Michael, I don’t see that there is a need for the formal RFI since you have provided all of the information for each of the manholes below. I will need to get the manhole re-staked per the new offset which will change our trench alignment but we will make it work. The finish grade elevations can all be adjusted with rings as needed. Thanks for the information. Regards, Josh Hodsdon Project Manager North Texas Contracting, Inc. 4999 Keller Haslet Road Fort Worth, Texas 76248 M: 817.401.1913 O: 817.430.9500 F: 817.719.9440 E: josh@ntexcon.com From: Barbier, Michael [mailto:mBarbier@Halff.com] Sent: Friday, January 14, 2011 9:50 AM To: josh@ntexcon.com Cc: Romanowski, Mike Subject: Spring Valley-Oncor Manhole Tops Josh, I have not received RFI #8 that you mentioned yesterday at the meeting but I went ahead and checked the top elevation on the far east duct bank manhole. During my check I noticed that the offset for that manhole was slightly off as well. I also noticed that some of the other manhole tops were slightly off from what they should be. I don't know how many tops have been finalized in the field but hopefully most of these elevations can be achieved with little change to construction already finished. I will re-issue the affected sheets later but I wanted to get these numbers to you as quickly as possible. Here are the correct top elevations for the manholes. Road Station Elevation 10+45.07 587.13 12+88.00 581.76 16+21.73 578.01 19+40.09 581.06 23+97.76 584.91 (Change offset to 36.72' LT) Sorry for the inconvenience. Please let me know if you have any questions. Thank you. Michael Barbier, P.E. Civil Engineer HALFF ASSOCIATES, INC. 1201 North Bowser Road Richardson, Texas 75081 Phone 214-217-6643 Fax 214-739-0095 www.halff.com