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DR8802-CS 900806 COPPF. LL PUBLIC WORKS MRMORANDUM DATE: August 6, 1990 ~TS~. ~1~: Steve Goram, uirector of Public Works Daneshmand, Acting City Enginee~ FROM: Shohre RE: North Kaye Street Drainage Executive Summary Analysis of Existing Condition~~' ~ ~ The result of site investigations by, City's staff and ~ consultant, Albert H. Halff & Associates/indicates that there ~,/~ / i~..a .dr~iD~_~roblem along the north side of Kaye Street. ~~+~~s been aggravated by Shadow Ridge Estates development and construction of homes, driveways, fences, swimming pools, landscaping, etc. Proposed Solution City staff has reviewed the two proposed solutions, by Albert H. Halff and Associates, for this drainage problem and recommends that a 15-inch and 18-inch PVC, along with PVC area drains, be installed as shown on attached figure. Cost Estimate The cost estimate for this drainage improvement is $102,000.00. Please note that Albert H. Halff initially had estimated $85,000.00, as shown on the attached itemized cost list. However, per staff's review and comments, they revised the estimate to include testing, surveying, contract administration/inspection and construction. Site Investigation and Contacts with Affected Home Owners Staff met with most home owners on north side of Kaye Street and also met with some of the home owners on Spanish Moss Court, just north of Kaye Street. Staff left a notification for those who were unavailable to be contacted in person. Generally, we received lots of support from affected home owners, especially along north side of Kaye Street. Staff indicated to each home owner that City needs ten (10) feet of drainage easement throughout the proposed system's route, and verbally they had no objection to this request. Please note that according to Larry Jackson, City Attorney, we should acquire drainage easements from each individual home owners before any construction takes place and therefore, easement dedication documents need to be prepared and fully executed. We made the affected home owners aware of the upcoming City Council meeting (August 14, 1990) regarding this item. General Comments Made by North Kaye Street Home Owners: -- They want fences to be put back in their original places. -- They are willing to dedicate drainage easements, but ask that City consider using the existing utility easements along Shadow Ridge Estates, wherever there may be obstacles which may be costly to remove and/or replace, such as sheds, etc. -- Some expressed concerns about double fences in their back yard with tall grass and trees growing inside them and that they were hard to maintain. -- Most of them indicated that they didn't have such drainage problem in the past until Shadow Ridge Estate subdivision was built, and therefore, they felt that the developer should participate in cost. -- Few indicated that having an alley in the back would have solved this drainage problem. General Comments Made BV Affected Spanish Moss Court Home Owners (Please note that staff was able to talk to four (4) home owners out of fifteen (15).) -- They have no objection with City using the existing 10' utility easement, as long as the grading, landscaping and fences are restored. -- Some were concerned about existing large trees, which caused them to pay extra to buy such lots. They want to be kept informed of this project. -- That whether the existing inlet on Spanish Moss Court can handle the drainage flow. -- Generally, I received support from home owners that I talked to and an indication that they will work with the City. Staff's Comments -- If approved by the City Council and funds allocated, the actual survey, engineering design and construction will take approximately three (3) months, assuming that there is no unexpected delays. -- Based on the site investigation, ten (10) feet of drainage easement can be acquired for most parts with the exception of few locations. To avoid any major costs, we should consider using whatever available drainage easement (4' to 6') given in combination with the existing utility easement on Shadow Ridge Estate lots. The possibility of acquiring a customed drainage easement does exist. -- Staff is in process of exploring some additional ways of getting assistance toward funding this drainage improvement. This effort is in progress. -- Staff will be available at the August City Council meeting to answer any questions that you may have. MSD/bd NOKAYEST.MSD