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Villages CC 1-3-CS 910325MEMORANDUM FILE COPY March 25, 1991 TO: /Travis Crump, Commercial Building Inspection / FROM: ~/ M. Shohre Daneshmand, Acting City Engineer ~'~ Re: Floodplain Activity/Residential (Villages of Coppell) Basketball Court in Floodway Easement 146 Winding Hollow Block 8, Lot 22 I have completed my review of the above reference request for construction of a 25' X 30' basketball court, per your memo dated March 18, 1991, and provide the following comments: A grading plan showing the existing and proposed grades and elevations is required. Such plan must be sealed by a registered P.E. and certified by a certified Public Surveyor. It appears that the attached survey plat only identifies the location of the proposed basketball court with no information about elevations and grades. The proposed court seems to be about fifty {50) feet away from the creek which is acceptable. There shall be no fill in floodway and/or floodplain. Any cut and fill activity must be kept to an absolute minimum. The only proposed activity being considered for approval, is the basketball court. It is my understanding that installing a fence is not required for this type of improvement and that utility outlets, such as electrical, etc. is not requested and therefore, not considered. Comply with the Floodplain Ordinance #87390. Provide as-built grading plan certified by registered public surveyors showing the existing ground elevations and the newly constructed concrete pad, as minimum. I am forwarding a blank floodplain development permit form along with this memo to be filled out and submitted to our offices. The City of Coppell be furnished with a "Hold Harmless" letter stating that the applicant(s) will assume all liabilities associated with this activity and indemnify and hold the City of Coppell harmless of any damages resulting from this activity. A typical statement used by the City of Dallas, which as been provided to me by Albert H. Halff & Associates, is noted below: Memo to Travis Crump March 25, 1991 Page 2 " The property owner , shall a§ree to hold the City of Coppell harmless of any damages caused by the construction of in the floodplain and floodways. The natural drainage channels and water courses through , as in the case of all natural channels, are subject to storm water overflow and natural bank erosion to an extent which can not be definitely defined. The City of Coppell shall not be held liable for any dama§es of any nature resulting from the occurrence of these natural phenomena, nor resulting from the failure of any structure(s) within the floodway easement . " Once such letter is submitted, it should be sent to the City Attorney for review and comments. In general, we have no objection with this request as long as above comments are addressed. Please let me know if you have any questions. cc: Gary Sieb, Director of Planning and Community Services Dale Jackson, Building Official/With Attachments MSD/bd TRAVIS.TXTLINDA STATE 0F TEXAS : COUNTY OF DALLAS : CITY OF COPPELL : NAME OF PERMI~EE: PERHIT NO. Tile above named permlttee applied for a DEVEI,OPMI'~NT PERMIT on The application has been reviewed hy the AI)MINfSTRATOR and it is bls determinatlcm that tim proposed development IS located within an Identified flood plain of The ADMINISTRATOR bas reviewed plans and specifications of the proposed development for on the following described property: To maintain compliance with the development standarda of COPPELL flood plain management regulations and 'to eliminate or minimize flood damage potential to the proposed development, you are hereby directed to construct your proposed development in accordance with the following special provisions: For residential stroctures, tile lowest floor (including basement) must be elevated to tuo (2) feet above the lO0~year base flood elevation. Mi.tmum finished floor elevations must be sho~m on the plat for the development as approved by cbc City For non-residential structures, the lowest floor (including basement) must be elevated or gloodproofed to t~o (2) feet above the lO0-year base flood elevation. Minimum finished floor elevations must be shown on the pla~ or si~e plan as approved by the Pe~ittee must submit a certification from a registered professional engineer, ~rchitect, or land m~rveyor that the finished floor l~vel of the residential structure ha8 been constructed two (2) feet above the lO0-year base flood elevacion~o~(I]~o~ For non-residential gloodprooftng, a registered professional enRineer or a:chicect mus: cer:Lfy klm: :he ~loodpcoo[ing methods are adequaCe co ~ithsLand ~be flood dep:ha, pressures, velocities, impa¢~ and up~i[~ forces and o:her factors associated ~h klm base rlood. ( ) For fill activities, the permittee must submit a certification from an engtneer or land sucveyor that the level of the compacted fill material is at or above the elevation of the Base Flood. ( ) Provide a certified copy of all final plans or As-Built Drawings to tile AI)HINISTRATOR. ( ) O~IER PROVISIONS: ACKHOWLEDGEi~ENT OF CONDITIONS BY PERItI2~EE SICNATVRE OF ADMINISTRATOR DATE DATE DEV,PERMITS PZAGN 0 - ----..._ ;al ts _. GI • Wil -'• ' ' v.. „er.v... \_ ,_7•''`.. .....\,„ •••■•"'y :ta0,•1 / tx 4kilL 0.* . , • N \ :# itt *\\ \ ,. ... .... ..... % ssIt............_.........., , V . -: ...... ......_................„,.... c........ ...,......,..........._................. ; i ' , , _, „t‘,. ,,, 4.:„...._,........... .. .._ .,,, v , — ,,„. , , y..-.4,0c.... -..........,.........,_ ...,„............. Tv n't .. t-, — ': a , \ �, , a o f .�` 1 . 1 111); J "";04-"4111t4 . ":7 4 .41.1:4 1.,: ,/ k _1 - Il , VIto.■ '' . 0 \ \ 1 \ ir■ ....:' 4' ._ 4m "` \... A A � � ' " 46 �� �� ■�� \ .S .' c r { , : gi0b- , ' ' C \-- r -C D \3 1 \\ ' � , ` e ' �` I I \ p 0 yc y I P* - <::': ' ` r \V ma y .. • . IA. \....„1...10 ' 7 . A' ' 1- *4, itIAs"!•:= ‘,- % --. 11-,, V ---,‘ �C . ,,,,r //, S 4%i tt&i \ ,.--- ' 44 N'', 7.4 - ----,- •-----. / , _, 4 , 4 0010..... c .„.............„. 0. ., , , 1 ‘,,,, , ...,....z4. rt,n-Im...--.......... ., ..,, c, l �' � ® ■ 2' ' 6) ) . , _:. j� tit, ",<-,,,, ., / .IIIk ...,......2.0; w /I w SECTION B B CREEK LOTS LEGEND "AS BUILT" CONTOUR AREA ON SITE TO REMAIN IN NATURAL CONDITION DO NOT DISTURB AREA TO REMAIN IN NATURAL CONDITION ALONG COTTONWOOD BRANCH -DO NOT DISTURB TOP OF SLOPE FILL ADJACENT TO FLOODWAY TOE OF SLOPE FILL ADJACENT TO FLOODWAY LINE OIOO W.S. ELEV. WITH FULLY ENCROACHED FLOOD FRINGE ADD 0.20' FOR PROPOSED FILL TREES'TO BE SAVED G'AS BUILT' ELEVATION OF FILL, SEE NOTE. ~' 'AS BUILT" ELEVATION ~100 YR. FLOOD BOUNDARY .... ~---500 YR. FLOOD BOUNDARY III1[I I I I -- "AS GRADING OWNERSHIP OF 00CUMENTg THIS DOCUMENT,AND THE IDEAS BUILT" PLAN SOUTF VILLAGE AT COTTONWOOD CREEK CITY OF COPPELL~ TEXAS  WlER & ASSOr~IATES, INC.