Open Space Advisory Board Agenda and Packet 2015 08 12

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,s City of Louisville 1 Overlook Underpass Trail- Connecting Davidson Mesa to the lvlayhoffer- Singletree Trail: An underpass is proposed at this location with construction completion expected in 2015. The proposed underpass would enable citizen's safe access across Highway 36 which would make a connection possible from the Davidson Mesa trail system to the Mayhoffer- Singletree trail. This connection would allow citizens to access the Cowdrey Draw, Marshall -Mesa, Community Ditch and Doudy Draw trails along with other City of Boulder trails in the Foothills. TR Same as Superior #f1. Boulder County has partnered with CDOT, City of Louisville and Town of Superior to construct a new pedestrian underpass under US Highway 36. The underpass is scheduled to open in 2015 along with the rest of the US36 Bikeway. Boulder County is working with Louisville to determine a route that would connect the underpass trail to the Cohig section of the Mayhoffer- Singletree Trail. 2 104th Street Trail- Connecting Coal Creek Trail with flock. Creek Trail and the Carolyn Holmberg Preserve at Rock Creek Farm: The total trail length would be approximately two miles. This trail would connect the regional Coal Creek trail to the Carolyn Holmberg Preserve at Rock Creek Farm, the regional Rock Creek trail and the Sterns Lake trailhead. Would make a connection possible from the Davidson Mesa trail system to the Mayhoffer - Singletree trail. This connection would allow citizens to access the Cowdrey Draw, Marshall -Mesa, Community Ditch and Doudy Draw trails along with other City of Boulder trails in the Foothills L'ville / Laf/ 1 P05 (Same as Lafayette #41) Planning for the 104th Street Central Connector Trail continues. The crossings of 5H42 and Dillon Road remain the primary impediments to moving forward with planning and construction. As an interim step to completing the entire trail, Lafayette has indicated a desire to construct the portion of the alignment along the west side of the jointly -owned Mayhoffer 15 property between SH42 and Cherry St. A design for this portion of the trail can be done when the partners decide to make it a priority. When the timeframe for the reconfiguration of the road crossings is identified by Louisville and the parties come to agreement on the location of the alignment, a new target for a grant application can be submitted. 3 Warembourg Trail- Connecting Coal Creek Trail with Rock Creek Trail and the Carolyn Holmberg Preserve at Rock Creek Farm: This trail would provide a second connection between the regional Coal Creek and Rock Creek trails. This segment would be a more direct connection for Louisville residents as it departs from a more central location within the community. This connection would also provide a nice loop experience by connecting into the proposed 104th Street trail. Although this concept is identified as a conceptual trail corridor in the Boulder County Comprehensive Plan additional discussions is needed to determine trail alignment in regards to agricultural areas and privately owned parcels. This Boulder Valley Comprehensive Plan has this recorded as a conceptual trail corridor, P05 POS is willing to work with Louisville on evaluating trail routes in this area. Challenges include possible agricultural irnpacts and gaps in and ownership. Funding is not currently identified in the POS CIP, but it could be funded out of the Trail Planning Approvals line item in 2018, 2019 or 2020. Boulder County anticipates that Louisville will take the lead on this project. Page 10* 2014Commur yTRAILRequests— SummaryandStatusReport 10