Open Space Advisory Board Agenda and Packet 2014 12 10

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Five -Year Capital Improvement Program Request for Capital Equipment or Capital Improvement Project Project or Equipment Identification i Estimated Expenditure Schedule Project Name: US 36 Underpass at Davidson Mesa Version of Request: 2014 05 08 Submitting Department/Division: Public Works - Engineering Impacted Departments/Divisions: Funding Sourcet;sj: Open Space & Parks Fund Other Percent Total Funding Department Priority Equipment or Project Costs Land Acquisition Design & Engineering Other Prot Services Construction Other Capital Equi pmcnl Total Pro ect Costs Grants) or Other Project Revenue Impact to Annual Mainticp Costs Project Location Map, Equipment Identification Photo, or Other Year 1 Year 2 Year 3 Year4 Year 5 Five -Year 2015 2016 2017 2415 2019 Total 162,500 162.500 162,500 162,500 Beyond 5 Years Project or Equipment Description and Justification Please provide a general project description and inciudc the cost al location methode fogy if more than one funding source is requested: This project represents the City's contribution in the total amount of $467,500 (75%) for a pedestrian underpass to be constructed under US 36. The total project cast is 5650,000 with the remaining $162,500 (25° %) being funded by Boulder County. $162,500 was committed in 2013 and 2014 by the City with $162,500 committed by Boulder County in 2013. This project is being constructed by COOT via an IGA with the City and Boulder County as part of the US 36 Phase II Corridor Improvements Project. Please describe whys this project is needed, how it supports City -wide goals and objectives, wtrat realistic options or alternatives have been considered, and what payback, or return on investment, has been calculated: There are no grade separated trail crossings of US -36 west of McCaslin Blvd in the Louisville and Superior area. Trail users desiring to use trails on the other side of US -36 west of McCestin Blvd must either use McCaslin Blvd, the RTI] Transit Bridge or use the Coal Creek Trail east of McCaslin Blvd which can be arduous and not convenient and puts trait users on McCaslin Blvd, a busy arterial roadway. This project will connect tithe CitY's recreational trails at Davidson Mesa with the existing Marshall Mesa trails south of U546 creating a regional recreational trail network between Louisville and Lafayette north of US -36 and Superior and Boulder County south of US -36. Trait users will be able to access outer jurisdictional recreational trails west o McCaslin Blvd without crossing a busy arterial roadway or transporting their bicycles across US -36 at the RTD Transit Bridge. CD OT's Phase II Corsstructien Project on US -36 represents the best opportunity to construct a grade separated crossing with US -36 because the Design -Build Team will be replacing an adjacent irrigation culvert and will have traffic control measures in place to construct the new culvert, They will most likely be able to use the same traffic control measures to construct the multi -use underpass. Additionally, the cost would be approximately two - thirds more expensive should the City decide to construct this underpass in the future when a major highway reconstruction project is not occurring concurrently. Please provide a description of any grants andfor other revenue associated with this project and the ongoing operational and !maintenance casts associated with this project.: This project is being constructed by C DOT via an IGA between the City and Boulder County, 17