To: Board of County Commissioners
Through: Gini Pingenot, Director of Open Spaces
Prepared By:
prepared
Glen Poole, Operations Manager, Open Space Departments
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presenter
Presenter: Glen Poole, Operations Manager, Open Spaces Department and David Anderson, Mile High Flood District
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Subject:
title
2:30 PM *High Line Canal Trail, Stormwater Transition and Management Plan Funding
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Purpose and Request:
recommended action
Arapahoe County and the Open Spaces Department acquired 45 miles of the High Line Canal property in June of 2024 from Denver Water. The Mile High Flood District (MHFD), the High Line Canal Conservancy (Conservancy), and the Canal Stormwater Technical Advisory Committee selected ICON Engineering to facilitate and develop a Storm Water Transition and Management Plan (STAMP Plan) for the High Line Canal. The STAMP Plan will serve to guide current and future storm water management and risk mitigation on the High Line Canal.
Open Spaces and a staff member from Mile High Flood District (MHFD) will present a joint project request for $150,000 dollars to assist in funding the STAMP Plan. The total cost for the STAMP Plan is expected to be $657,500, Arapahoe County's $150,000 share represents 22% of the total cost of the STAMP Plan.
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Background and Discussion: The High Line Canal is a 71-mile historic irrigation canal, recreational trail, and linear natural area. In addition to serving as a regional recreational amenity and ecological resource, many sections of the High Line Canal receive inflows of stormwater and provide stormwater conveyance capacity as part of the regions stormwater management system. The MHFD, Denver Water, the High Line Canal Conservancy, and local agency partners have worked together since 2014 to formalize the Canal's use for stormwater management and conveyance.
Given the recent transfer of ownership of significant portions of the High Line Canal to Arapahoe County, the County and the Canal Collab...
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