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*Don Reichle
Message 21 of 24 (789 Views)

Re: HEC-RAS Import & Export

08-18-2006 07:28 PM in reply to: *neilw
OK Neil - I just used HEC-RAS 3.1.3 on a test of the Hydrology>HEC2
Output>HEC2-Multiple file I created as a test on my EG Surface.

I made sure that I used a polyline going in the opposite direction of flow.
Supplied both the Ground Elevation and the Flow cfs.

Went through without a hitch for me.

A couple of my 49 sections (50ft interval) could have been increased in
width, but the computation for both Steady/Unsteady Flow Simulation provided
the flow data that you would expect.

So I had another go with 100ft Left/Right widths, and this time started with
Critical Depth.

It took me about a half-hour on the 2nd time through.

Since I was doing this after work-hours I could spend the time necessary to
complete the edits, without being distracted by a Project's "needs".

Again - no issues at all.

HTH

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5273558@discussion.autodesk.com...
Hi Jesse,

We have been using that method as well. It is manageable but you can end
with over 100 alignments in your project which is a bit of a pain. The
bottom line is the LDT HEC tool is basically useless because of the way it
was designed. Hopefully the stuff being developed for C3D will bridge the
gap. For now it looks like we are stuck with a tedious job to get there no
matter what we do.

Thanks for the suggestion.

"jd-drafter" wrote in message
news:5273515@discussion.autodesk.com...
hey there... you two...

in the past i have had to end up defining the cross sections as actual
alignments- and manipulate the data as such-

specifically for the angled sections that are a part of the post... not
pretty but accurate... using the vert/alignment editor's report functions to
export the cros section/alignment data is key... and yes it does leave some
cleanup to do...

wading in a sea of imperfection does help us accomodate certain things at
times... 8^)

jjd


"neilw" wrote in message
news:5272765@discussion.autodesk.com...
I'll wait and see what else comes along in the way of replies. Ultimately we
may end up having to use ArcGIS to be the "middle man" between CAD and
HEC-RAS.

"Don Reichle" wrote in message
news:5272661@discussion.autodesk.com...
I didn't yet have any of those Neil, but I know that they await. ;-)

Not near enough to the Verde River in the Lowlands around our area for the
current set of Projects. The "trial" streams haven't had any hair-pin turns
in them to produce those V-type sections for HEC-RAS to get agita over.

Notice I said "yet" in the primary sentence? ;-)

I've noticed that there are a few "washes" along 260, where this condition
looks like a possibility also.

Time will tell.

Maybe since our topography is more conducive towards "narrow" channels, they
may not be as prevalent. We can then use less of a Left/Right dimension to
define the channel?

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5272635@discussion.autodesk.com...
How did you handle "bent" cross sections Don?

"Don Reichle" wrote in message
news:5272567@discussion.autodesk.com...
Neil I did this recently with the Hydrology>HEC2 Output>HEC2 Multiple and
got what I needed in HEC-RAS.

The only thing I was reminded of is that H-R deals in the "opposite"
direction for Flow than I'm used to thinking about it - downstream to
upstream.

If I've still got it "incorrect" I'm willing to be wrong - as necessary. ;-)

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5272519@discussion.autodesk.com...
Can anyone provide sources/advice on how to import and export cross section
and analysis data between LDT/CIVIL Design 2004 and HEC-RAS?

The HEC-2 routines in Civil Design do not allow for bends in the cross
section sample lines. I have been contemplating projecting polylines to the
DTM to create 3D polylines and then using Map to create report queries of
the polylines which could be imported into a spreadsheet and edited to meet
the data input format requirements of HEC-RAS, but this is a lot of work
considering people are doing this regularly. There must be a simpler way.
*neilw
Message 22 of 24 (789 Views)

Re: HEC-RAS Import & Export

08-18-2006 08:37 PM in reply to: *neilw
Hi Don, I don't doubt that the LDT HEC-2 functions will work under the right
conditions. It's the limitations that are the problem. We need to calibrate
our analysis project to match that of another engineer in order to do some
revisions in his calculations. (No need to go into why here). Thus we need
to match his sections which have bends in them as they should according to
the criteria for doing the analysis.

I hope your little experiment was educational :smileyhappy:

"Don Reichle" wrote in message
news:5273961@discussion.autodesk.com...
OK Neil - I just used HEC-RAS 3.1.3 on a test of the Hydrology>HEC2
Output>HEC2-Multiple file I created as a test on my EG Surface.

I made sure that I used a polyline going in the opposite direction of flow.
Supplied both the Ground Elevation and the Flow cfs.

Went through without a hitch for me.

A couple of my 49 sections (50ft interval) could have been increased in
width, but the computation for both Steady/Unsteady Flow Simulation provided
the flow data that you would expect.

So I had another go with 100ft Left/Right widths, and this time started with
Critical Depth.

It took me about a half-hour on the 2nd time through.

Since I was doing this after work-hours I could spend the time necessary to
complete the edits, without being distracted by a Project's "needs".

Again - no issues at all.

HTH

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5273558@discussion.autodesk.com...
Hi Jesse,

We have been using that method as well. It is manageable but you can end
with over 100 alignments in your project which is a bit of a pain. The
bottom line is the LDT HEC tool is basically useless because of the way it
was designed. Hopefully the stuff being developed for C3D will bridge the
gap. For now it looks like we are stuck with a tedious job to get there no
matter what we do.

Thanks for the suggestion.

"jd-drafter" wrote in message
news:5273515@discussion.autodesk.com...
hey there... you two...

in the past i have had to end up defining the cross sections as actual
alignments- and manipulate the data as such-

specifically for the angled sections that are a part of the post... not
pretty but accurate... using the vert/alignment editor's report functions to
export the cros section/alignment data is key... and yes it does leave some
cleanup to do...

wading in a sea of imperfection does help us accomodate certain things at
times... 8^)

jjd


"neilw" wrote in message
news:5272765@discussion.autodesk.com...
I'll wait and see what else comes along in the way of replies. Ultimately we
may end up having to use ArcGIS to be the "middle man" between CAD and
HEC-RAS.

"Don Reichle" wrote in message
news:5272661@discussion.autodesk.com...
I didn't yet have any of those Neil, but I know that they await. ;-)

Not near enough to the Verde River in the Lowlands around our area for the
current set of Projects. The "trial" streams haven't had any hair-pin turns
in them to produce those V-type sections for HEC-RAS to get agita over.

Notice I said "yet" in the primary sentence? ;-)

I've noticed that there are a few "washes" along 260, where this condition
looks like a possibility also.

Time will tell.

Maybe since our topography is more conducive towards "narrow" channels, they
may not be as prevalent. We can then use less of a Left/Right dimension to
define the channel?

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5272635@discussion.autodesk.com...
How did you handle "bent" cross sections Don?

"Don Reichle" wrote in message
news:5272567@discussion.autodesk.com...
Neil I did this recently with the Hydrology>HEC2 Output>HEC2 Multiple and
got what I needed in HEC-RAS.

The only thing I was reminded of is that H-R deals in the "opposite"
direction for Flow than I'm used to thinking about it - downstream to
upstream.

If I've still got it "incorrect" I'm willing to be wrong - as necessary. ;-)

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5272519@discussion.autodesk.com...
Can anyone provide sources/advice on how to import and export cross section
and analysis data between LDT/CIVIL Design 2004 and HEC-RAS?

The HEC-2 routines in Civil Design do not allow for bends in the cross
section sample lines. I have been contemplating projecting polylines to the
DTM to create 3D polylines and then using Map to create report queries of
the polylines which could be imported into a spreadsheet and edited to meet
the data input format requirements of HEC-RAS, but this is a lot of work
considering people are doing this regularly. There must be a simpler way.
*Don Reichle
Message 23 of 24 (789 Views)

Re: HEC-RAS Import & Export

08-20-2006 01:58 PM in reply to: *neilw
snip>I hope your little experiment was educational :smileyhappy:
I get an "education" anytime I work with LDT Neil. ;-)

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5274006@discussion.autodesk.com...
Hi Don, I don't doubt that the LDT HEC-2 functions will work under the right
conditions. It's the limitations that are the problem. We need to calibrate
our analysis project to match that of another engineer in order to do some
revisions in his calculations. (No need to go into why here). Thus we need
to match his sections which have bends in them as they should according to
the criteria for doing the analysis.

I hope your little experiment was educational :smileyhappy:

"Don Reichle" wrote in message
news:5273961@discussion.autodesk.com...
OK Neil - I just used HEC-RAS 3.1.3 on a test of the Hydrology>HEC2
Output>HEC2-Multiple file I created as a test on my EG Surface.

I made sure that I used a polyline going in the opposite direction of flow.
Supplied both the Ground Elevation and the Flow cfs.

Went through without a hitch for me.

A couple of my 49 sections (50ft interval) could have been increased in
width, but the computation for both Steady/Unsteady Flow Simulation provided
the flow data that you would expect.

So I had another go with 100ft Left/Right widths, and this time started with
Critical Depth.

It took me about a half-hour on the 2nd time through.

Since I was doing this after work-hours I could spend the time necessary to
complete the edits, without being distracted by a Project's "needs".

Again - no issues at all.

HTH

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5273558@discussion.autodesk.com...
Hi Jesse,

We have been using that method as well. It is manageable but you can end
with over 100 alignments in your project which is a bit of a pain. The
bottom line is the LDT HEC tool is basically useless because of the way it
was designed. Hopefully the stuff being developed for C3D will bridge the
gap. For now it looks like we are stuck with a tedious job to get there no
matter what we do.

Thanks for the suggestion.

"jd-drafter" wrote in message
news:5273515@discussion.autodesk.com...
hey there... you two...

in the past i have had to end up defining the cross sections as actual
alignments- and manipulate the data as such-

specifically for the angled sections that are a part of the post... not
pretty but accurate... using the vert/alignment editor's report functions to
export the cros section/alignment data is key... and yes it does leave some
cleanup to do...

wading in a sea of imperfection does help us accomodate certain things at
times... 8^)

jjd


"neilw" wrote in message
news:5272765@discussion.autodesk.com...
I'll wait and see what else comes along in the way of replies. Ultimately we
may end up having to use ArcGIS to be the "middle man" between CAD and
HEC-RAS.

"Don Reichle" wrote in message
news:5272661@discussion.autodesk.com...
I didn't yet have any of those Neil, but I know that they await. ;-)

Not near enough to the Verde River in the Lowlands around our area for the
current set of Projects. The "trial" streams haven't had any hair-pin turns
in them to produce those V-type sections for HEC-RAS to get agita over.

Notice I said "yet" in the primary sentence? ;-)

I've noticed that there are a few "washes" along 260, where this condition
looks like a possibility also.

Time will tell.

Maybe since our topography is more conducive towards "narrow" channels, they
may not be as prevalent. We can then use less of a Left/Right dimension to
define the channel?

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5272635@discussion.autodesk.com...
How did you handle "bent" cross sections Don?

"Don Reichle" wrote in message
news:5272567@discussion.autodesk.com...
Neil I did this recently with the Hydrology>HEC2 Output>HEC2 Multiple and
got what I needed in HEC-RAS.

The only thing I was reminded of is that H-R deals in the "opposite"
direction for Flow than I'm used to thinking about it - downstream to
upstream.

If I've still got it "incorrect" I'm willing to be wrong - as necessary. ;-)

--
Don Reichle
"The only thing worse
than training your staff,
and having them leave is -
not training your staff,
and having them stay."
Courtesy Graphics Solution Providers
----------------------------------------------------------
!! Please discuss whatever we tell you with your SysMgr !!
!! They appreciate staying in the loop :-) !!

LDT/CD-2K4
AMD Athlon 64 X2 Dual-Core 3800+ 2.01GHz
XP-Pro 32bit SP2
2GB RAM
Dual WD800JD Hard Drives - 149GB Nvidia Stripe
Nvidia Quadro FX 1300 128MB
Dual ViewSonic 19-inch VA902b monitors

"The only Constant is Change".


"neilw" wrote in message
news:5272519@discussion.autodesk.com...
Can anyone provide sources/advice on how to import and export cross section
and analysis data between LDT/CIVIL Design 2004 and HEC-RAS?

The HEC-2 routines in Civil Design do not allow for bends in the cross
section sample lines. I have been contemplating projecting polylines to the
DTM to create 3D polylines and then using Map to create report queries of
the polylines which could be imported into a spreadsheet and edited to meet
the data input format requirements of HEC-RAS, but this is a lot of work
considering people are doing this regularly. There must be a simpler way.
New Member
draculius
Posts: 2
Registered: ‎03-04-2013
Message 24 of 24 (746 Views)

Re: HEC-RAS Import & Export

03-04-2013 03:56 AM in reply to: *neilw

If i have 2 rivers (2 aligments). Can I export this 2 to hec ras ? How can I join (edit the junction on hec-ras) them ? 

 

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