St Ann Catholic-CS061031Keith Marvin - RE S t. Ann Alley Drainage Page 1
From: "Erik M. Hauglie" <ehauglie @pkce.com>
To: "Steven Heilbrun" <sheilbrun@pkce.com >, <kmarvin @ci.coppell.tx.us>
Date: 10/31/2006 2:12:56 PM
Subject: RE: St. Ann Alley Drainage
Keith,
The previous drainage area maps showed 8.17 cfs going to the alley.
Erik
- - - -- Original Message---- -
From: Steven Heilbrun
Sent: Tuesday, October 31, 2006 2:10 PM
To: 'kmarvin @ci.coppell.tx.us'
Cc: Erik M. Hauglie
Subject: St. Ann Alley Drainage
Good Afternoon Keith,
Please find attached a revised drainage area map showing a reduction in the amount of water draining
towards the alley. Originally, there were 5.47 cfs draining towards the alley and now there are 4.26 cfs.
The other 1.21 cfs is draining towards the proposed curb inlet. With this 1.21 cfs reduction, do you think
this would satisfy everyone involved?
Thanks,
Steven Heilbrun
Project Engineer
sheilbrun @pkce.com <mai Ito: sheilbrun @ pkce.com>
Pacheco Koch
Consulting Engineers
8350 N. Central Expwy, Suite 1000
Dallas, Texas 75206 -1612
T 972.235.3031 " F 972.235.9544
www.pkce.com <http: / /www.pkce.com />