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FS8901-CS 890518 The City With A Beautiful Future May 18, 1989 P O, Box 478 Coppell, Texas 75019 214 - 462- 0022 FII. E Y Mr. Err A. Meyer, P.E. Nathan D. Maier Engineers 8800 Central Expressway Suite ~300 Dallas, Texas 75231 RE: 4.50 ACRE TRACT IN COPPELL, TEXAS Dear Mr. Meyer, We received two technical reports on above project back in January, 1989. As we had discussed at that time, you were to forward us two (2) sets of Grading plans before we pursued with out review. We later learned that you were awaiting our response before you would submit those grading plans. Therefore, we provide the following comments, and request the following documents and information as listed: A copy of the recorded deed indicating the legal description of parcel, for accurate location and configuration of the property and authorization of owner/lessee. A topographical survey, grading plan, showing existing and proposed grades certified by a licensed surveyor. (Previously mentioned above) Provide adequate information to fully support the compliance of the proposed reclamation with provisions of the City of Coppell Flood Plain Management Ordinance # 87390, such as but not limited to Art. 4, Sec. C, Subsec. b, c & e; Art. 5, Sec. B, items 1 & 2 ... etc. (See attached Flood Plain Development check list.) Provide documentation that all necessary permits have been obtained from Texas Water Commission, and other state or governmental agencies. - Spocify the proposed and existing land use which is proposed for this reclamation, according to out zoning map the existing Zoning on this property is Light Industrial. Address equal conveyance and provide the City of Carrollt~a'a review and comments on this project. Par Flood Ordinanoe, Art. 5, ~ec. D, Item ?. - In paragraph three of your letter to Terra Properties, you alluded to elevations required by the City of Coppell. The criteria is found in the Flood Plain Ordinance, and is to be furnished b~Fou for review and approval by the City. - Provide a site plan showing adequate ingress, egress to the property. Document by providing the Railroad easement, etc. - Provide cross-sections through*this project to clearly demonstrate the changes; on scale such as 1'=50'... etc. o Within the project o full cross-section o percent changes in border widths across the river valley storage capacity Address the 100-year flood Valley Storage Compensation, for this fill project. Determine flood storage loss data. Any additional data, supporting this request, which clearly demonstrate that the cumulative effect of the proposed development/fill project, when combined with all other existing and approved proposed development will not increase the water surface elevation as per our Flood Ordinance, Art. 4, Sec. C, St~bsection e, Page 25. As we indicated to you previously, we have retained the professional engineering services of Pon. Morrison, P.E. with Kimley-iorn & Associate to review reclamation/hydraulic reports on behalf of the City of Coppell and the applicant bears the related review fees of his (her) project. You were to check with your cliant on this and inform us of his direction. As of this date we have not received your approval of such review. Please note that we have been working on a Floodplain Development Fee Structure in the past few months. On May 9, 1989, an ordinance was approved by the Coppell City Council regarding 'Flood Plain Development Fee.' The fee will be equal to the direct costs for the Reviewer Consultant, Ron Morrison, and will be collectable before receiving our final review. Upon receipt of your revised technical reports (two sets), plus two sets of grading plan we will forward listed documents to Pon Morrison for review and comment. Once our review is completed, we will than forward your project to FEMA for review and approval. If you have any questions, please do not hesitate ~to call Shohre Daneshmand, or s~/self at (214) 462-0022. Sincerely, . Engineer RRD/SD/cb xc: Ron Morrison, Kimley-Horn & Kssoc., Shohre Daneshmand, City of Coppell ' Paul Spain, Terra Properties MEYER FLOODPLAIN DEVELOPMENT CHECKLIST The following Items represent a brief outline of items required by the City of Coppell in.order to develop in a floodplain. References are taken from Ordinance 87390. Reference Item Art. 4C-2 Art. 4C-2(a) Art. 4C-2(b) Art. 4C-2(c) Art. 4C-2(e) Art. 4C-2(f) Art. 4C-2(g) Art. $B-1,2 Art. 5B=1-2 Art. 5C-4 Art. $C-5 Art. 5C-6 Art. $C-7 Art. 5C-8 All models must refer to the 2 yr, 100 yr existing, 100 yr ultimate, and low flow. Lowest floor must be higher than BFE + 2' and 100 yr (ULT.) + 1'. Existing and fully developed 100-year floodplain must be delineated. Determine flood storage loss data. Flood levels caused by the development plus any anticipated future developments must be less chart the 100 yr (ULT) and the 1980 FIS BFE + 1'. Any changes in the floodplain must be submitted to FEMA according to their procedures. Must show evidence of all necessary permits; Local, State and Federal. Elevation of lowest floor of shallow flooding areas must be greater than highest adjacent grade + 2' or the structure must be flo~d protected. All work/nust be certified by a P.E. or R.P.S, The following special note must be included on the plat "Floodplain Development Permit Application No. has been filed with the City of Coppell Floodplain Administrator on , 19 , Floodplain Ads inistrator Date. Boundry's of floodplain and floodway must be shown on plats. Lowest floor elevations for each lot must be shown on site grading plan. A permanent bench mark must be established within a subdivision development. A following special note must be included on the plat. "The developer, builder, seller or agent shall inform in witting, each prospective buyer of suMivision lots or property located within special flood hazard areas of this site that such property is tn an identified flood hazard area and chat all development must conform to the provisions of the City of' Coppell Floodplain Management Ordinance. The written notice shall be flied for record in the County deed records and a copy of the notice must accompany the application for development permit.' The above items are only a brief checklist of Items ~ to comply With Ordinance No. : $7390, a detailed review of th~ Ord~ce ~ n~e~ ~ order to f~lY ~~ i~ contents. ~ Any submittal in connection with a floodplain development m.. usc include the above items. Thl~ submittal must as a minimum al~o include the follovi~: o Text describing where the basic data was obtained, what Is intended, nn~_ the results, all in sufficient detail so that It Is fully'understandable and supportable. '~ ::- o Exhibits must be presented that clarify data. These must include: Water surface profiles, cross sections, work maps, floodplain and floodway delineations for both existing and improved conditions. Comparisons must be shown between existing and proposed conditions for velocities, water surface elevations, storage, and any other impacts. o Computer models must be presented in detail. Not just input and/or summary printouts.