a street curb an alley Perforated subsoil piping laid in any of the above crushed rock must have no less than _______ of the crushed rock It is permissible to use a concrete gutter surrounding the pipe. to route the discharge from a subsoil 2 inches drain to an alley. 4 inches No, it is not acceptable to 12 inches discharge stormwater into an 6 inches alley. 14 inches Yes, this is permitted, provided the concrete gutter is no less Subsoil drainage shall be piped to than 4 inches in diameter. _________. Yes, this is permitted, provided a drain the discharge runs to an approved water course rain in the alley.
Perforated subsoil piping laid in crushed rock must have no less than _______ of the crushed rock surrounding the pipe. 2 inches 4 inches 12 inches 6 inches 14 inches Subsoil drainage shall be piped to _________. a drain an approved water course a street curb an alley any of the above It is permissible to use a concrete gutter to route the discharge from a subsoil drain to an alley. No, it is not acceptable to discharge stormwater into an alley. Yes, this is permitted, provided the concrete gutter is no less than 4 inches in diameter. Yes, this is permitted, provided the discharge runs to rain in the alley.
2015%20UPC%20Ch%2011%20Storm%20Drainage%20Quiz%20_WA.docx