DR1101-CS110510Page 1 of 1
Ken Griffin -North Lake status
From:
John Rutledge <JLR9freese.com>
To:
Ken Griffin <kgriffingci. copp ell. tx. us>
Date:
5/10/20119:36 AM
Subject:
North Lake status
CC:
Tricia Hatley <thhgfreese.com>
Attachments:
North lake Status 04301 I.Pdf
Ken, we've made good progress so far on North Lake. Attached is the progress report.
We're still waiting on Luminant to see if they have information for some borings that were done when they
improved the spillway several years ago. When we have that, we can make the call on what geotech is needed.
We will likely need 2 or 3, but, with Luminant's stuff, I'm hoping that will be sufficient for final design phase as
well.
When we have some more complete results, I'll give you a call and set up a meeting to go over them.
Thanks
JLR
John L. Rutledge, P.E.
Freese and Nichols, Inc.
4055 International Plaza St 200
Fort Worth, TX 76109
817 -735 -7284
jlr @freese.com
kwin
Bd !IF
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4055 International Plaza, Suite 200
., Fort Worth, TX 76109 -4895
Phone: (817) 735 -7300
F Fax: (817) 735 -7491
Freese and Nichols
www.freese.com Project Number: CPL11192
TO:
Ken Griffin
FROM:
John Rutledge
DATE:
May 10, 2011
RE:
North Lake Lowering Study
CPL11192 -2.10
CC:
Project Updates:
• Held Kickoff Meeting
• Met with Stakeholders
• Completed Hydrology
• Started review of Alternatives
• Started environmental review
• See attached for % complete status
Tasks and deliverables for May:
• Complete review of environmental permitting requirements
• Complete Alternatives Analysis, pending geotechnical findings
• Determine need for geotechnical exploration
Date: Next Deliverable:
May 23 Draft Memo on Environmental Findings
June 15 Draft Report (without geotechnical exploration)
July 15 Draft Report (with geotechnical exploration)
Additional Issues:
• Waiting on Luminant to look for boring logs from recent spillway improvements
City of Coppel
North Lake Dam Modifications
Status report 04 -30 -11
Task
Description
Task Total
% Complel
Fee Earner
1
Kickoff Meeting and Site visit Client and Internal)
$ 3,600
100%
$ 3,600
2
Meet with Stakeholders
$ 1,900
100%
$ 1,900
3
Gather & Review Data
$ 1,800
100%
$ 1,800
4
Identify Environmental Permitting requirements
$ 2,000
25%
$ 500
5
Geotechnical - Field Work
$ 10,300
0%
$ -
6
Goetechnical - lab work
$ 2,600
0%
$ -
7
Drawdown seepage and slope stability
$ 2,100
0%
$ -
8
H &H modelling
$ 2,300
100%
$ 2,300
9
Two configurations
$ 4,200
25%
$ 1,050
10
Cost Estimate and schedule
$ 2,100
0%
$ -
11
Draft design report
$ 7,800
0%
$ -
12
Final Report
$ 2,200
0%
$ -
13
QA/QC /PM
$ 2,600
0%
$ -
Subtotals
$ 45,500
1 25%
$ 11,150