Steve, We have reviewed the proposed grading. The concern that we have is that the area originally drained to the west. This plan effectively shifts the drainage from the west to the east. The basin that this drains into currently floods Jimmy Doolittle and several other systems to the east in Addison. With this in mind, the design needs to include a method for routing all of the drainage from Taxiway S to the grate inlet at the west end. Please review this information and revise the plan as needed. We would gladly review any ideas that you have concerning these issues. If you have any questions, 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 From: Steve Homeyer [mailto:shomeyer@homeyer-engineering.com] Sent: Wednesday, December 22, 2010 4:11 PM To: Clay Barnett; joel.jenkinson@addisonairport.net Cc: Steve Homeyer; Ben White Subject: FW: Proposed Grading Modifications Clay and Joel, Have you had a chance to review the proposed grading plan for the Turbine Air site? Please let me know if you have any questions. Thanks Steven R. Homeyer, P.E. TX FIRM REGISTRATION NO. F-8440 OK FIRM LICENSE NO. 6112 PHONE: 972-906-9985 FAX: 972-906-9987 WWW.HOMEYER-ENGINEERING.COM NOTICE: This e-mail and any attachments was sent by Homeyer Engineering, Inc. (HEI) and may contain information that may be considered privileged and/or confidential. If you are not the intended recipient of this e-mail, you are notified that the dissemination, distribution or copying of this information is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by return e-mail and delete this information from your computer. Unless otherwise stated, the opinions expressed in this e-mail are those of the author and may not reflect the view and/or opinions of HEI or any party it represents. From: Steve Homeyer Sent: Friday, December 17, 2010 1:30 PM To: Clay Barnett; 'joel.jenkinson@addisonairport.net' Cc: Steve Homeyer; 'Ben White' Subject: Proposed Grading Modifications Clay and Joel, I have attached a PDF of a proposed grading plan for the area between Taxiway Sierra and the existing parking area at Turbine Air. There is positive drainage from the taxiway to the parking areas if we can allow a straight grade between the two locations (slopes are provided). On the west end of the property near the existing inlet, we are proposing to leave the grading "as-is". On the east end, we are proposing a swale with a slope of 0.5% to drain this area to the parking area. Please review and let me know if you have any questions. As soon as you can let us know that this is acceptable, we will prepare a formal plan submittal so that the contractor can complete the work. Thanks Steven R. Homeyer, P.E. NOTICE: This e-mail and any attachments was sent by Homeyer Engineering, Inc. (HEI) and may contain information that may be considered privileged and/or confidential. If you are not the intended recipient of this e-mail, you are notified that the dissemination, distribution or copying of this information is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by return e-mail and delete this information from your computer. Unless otherwise stated, the opinions expressed in this e-mail are those of the author and may not reflect the view and/or opinions of HEI or any party it represents.