Nancy/Clay:
I inserted the below into the second comment column for the Comment #1:
It is clear that there is insufficient time to make modifications to these drawings so that they are typical of TxDOT-style bridge plans. Although we have not had the opportunity to
review other contract documents, the plan details do not lead us to believe that the TxDOT Standard Specifications have been fully incorporated into the drawings. We believe there may
still be numerous RFI’s through the construction phase because of lack of adherence to typical bridge engineering practice. A point of emphasis for the contract documents and the pre-bid
meeting will be to ensure you clearly inform all prospective bidders of the additional shop drawing preparation and contractor responsible design that is required for this project as
compared to industry standard for bridge construction projects.
Please reply to confirm this satisfies your desired direction on this issue or provide direction otherwise.
Best regards, Dan
Daniel J Chapman, P.E.
HNTB Corporation
5910 W. Plano Parkway, Suite 200
Plano, Texas 75093
(972) 661-5626 (office)
(972) 628-3041 (direct)
www.hntb.com
From: Clay Barnett [mailto:cbarnett@addisontx.gov]
Sent: Thursday, January 14, 2010 11:07 AM
To: Daniel Chapman
Cc: Steve Hague; Justin Beaird; Nancy Cline
Subject: RE: Vitruvian Park - Cursory Review of Bridge Plans
Dan,
In the comments, please insist that the first comment be addressed by Viewtech.
Thanks,
Clay Barnett, P.E.
Town Engineer
Town of Addison
16801 Westgrove Drive
Addison, TX 75001-2818
Office: (972) 450-2857
-----Original Message-----
From: Daniel Chapman [mailto:dchapman@HNTB.com]
Sent: Friday, January 08, 2010 10:51 AM
To: Clay Barnett
Cc: Steve Hague; Justin Beaird; Nancy Cline
Subject: RE: Vitruvian Park - Cursory Review of Bridge Plans
Sorry – with file attached.
Clay:
To revise the entire plan set to make it more typical to that customarily issued for construction of vehicle bridges in Texas would require a complete redo and a firm more experienced
in the preparation of plans and specifications for vehicular bridge projects in Texas. Viewtech’s response is essentially correct and thus we understood the intent was never to fully
redo the plans but for Viewtech to make the revisions needed to address the key items we commented on for constructability and to provide a bridge layout showing generally the information
that TxDOT would require. Viewtech has done this probably to the extent they are capable.
I revised Comment 2 to direct that a quantity summary table be provided showing TxDOT bid items, item numbers and units.
If you have questions, require additional information or would like to further discuss, please reply or call.
Best regards, Dan
From: Clay Barnett [mailto:cbarnett@addisontx.gov]
Sent: Friday, January 08, 2010 9:12 AM
To: Daniel Chapman
Cc: Steve Hague; Justin Beaird; Nancy Cline
Subject: RE: Vitruvian Park - Cursory Review of Bridge Plans
Dan,
Did Viewtech revise the plans based on Comment 1? Are there any other comments that were not addressed? If so, please let me know so that I can discuss them with Nancy.
Also, we will not be bidding the plans as lump sum again. Could you revise the comments based on this?
Thanks,
Clay Barnett, P.E.
Town Engineer
Town of Addison
16801 Westgrove Drive
Addison, TX 75001-2818
Office: (972) 450-2857
-----Original Message-----
From: Daniel Chapman [mailto:dchapman@HNTB.com]
Sent: Thursday, January 07, 2010 1:56 PM
To: Nancy Cline
Cc: Clay Barnett; Steve Hague; Justin Beaird
Subject: Vitruvian Park - Cursory Review of Bridge Plans
Nancy:
The revised comment response report is attached. For many of the ViewTech's comment responses , we made no reply as the comment and reply sequence speak for themselves.
It is clear that there is insufficient time to make modifications to these drawings so that they are typical of TxDOT-style bridge plans. Although we have not had the opportunity to
review other contract documents, the plan details do not lead us to believe that the TxDOT Standard Specifications have been fully incorporated into the drawings (the lack of a quantity
summary table listing specific TxDOT bid items leads us to believe the project will again be bid lump sum similar to the previous letting). However, with respect to overall constructability,
it appears that the bridge is, in fact, constructible as more than one bidder submitted bids on the project previously. Plan revisions made in response to our cursory plan review will
help, but there may still be numerous RFI’s through the construction phase because of lack of adherence to typical bridge engineering practice.
HNTB Corporation has not made any independent computations as to the size or strength of members shown for the bridges. Our assumption has been all along that ViewTech is capable and
working professionally within their abilities as registered professional engineers in Texas.
A point of emphasis for the contract documents and the pre-bid meeting will be to ensure Viewtech clearly informs all prospective bidders of the additional shop drawing preparation and
contractor responsible design that is required for this project as compared to industry standard for bridge construction projects.
If you have questions or require additional information regarding the above or attached, please reply or call.
Best regards, Dan
Daniel J Chapman, P.E.
HNTB Corporation
5910 W. Plano Parkway, Suite 200
Plano, Texas 75093
(972) 661-5626 (office)
(972) 628-3041 (direct)
www.hntb.com
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This e-mail and any files or attachments transmitted with it contains Information that is confidential and privileged. This document may contain Protected Health Information (PHI) or
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