The builder of both the 1980’s school campus project and the High School, George Larson, has raised two valid questions: how will the removal of materials be handled and would it be cheaper to build on the existing slab from the current 1980’s campus instead of replacing the facilities?
We are happy to provide the following answers presented by Mahlum Architectural firm:
Does the current logic/thinking allow for or encourage the crushing of and re-use of the existing foundation/concrete in further construction/site development?
The project specifications will include comprehensive requirements around managing and recycling construction waste. It is the intent to grind all existing demolished on-site concrete. In addition, all non- usable demolition debris will be prepared for recycling at an approved recycling facility including:
Land-clearing debris; Structural wood, plywood, OSB and particleboard; Bricks, CMU, mortar; Concrete or Asphaltic Concrete that will not be ground and reused on site (ground to maximum 1 1⁄2 inch size); Cardboard, paper, paper-based packaging; Asphalt roofing material; Structural and metal framing; Gypsum drywall; Glass; Vinyl siding and plastics; Carpet and pad material (100% reclamation); Beverage containers; Intact fluorescent metal halide, sodium, mercury lights; Cellulous ceiling material; Excavated soils
The Washington State Sustainable Schools Protocol requires recycling, composting and/or salvage a minimum of 50% or 75% by weight for site waste management. At a recent replacement school building Mahlum recently completed on Bainbridge Island, over 85% of the demolished building was recycled.
Could the district utilize the existing slab and foundation in the Middle School Complex?
The existing middle school building is a multi-level building with no accommodation for ADA (American’s with Disabilities Act). The bond cost model includes approximately $224,000 for excavation, footings, foundations and slab-on-grade construction, inclusive of project development costs. Utility modifications to the existing concrete slab, in addition to accommodations for the ADA, would likely result in little or no savings. However, in the spirit of minimizing waste where feasible, the salvaging and reuse of existing building elements will be studied during the design process.
It is the mission of the Yes for Schools Committee to provide honest and factual information about the upcoming school bond. Please visit our website www.yesfororcasschools.com for more facts about the bond.
Yes for Schools Committee
