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2. Drainage gradient - Wikipedia

   en.wikipedia.org/wiki/Drainage_gradient

   Drainage gradient (DG) is a term in road design, defined as the combined slope due to road surface cross slope (CS) and longitudinal slope (hilliness). Although the term may not be used, the concept is also used in roof design and landscape architecture. If the drainage gradient is too low, rain and melt water drainage will be insufficient.

3. Bioswale - Wikipedia

   en.wikipedia.org/wiki/Bioswale

   Bioswales are typically vegetated, mulched, or xeriscaped. [1] They consist of a swaled drainage course with gently sloped sides (less than 6%). [2]: 19 Bioswale design is intended to safely maximize the time water spends in the swale, which aids the collection and removal of pollutants, silt and debris. Depending on the site topography, the ...

4. Grading (earthworks) - Wikipedia

   en.wikipedia.org/wiki/Grading_(earthworks)

   Section through railway track and foundation showing the sub-grade. Grading in civil engineering and landscape architectural construction is the work of ensuring a level base, or one with a specified slope, [1] for a construction work such as a foundation, the base course for a road or a railway, or landscape and garden improvements, or surface drainage.

5. Site plan - Wikipedia

   en.wikipedia.org/wiki/Site_plan

   Sites plan typically show buildings, roads, sidewalks and paths/trails, parking, drainage facilities, sanitary sewer lines, water lines, lighting, and landscaping and garden elements. [1] Such a plan of a site is a "graphic representation of the arrangement of buildings, parking, drives, landscaping and any other structure that is part of a ...

6. Swale (landform) - Wikipedia

   en.wikipedia.org/wiki/Swale_(landform)

   This archetypal form of swale is a dug-out, sloped, often grassed or reeded "ditch" or "lull" in the landform. One option involves piling the soil onto a new bank on the still lower slope, in which case a bund or berm is formed, mitigating the natural (and often hardscape-increased ) risks to slopes below and to any linked watercourse from ...

7. Drainage equation - Wikipedia

   en.wikipedia.org/wiki/Drainage_equation

   Theoretically, Hooghoudt's equation can also be used for sloping land. [8] The theory on drainage of sloping land is corroborated by the results of sand tank experiments. [9] In addition, the entrance resistance encountered by the water upon entering the drains can be accounted for. Definitions of drainage of sloping land and entrance resistance

8. City of Harlingen revises subdivision drainage plans - AOL

   www.aol.com/news/city-harlingen-revises...

   Oct. 20—HARLINGEN — Revised subdivision drainage standards could cut developers' costs they argue have been boosting lot prices here. Now, developers might not be required to build costly ...

9. Grade (slope) - Wikipedia

   en.wikipedia.org/wiki/Grade_(slope)

   Grade, pitch, and slope are important components in landscape design, garden design, landscape architecture, and architecture; for engineering and aesthetic design factors. Drainage, slope stability, circulation of people and vehicles, complying with building codes, and design integration are all aspects of slope considerations in environmental ...