Demolition includes: ● An approximately 35,000 square foot (sq. ft.) warehouse building identified as Building #1: Steel Freight, Heavy Repair, & Truck Shop. The building was constructed in 1924 and later expanded. The building has a concrete slab foundation and is constructed of steel framing with steel-clad sides. The steel-clad roof is set on exposed steel trusses. The lower exterior wall portions and the walls of shed-like additions are composed of brick and concrete masonry units (CMU). The interior space is predominantly open and includes an overhead crane with a span of approximately 60 feet and its associated tracking. o A stockpile of bricks within this building requires removal and disposal. The bricks were removed from debris from the former Coach Shop during demolition. The bricks are coated with paint that has been determined to be lead-based paint and is currently considered a hazardous waste. The bricks may be disposed of directly as a hazardous waste. Alternatively, they may be treated with a bonding agent (such as EcoBond), subsequently sampled for laboratory analysis, and if the results allow disposed of in a different manner. The bricks shall not be allocated for reuse on another property. ● The remnants of the east wing of Building #3: The former Coach Shop Repair Building that was constructed in 1901. The building experienced fire damage and subsequent demolition removed the west wing of the vertical building, the entirety of the roof, and the interior of the east wing. The portion requiring demolition consists of the exterior brick walls of the one-story, approximate 225-foot by 60-foot east wing that are currently supported by steel struts anchored to concrete barriers. The building was set on a concrete slab foundation that still extends under the entirety of the former 38,000 (sq. ft.) building footprint. ● An approximately 2,900 (sq. ft.) one-story building identified as Building #10: Maintenance Building 2 / Women’s Locker Room. The building was constructed in 1943. The building has a concrete slab foundation and brick exterior. The roof is composed of tar and gravel. Interior materials include CMU block and drywall. ● An approximately 5,200 (sq. ft.) one-story building identified as Building #16: the Laboratory Building. The building was constructed in 1937 and later expanded. The building has a concrete slab foundation and brick exterior. The roof is composed of steel sheeting. Interior construction includes CMU block and drywall. The western portion of the building experienced fire damage resulting in the interior being mostly destroyed/removed and portions of the exterior patched with tarp and/or boarded. ● An approximately 5,800 (sq. ft.) one-story building identified as Building #17: the Roundhouse Forman’s Office or B&B Water Service Building that was constructed in 1906. The building has a concrete slab foundation and brick exterior. The roof is composed of composition shingles. Interior construction includes CMU block and drywall. ● The turntable pit that was built in 1940 and formerly housed a railroad turntable. The pit has an approximate diameter of 130 feet. It is composed of concrete lining and floor with a steel cap lining the perimeter. The walls of the pit are approximately five feet tall and the floor slopes toward the center. The concrete turntable base, located in the center of the pit, requires removal along with the floor, walls, and adjacent surface concrete. Most utility connections for the Burnham Yard property have been disconnected. The contractor shall confirm that all utility connections to the buildings included in this scope are inactive and properly sealed (if necessary). The contractor shall coordinate with the utility providers to properly cut and cap any utilities that are live and/or require capping. All fees associated with those utility disconnects are the contractor’s responsibility. The contractor shall remove the buildings and all trash, debris, equipment, fixtures, and fittings within the buildings. This shall also include the removal of all footings, foundations, and slabs from the buildings. A Hazardous Materials Report (The Report) on each of the structures and surrounding soil is available as Appendix G. (Due to its size the Report is only available via email to the Point of Contact.)The contractor shall remove regulated building materials (RBMs) identified in The Report and be responsible for properly disposing these materials as required by the Colorado Department of Public Health and Environment (CDPHE). The subject buildings shall be demolished in accordance with OSHA and all waste shall be removed in accordance with State and Federal Regulatory disposal laws, guidance, and requirements. Non-friable, asbestos-containing material (ACM) and Lead-Based Paint are present in the buildings as detailed in the Hazardous Materials Report. Window glazing was identified as containing trace asbestos fibers below the threshold of an ACM. The contractor must find a landfill that will accept the non-friable debris and include in their cost the amount to dispose of the non-friable debris. Change orders will not be accepted for the disposal of non-friable debris that have been identified in The Report, after the initial bid for this project. The contractor shall provide the Principal Representative with disposal manifests or other documentation from the landfill indicating the known ACM debris was accepted as non-friable ACM waste. The other regulated ACMs identified in the report will be removed prior to demolition activity. Concrete covered with ACM may not be recycled; all other concrete is able to be recycled. Lead-containing paint is present at the site as detailed in The Report. The contractor shall comply with OSHA regulations for worker safety when disturbing material with asbestos fibers or lead-containing paint. The contractor shall complete and sign the contractor portion of the Colorado Department of Public Health and Environment (CDPHE) Demolition Notification Application Forms for this site and submit them to CDPHE’s Indoor Air Quality Unit. The fee for these permits is the contractor’s responsibility. All work shall be done in accordance with OSHA Subpart T – Demolition §1926.850. This includes that an engineering survey shall be made, by a competent person, of the structure to determine the condition of the framing, floor, walls, and the possibility of an unplanned collapse of any portion of the structure on site. The contractor shall deliver a signed copy of this survey to the Principal Representative prior to starting work and keep a copy on site.
