ST0003-CS071128
(8/18/2009) Keith Marvin - Re: Coppell RoadPage 1
From: Keith Marvin
To:Roberts, Ken
Date: 11/28/2007 10:27 AM
Subject: Re: Coppell Road
Attachments:Temp shoring.doc; Shoring.pdf; Sewer.pdf
Ken,
We will use the city standard detail for driveway approaches on this project.
Please call me to discuss this grading behind the curb issue.
I have attached some plans and a copy of the pay item description for the temporary shoring from the East Sandy Lake
project for you r use. This is simply an example of how it has been done before.
We also need to discuss this sewer issue. I had understood that you reached an agreement with Suzan about the sewer
design.
Keith Marvin, P.E.
Project Engineer
(972) 304-3681
>>> "Roberts, Ken" <kar@Huitt-Zollars.com> 11/21/2007 5:33 PM >>>
Keith,
A few more things:
1. Your typical driveway section shows the driveway approach rising 6
inches from the gutter to the edge of the sidewalk crossing. On the
east side of Coppell Road this distance is 4.5 feet resulting in an
11.11% grade. Do you want to build the driveways this way or do you
have a maximum percent grade you would like to use for this section of
the driveway? We are getting ready to look at the cross-sections at all
the driveways and streets to revise them for ADA concerns. I have
attached a PDF of your detail for your reference. Let me know.
2. As far as grading between the sidewalks and right-of-way lines there
are several options. One is to grade out like the current
cross-sections show on private property. You would then need an
easement or letter of permission to do this grading. try grading out
between the sidewalk and right-of-way line and stay off of private
property. This would result in steep slopes within the right-of-way.
or a third option would be to construct sidewalk curbs and use flatter
slopes to grade out in the right-of-way. Let me know what you prefer
and we will take a look at it.
3. You made reference in your review to temporary shoring similar to the
East Sandy Lake Road project. Do you have a copy of the plans that you
can send us or we can pick up illustrating what you are talking about?
Thanks for your help,
Kenneth Roberts, PE
Huitt-Zollars, Inc.