Campground Electrical Upgrades Ball Mountain Dam

The U.S. Army Corps of Engineers, New England District is issuing a set aside for certified small business contractors for the Winhall Brook Campground Electrical Upgrades located in South Londonderry, Vermont. The general description below is given to indicate the approximate scope of this project only. It does not limit the work required under the project drawings and specifications. Campground Electrical Upgrades, Ball Mountain Dam, Jamaica, VT The primary purpose of this project is to upgrade the Winhall Brook Campground utility service to a new primary metered service in accordance with current Green Mountain Power specifications. A new pole mounted interrupter switch shall be provided on the existing USACE wood pole at the service entrance location to deenergize the aerial 7.2kV conductors in the event of campground flooding. Additionally, the USACE owned South campground pole mounted transformer and distribution equipment shall be upgraded in accordance with NFPA 70 standards. New 120/240V, 10, 3W, 800-ampere main circuit breaker service equipment shall be provided adjacent to the new South campground utility pole/transformer. New distribution shall facilitate the upgrade of existing electrical utilities at campground sites S6 thru S28. New pedestals shall be equipped with (1) 14-50R, (1) TT30R, and (1) 5-20R GFI receptacle along with the associated 50A-2P, 30A-1P, and 20A-1P circuit breakers. Underground feeders shall be extended from the new South campground service equipment to refeed the existing 120/240V, 10, 100A, 20-pole panelboard within the restroom and Winhall Brook Camping Area is located in the Green Mountains of Vermont along the Winhall and the West Rivers. Winhall Brook offers 111 campsites of which 14 have lean-to camping shelters (three-sided Adirondack style structure), and 23 currently have electric and water hookups. Other amenities include a dump station, restrooms, firewood, hot showers, playgrounds, horseshoe pits, and hiking/biking trails. The camping area is open from the third Friday in May through Columbus Day. The electric utility (Green Mountain Power) powers the campground from one (1) existing secondary metered service via a pole mounted, 37.5kVA, 7.2kV-120/240V, 10 transformer. Transformer secondary is routed through a USACE owned 400A service disconnect and pole mounted, 75kVA, 120/240V-7.2kV, 10 transformer. Aerial 7.2kV conductors are then routed to the North and South campgrounds. The campgrounds are supported via two (2) USACE owned, pole-mounted, 7.2kV primary transformers at each location. The South Campground is currently provided with 240/120V, 10, 3-wire overhead secondary power. Power to the existing campsites S6 thru S28 derive via underground conduits and above ground pullboxes from the South campground 200-ampere service disconnect to an exposed 120VAC RV Pedestal at each site. Power to the South campground restroom and shower structure is via an underground conduit from the South campground 100-ampere service disconnect to its existing distribution equipment..

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Electrical.