Maxwell, Here is the site plan. I’m not sure what you need on the cross section – maybe Bruce can help us with that. I will be the contact person for the site. Thanks, Eric Little Project Manager, UDR 5430 LBJ Freeway, Suite 1250 Dallas, TX 75240 Ph: 972.774.0552 Fx: 972.991.4113 Cell: 214.641.5761 www.UDR.com From: Maxwell Zhang [mailto:geoteleng@yahoo.com] Sent: Tuesday, March 23, 2010 2:39 PM To: Eric T. Little Cc: Clay Barnett; Tom Lamberth; echristiansen@halff.com Subject: Re: Vitruvian Park - Bridge Design Geotech Requirements Eric, In order to speed up the global slope stability analysis, we need a site plan of the proposed bridge location and a critical cross section of the proposed retaining wall for global slope stability analysis ASAP. We also need a site contact information for field boring operation. The field work could be scheduled for sometime this week. The engineering analyses and recommendations of retaining walls will be completed within about 2 weeks. Thanks! Wei (Maxwell) Zhang, P.E. GEOTEL Engineering, Inc. 2221 Manana Drive, Suite 170 Dallas, Texas 75220 972-284-0718 972-284-0721 (fax) wzhang@geotelusa.com geoteleng@yahoo.com ________________________________ This electronic communication and its attachments are forwarded to you for convenience. If this electronic transmittal contains Design Information or Recommendations and not just general correspondence, Geotel Engineering, Inc. will submit a follow-up hard copy via mail or delivery for your records, and this hard copy will serve as a final record. In the event of conflict between electronic and hard copy documents, the hard copy will govern. This e-mail and any attachments transmitted with it are the property of GEOTEL and may contain information that is confidential or otherwise protected from disclosure. The information it contains is intended solely for the use of the one to whom it is addressed, and any other recipient should destroy all copies. ________________________________ From: Eric T. Little To: "wzhang@geotelusa.com" ; "geoteleng@yahoo.com" Cc: Clay Barnett ; Tom Lamberth ; "echristiansen@halff.com" Sent: Tue, March 23, 2010 2:19:40 PM Subject: Vitruvian Park - Bridge Design Geotech Requirements Mr. Zhang, I was good speaking to you a few minutes ago. Per our discussion, please proceed with getting the following items are accomplished/answered for our bridge design at Vitruvian Park in Addison: · Global stability analysis of abutments at Ponte, Bella, and the Southern Pedestrian Bridge (as required) · Clarification of the 110 pcf lateral load for retaining walls o Is this an at-rest load for on-site clays (as is assumed)? o Can this be reduced by using select fill or a granular fill? I understand that the cost of this stability analysis is approx $2,800. Please consider this email as your authorization to proceed. Because of our limited amount of time, I ask that you proceed with all due haste and I also ask that you provide Halff with any and all information they require from you to complete their design work. Please feel free to contact me if you have any questions or concerns. Thanks, Eric Little Project Manager, UDR 5430 LBJ Freeway, Suite 1250 Dallas, TX 75240 Ph: 972.774.0552 Fx: 972.991.4113 Cell: 214.641.5761 www.UDR.com