Eric – Attached is the email I sent you last Friday regarding the proposed grading at Bella bridge. I swear the grading is attached. Please have your CAD person look again (see BP1VPcPTO.DGN). After you have reviewed the proposed grading, let me know if you think item 3 below is still an issue. We have so many constraints that I think the proposed grading we have shown is our best option. Item 4 should not be a problem. ________________________________ From: Christiansen, Eric [mailto:echristiansen@halff.com] Sent: Tuesday, April 20, 2010 12:19 PM To: Bruce Dunne Subject: RE: Vitruvian Park - Proposed Grading Revisions Bruce, As we discussed on the phone: 1. Please find the attached bridge elevations, as you requested. 2. While we received the files you sent last Friday, the proposed grading plan was not included. Will you please send us the proper file? That would be appreciated. 3. Before you send the grading files, please consider the second attachment that shows the elevation of the bottom of the arches at Bella Lane. You will notice that the arches are anywhere from 3" to 1' below the proposed grading. What can be done to adjust the grading to give us some clearance below the arches? We can raise them up a little bit (perhaps 3"), but this won't solve the problem. Let me know what you determine. 4. Lastly, in reviewing your drawings on Bella, we noticed that there is a storm drain that runs along the roadway CL. Unfortunately, we didn't notice this was on your plans for the park (Phase 1C). Would it be possible to shift these drains 3.5' to the west (RT, looking upstation) to avoid our bent and abutment drilled shafts? I look forward to your response. As a reminder, please have Joel call me to confirm a few electrical items. Thanks, Eric Eric S. Christiansen, P.E., SECB, LEED AP Senior Structural Engineer HALFF ASSOCIATES, INC. 1201 North Bowser Road Richardson, Texas 75081 Phone 214-346-6284 Fax 214-739-0095 Cell 972-955-2996 www.halff.com From: Bruce Dunne [mailto:bdunne@icon-engineers.com] Sent: Friday, April 16, 2010 9:08 AM To: Christiansen, Eric Subject: Vitruvian Park - Proposed Grading Revisions Eric – Attached are the files you requested for the proposed grading that reflects the bridge elevation changes. Let me know if you need anything else. Oh – and could you also send us your bridge elevations for all three bridges. You only included plans this time for each. BRUCE F. DUNNE, P.E. President icon Consulting Engineers, Inc. Bicentennial Financial Center 250 W. Southlake Blvd., Suite 117 Southlake, Texas 76092 Phone: (817) 552-6210 Fax: (817) 552-3126 Mobile: (817) 707-9711