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Creekview Add PD-CS 881222 . . COPPELL PUBLIC ~ORKS - ' ~ TO Steve Goram, Director of Public Work ~ RE: ~'~V~/steve,~ Cre~k ~e~on 12~2~8,1Oidattended a meetingF o plain of Lot Development in Floodplain Reclamation Area. Please find the attached attendence sheet for representatives attending this meeting. Topic of discussion was the construction of home in said area prior to FEMA Map Revision. I have contacted FEMA and they will forward me a step-by-step outline of the FEMA Submission requirement of how a project moves through it, which I will forward to you upon my receipt of it. In brief, after the Engineer of Record submits his data and plans to the City to review, the City then forwards it to FEMA. FEMA reviews the submissions and issues a letter of belief or condition letter of Map Amendment, which allows development of said area, but the owners are still held responsible. The next and final step is FEMA's issuance of Map Revision. This takes property out of floodplain and flood insures would not be required. The norm is a Developer would do all floodplain reclamations at one time. That is not what will happen at Creekview. They will be doing it in phases. The creek lot will be in the first phase. The problem is that the home will be ready for occupancy prior to FEMA Map Revision. This meands new homeowners will have to carry flood insurance (refundable) until revision. The responsible party in control is the Floodplain Administration & Building Inspections, and Engineers of Record. It is the consensus of staff member present that piece-mealing a floodplain reclamation is not a good idea and that we will revise subdivision ordiance to require that floodplain reclamation be done at one time. That the Engineer of Record will submit to Floodplain Administrator and Building Official a certified lot plat verifying that fill did not encroach on Floodplain and lot is at proper elevation. Public Works Inspector would not have a part of this seeing that responsible for items constructed within the City right-of-way and easements to be dedicated to the City and those lots are private property and would cooperate in aiding the Floodplain Administration & Building Inspector in the future in field observations of placement of fill done during the construction of streets and utilities. SMM/bb q I0 75SL~ ~41 3 COPPELL PUBLIC WORKS December 20, 1988 TO Steve Goram, Director of Public Works~ '~~0 ~ FR:OM: Richard Diane, Park Foreman~ RE FIRM/FIe Update Meeting 12/19/88 A draft response from Mr. Morrison of Kimle_y_..H~rn-a.~_d ~ohn Ka~r~u~er.- .~ohrmG~n i .~sC. gto~n~h~oC~teYref~yS ~emi~raslt t~eeF~M~nr~r~, any floodplain Attached is correspondence related to this preliminary study which identifies areas where Coppell has reclaimed portions of floodplain with a map revision necessary, areas where conditions exist that FEMA has not approved the remedies or flagged them for velocity, storage problem, and lastly, areas where city boundaries are affected with joint jurisdict~ounding communities. A mention of t~ Creekview~project and its acceptance by Public Works raised questions~._.Ru~l~ Doyle. More specifically, the question of why was this area accepted without the lot grading or floodplain/ reclamation work completed prior to homebuilding. This will now require/ each lot to be surveyed and certification made that no encroachment occ~ed within the floodway and that the finished floo~ elevation is above ~he/ base flood elevation (BFE) some 2½ feet in order to delete flood insur~ ance requirements on a mortgage as addit~al yearly--~ A m~hedu~0 p.m.%, o,n_ W~edne.sday,.De.c~ a~' s_lt~' .uatio_n will. .be further c.la~,~f.ied an3 d~~ildin~ I~spections and ~~e t be in attendance. R u s s e submittal ? FEMA in late - Kirnley-Horn and Associates. Inc. 1~0 co~ ,o.,. su~, ~. Dallas. Texas 75251 · (214) 386-7007 I~h. Che~o~e. New,vile. Vif~ini~ Beech. We~hinglon. I~lles. Phoenix. December 18, I988 W~ P~m B~l~,h. T~np~,Orl~ldo, Ft. L,~uderd~e, ¥~o Blmch, FL Myers, Sluart Mr. Jo~ ~rl~her, P.E. Ginn Inc. 17103 Preston Rd. Suite 1~ Dallas, Texas 75240 Re: ~it~' oi ~ppell Prelimanary FI~ ~ur~ce Study (FIS) Review Project No. 9183.~ Dear Mr.~ Karlsruher: We have attended several meetings with your office and the City of Coppell in order to obtain a list of projects that should be included in the FIS revision. This list is the most important aspect of the study review so we have spent a significent effort attempting to define it. Since we have not recieved a specific list we decided to present our best guess and let your office and the city modify it as appropriate. The following projects are included as part of the FEMA prelimanary FIS as per the attached December 5, 1988 memo: 1. Lakes of Coppell by Nathan Maier dated April 4, 1985. This is a 400 Acre development at McArthur and Sandy Lake Road. 2. Irving Flood Control District Modification at the Elm Fork of the Trinity River and Grapevine Creek dated J,~uary 21, 1986. 3. Fill and channel modification of Cottonwood Creek downstream of Sandy Lake Road dated May 23, 1986. 4. Parks of Coppell on Denton Creek at Dento~, Tap Road and Forest Road. 5. Corps of Engineers FIS update of the l~l,n Fork of the Trinity River and the affected tributaries o£ Denton and Grap,;vine Creeks. 6. Dannenbaum revision downstream of Denton Tap Road dated Feburary 1985. Building client relationships since 1967 Revision Study Ginn Inc. Page Two In addition to the '.projects shown above the following projects should, be included as existing condition: 1. Riverchase Proj%~. on the Elm Mater. Fork of the Trinity River by Nathan 2. Creekview Addition on South Grapevine Creek north of the railroad on the east side of Denton Tap Road by Nathan Maier. d / ,..~;'w/ ~ The following proje'cts should be included as exi~'ing conditions, tf-IoWever, they require additional actions before they could be included: 1. Moore Road Bridge project should be included. However, before inclusion as existing condition the City must submit additional information required by FEMA. This information has been supplied to the city. 2. Gateway Project on Grapevine Creek should be included. However, before including this project as existing con, litton the city must provide a statement that no development will be allowed in this area until a drop structure is completed that addresses t[,e. velocity problem identified by FEMA. 3. Magnolia Project west of Denton Tap Roa,[, north of Denton Creek should be included. However, before being included as existing condition Lichliter Jamison must provide as-built plans certified as matching the FEMA approved conditional FIS revision. We are not qualified to define the projec,~ that must be included in the FEMA revision. Therefore this list is only a suggestion. As soon as we recieve written confirmation of the approved list we will preceed to develop the FEMA submittal. This must be a, complished this week in order to meet the schedule confirmed at our earlier mcctings. After we complete the FEMA revision revicw we will present our results at one final meeting. This could be with your staff, or the city, or at Revision Study Ginn Inc. Page Three a council meeting. As we have progressed through this study we have noted that the results will affect many developments occurin~ in the city. We want to clarify that the scope of our work for this project does not include additional meetings, reviews, or other coordination },eyond the final presentation of our review study. We will refer any and all questions in this regard to your office. Thank you for your attention to this matter, and wc look forward to your response to this communication. If you need additional information, pleasc ,:all me. Sincerely, KIMLEY-HORN AND ASSOCIATES, INC. Ronald W. Morrison, P.E. Senior Hydrologist '..4TERNAL MEMORAi. ' UM TO: FROM: DATE: SUB3ECT: Memo for Record Eon Morrison ~ December $, 1988 RESPONSE DATE: FILE: Cr~nver~nti~n with Rod Collln.~ of Dewberry and Davis reszardine vrojects affecting Coppell floodplain. Project No. 9183.08 I discussed my involvement with the review of Coppell's Flood Insurance Study revision, and asked for information about projects approved by FEMA that might affect the results. The following is a list of projects that Mr. Collins provided: Lakes of Coppell - April 4, 1985 Irving Flood Control district modification along Elm Fork and Grapevine Creek - January 2I, 1986 Fill and channel modification along Cottonwood Creek downstream of Sandy Lake Road - May 23, 1986 Parks of Coppell, Denton Creek at Denton Tap Road and Forest Road. Elm Fork Trinity update by Corps of Engineers. This also affects Denton Creek and Grapevine Creek. Denton Creek downstream of Denton Tap Road - February 1985 by Dannenbaum Engineers. Creekside housing community in Danton County on Denton Creek. In addition Rod Collins identified the following as potential changes when a final revision is completed: 2. 3. 4. Grapevine Creek, Creekview addition at Denton Tap Road by Nathan MaJer. Denton Tap Road fill project (I8.4 acres) on Grapevine Creek. Nathan Maier. Bridge replacement on Denton Tap Road. Northport addition on Cottonwood Creek in Grapevine, Texas.