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Have fun.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16089.html Tue, 18 Nov 2008 08:22:53 -0700
1. Conveyance ratio is either less than 0.7 or greater than 1.4, this may indicate a need for additional XS
2. The Velocity Head has changed by more than 0.5ft. this may indicate a need for additional XS
3.The Energy loss was greater that 1.0 ft between current and previous XS, this may indicate a need for additional XS
...

P.S. I have added new XS at the RS where the warnings are fired off, but that didn't address the warning
thanks[/QUOTE]
Thanks, the warnings show uo at all bridges, but also show up at other regular XS. I will try interpolating more XS in between.

thanks]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16186.html Fri, 14 Nov 2008 11:23:34 -0700
If it is just regular cross sections, intepolating enough cross sections will usually fix the problem (unless there is something more serious going on).]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16186.html Fri, 14 Nov 2008 06:33:37 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16185.html Fri, 14 Nov 2008 06:29:27 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16185.html Fri, 14 Nov 2008 03:23:43 -0700 So the method used is "Energy only".
Thanks for you reply]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16184.html Fri, 14 Nov 2008 01:54:43 -0700
I am having some problems with the observed file. I am trying to calibrate some parameter with SRTC, but when I open my tsf with the observed inlow the program does not read it. I can open but the graph is empty, with no values.

The file is attached, I really apreciate if someone could help me.

Thanks

Milena Collodel]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16187.html Fri, 14 Nov 2008 00:52:46 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16182.html Thu, 13 Nov 2008 13:13:54 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16174.html Thu, 13 Nov 2008 13:06:32 -0700
If so, from the bridge editor, click on Options and select "Internal Bridge Cross Sections"]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16185.html Thu, 13 Nov 2008 11:40:58 -0700
Go to the bridge specific output table and look at the bottom. Are there any warnings, such as, "for the final momentum answer, the upstream energy was lower than the downstream energy...."]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16184.html Thu, 13 Nov 2008 11:37:39 -0700
1. Conveyance ratio is either less than 0.7 or greater than 1.4, this may indicate a need for additional XS
2. The Velocity Head has changed by more than 0.5ft. this may indicate a need for additional XS
3.The Energy loss was greater that 1.0 ft between current and previous XS, this may indicate a need for additional XS
...

P.S. I have added new XS at the RS where the warnings are fired off, but that didn't address the warning
thanks]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16186.html Thu, 13 Nov 2008 10:37:04 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16185.html Thu, 13 Nov 2008 07:06:00 -0700 Thanks if someone can help me.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16184.html Thu, 13 Nov 2008 05:13:33 -0700
You should find that the report will now be very presentable.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16183.html Wed, 12 Nov 2008 16:59:45 -0700
Does anyone have any tips on exporting or copying the text output files into Word and have it appear in an orderly manner? I find that when the text is transfered things become jumbled due to the use of spaces instead of tabs. Really, I just want to have things appear a bit normal without having to go through and manually edit every line to get an acceptable appearance. Thanks!]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16183.html Wed, 12 Nov 2008 08:02:18 -0700
I have run method 4 on all of my cross-sections using equal conveyance reduction and propotional conveyance reduction and am not happy with the floodway it produces.

For example:
I have a section where the channel almost runs up against the left valley wall. The method 4 encroachment specifies a large encroachment along the right floodplain but not all the way to the channel and a small encroachment on the left side. I would like to force hec ras to continue encroaching on the right floodplain before encroaching on the left.

Thanks]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16182.html Tue, 11 Nov 2008 10:06:28 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/10909.html Mon, 10 Nov 2008 10:59:29 -0700
After you have created a restart file, you can't change the geometry. So if you are trying to create a restart file, leave all the structures in place.

However, you may not really need a restart file. Stability problems can be tricky, especially for new users. If you fix underlying problems, you may find that you don't need a restart file at all.

When trying to build a stable model, I generally leave the structures in. If I was going to remove structures, I would probably remove lateral structures before bridges/culverts. For a large data set, I will sometimes remove a large chunk and work on a smaller section--for instance, the downstream most section.

Unless the channels are huge, 2500 cfs for an area that is normally dry sounds rather high. You might want to investigate "pilot channels" to see if you can use a smaller base flow. 30 min time step also sounds on the large side, unless it is a fairly large, sluggish system. If reducing the time step significantly changes the results (or causes its own stability issues) then the time step is probably too large.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16180.html Mon, 10 Nov 2008 07:57:18 -0700
I am new user for Hecras 4. I am in stuck in entering data in " Steady Flow Data " . In that Window, under profile names and Flow rates, How we can change PF#1, PF#2 and PF#3 to 10 yr, 50Yr and 100 yr. Also what about the flow rates. How we get flows for these events. I will appreciate much much for for yours help.

Thanks]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16181.html Sun, 09 Nov 2008 11:33:24 -0700