ST9401-CN 981020October 20, 1998
Mr. Garreth Campbell
City of Coppell Engineering Dept.
P.O. Box 478
Coppell, Texas 75019
RE: Denton Tap Road
Dear Garreth:
d"
4 p-rwe-
VX'n
Ca'nQA 11- to `.,)&
The redesign of the bridge railing on this project involves the following changes
in costs:
Delete the following from the contract:
19. Furnish and install
special bridge rails
1,4871-F $140.00 /1-F $208,180.00
Alt Item 18 Furnish and
install special bridge
rail per Section 04 Sheet 57
76LF $140.00 /1-F $ 10,640.00
Total Deductions $218,820.00
Add the following to the contract:
Concrete bridge rail,
wrought iron fence,
and railing on bike :
path below bridge
1563LF $17.00 /LF $339,171.00
# ��l
Total Additions $339,171.00
Total net change to the contract is: $ 120,351.00
Rebcon will require an additional 20 working days to be added to our contract
to allow this work to be constructed. Please note the following items:
1) Because of the deck construction method using precast concrete panels
the outside dowel bars on the pedestals and columns may need to have the
horizontal leg shortened to allow them to fit properly.
2) Dowel bars on the east bridge inside rail will not be placed 11 /4" above the
slab bottom but will be some distance above the top of the precast panels.
1 868 W. NORTHWEST HWY. DALLAS, TEXAS 75220 972/444 -8230
3) Our price assumes that the detail of the typical balluster sheet S1 A of 9 has 3-
#6 on both sides of balluster top and that the vertical leg of the #5 dowel is
2.75'.
4) We are disregarding the plan view and its dimensions on sheet S1 of 9 in lieu
of dimensions and layout shown on SIB of 9.
5) We have budgeted expansion joint cost in our price but need to know
locations for those joints. We feel that the wingwall /column joint should also
go at armor joints. We need to know where you want the rail joints.
6) We do not have any additional deck steel in our price or additional strands in
the beam to carry the additional loading. If any of this will be required we
will need to change our price.
Please let us know as soon as possible, if the City wants us to construct this rail. It
is very important iii keeping ihis job m%:viiig.
If you have any questions, please let me know.
Yours Very Truly,
R N INC.
R.E. urgett
President V
cc: Ulys Lane III, P.E.
Wier and Associates, Inc.