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DR8802-AG 900626 AGENDA REQUEST FORM .. ITEM CAPTION: Presentation by Ron Morrison of Klmley-Horn & Associates, Inc. regarding their review of the Kaye Street drainage issue (north side). Ron Morrison EVALUATION OF IT~= DA~= 6/4/90 The attached report was submitted by Kimley-Horn & Associates, Inc. to the City of Coppell, Engineering Division, on May 31, 1990. Ron N~rrison has been requested to be present at the City Council meeting to present the findings and discuss this matter with City Council. The results of Kimley-Horn's review have been sent to Albert H. Halff & Associates, Inc. for their use in the city-wide drainage study. Halff will take ~on's report and fold it in~o the report Halff will be submitting to the City which will make recommenda- tions to resolve the drainage problem. Additionally, Ms. Lola Jonas has been informed that the petition su~mitted on June 7, 1990 addressing the drainage concern on the sou~h side of the street, has been submitted to Halff & Associates, which they will fold into the city-wide drainage study report. BUDGET AMT.: AMT, ESTIMATED: AMT. +/- ~UDGET: COMMENTS: FINANCIAL REVIE~ ~Y: / LEGAL REVIEW BY: REVIEWED BY 04: ~~'~ AGENDA REQ FORM ~. 0588DS · / Kimley-Horn and Associates, Inc. ENGIhEERS · PLANNERS · SURVEYORS 12660 Colt Road, Suite 200 Dallas. Texas 75251 214 386-7007 Facsimile 214 239-3820 May31, 1990 Mr. Larry Davis Construction Inspector City of Coppeil Post Office Box 478 Coppell, Texas 75019 Re: Kaye Street Drainage Dear Mr. Davis: As requested, we have completed a field survey of the area between the residences along Kaye Street and the Shadowridge Subdivision. The purpose of this survey was to determine the following: 1. Was the Shadowridge subdivision the cause of the drainage problems for the residences along Kaye Street? 2. Do the drainage swales constructed between Shadowridge residences help the drainage problem? 3. Is it possible to construct a PVC line from the back of the Kaye Street residences to Spanish Moss Court in the Shadowridge Subdivision and maintain positive drainage? Based on our field survey information and the "as-built" plan provided by Fox and Jacobs there is not sufficient cause to blame the drainage problems on the Shadowridge Subdivision construction. Even though we do not have detailed topographic information showing conditions that existed before Shadowridge was constructed, it appears that a ridge line existed along the subdivision property boundary which would have diverted flow. Our field survey shows that many of the swales graded by Fox and Jacobs to drain stormwater from the back of the Kaye Street residences to Spanish Moss Court are not properly graded. The result of this causes water to stand on the Kaye Street lots. According to our field survey it is possible to construct a PVC drain from the back of the Kaye Street lots between the Shadowridge residences to Spanish Moss Court and still maintain a positive drain. However, there is not enough fall to construct a standard grate inlet. We have proposed a possible drain to accomplish this in the attachment. We will be glad to discuss this further if needed. Sincerely, KI LEY-HORNeAND ASSOCIATES, INC. Senior Hydrologist 5-90\LDavis.Rla4\9191.16/800 Acting City Engineer Shohre Daneshmand made the presentation to the Council. Mrs. Daneshmand stated that following studies by the City, stop signs are not warranted at these intersections. During discussion, Councilman Morton commended staff and the Police Department on the additional patrolling in the Hunterwood Subdivision. Following further discussion, Councilman Morton moved that the recommendation of staff to not install stop signs at the above stated intersections be approved. Councilman Thomas seconded the motion; motion carried 5-0 with Councilmen Weaver, Thomas, Morton, Cowman and Robertson voting in favor of the motion. Item 7 Presentation by Ron Morrison of Kimley-Horn and Associates, Inc. regarding their review of the Kaye Street Drainage issue (north side). Mr. Ron Morrison of Kimley-Horn and Associates, Inc. made the presentation to the Council. Mr. Morrison stated that their study found that 1) there is not sufficient cause to blame the drainage problems on the Shadowridge Subdivision construction; 2) that field surveys show that many of the swales grated by Fox & Jacobs to drain storm water from the back of Kaye Street residences to Spanish Moss Court are not properly grated; therefore, the result of this causes water to stand on the Kaye Street lots; and 3) according to their field survey, it is possible to construct a pvc drain from the back of the Kaye Street lots between the Shadowridge residences to Spanish Moss Court and still maintain a positive drain. However, Mr. Morrison pointed out that there is not enough fall to construct a standard grate inlet. Therefore, they are proposing a removable grate. Mr. Morrison also indicated that the installation of these pvc pipes could be installed for less than $10,000 in their estimation. During discussion on this item, Council requested the full survey with field notes and drawings with engineers' seal for City files. Mr. Morrison indicated these documents would be provided to the City. Council also expressed disappointment in the information that was submitted and indicated they were looking for definitive solutions to this problem. Following further discussion, Councilman Thomas moved that the City not take any action until it is seen how the study would fold into the overall drainage study that is being conducted by Albert Halff & Associates, Inc., which will be presented to the Council no later than the last meeting in July. Councilman Weaver seconded the motion; motion carried 4-1 with Councilmen Weaver, Thomas, Co%a~an and Robertson voting in favor of the motion and Councilman Morton voting against the motion. Item 8 PUBLIC HEARING - Consider approval of an amendment to the site plan for Case #PD-109, Oakbend Addition on property located near the southeast corner of Thweatt and State Roads. Director of Planning & Community Services Gary Sieb made the presentation to the Council. Mr. Sieb indicated this item is for clarification of a zoning case for which Council considered a zoning ordinance on May 22, 1990. The ordinance submitted did not reflect the site plan and preliminary plat already approved by Council. Consequently, Mr. Sieb asked the Council to clarify their earlier action and direct the drafting of an ordinance which depicted the conditions of the site plan and plat. Mr. Berry Knight representing Centex Realty was also present to discuss this item with the Council. Mayor Wolfe declared the public hearing open and asked for those persons who wished to speak against the proposed zoning change. There were none. He then asked for those persons who wished to speak in favor of the proposed zoning change. Again, there were none. The public hearing was left open at this point. Following discussion by the Council, Councilman Morton moved that this item be tabled until the last regular meeting in July with the public hearing being held open. Councilman Robertson seconded the motion. The motion did not have a definitive status with a 3-2 vote with Councilmen Weaver, Morton and Robertson voting in favor of the motion and Councilmen Thomas and Cowman voting against the motion.