Inlet and catch basin in a sloping site

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    Gang Chen (Edited )

    Typically, you will see a trench drain or catch basin near the drive entrance or exit of the site because most likely you will be required to have zero run-off to a public street or adjacent properties. The rest you can work with your civil engineer and locate them, In ARE exam, if you are asked to locate the catch basins or trench drains and so on, NCARB will provide some kind of criteria for you to lay them out.

    Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)

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    Rebekka O'Melia

    Water has to slope into it.  On a large sloping site or street, there will be one every 120' or so.    A gutter can be built to slope to it, if needed.

    Hope this helps!

    Rebekka O'Melia, B.Arch, M. Ed, Registered Architect, NCARB, ​​Step Up ARE Coaching​​​

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    Daniel Pleitez

    Thank you

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    Gang Chen

    Different areas have different rainfall data, so, in real ARE exams, if you encounter these kinds of questions, NCARB will give you a certain criteria, such as a catch basin  for an area up to 18,000 s.f. and so on…

    Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)

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    Daniel Pleitez

    Understood. Do you happen to know, Where would be a good place to find graphic representations of inlet locations in a sloping site as examples?

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    Gang Chen

    Pick a project and read the civil plans. You will learn a lot by simply reading the consultant's plans.

    Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)

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    Michael Ermann

    Help with reading contour lines here(number 34) https://www.youtube.com/playlist?list=PLRqQUel8W0R71cVQvIkcQ529D93rr2ggh

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    Munira Karimjee

    Hi Daniel,

    I think Chapter 18 of MEEB (12th edition) is good for storm drainage. Although I realize this might not be quite what you're looking for, PG 818, figure 18.18 is the closest thing I can think of as far as graphic representations of inlet locations go.

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