What would be the main reason(s) for encasing in concrete a 48-inch steel main crossing perpendicularly under another 48-inch steel main? The main is to be encased even if the specified minimum (12") clearance between the mains is achieved.
I have seen conflicting specifications regarding whether shop drawings or laying schedules follow the approved geometry drawings of trunk water mains. Any thoughts on this?
What would be the best, concise definition of "bridge hardening"? Or, in other words, when used in general terms what is "bridge hardening". Though a civil engineer, this not my field. Thank you.
I recently saw a configuration that included two(2) 48-inch butterfly valves proposed to be installed a few feet from each other. There was nothing in between the valves--i,e. no pipes, no fittings, no special pieces, etc. The valves were proposed for a pipe that connecting two separate shaft...
I recently read the following: "check the quantity of freeboard below the [catch]basin hood." In this context, is "freeboard" to be understood as the available holding capacity (of a particular catch basin) before the water it collects reaches the level of the overflow line?
