SS9901-CS040421Request For Information (RFI)
Coppell Deforest Road Lift Station Improvements
Force Main Lines A & B
Mr. Tedd B. Sugg, P.E.
Turner Collie & Braden Inc.
17300 Dallas Parkway, Suite 1010
Dallas, Texas 75248 Fax: (972) 735-300I
RFI
04/21/04
Trttnsmlned By
David A. Dickerson, P.E., M.B.A.
Se~or Estimator / S~etary-Treasurer
S.J. Louis Construction of Texas proposes one "no cost" change alternative on the above referenced project:
· Conversion of three locations to horizontal directional drilling (HDD). In order to minimize traffic
and surface disruption and increase the speed at which the project can be completed, our company
requests three deep excavation areas be converted to HDD using HDPE (.per project specifications): 1)
STA 7+00 to STA 11+50 (450 LF), 2) STA 21+20 to STA 26+00 (480LF), and 3) STA 32,-00 to STA
35*50 (250 LF). Again, this would be a "no cost" change, as S.J. Louis Construction would have to
compensate the driller for some areas which would previously had been installed by open cut methods,
and open cut installation at shallow depth is much less expensive than HDD methods. Payment would
be made through pay estimate as if ductile iron pipe materials and casing had been installed without any
changes.
S.J. Louis Consmaction of Texas proposes one "credit to Owner" change alternative:
· Downsizing of bored steel casing diameter. In order to reduce spoil material production and potentially
use smaller boring equipment, which would reduce traffic and surface disruption and increase the speed
at which ~he project can be completed, our company requests 330 L1e of 36" diameter steel casing be
downsized to 30" in diameter for the 20" DIP (95 LF of 36" diameter casing for 24 gravay SS P C
remains unchanged), and 88 LF of 48' diameter steel casing be downsized to 42" in diameter for the
30" DIP. The30" ammeter steel casing would still allow 4.7" of clear space from edge ofpipe bell to' '
inside wall of casing, while the 42" diameter steel casing would still allow 6.0" of clear space from edge
of pipe bell to inside wall of casing. S.J. Louis Construction of Texas assumes all responsibility for
ensuring that the pipe can be installed adequately inside the casing, and is completely confident there
will be no problems. Credit to Owner: Total savings of 330 LF x $30,00/LF and 88 LF x $40.00/LF
equals $13,420.00, to be split in thirds for value engineering with Owner receiving $4,473.33 credit,
subcontractor retaining $4,473.33 savings, and S.J. Louis receiving $4,473.33 savings.
Authorized Signature
SJL ACtion
Let V. Whitman, S.I..Louis Construction of Texas Ltd., LLP
File 14016
$,J, l. ouis Construction of lcxa$ Ltd,
P,O, Box 834
Mansfield, Tocas 76063
(817) 47%0320 Office (817) 477-0552 Jeax
TOTAL P.02