Freeport NIP(2.5)-CS 971023i Halff ASSOCl'ate s (21(214) ?89-~94TEXAS4) 739-0095
ENGI~RS · ARCH~ECTS ° SC~N~STS
PLANNERS ° SURVEYORS
October 23, 1997
AVO 16581
Mr. Kenneth Griffin
c/o Michael Martin
City of Coppell
255 Parkway Boulevard
P.O. Box 478
Coppell, Texas 75019-4409
Dear Mr. Griffin,
Halff Associates, Inc. would like to submit an alternative pavement design for
Northpoint Business Center. For the parking area, the alternative design is 5 inch thick
4000 PSI compressive strength concrete with//3 bars, 18 inch O.C.E.W. on compacted
subgrade in lieu of the 5 inch thick 3000 PSI compressive 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 truck courts and fire lane, the alternative
design is 6 inch thick 4000 PSI compressive strength concrete with//3 bars, 18 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.
Robert Manes
cc: Richard Crow (Myers & Crow) ~ ~
Lisa Leslie (O'Brien Associates) ~-.-/
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