Fairways/FP-CS 881123 GINN, INC. CONSULTING ENGINEERS
November 23, 1988
Taryon Bowman
city of Coppell
P.O. Box 478
Coppell, TX 75019
Re: Fairways at Riverchase Addition, Phase I
Final Plat and Construction Plans
DRC - Engineering
Dear Taryon:
We offer the following comments per our review of the above
referenced subject.
1. Applicant needs to add to the final plat a note "Notice to
Prospective Buyers" per the Comprehensive Floodplain
Management Ordinance (CFMO), pages 34-35.
2. We have no comments regarding the two variances requested.
3. Lots 18 and 19 of Block A appear undevelopable due to the
fact that the building pads are shown to infringe upon the
100 yr. flood limit.
4. DRC should verify if a screening wall is required between
the alley and Riverchase Drive in Block D. Show if,
necessary, on the plat.
5. Indicate by cross-sections what paving section is proposed
at the Colonial/Augusta intersection (sht. 4/16) and Pebble
Beach/Pine Valley intersection (sht. 5/16).
6. On the storm drainage system, applicant needs to provide one
of the following (also see attached FEMA newsletter):
a) Design system based on extending 100 yr. hydraulic grade
line.
b) Design system based on extending 10 yr. hydraulic grade
line and show on the drainage plan (sht. 10/16) where the
emergency overflow for a 100 yr. condition is provided.
Also, provide details of sections needed to convey the
overflow and identify any easements required.
17103 Preston Road · Suite 100 · LB II8 · Dallas. Texas 75248 · Phone 214,'248-4900
7. A Trench Safety plan needs to be added to the construction
plan set prior to the sets being stamped approved by the
City Engineer.
Sincerely,
cc: File 88305 ~enclosures
Mike Daniel, P.E., NDM Consulting Eng. ~enclosures