Nlake WE P12/FP-CS 900330TO
17103 Pr~est~ Road
So~e 100. LB-II8
DALLAS, TEO~ 75248
(214) 24~-4900
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WE ARE SENDING YOU ched O Under separate cover via 'B/'~/" ~/~'~' the following items: ·
[] Shop drawings [3 Prints [] Pla.n.s [] Samples [] Specifications
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COPIES DATE NO.DESCRIPTION
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~,,For your use [] Approved as noted [] Submit * copies for distribution
WAs [] Returned for corrections [] Return corrected prints
requested
[] For review and comment I-I
I-I FOR BIDS DUE; 19.__ [] PRINTS RETURNED AFTER LOAN TO US
REMARKS
Kimley. Horn and Associates, Inc.
April 10, 1989
City Enlirineer
City of//Coppell
Post ~Jffice Box 478
Cop.15ell, Texas 75019
12660 Colt Road, Suite 200. Dallas, Texas · (214) 386-7007
Raleigh. CharloUe. Nashville, Virginia Beacll, [')alias. Pl~oer,x,
Wesl Palm [~Jach. Tampa, Odarldo, FL Laudeldalo. Veto Beach, Ft Myul s. Stuart
Review of Flood Sh[dy for Norlhlakes Woodhmds Easl No. 12
by Do, A. Tipton, I,c,
Dear Mr. Doyle:
We have completed our review of the material presented regarding the subject flood study relating
to City Ordinance No. 87390. The ref)ort entitled, "Floodplain Hydraulics Study - Grapevine Creek,
Coppell, Texas," demonstrates thai the fill proposed for the project meets lhe conditions of the
ordinance.
/
This review is based on inrormalion presented in the subject report and in no way suggests that a
review of any oilier aspect of the project was completed such as site verificalion, conslruction plans,
specifications, SUl'voys, or any other infornmtion rekHed lo the projeci.
If we can provide additional info,'mation, please let me know.
Sincerely,
KIMLEY-HOR. N AND ASSOCIATES, INC.
Ronald W. Morrison, P.E.
Senior H ydrologist
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Copy to: Kevin Pfifer, Ginn, Inc.
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Build/ng client relationships since 1967
DRC DATE~
REVIEW OF:
CITY OF COPPELL
PUBLIC WORKS
ENGINEERING DIVISION
BY:
.3 .c.
Shore Daneshmand, Phone ~ 462-8495
FINAL PLAT AND PLANS:
ae
i)
2)
Please make the following additions and/or corrections on
final plat as marked:
Name of the proposed subdivision must be consistent on
the plat and all pages of the construction plans, etc.
LOcation . width . . . and the name of all existing
or recor~e~ streets intersecting the boundary of the
tract.
3) Delineate the existing and proposed zoning of the site
and the surrounding properties?
4) - The accurate outline of all property which is offered for
dedication for public use with the purpose indicated
there on. Fire lanes must be shown on final plats.
5) - Certification by a registered Public Surveyor to the
effect that the plat represents a survey made by him.
~//Delineate utility signature block on the final plat.
6)
./
7) %~per FloodPlain Management Ordinance 4~87390 (Art. 5, Sec.
C, Item 4, Page 34), all subdivision proposals must have
the following note placed on the preliminary and final
plats:
"Floodplain Development Permit App].ication No.
has been filed with the City of Coppell Floodplain
Administrator, on , 19 ."
(Floodplain Administrator)
No Comment.
Page 1/3
(Date)
The following
contained in
project:
information, as marked,
the final construction
is required to be
plans of the above
1)
Provide final construction plans, simultaneously with
final plat submittal. Final plans must have a cover
sheet, detailed design plans, and standard detail sheets.
2)
A cover sheet, for final construction plans shall include
the following=
Name of the project
Owner's name and address
Engineer's name and address
Architect's name and address
Vicinity map
Index list, covering all pages included in the set
"Plan Approval Paragraph", see attached
Detailed final construction plans shall contain the
following:
* All required!street paving plans and profile sheets.
* .All required storm drainage plans and profile sheets.
* All required alley paving plans and profile sheets.
* A complete and accurate drainage area map and
detail grading plan.
* All required letters of permision from adjacent
property owners.
* All required water and sewer engineering plans.
4) - Provide barricading plans.
5)
Provide trench safety, sealed by a registered engineer
in the State of Texas.
6)'
Delineate proposed and existing water distribution system
and pipe sizes.
7)
Delineate proposed and existing sewage collection system
and pipe sizes
Provide a Drainage Area Map covering two parts:
a) show On-site Drainage Map, on a scale of 1" = 20',
40'. 50' etc. . . ' with all details as required in
the Subdivision Ordinance;
b) show the Off-site Drainage Map, on a scale 1" = 100',
200', etc . . . Delineate 'the project's .boundary on
it, plus the less detailed drainage system, 'to clearly
demonstrate the affect of such activities, drainage
outfalls, on the adjacent properties and the Drainage
Master Plan.
9) -
10) -
11) -
12) -
1,3 ) -
14) -
15) -
16) -
17) -
all storm sewer systems must be designed for 100-year
design frequency. Technical Paper 40 should be used to
compute rainfall intensities, as per the Subdivision
Ordinance, (Appendix "A", Page 30).
Show the hydraulic calculations for each portion of the
storm system on the profile, such as pipe size, Q100
(cfs), Qc (cfs), S, v (FPS) ets . . .
Ail lots within or adjacent to the 100,year Floodplain
shall have the lowest floor elevation for each building
site shown on the site grading plans.
A permanent bench mark must be established with in a
subdivision development, see attached Floodplain
Development checklist.
Each sheet of the plans shall contain a title block and
consistent page numbers.
Ail appropriate fees as per subdivision ordinance must
be paid.
Delineate a Revision block on each sheet. Revision
dates must be shown on each sheet with Engineer's
initials next to them.
All above comments must be addressed, prior to Staff's
recommendation for approval of the final plat and plans.
Provide a written response on all comments with
explanations provided on items not addressed as
requested above.
DRC/COMMENTS/ENG/FINAL
SD/bb
Page 3/3