Single Stream/Stead Flow Culvert

[Anonymous]

Its been awhile since I have modeled with HEC-RAS and have previously done simple single stream models and I am struggling with a seemingly easy model.

I have an existing stream channel of approximately 500 feet with an existing culvert around 400 feet down stream.

I feel like I have the model set up correctly but it gives an obviously incorrect result showing the stream over topping my roadway bu 7-8 feet even under small 1-years (which we know is not happening in the field).

I have attached the project file – can anyone point me in the right direction?

Thanks in advance!

https://www.dropbox.com/s/3y4n96pb96icw4z/ReichesFordRoad_E.p01.zip?dl=0

[markwood]

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Sat, 21 Feb 2015 12:05:08 -0800
From: “Markwood, David”
To: “Andy [via HEC-RAS Help]”
Subject: RE: Single Stream/Stead Flow Culvert
Thread-Topic: Single Stream/Stead Flow Culvert
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Date: Sat, 21 Feb 2015 20:05:08 +0000
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Andy,

It looks like the XS’s are in reverse. That is, RS 544.46 is the first XS i=
n the model (or intended to be), yet it has the most-upstream River Station=
.
Let me know if that isn’t helpful.

From: Andy [via HEC-RAS Help] [mailto:[email protected]=
m]
Sent: Saturday, February 21, 2015 10:35 AM
To: Markwood, David
Subject: Single Stream/Stead Flow Culvert

Its been awhile since I have modeled with HEC-RAS and have previously done =
simple single stream models and I am struggling with a seemingly easy model=
.

I have an existing stream channel of approximately 500 feet with an existin=
g culvert around 400 feet down stream.

I feel like I have the model set up correctly but it gives an obviously inc=
orrect result showing the stream over topping my roadway bu 7-8 feet even u=
nder small 1-years (which we know is not happening in the field).

I have attached the project file – can anyone point me in the right direct=
ion?

Thanks in advance!

https://www.dropbox.com/s/3y4n96pb96icw4z/ReichesFordRoad_E.p01.zip?dl=3D0
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Andy,

 

It looks like the XS’s =
are in reverse. That is, RS 544.46 is the first XS in the model (or intende=
d to be), yet it has the most-upstream River Station.

Let me know if that isn&#8217=
;t helpful.

 

 

From: Andy [vi=
a HEC-RAS Help] [mailto:ml-node+[email protected]]

Sent: Saturday, February 21, 2015 10:35 AM
To: Markwood, David
Subject: Single Stream/Stead Flow Culvert

 

Its been awhile since=
I have modeled with HEC-RAS and have previously done simple single stream =
models and I am struggling with a seemingly easy model.

I have an existing stream channel of approximately 500 feet with an existin=
g culvert around 400 feet down stream.

I feel like I have the model set up correctly but it gives an obviously inc=
orrect result showing the stream over topping my roadway bu 7-8 feet even u=
nder small 1-years (which we know is not happening in the field).

I have attached the project file  – can anyone point me in the right d=
irection?

Thanks in advance!

https://www.dropbox.com/s/3y4n96pb96icw4z/Reich=
esFordRoad_E.p01.zip?dl=3D0

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[Anonymous]

Thanks Mark that did it!

[Author]

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