City Council Agenda and Packet 2010 10 05

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COUNCIL COMMUNICATION TO: MAYOR AND CITY COUNCIL FROM: MALCOLM FLEMING, CITY MANAGER DATE:OCTOBER 5, 2010 SUBJECT: APPROVAL/CONCURRENCE OF THE SELECTED PLAN FOR THE LAFAYETTE- LOUISVILLE BOUNDARY OUTFALL SYSTEMS PLAN ORIGINATING DEPARTMENT: PUBLIC WORKS DEPARTMENT SUMMARY: The Lafayette-Louisville Outfall Systems Plan (OSP) is a drainage planning study being funded by the Cities of Louisville and Lafayette in conjunction with the Urban Drainage and Flood Control District (District). The OSP conceptually identifies future drainage improvements in order to safely route the drainage runoff from the 100- year storm event from the City of Louisville, across the Harney Lastoka Open Space to Coal Creek. Staff presented the th Lafayette-Louisville OSP to City Council at their Study Session on Tuesday, September 28. FISCAL IMPACT: Approval of the Lafayette-Louisville OSP does not have an immediate fiscal impact. However, the drainage improvements identified within the City of Louisville will require 50% funding by the City with the other 50% funding being provided by the District. RECOMMENDATION: Staff recommends that Council approve the attached Selected Plan for the Lafayette-Louisville OSP within the City limits with the following modifications. The North End Detention Pond will be revised to reflect the future detention pond to be constructed by the North End Development and the City of Louisville will obtain easements for the Anderson South Pond, Louisville Plaza Pond, Schempp Commercial Pond and the Schempp South Pond giving the City permission to maintain the ponds if necessary in order to ensure they are functioning as designed. Staff also recommends City Council concur with the improvements being recommended outside the City limits. ATTACHMENT: 1. Selected Plan for the Lafayette-Louisville Boundary Outfall Systems Plan SUBJECTAGENDA ITEM APPROVAL/CONCURRENCE OF THE SELECTED PLAN FOR THE LAFAYETTE- 4D LOUISVILLE BOUNDARY OUTFALL SYSTEMS PLAN 39