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http://www.pdhcenter.com/courses/h101/h101.htm

http://www.floods.org/

http://msc.fema.gov

Probably best choice for storm or waste water, is "None". Gate valves are NOT designed to be used as throttling or flow control vales . They are intended to be shutoff valves to remain fully open or fully closed. Other types to consider are : Plug Valve Slide Gates Swing Gates "Duck bill: Tide...

While I'm on this soapbox; Watch out for "Greenwashing" and "Notional Engineering" which is published mainly by Art History Majors ( Dropouts who got jobs as regulators of something ) based on No Scientific Evidence whatever. By the way, these people consider "whatever" a complete sentence...

http://sefora.org/

You are having trouble finding it because Civil Engineering News, or CE News is NOT published by ASCE. Rather it is published by Stagnito. Google CENews and you'll find it. It is free but the cost is that it is mostly advertising or thinly veiled advertising of technical articles designed to...

"How do you calculate the critical Storm? " Depends on how you choose to define the Critical Storm. But it is almost certainly NOT the so called 100 year storm, which has nothing to do with 100 years.

Add one to your gleanings. Get licensed in New York.

Have you considered measuring it on a sample plot of ground ?

Yes. I have one published in the 1970s but not easily posted here. There is also an AWWA Handbokk called " Sizing Water Service Lines and Meters ( don't have the number handy ) Also your local water supplier may have guidelines or even requirements. Also water meter manufacturers have voluminous...

http://joshmadison.com/software/convert-for-windows/

Just a guess but in my part of the U.S. ( Oregon ) this would probably be designated (6"-0 ) or 6-inch minus crushed rock. Meaning a well graded crushed rock varying in sieve size from 6-inches down to 0 inches with only a very small fraction smaller than 200 sieve. These things are generally...

http://www.watersanitationhygiene.org/forum/phpBB3/viewtopic.php?f=12&t=49

Yes, you do need to assign realistic elevations to all points in the system. I do not use the method you have outlined to EPANet analyses so I don't understand how it works but pressure, energy and flow of water in any system depend on elevation. You may be able to find an example in the EPANet...

It may not be quite that simple. You need to model the flow at the most critical point in your proposed system. This is not necessarily the point of connection. It will probably be at the most hydraulically remote point which may or may not be at the highest point. You need to model the...

It is also difficult in many cases to get HEC-II and HEC-RAS to match and FEMA does NOT require that they do.

The following is from a list of locally approved hydrology models approved by FEMA: "Colorado Urban Hydrograph Procedure (CUHPF/PC) (May 1996 and May 2002) Denver Urban Drainage and Flood Control District Denver Urban Drainage and Flood Control District 2480 West 26th Avenue, Suite 156-B...

"TR-55 is a hydrology modeling software as are HEC-1 and HEC-HMS. FEMA requires matching an existing HEC-1 model with a HEC-HMS model" Where and for what reason does FEMA "require" such matching ?

Yes.