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pervious surface definition

Example sentences with "pervious to water", translation memory. Pervious surfaces include grass, mulched groundcover, planted areas, vegetated roofs, permeable paving as well as porches and decks erected on pier foundations that maintain the covered lot surface’s water permeability. They are, however, not the same. We will reclassify those land-use types into either impervious or pervious surfaces to derive the stormwater bill for each property. 3. The minimum pervious surface percentage requirement shall be applicable only in conjunction with the following: Only the following shall be considered pervious surfaces for the purposes of calculating the pervious surface area: Pervious surfaces on a lot shall not include: The percent of pervious surface area shall be calculated by dividing the total area of pervious surfaces on the lot by the total area of the lot. See more. The minimum pervious surface percentage shall be as required by the development standards for the Residential and Residential Flat zones. An impervious surface is a surface which cannot be penetrated by water. Other Words from pervious Synonyms & Antonyms More Example Sentences Learn More about pervious. 2 : permeable pervious soil. Permeable surfaces (also known as porous or pervious surfaces) allow water to percolate into the soil to filter out pollutants and recharge the water table. ‘A typical cubic yard of pervious concrete would have 2650 pounds of #89 gravel, 600 pounds of portland cement, and a water-cement ratio of about 0.30.’ ‘The use of impervious surfaces (like pavement and concrete) can be minimized and replaced with pervious surfaces (like … 1. Impervious surfaces are mainly artificial structures—such as pavements (roads, sidewalks, driveways and parking lots, as well as industrial areas such as airports, ports and logistics and distribution centres, all of which use considerable paved areas) that are covered by water-resistant materials such as asphalt, concrete, brick, stone—and rooftops. 1 : accessible pervious to reason. Grass, mulched groundcover, all areas of a vegetated roof planted with a growing medium, and other planted areas; Permeable or pervious pavers or paving that facilitate the infiltration of water into the soil; and. Impervious surfaces … Define New pervious surface. Pervious surface design, installation, testing, maintenance and cleaning shall be performed in accord with generally accepted practice, manufacturer standards and any applicable professional/manufacturer association standards or required installer certification. 2. A temporary sediment control barrier formed around, in, or on a storm drain inlet in pervious areas. Note for purposes of threshold determination and runoff volume modeling for detention and treatment in the SWDM, vegetated roofs and permeable pavements are to be considered impervious surfaces along with lawns, landscaping, sports … pervious rock. What does pervious mean? Pervious surfaces provide a surface suitable for pedestrian and/or vehicular traffic, while allowing rainwater to infiltrate through the surface and into underlying layers. It may not need to be replaced for 30 years or more (as comparedThe pavers’ ridges ensure that they are installed with the proper spacing, which allows water to drain between the pavers.with 20 years for standard asphalt). We'll calculate the area of impervious surface per parcel and symbolize the parcels accordingly. patents-wipo. Pervious surfaces do not include any structure or building, any porch or deck that limits the covered lot surface from absorbing water, or any outdoor stairs, on-grade surface sports court, swimming pool, artificial turf, sidewalk or patio constructed of concrete, asphalt, brick, compacted gravel or other material that impedes the infiltration of water directly into the subsurface of the lot. WikiMatrix . Why are impervious surfaces bad? En général, seule la forme au masculin singulier est donnée. EPA created the Impervious Surface Growth Model (ISGM) to help communities estimate and compare the likely impervious surface impacts of proposed housing and … The definition of impervious surface, as defined in King County Code 9.04.020(P) reads in part "a hard surface area which either prevents or retards the entry of water into the soil mantle as under natural conditions prior to development, and/or a hard Pervious Surfaces. Pervious materials permit water to enter the ground by virtue of their porous nature or by large spaces in the material. Paver stones can be replaced in sections on an as-needed basis, extending t… Open to passage or entrance; permeable. (adjective) traduction pervious dans le dictionnaire Anglais - Francais de Reverso, voir aussi 'previous',perilous',previously',perfidious', conjugaison, expressions idiomatiques Vernon Square, Mount Vernon Triangle Principle Intersection Area, Public Education, Recreation or Library Buildings or Structures, Entertainment, Assembly, and Performing Arts. pervious: See: amenable , disposable , open , passable , penetrable , pliable , suasible Pharmaceutical preparation in containers that are pervious to water vapor and have improved stability. Surface ratios are divided into three intensity groups: Intensity Category *Intensity Threshold Zoning Process Low Intensity Maximum ISR .50 Zoning Certificate Moderate Intensity Maximum ISR .65 PUD I High Intensity ISR over .65 PUD II *Intensity thresholds for some uses may vary from those thresholds depicted above. Communities can use impervious surface cover as a proxy indicator for roughly comparing the relative impact of alternative development proposals on stormwater runoff and associated water pollution in local waterways. Permeable pavement surfaces are made of either a porous material that enables stormwater to flow through it or nonporous blocks spaced so that water can flow between the gaps. What is the difference between permeable and impermeable surfaces? These could be houses, sheds, driveways, sidewalks, and patios. The area dedicated to a below or above grade swimming pool. patios), outdoor stairways, walking, driving and parking areas made of concrete, brick, asphalt, decorative pavers, compacted gravel or other material that does not facilitate the infiltration of water directly into the subsurface of the lot; The building footprint based on its foundation perimeter, whether located below grade or at grade; Where a building does not have a foundation, the area of the roof; and. Example sentences with "pervious rock", translation memory. Pervious surface regulations are intended to provide a minimum required amount of pervious area and limit the amount of impervious surface on a lot. OPEN JOINTED BLOCKS WITH PERVIOUS JOINTS Interlocking concrete or stone units have spaces between their joints that are filled with a pervious material, such as fine gravel or sand. Keep scrolling for … Stormwater flows into and is stored in an underlying stone reservoir. springer. If not, check the stormwater management efficacy of the different types they’re using. A pervious surface is a surface that allows the percolation of water into the underlying soil.Pervious surfaces include grass, mulched groundcover, planted areas, vegetated roofs, permeable paving as well as porches and decks erected on pier foundations that maintain the covered lot surface's water permeability. Local Examples of pervious pavement and pavers (images link to videos) Energy Plus Hermanton, MN. capable of being passed into or through. Refer to Table 3-2 for further information. 2. An aesthetically pleasing surface that could increase your property value. For more information on the following topic, please see the corresponding referenced chapter: Blagden Alley Residential Transition Area, Massachusetts Avenue Corridor and Mt. Decks or porches constructed above the surface of the lot that are erected on pier foundations, and that maintain a permeable surface underneath that can facilitate the infiltration of water into the soil. Soil is a natural filter. Impervious area Hyd A surface or area within a drainage catchment that significantly restricts the infiltration of water, even though some minor infiltration may occur through minor pores and cracks, e.g. Pervious surface means any surface material that allows stormwater to infiltrate into the ground. Pervious, permeable, and porous pavers (the three Ps) often are used interchangeably by professionals without regard to their unique characteristics. Pervious surfaces include vegetation, water bodies, and bare soil. the new road has a pervious surface that will cut down on the amount of water that collects on it during heavy rains. translation and definition "pervious to water", Dictionary English-English online. Diamond Vogel Paints Duluth, MN. pervious to water . Examples include lawn, landscape, pasture, and native vegetation areas. patents-wipo. translation and definition "pervious rock", Dictionary English-English online. Permeable vs. Impermeable Surfaces . A pervious surface is a surface that allows the percolation of water into the underlying soil. The Long Lake impoundment would be divided into five basins by the construction of four semi-pervious rock-fill dikes. Definition of pervious. An impervious surface refers to any structure that blocks rainwater from soaking into the soil and recharging the ground water. (permeable) perméable adj adjectif: modifie un nom. In harder, jointed (and therefore pervious) rocks, landslips are rarer. Pervious definition, admitting of passage or entrance; permeable: pervious soil. On-grade surface treatments used for purposes of recreation (e.g. Pervious surface coverings if installed correctly and properly maintained duplicate the structural and functional features of traditional pavement. However, you might need to clarify with your contractor to be certain they’re using the terms interchangeably. The joints must be kept open by spacers placed when laying the units or be part of the paver unit construction. the initial ‘wetting’ of concrete surfaces. pervious adj adjective: Describes a noun or pronoun--for example, "a tall girl," "an interesting book," "a big house." An addition to a historic resource that increases the existing lot occupancy at the time of building permit application by 25% or more. When it comes to asphalt, whether you hear “pervious,” “permeable,” or “porous,” chances are that the same thing is meant – a surface designed to allow water to infiltrate instead of running off. means the conversion of a native vegetated surface or other native surface to a nonnative pervious surface, including, but not limited to, pasture land, grassland, cultivated land, lawn, landscaping or bare soil or any alteration of existing nonnative pervious surface that results in increased stormwater runoff as defined in the Surface Water Design Manual. Définition pervious dans le dictionnaire anglais de définitions de Reverso, synonymes, voir aussi 'previous',perviously',perilous',perviousness', expressions, conjugaison, exemples Roofing and other building materials are also classically impervious. All contents of the lawinsider.com excluding publicly sourced documents are Copyright © 2013-. Soils compacted by urban development are also highly impervious. Means of meeting the design standards might include, but are not limited to:• Use of year-round landscape elements that absorb parking lot and street noise.• Use of underground parking.• Use of extra-thick windows.• Facades constructed of materials that help to absorb sounds.• Pervious surface landscape and parking lot materials that absorb sounds.• Use of building materials that aid in the reduction of sound traveling through common floors and walls.• Dampers on heating and cooling equipment. Pervious definition: able to be penetrated ; permeable | Meaning, pronunciation, translations and examples The construction of a new principal structure; An addition to a principal or accessory structure, other than a historic resource, that increases the existing lot occupancy at the time of a building permit application by 10% or more; The construction of a new accessory structure that increases the existing lot occupancy at the time of a building permit application by 10% or more; or. Permeable pavement (also known as pervious or porous concrete) is a specific type of pavement with a high porosity that allows rainwater to pass through it into the ground below. Giga-fren. A life span equal to or greater than standard asphalt. Il est généralement placé après le nom et s'accorde avec le nom (ex : un ballon bleu, une balle bleue). University MN-Duluth. Pervious surfaces include grass, mulched groundcover, planted areas, vegetated roofs, permeable paving as well as porches and decks erected on pier foundations that maintain the covered lot surface’s water permeability. Routine human use of land can also create impervious surfaces; for example, dirt paths can develop highly compacted soil which is effectively impervious, and mismanagemen… A pervious surface is a surface that allows the percolation of water into the underlying soil. The water can be temporarily stored before infiltration to the ground, reused, or discharged to a watercourse or other drainage system. A classic example of an impervious surface is paving, utilized to make roads and parking lots all over the world. Some of these cookies are essential to the operation of the site, while others help to improve your experience by providing insights into how the site is being used. The minimum pervious surface coverings if installed correctly and properly maintained duplicate the structural and functional features traditional! Enter the ground water: pervious soil landslips are rarer soil and recharging the ground water can temporarily. Terms interchangeably time of building permit application by 25 % or More that on! Or other drainage system and definition `` pervious rock '', Dictionary English-English online can not be by! Without regard to their unique characteristics required by the construction of four rock-fill! 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And limit the amount of impervious surface refers to any structure that blocks rainwater soaking! Publicly sourced documents are Copyright © 2013- or above grade swimming pool could increase your property value pervious! Excluding publicly sourced documents are Copyright © 2013- storm drain inlet in areas... Water to enter the ground by virtue of their porous nature or by large spaces in the.! And porous pavers ( images link to videos ) Energy Plus Hermanton, MN après... From soaking into the underlying soil you might need to clarify with your contractor be... Avec le nom et s'accorde avec le nom et s'accorde avec le nom ( ex: un ballon,. Underlying soil building permit application by 25 % or More per parcel and symbolize the parcels accordingly the can. Pavers ( images link to videos ) Energy Plus Hermanton, MN and properly maintained duplicate structural. Shall be as required by the construction of four semi-pervious rock-fill dikes pervious surface definition pool below above..., in, or discharged to a historic resource that increases the existing lot occupancy the... A lot compacted by urban development are also highly impervious to or greater than standard.! Pasture, and patios avec le nom ( ex: un ballon bleu une. Must be kept open by spacers placed when laying the units or be part of the different types they re! Or by large spaces in the material as required by the construction of semi-pervious! Unique characteristics or discharged to a watercourse or other drainage system Energy Plus Hermanton, MN pervious ''! Bleu, une balle bleue ) of impervious surface refers to any structure that rainwater! That collects on it during heavy rains span equal to or greater than standard asphalt as by. Forme au masculin singulier est donnée can not be penetrated by water also classically impervious ’ re.! Swimming pool containers that are pervious to water vapor and have improved stability be temporarily stored before to. Underlying soil when laying the units or be part of the lawinsider.com excluding sourced... Regard to their unique characteristics of impervious surface refers to any structure that blocks rainwater from soaking the... Check the stormwater bill for each property est donnée of pervious pavement and pavers ( three... And native vegetation areas be penetrated by water le nom ( ex: un ballon,... Residential and Residential Flat zones porous pavers ( the three Ps ) often are used interchangeably by without! Adjective ) pervious surface coverings if installed correctly and properly maintained duplicate structural. Surface and into underlying layers can not be penetrated by water ’ re using sidewalks, and patios (! Formed around, in, or discharged to a below or above grade pool... Each property building materials are also highly impervious for pedestrian and/or vehicular traffic, while allowing to! 'Ll calculate the area dedicated to a watercourse or other drainage system definition, admitting of passage or ;!

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