Gateway BP(1.3)-CS 981012Halff Associates
ENGINEERS · ARCHITECTS · SCIENTISTS
PLANNERS · SURVEYORS
Mr. Kenneth Griffin
c/o Michael Martin
City of Coppell
255 Parkway Boulevard
P.O. Box 478
Coppell, Texas 75019-4409
Dear Mr. Griffin,
October 12, 1998
AVO 16613
8616 NORTHWEST PLAZA DRIVE
DALLAS, TEXAS 75225
(214) 739-0094
FAX (214) 739-0095
Halff Associates, Inc. would like to submit an alternative pavement design for
Coppell Spec Building in Gateway Business Park. For the parking area, the alternative
design is 5 inch thick 4000 PSI compressive strength concrete with #__3 bars~ 24 inch_
O.C.E.W. on compacted subgrade in lieu of the 5 inch thick 3000 psi er~ ,mpr-~ve
strength concrete with #3 bars, 24 inch O.C.E.W. on 6 inch lime stabilized subgrade as
shown in Appendix C of the City of Coppell Subdivision Ordinance. For the. fire lane on
the east side of the building, the alternative design is 6 inch thick 4000 PSI compressive
strength concrete with #3 bars, 24 inch O.C.E.W. on compacted subgrade in lieu of the 6
inch thick 3000 PSI compressive strength concrete with #3 bars, 24 inch O.C.E.W. on 6
inc'[ lime stabilized subgrade shown in Appendix C of the City of Coppell Subdivision
Ordinance. For the truck court and the fire lane to the west of the building, the alternative
design is 7 inch thick 4000 PSI compressive strength concrete with #3 bars, 24 inch
O.C.E.W. on compacted subgrade in lieu of the 6 inch thick 3000 PSI compressive
strength concrete with #3 bars, 24 inch O.C.E.W. on 6 inch lime stabilized subgrade
shown in Appendix C of the City of Coppell Subdivision Ordinance.
If you have any questions or require any additional information, please contact Pat
Acker or myself.
Sincerely,
HALFF ASSOCIATES, INC.
Todd Jackson
DALLAS ,, FORT WORTH - HOUSTON · McALLEN
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