazard potential classification and associated design criteria may also include physical or administrative provisions to facilitate modifying dam, and auxiliary spillway dimensions, or pool elevations.

  • Principal spillway trench and similar structure foundations—Closer tolerances due to a struc- ture require plus 0.10 foot to minus 0.5 foot.

  • If, in any such suit claim or proceedings, or any part, thereof or comprised therein is held to constitute an infringement and its use is permanently enjoined, the bidder shall promptly make every reasonable effort to secure for the Authority, an authorization/ license, at no cost to the Authority, authorising continued use of the infringing work.

  • Principal spillway-- Also commonly referred to as the service spillway, the [The] primary or initial spillway engaged during a rainfall runoff event that is designed to pass normal flows.

  • Principal spillway can be either a mechanical spillway (CSP riser and outlet tube) or permanent steel sheet piling weir (preferred based on constructability, maintenance, and safety considerations; weir outlet may require the use of a low-flow orifice to completelydrain the basin).

  • Principal spillway shall be adequate to handle at least the 50-year flood.

  • Principal spillway shall be adequate to handle at least the 50-year flood unless the emergency spillway is appropriately armored against scouring.

  • We repeat past patterns, and the low moments of history keep echoing again and again.

  • Principal spillway discharge must be released in a nonerosive manner.


More Definitions of Principal spillway

Principal spillway means an open and/or closed channel designed to allow a normal range of stormwater flows to discharge from an impoundment.
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Principal spillway means an ungated pipe conduit with minimum diameter of twelve inches [30.48 centimeters] constructed for the purpose of conducting water through the embankment back to streambed elevation without erosion.
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Principal spillway means the primary structure for the discharge of normal flow through a dam.
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Principal spillway means the primary or first used spillway during normal inflow and flood flows. "Probable" means likely to occur; reasonably expected; realistic.
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Principal spillway means the spillway which conveys normal runoff out of the reservoir.
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Related to Principal spillway

  • Drywell means an unlined or partially lined underground pit (regardless of geometry) into which drainage from roofs, basement floors, water softeners or other non-wastewater sources is discharged and from which the liquid seeps into the surrounding soil.

  • B-BBEE means broad-based black economic empowerment as defined in section 1 of the Broad-Based Black Economic Empowerment Act;

  • Class C operator means the individual responsible for initially addressing emergencies presented by a spill or release from an UST system. The Class C operator typically controls or monitors the dispensing or sale of regulated substances.

  • Uppermost aquifer means the geologic formation nearest the natural ground surface that is an aquifer, as well as lower aquifers that are hydraulically interconnected with this aquifer within the facility's property boundary.

  • Summer Session means the time including all academic offerings during the pre-session, the regular four- week and eight-week sessions, and the post-session.

  • JetBrains or “We” means JetBrains s.r.o., having its principal place of business at Xx Xxxxxxxxx XX 0000/00, Xxxxxx, 00000, Xxxxx Xxxxxxxx, registered in the Commercial Register maintained by the Xxxxxxxxx Xxxxx xx Xxxxxx, Xxxxxxx X, Xxxx 00000, ID. No.: 265 02 275.

  • IOSCO means the International Organisation of Securities Commissions.

  • Stinger-steered automobile or watercraft transporter means an automobile or watercraft transporter

  • townsite in relation to the townsite to be established near the harbour means a townsite (whether or not constituted and defined under section 10 of the Land Act) primarily to facilitate the Company’s operations in and near the harbour and for employees of the Company and in relation to the mining areas means such a townsite or townsites or any other townsite or townsites which is or are established by the Company for the purposes of its operations and employees on or near the mining areas in lieu of a townsite constituted and defined under section 10 of the Land Act;

  • Model 2 seller means a seller registered under the agreement that:

  • LSD means lysergic acid diethylamide.

  • LOT FRONTAGE means lot frontage as defined in Town's Zoning By-law No. 1136 (1987), as amended, or any successor thereto.

  • South Caucasus/Central and South Asian (SC/CASA) state means Armenia, Azerbaijan, Georgia, Kazakhstan, Kyrgyzstan, Pakistan, Tajikistan, Turkmenistan, or Uzbekistan.

  • CSDCC means the China Securities Depository and Clearing Co., Ltd. “CSRC” means the China Securities Regulatory Commission.

  • Co-pilot means a pilot operating other than as pilot-in-command, on an aircraft for which more than one pilot is required, but excluding a pilot who is on board the aircraft for the sole purpose of receiving flight instruction for a licence or rating.

  • Beam axis means a line from the source through the centers of the x-ray fields.

  • Class A operator means an individual who has primary responsibility to operate and maintain the underground storage tank system in accordance with applicable requirements established by the department. The class A operator typically manages resources and personnel, such as establishing work assignments, to achieve and maintain compliance with regulatory requirements.

  • SFTR means Regulation (EU) 2015/2365 of the European Parliament and of the Council of 25 November 2015 on transparency of securities financing transactions and of reuse and amending Regulation (EU) No 648/2012;

  • Capitol hill complex means the grounds and buildings within the area bounded by 300 North Street, Columbus Street, 500 North Street, and East Capitol Boulevard in Salt Lake City.

  • Class B operator means the individual who has day-to-day responsibility for implementing applicable regulatory requirements established by the department. The Class B operator typically implements in-field aspects of operation, maintenance, and associated record keeping for the UST systems.

  • Sailboat means the same as that term is defined in Section 73-18-2.

  • Cesspool means an unlined or partially lined underground pit or underground perforated receptacle into which raw household wastewater is discharged and from which the liquid seeps into the surrounding soil. Cesspool does not include a septic tank.

  • NZOC means the New Zealand Olympic Committee Incorporated.

  • CM means City Manager of COE appointed in terms of Section 82 of the Local Government: Municipal Structures Act 117 of 1998

  • Mist spray adhesive means any aerosol which is not a special purpose spray adhesive and which delivers a particle or mist spray, resulting in the formation of fine, discrete particles that yield a generally uniform and smooth application of adhesive to the substrate.

  • Firefighter means any regular, paid or volunteer, member of a lawfully constituted fire department of a municipal corporation, township, fire district, or village.