Open Space Advisory Board Agenda and Packet 2011 10 12

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Open Space Advisory Board Minutes Sept. 14, 2011 VI. Discussion: Scott Belonger, Loris & Associates, Design & Engineering for the Aquarius Trailhead Renovation Project Mr. Belonger discussed some of the issues and proposals for enhancements at the Aquarius Trailhead. Current problems include: poor drainage, steep slopes in the o parking lot, poor quality of surface (roadway) materials. Proposed design features include: o Use aggregate/gravel for parking surface material, with colored concrete path along the perimeter; Asphalt apron on/off from the road; Drainage runs towards a center island, and the island will have plantings and a drainage inlet; Small island at the entrance of the trailhead. Site design includes the potential for an enclosed structure to house a portable toilet. Future maintenance is expected to include grading, but otherwise o be relatively minimal. Staff will look more specifically into the potential maintenance costs associated with this design. VII. Discussion: Jeff Moline, City of Lafayette, Lafayette Request for Amendment to the Mayhoffer 15 Management Plan Property is jointly owned by Louisville, Boulder County and Lafayette. The purpose of today’s presentation is to ask OSAB to make a recommendation to add a trail alignment on the north side of the property parallel to SH 42. Property was originally acquired to ensure the continuation of agriculture in the local area, provide urban buffers, preserve habitat, and where appropriate, incorporate trail access. Presently, the three agencies have been working on obtaining a connection between the Coal Creek and Rock Creek Trails, through the large open space that lies between these two trails. th Construction is currently in progress on a trail between 104 St. o and Hwy 287. The proposed trail would run along the northern side of Mayhoffer, and eventually, with additional trail work, would connect with Coal Creek. The trail would be a crusher fine trail. o Because of the three-pronged ownership, OSAB would have to approve the change to the management plan for Mayhoffer Section15. Lafayette and Boulder County have already recommended that the o amendment be approved. Proposed language: “Allow for a soft-surface trail alignment along and inside the north property line such that it most minimally impacts farming operations.”