Tim, Halff has recently completed a flood study for the basin that you have identified. Perhaps that would be more beneficial to you than record drawings. If you are interested, please let me know. Thanks, Clay Barnett, P.E. Town Engineer Town of Addison 16801 Westgrove Drive Addison, TX 75001-2818 Office: (972) 450-2857 P Please consider the environment before printing this email. -----Original Message----- From: Siemens, Paul, T [mailto:PTSiemens@GarverUSA.com] Sent: Monday, November 09, 2009 4:15 PM To: Nancy Cline Cc: Clay Barnett Subject: Airport Drainage Nancy, We’ve got a copy of the Town’s Drainage Manual dated March, 1990. Has the manual been updated since then? Or is the 1990 version still current? Clay, We talked about as-built’s and drainage maps some time back. Specifically, we’re looking for info on the basin that drains into the Million Air ditch. Based on what we’ve gathered to date, anything north & east of Westgrove (as far north as Trinity Mills and as far east as Addison Road) would be helpful. If it helps, I can send one of our EIT’s down to search thru archives. Let me know. Thanks. P. Timothy Siemens, PE Senior Project Manager Aviation Team Leader Office: 972-377-7480 Ext: 227 Mobile: 214-938-4291 E-mail: PTSiemens@GarverUSA.com