ST9401-CS 990318REBCON,�N�.
March 18, 1999
Mr. Garreth Campbell
City of Coppell
P.O. Box 478
Coppell, Texas 75019
Re: Denton Tap Road
Cottonwood Creek to S.H. 121 Bypass
Dear Garreth:
Rebcon previously submitted a request for change order for the referenced project for
numerous items of work. This letter will clarify the item "Additional Slab Form &
Wreck Costs" submitted as part of the request.
The project was originally bid as two separate bridges, and for various reasons they have
been combined into one bridge. The change to one combined bridge did not take place
until we had already constructed the overhang for what was to be the first bridge. Some
of the forming work to build the first overhang will have to be repeated to build the
revised version, and our construction method will also change dramatically. We will no
longer be able to work from above the bridge as originally bid, but all of our wrecking
and cleaning operations will take place from below the bridge.
We now have to use additional bridge hangers, we have to use spanalls in lieu of the
bridge overhangs already used on the first bridge, and we have to use a special scaffold
system to work from underneath the bridge and contend with Denton Creek for the
wrecking and cleaning portion of the work. In addition to these equipment and material
needs, the increased labor hours required for working underneath the bridge is a sizable
increased cost.
Following are the cost justifications for our request:
1 868 W. NORTHWEST HWY. DALLAS, TEXAS 75220 972/444 -8230
UNIT
DESCRIPTION
UNIT
QLY
PRICE
TOTAL
Spanalls
EA
125
$ 9.00
$ 1,125.00
Hangers
EA
125
$ 3.00
$ 375.00
Special Scaffold System
LS
1
$3,570.00
$ 3,570.00
Additional Labor
DAY
6
$ 504.00
$ 3,024.00
Labor Insurance & Taxes (23 %)
$ 695.52
Sub -total
$ 8,789.52
Overhead (15 %)
$ 1,318.43
Profit (10 %)
$ 878.95
Total
$10,986.90
1 868 W. NORTHWEST HWY. DALLAS, TEXAS 75220 972/444 -8230
Please call me if you have any questions about this clarification.
Sincerely,
REBCON, INC.
Robert C. Bibby