Principal spillway definition

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

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.

  • Some rose to the occasion, while others were completely out of their element.

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

  • Principal spillway trench—Bottom grade should be close to that specified.

  • 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.

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

  • 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).

  • This tailored format is given in Attachment A5.4. Use this suggested outline and tailor it to your particular program.

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

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


More Definitions of Principal spillway

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.
Principal spillway means an open and/or closed channel designed to allow a normal range of stormwater flows to discharge from an impoundment.
Principal spillway means the primary structure for the discharge of normal flow through a dam.
Principal spillway means the spillway which conveys normal runoff out of the reservoir.
Principal spillway means the primary or first used spillway during normal inflow and flood flows. "Probable" means likely to occur; reasonably expected; realistic.

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;

  • Curb Stop means the City-owned valve on a service pipe located on a City street or lane or right-of-way or within an easement at or near the consumer’s property line, or easement line.

  • 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

  • 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.

  • Landfill cell means a discrete volume of a hazardous waste landfill which uses a liner to provide isolation of wastes from adjacent cells or wastes. Examples of landfill cells are trenches and pits.

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

  • Class A operator means the individual who has primary responsibility to operate and maintain the UST system in accordance with applicable requirements. The Class A operator typically manages resources and personnel, such as establishing work assignments, to achieve and maintain compliance with regulatory requirements under this chapter.

  • 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 a person who implements applicable underground storage tank regulatory requirements and standards. This includes implementing the day-to-day aspects of operating, maintaining, and record keeping for underground storage tanks at one or more facilities. A Class B operator typically monitors, maintains and ensures that release detection methods, record-keeping, and reporting requirements are met; release prevention equipment, record-keeping, and reporting requirements are met; all relevant equipment complies with performance standards; and appropriate individuals are trained to properly respond to emergencies caused by releases and spills.

  • 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.