6.3. SR 02-07-2005 - Laserfiche WebLink

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I I I I I I I I I I I I I I I I I I I quality. A copy of the minutes of the meeting with the property owner can be found in Appendix B. The existing storm sewer system on Tipton Avenue and Upland Avenue is proposed to be extended and inlets installed at appropriate locations to alleviate drainage problems in this area. Additionally storm sewer on Fifth Street is proposed to be extended and inlets installed at appropriate locations to facilitate drainage in this area. The proposed storm sewer improvements are shown on Exhibit 6. Sanitary Sewer The sanitary sewer within the project area was televised to determine the extent that repairs or replacement would be necessary. A review of the Closed Circuit Televised Sewer Inspection Report determined that although regular maintenance would be required to remove roots in certain areas no structural damage had occurred to the pipe. The report was discussed with Mr. Gary Leirmoe, Chief Operator, and it was determined that cured in-place pipe lining of the sewer system would be used on the sections of the systems that need improvement. Cured in-place (CIPP) lining is a process where the inside of the existing pipe is lined with a new pipe that helps restore structural integrity and eliminates infiltration in the pipe. This process creates a jointless smooth inner surface that usually results in an increased flow capacity. After the pipe is lined, robotic equipment is used to restore any service connections from within the pipe. CIPP lining is done without any disturbance to the existing street. It is recommended that this portion of the project be completed before any of the other improvements are started. Sanitary sewer pipes to be lined are shown in Exhibit 2. Watermain Watermain improvements were discussed with Mr. Bryan Adams, General Manager of Elk River Municipal Utilities (ERMU). The following items were a result of the discussions and will be incorporated during design: · Some existing services may be lead or other non-copper material. ERMU policy states that non-copper services must be replaced with copper. These services will be identified and replaced as part of the improvements project. · The existing 4-inch watermain on Fifth Street between Rush Avenue and the westerly dead end will be replaced with a larger size main. The exact size will be determined during design through modeling. It is anticipated that a 12-inch main will be required. · Watermain will be directionally bored under TH 10 at Rush Avenue and at Fourth Street. · All existing old-style hydrants will be replaced and possible additional hydrants added. The location of new hydrants will be discussed with Fire Chief Bruce West. 5