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STRUCTURES TEAM

 

COMMONWEALTH OF PENNSYLVANIA
DEPARTMENT OF TRANSPORTTION

7000 Geerdes Boulevard
King of Prussia, PA 19406-1525
May 8, 2001

060/MSL/RRM

Chester and Montgomery Counties
S.R. 0202, Section 404
Document No. 009

Allan A. Myers, Inc.
P.O. Box 98
1805 Berks Road
Worcester, PA 19490

Attn:    Thomas A. Kinsman
      Project Manager

Re: Transmittal #0051
High Steel Request for CNC Drilling Acceptance

Dear Mr. Kinsman:

The Department has reviewed the March 1, 2001 letter from High Steel Structures, Inc. requesting that CNC and template drilling of frill size field splice holes be accepted


The CNC drilling procedure is accepted at the 5-21941, S-22002 and S-21677 structures under the following conditions:

1) Klan A. Myers, Inc. and High Steel Structures, Inc. accepts responsibility for any problems and cost that might occur from using this procedure and the conditions set by the Department to ensure proper fit-up and quality of the product.

2) No additional holes will be allowed in the flange or web. Misdrilled holes will result in the girder being rejected.

3) No tack welds will be allowed unless they will be consumed by the final weld. -

SR. 0202, Section 404
High Steel Request for CNC Drilling Acceptance
May 8, 2001

4) In accordance with 1105.03(g)1, use the Progressive Girder Assembly to ensure fit-up of structure.

5) No time extension will be granted as a result of this procedure and progressive girder assembly fit-up requirements.

6) Any additional cost resulting from a failure to meet erection schedules will be the responsibility of Allan A. Myers, Inc. and High Steel Structures, Inc. and not the Department.

If you have any questions concerning this matter please contact James Mastrilli, P.E., District 6-0 Structure Control Engineer, at 610-205-6686.


Very truly yours,

Marshall S. Linton, P.E.
Assistant District Engineer, Construction


O6O/MSL/JMM: sr
w/attachmen.
cc: M. Linton
R. Mackey

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