SECTION SELECTIVE SITE DEMOLITION

Transcription

1 SECTION SELECTIVE SITE DEMOLITION PART 1 - GENERAL 1.01 DESCRIPTION A. Furnish all labor, materials, and equipment necessary and incidental to the demolition, removal, and disposal of miscellaneous items from the worksite. B. Work under this section shall include but shall not be limited to 1. Demolition and disposal of miscellaneous concrete or asphalt paving, curb and gutter, concrete walkways, pavement and signs, as indicated on the drawings. 2. Protection of all sculptures and public artwork located within the project area. 3. Protection of all adjacent private property from damage during demolition and removal activities RELATED SECTIONS A. Section , Temporary Controls. B. Section , Cleaning PROJECT CONDITIONS A. Visit and examine the project site to assess and personally determine the extent of demolition, associated work, debris removal, disposal, and general work to be done under this section. B. On-site burning or burial of demolition materials will not be permitted. C. Take possession of all demolished materials, except as noted otherwise in the contract documents, and be responsible for disposing of them in accordance with applicable laws and regulations. D. Provide continuous noise and dust abatement as required, preventing disturbances and nuisances to the public, workers, and the occupants of adjacent premises and the surrounding areas. Dampen areas affected by demolition operation as necessary to prevent dust nuisance. Provide pollution controls, dust control, erosion and sedimentation control, and other required protections in accordance with these specifications and requirements of federal, state, and local agencies having jurisdiction over the work Page 1

2 E. When a certain level of noise or vibration is unavoidable because of the nature of the work or equipment involved and such noise or vibration is objectionable to the occupants of adjacent premises, make arrangements with the governmental authorities having jurisdiction, and perform such work or operate such equipment at the most appropriate time periods of the day SUBMITTALS A. Make submittals in accordance with the General Terms and Conditions, Section 2.41, Submittals and 2.42 Shop Drawings. B. Site demolition plan: Indicate methods, procedures, equipment, and structures to be employed. Specify safety measures in accordance with applicable codes including signs, barriers, and temporary walkways. Plans shall be prepared by a professional engineer licensed to practice in the state of Florida, when so required by the provisions of the Florida Board for Professional Engineer. C. Equipment, haul routes, and disposal sites to be used in the demolition and disposal work. D. Permits and notices authorizing demolition. E. Copy of manifests showing delivery of disposed materials in accordance with the plan and permit conditions. F. Certification that all demolished materials removed from the site have been disposed of in accordance with applicable laws and regulations CARE OF EXISTING TREES A. Trees and plants indicated in the Contract Documents to remain and to be preserved shall be protected from damage by constructing suitable barriers or fences at, or near, the driplines of the trees and plants. Vehicles, equipment, materials, and debris shall not be placed or parked in these areas or under trees to remain. B. Water, and maintain protected trees and plants in a healthy, growing condition during the construction period. PART 2 PRODUCTS 2.01 PRODUCTS A. Provide all materials and equipment required for temporary or permanent construction as required for the proper execution of the work of this section. PART 3 - EXECUTION 3.01 EXISTING STRUCTURES AND RELATED FACILITIES A. Perform the demolition and removal of demolition debris in accordance with the Drawings and the submitted and approved site demolition plan Page 2

3 B. All existing and temporary fences (when no longer required to protect and secure the construction site), structures of any character not necessary to the construction of the work shall be removed by the Contractor and disposed of to the satisfaction of the Engineer. C. Protect existing utilities, and other improvements that are not designated to be demolished. Provide and maintain all required temporary construction and facilities for the support and protection of the existing structures to remain. Restore damaged improvements not intended to be demolished. D. Abandoned existing below grade utilities, site utility structures, and appurtenances within the existing building and structure footprints shall not be left in place. Abandonment of in-place existing underground utilities, site utility structures, and appurtenances within these limits shall have prior approval from Engineer. Other utility lines abandoned in place shall be appropriately plugged and capped to prevent migration of soil or water. E. If Contractor's operation is in interference with any fences outside of the demolition limits, Contractor shall be responsible for notifying the Engineer and shall obtain approval prior to any temporary fence relocation. The cost of relocation shall be incidental to the contract and at no cost to the City CURB AND GUTTER, PAVEMENT, AND CONCRETE WALKWAYS A. Perform the demolition and removal of demolition debris in accordance with the submitted and approved plan. B. Saw-cut and remove curb and gutter, pavement, and concrete walkways as needed in performance of this work BACKFILL OF DEMOLITION EXCAVATIONS A. Excavations created by demolition activities shall be backfilled in the same manner as excavations created for the location of existing underground utilities as set forth in Section , Earthwork MAINTENANCE OF TRAFFIC, ACCESS, AND UTILITIES A. Do not interfere with the use of or access to adjacent right-of-ways, buildings or property while work is in progress. B. Do not close or otherwise obstruct tracks or roads without obtaining the City written permission. C. Maintain accessibility at all times to fire hydrants within the construction area. D. Ensure that utilities serving adjacent buildings remain in service. E. Do not remove lines or services of public utility companies. Where removal or relocation of such lines is required, make all necessary arrangements with the utility company involved Page 3

4 F. Coordinate with utility companies involved for shut-off of services if lines are active. G. Conduct operations with minimum interference to pedestrian and vehicular access. Maintain and protect egress and access at all times PROTECTION OF EXISTING PROPERTY AND IMPROVEMENTS A. Where on-site lines are shown on the Drawings to remain, protect and maintain such lines from damage. B. Protect from damage buildings, appurtenances, utilities, and site utility structures that are adjacent to demolition work. C. Erect and maintain temporary bracing, shoring, lights, barricades, and warning signs as necessary to protect roads, tracks, and improvements from damage, including settlement. D. Provide adequate shoring to protect the mainline within project limits during execution and/or removal and reconstruction of utilities or drainage systems. E. Conduct demolition activities so as to minimize interference with adjacent appurtenances, utilities, structures, site utility structures, and occupancies. F. Cease operations immediately if existing utilities, structures, or site utility structures appear to be in danger. Notify Engineer immediately. Do not resume operations until directed in writing by the Engineer. G. Restore structures and improvements within and adjacent to demolition to conditions prior to the start of work DEMOLITION ACTIVITIES A. Sawcut at the limits of existing pavement and other surfaces to be removed where indicated on drawings. B. Backfill excavations caused as a result of demolition work. Backfill material shall be as specified in Section , Earthwork. C. Grade and compact areas affected by demolition work. D. Where abandoned pipes and conduits are permitted to be left in place, cap or plug pipes and conduits. E. Proceed with dewatering procedures only after approval of dewatering plan. PART 4 - MEASUREMENT AND PAYMENT 4.01 MEASUREMENT A. Demolition and removal will be measured by the unit or fraction thereof completed in accordance with the contract documents and as measured by the Page 4

5 4.02 PAYMENT Engineer. The quantities contained on the approved Schedule of Values as derived from the plans will be used as the basis for this measurement. Payment requests for demolition and removal shall include certificates showing legal disposal of materials from the right-of-way. Demolition and removal performed on areas cleared in any borrow sites, on or off the right-of-way, will not be measured for payment. A. Demolition and removal performed in accordance with the contract documents shall be paid for as a lump sum. This price shall be full compensation for furnishing all labor, materials, tools, equipment, fees, supplies, supervision, and incidentals necessary for demolition and removal described by the contract documents. All material, labor, equipment, and incidentals needed to protect the tracks and ballast are considered incidental work to this item. END OF SECTION Page 5