Design storm definition

Design storm means a hypothetical discrete rainstorm characterized by a specific duration, temporal distribution, rainfall intensity, return frequency, and total depth of rainfall.

Design storm means a hypothetical discrete rainstorm characterized by a specific duration, temporal distribution, rain- fall intensity, return frequency and total depth of rainfall.

Design storm means a prescribed hyetograph and total precipitation amount (for a specific duration recurrence frequency) used to estimate runoff for a hypothetical storm for the purposes of analyzing existing drainage, designing new drainage facilities or assessing other impacts of a proposed project on the flow of surface water. (A hyetograph is a graph of percentages of total precipitation for a series of time steps representing the total time during which the precipitation occurs.)

Examples of Design storm in a sentence

• Design storm drainage system and components based on storm frequency from local codes and methodologies.

• Design storm sewers so that the minor storm event hydraulic grade line does not surcharge the system and major storm event hydraulic grade line is 1-foot below the ground surface.

• Design storm drainage system and components based on storm frequency from local codes and methodologies is more stringent, in which case the more stringent shall be used.

• Design storm duration is the critical duration of rainfall requiring the greatest detention volume.

• An outfall is any culvert, roadside ditch, or storm sewer drainage discharge point with runoff either originating from or passing through the project right-of-way.Line 17: Outfall station.The station along the reference line where the outfall is located.Line 18: Design storm frequency.Enter the flood frequency used for the design of the culvert or storm sewer system.

More Definitions of Design storm

Design storm means a hypothetical depth of rainfall that would occur for the stated return frequency (i.e. once every 2 years or 10 years), duration (i.e. 24-hours) and timing of distribution (i.e. type II). All values are based on the historical rainfall records for the area. Design storms used in this ordinance are summarized in Sec. 6.

Design storm means a rainfall event used in the analysis and design of drainage facilities.

Design storm means a rainfall (or other precipitation) event or pattern of events for use in analyzing and designing drainage facilities, specifying both the return period in years and the duration in hours.

Design storm means a hypothetical discrete rainstorm characterized by a specific duration, temporal distribution, rainfall intensity, return frequency, and total depth of rainfall. The TR-55, Type Atlas 14 MSE4 24-hour design storms for [name of municipality] are: 1-year, [2.2] inches; 2-year, [2.5] inches; 5-year, [3.3] inches; 10-year, [3.8] inches; 25-year, [4.4] inches; and 100- year, [5.3] inches.

Design storm means the meteorological precipitation event selected for a particular dam used to compute runoff and inflows to the impoundment of the dam. The minimum design storm for Connecticut dams is the 100 year storm event (one percent chance of being equaled or exceeded in any given year).

Design storm means predicted precipitation of given intensity, frequency, and duration based upon National Weather Service data that is required to be considered in the design of a dam.

Design storm means hypothetical depth of rainfall that would occur for the stated return frequency (i.e. once every 2 years or 10 years), duration (i.e. 24-hours) and timing of distribution (i.e. type II). All values are based on the historical rainfall records for the area.