Ridgecrest-CS130129
Rhonda Adloo
From:Colin Helffrich <chelffrich@daa-civil.com>
Sent:Tuesday, January 29, 2013 2:38 PM
To:Michael Garza; Keith Marvin
Subject:Ridgecrest Estates
Gentlemen,
I received a call from my contractor saying we needed to add concrete cap on the storm sewer that is not deeper than
30” (per Larry Davis), that means about 160 LF of pipe needs capping. Keith, I know when the revisions came through in
late December you mentioned that a couple spots would need capping (approx. 20-30 LF) but not the entire storm
line. If we went by the 30” Larry is requiring us to use, our old plans would still have needed this concrete cap and there
was never a hint about this. Also, Larry is wanting us to increase the slope of STM-02 to 1.00%....I am not sure why this
is? This will only decrease the amount of cover we have. The proposed 0.62% is more than adequate to flush out the
drainage picked up in this storm system.
Please give me a call asap, as we are installing pipe right now and do not want to lose time.
Thank you.
Colin W. Helffrich, P.E.
Dowdey, Anderson & Associates, Inc.
5225 Village Creek Drive, Suite 200
Plano, Texas 75093
Phone: 972-931-0694
Mobile: 214-801-1717
Fax: 972-931-9538
www.daa-civil.com
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