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Description
Steam Line Replacement Statement of Work (SOW) The Department of Veterans Affairs has a need to maintain the existing infrastructure of the facility, which includes the steam that supplies the facilities heating of spaces and items. The Veterans Affairs Medical Center is pursuing a project to replace the existing steam lines across the campus. Contractor shall completely prepare site for building operations, including demolition and removal of existing structures, and furnish labor and materials and perform work for Project 659-24-904: Salisbury Steam Line Replacement as required by drawings and specifications. Estimated construction duration is 365 days. Additionally, the contractor will provide one (1) year of construction warranty. The construction duration will remain at 365 days with the acceptance of bid items 1 and 2, as these items would be performed in conjunction with other construction. Civil EXISTING CONDITIONS Steam Distribution for the site is currently supplied by a steam line constructed back in 1989 which was to replace the older and now abandoned 1965 steam line. During the initial site visit during the hazmat survey of the 1989 (and later 1965) line s insulation materials, it was determined that a new line could be constructed along the pathway of the old 1965 steam line. The scope of work is to replace a portion of this steam line from buildings 10 to 18 (or Manholes 17B through 15), while keeping existing manholes 17B and 16A. DEMOLITION & TRENCH WORK Portions of the 1965 steam line will need to be abated and removed from the ground so that the new proposed steam line can be laid in place. This will require site prep, traffic control and trenching of the existing landscape, including demolition and replacement of concrete sidewalk panels. During demolition, any good in-situ soil shall be kept to reduce the amount of off-site fill required to fill in the trench. All existing utilities that are not a part of the scope that are encountered while excavating the trench shall be left alone and left in place. When encountering roadways, the path will be bored through and a 24-inch steel jacket (with supports for the steam line) will be installed so that the steam line can be brought through and connected to the other side. NEW WORK A new proposed steam line that connects manhole 17-B to manhole 15 shall be installed within the trench and bore hole provided during the demolition and trench work of the construction. Once the new steam line has been installed, tested, and commissioned, the trench will require backfilling back to existing grade. Additionally, the 1989 steam line will be decommissioned and abandoned in place at this time. Three (3) new manholes will be constructed along the path of the old 1965 steam. See the structural section for more details. Structural EXISTING MANHOLES There is one existing manhole that will be re-used as a part of the current redesign, MH-D (renamed MH-10B). There will be a new opening created for …
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