Bill, Below is the information on the pipe across Keller Springs Road. As we discussed the town is only looking to run it as far as the concrete and plug it there so that we can extend it in the future without removing concrete. If you have any questions, please let me know. Clay Barnett, P.E. Town Engineer Town of Addison 16801 Westgrove Drive Addison, TX 75001-2818 Office: (972) 450-2857 From: Gaspard, Noelle [mailto:nGaspard@Halff.com] Sent: Wednesday, October 06, 2010 2:14 PM To: Clay Barnett Subject: RE: Pipe in Addison Road Clay: For the pipe size needed beneath the Addison Rd/Keller Springs intersection – here’s is the information you are asking for: · The existing airport system is drained by two laterals – an 18” RCP and a 24” RCP – that are tied into the main system at the southwest corner of the intersection. · To relieve the airport flooding, we upgraded the airport system to a 7’ x 4’ RCB (shown in red) and rerouted it beneath the Addison Road/Keller Springs intersection . It ties back into the main trunk line (66” diam. Pipe at invert elevation of 629.47) on the north east corner. Let me know if you have any additional questions. Noelle Noelle Gaspard, PE, GISP, CFM Project Manager HALFF ASSOCIATES, INC. 1201 North Bowser Road Richardson, Texas 75081 Phone 214-346-6200 Direct 214-346-6313 Fax 214-739-0095 www.halff.com From: Clay Barnett [mailto:cbarnett@addisontx.gov] Sent: Tuesday, October 05, 2010 11:27 AM To: Gaspard, Noelle Subject: RE: Pipe in Addison Road Noelle, Any word on what size pipe we need? Thanks, Clay Barnett, P.E. Town Engineer Town of Addison 16801 Westgrove Drive Addison, TX 75001-2818 Office: (972) 450-2857 From: Clay Barnett Sent: Sunday, October 03, 2010 3:43 PM To: 'Gaspard, Noelle' Subject: Pipe in Addison Road Noelle, Were you able to size the pipe we need to install across Addison Road to the airport? Thanks, Clay Barnett, P.E. Town Engineer Town of Addison 16801 Westgrove Drive Addison, TX 75001-2818 Office: (972) 450-2857