Vista Ridge 1R-8 D-CS050516From: Keith Marvin
To: Ross, Casey
Date: 5/16/2005 2:41:26 PM
Subject: Re: FW: The Plaza
Casey,
I see nothing in the email from Carla that indicates TXDoT is agreeable to the proposed access location.
In fact it appears she can't determine the exact location of the proposed tie in from the information
provided to her. Typically these general discussions of whether or not something like this would be
allowed take place much sooner in the process than this.
I'm not as concerned about the City of Lewisville, simply because I know you have been working with
them, and that changes are being made to the plans based on comments from them. We will still need an
approval letter, or a copy of their permit for our records, but I won't hold up your grading waiting for that
letter.
I strongly suggest that you resolve the TXDoT issue prior to commencing any work on the site.
That having been said, the City of Coppell will issue an early grading permit if one is requested, and ail of
the appropriate documentation is provided including the hold harmless letter. This particular hold
harmless letter should include a statement by the developer acknowledging the fact that no approval has
been granted by TXDoT for connection to their roadway in the location shown on the plans, and that the
City of Coppell shall be held harmless for any changes to the development plans based on comments, or
requirements of TXDot and/or the City of Lewisville.
With those specific requirements we would allow you to proceed with grading on your property and within
City of Coppell Right of Way. No grading shall take place within the TXDoT ROW or the City of Lewisville
ROW under this permit. Permission must be received from those entities prior to commencing said work.
When permission has been received, please copy this office with those permits.
Keith R. Marvin, P.E.
City of Coppell
(972) 304-7044
kmarvin@ci.coppell.tx.us
>>> "Casey Ross" <cross@daa-civil.com> 05/16/05 1:31 PM >>>
Keith,
This is the response I received from Carla last Wednesday
morning. It appears she has a few comments and will not approve a
permit connection at this time. I have put in a call to her today to
discuss, but she is out until tomorrow. I have already begun addressing
her preliminary comments so we can have a quick turn-around when we
receive a hard copy of the comments. I hope this satisfies any concerns
you have for letting us proceed. I have also been in contact with David
Salmon at the City of Lewisville. I tried to reach him today to get a
letter written, but I was told he is on vacation until May 31st. Please
let me know if I can do anything further to be of assistance.
Sincerely,
Casey Ross
From: Carla Bates [mailto:CBATES~,dot.state.tx.us]
Sent: Tuesday, May 10, 2005 6:23 PM
To: Casey Ross
Cc: dsalm on (~,cityoflewisville.com
Subject: The Plaza
Casey:
Since I will be in training until the afternoon, I thought I would send
some comments you can be addressing.
I don't see any points that indicate where the proposed Plaza Blvd. ties
into SH 121 i.e., upstream and downstream access connections and more
importantly where the exit ramp is in relation to the development. The
vicinity maps on the cover sheet and the final plat aren't the same.
The final plat shows a proposed street between Ridgemont Dr. and
somewhere on the Coppell/Lewisville line but does not show the proposed
Plaza Blvd. connection to SH 121.
Also, you are showing a fully developed drainage area map. Can you
provide a pre-development DA map? You are locating inlets on the DA maps
by station numbers; please provide stationing. You are showing inlets
on Lewisville Dr. but I don't see that street labeled. The overall
grading plan does not show SH 121.
You are showing plan and profile for Storm Sewer Line A, presumably
because it is the only line that ties directly into our system.
However, all runoff in this area comes to the State storm drain system.
I need to see plan and profile for all storm sewer lines including
calculations showing existing flow in 60" existing RCP, how much flow
you will be adding and calcs showing that the cumulative flow entering
our system where you want to tie Line A into the back inlet will not
blow out the inlet.
TxDOT does not use the rational method to design.or analyze inlets. If
you need the calculations we use in urban storm drain design, I can get
those to you.
So much for my preliminary review. This ought to keep you busy until I'm
back in the office. I'm sorry but at this time I can not state that any
access will be granted until the above comments are addressed.
You can call me at 972-479-9747.
Carla
CC: Bates, Carla; Caruthers, Scott; dsalmon@cityoflewisville.com; jspean@aol.com;
LaMattina, Charlene; nealheckel@sbcglobal.net