02221_BUILDINGDEMOLITION.doc

USDA Forest Service

Prescott National Forest

Project Specifications

Mingus Work Center & Fire Center Rappel Tower Demolition

SECTION 02221

BUILDING DEMOLITION

GENERAL

1.1 SUMMARY

A. This Section includes demolition and removal of the following:

1. Buildings and structures.

2. Site improvements [including site utilities and features].

B. See SECTION 02230 SITE CLEARING for site clearing and removal of above- and below-grade improvements not part of building demolition.

1.2 DEFINITIONS

A. Remove: Detach items from existing construction and legally dispose of them off-site unless indicated to be removed and salvaged or recycled.

1.3 materials ownership

A. Historic items, relics, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, antiques, and other items of interest or value to the COR that may be encountered during building demolition remain the Government’s property. Carefully remove and salvage each item or object in a manner to prevent damage and deliver promptly to the COR.

1.4 SUBMITTALS

A. Proposed Protection and Control Measures: Submit statement or drawing that indicates the measures proposed for use, proposed locations, and proposed time frame for their operation. Identify options if proposed measures are later determined to be inadequate. Include measures for the following:

1. Environmental protection.

2. Dust control.

3. Noise control.

B. Schedule of Building Demolition Activities: Indicate detailed sequence of demolition and removal work, with starting and ending dates for each activity, interruption of utility services, and locations of temporary protection and means of egress.

C. Predemolition Photographs: Show existing conditions of adjoining construction and site improvements, that might be misconstrued as damage caused by building demolition operations. Submit before Work begins.

D. Landfill Records: Indicate receipt and acceptance of hazardous wastes by a landfill facility licensed to accept hazardous wastes.

E. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician responsible for recovering refrigerant, stating that all refrigerant that was present was recovered and that recovery was performed according to EPA regulations. Include name and address of technician and date refrigerant was recovered.

1.5 QUALITY ASSURANCE

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning demolition (see SOW Section 5.0). Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI A10.6 and NFPA 241.

C. Predemolition Conference: Conduct conference onsite with CO prior to work starting.

1.6 PROJECT CONDITIONS

A. Buildings to be demolished will be vacated and their use discontinued before start of Work.

B. Government assumes no responsibility for buildings and structures to be demolished.

1. The Government as far as practical will maintain conditions existing at time of inspection for bidding purpose.

C. Hazardous Materials: It is expected that hazardous materials will be encountered in the Work.

SPEC WRITER: RETAIN PARAGRAPH AND SUBPARAGRAPHS ABOVE AND DELETE PARAGRAPH AND SUBPARAGRAPHS BELOW IF ASBESTOS, PCBS, OR OTHER HAZARDOUS MATERIALS ARE PRESENT AND GOVERNMENT HAS A SEPARATE CONTRACT TO REMEDIATE THESE MATERIALS BEFORE BUILDING DEMOLITION BEGINS.

D. Lead Based Paint (LBP): A recent test report on samples taken on March 14, 2016 indicate that there is no LBP present in the Ready Room building. The Shop building is a prefabricated metal building constructed after 1978. Therefore, there is no LBP suspected in the building.

SPEC WRITER: DELETE SUBPARAGRAPH BELOW IF NO MATERIALS ARE KNOWN TO BE PRESENT OF IF THE GOVERNMENT DOES NOT HAVE, OR WILL NOT PROVIDE, MATERIAL SAFETY DATA SHEETS FOR THESE MATERIALS.

E. Asbestos – Based on a May 7, 1993 inspection report completed by John G. Feustel of Environmental Service & Technology, Inc., it was been determined that there is asbestos-containing materials in the drywalls of the ceiling and walls and in the tar and gravel of the roof. The roofing was replaced in 2005 and is now free of asbestos-containing materials.

1. Hazardous material remediation is specified in SECTION 028200 ASBESTOS MATERIALS REMEDIATION.

SPEC WRITER: DELETE SUBPARAGRAPH BELOW IF NO MATERIALS ARE KNOWN TO BE PRESENT OF IF THE GOVERNMENT DOES NOT HAVE, OR WILL NOT PROVIDE, MATERIAL SAFETY DATA SHEETS FOR THESE MATERIALS.

2. Please refer to Statement of Work (SOW), Section 5.0 EPA NOTIFICATION REQUIREMENTS in regards to notification requirements prior to commencing work.

F. Storage or sale of removed items or materials on-site is not permitted.

PRODUCTS

1.7 SOIL MATERIALS

A. Satisfactory Soils: Comply with requirements in SECTION 02300 EARTHWORK.

EXECUTION

1.8 EXAMINATION

A. Survey existing conditions and correlate with requirements indicated to determine extent of building demolition required.

B. Government does not guarantee that existing conditions are same as those indicated in drawings.

C. When unanticipated mechanical, electrical, or structural elements are encountered, investigate and measure the nature and extent of the element. Promptly notify the COR.

SPEC WRITER: USUALLY RETAIN FIRST OPTION IN PARAGRAPH BELOW OSHA REGULATIONS REQUIRE THAT A “COMPETENT PERSON” PERFORM AN ENGINEERING SURVEY BEFORE BUILDING DEMOLITION BEGINS.

D. Perform an engineering survey of condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during building demolition operations.

SPEC WRITER: RETAIN BELOW IF HAZARDOUS MATERIAL REMEDIATION IS PART OF THE WORK OF THIS CONTRACT.

E. Verify, if any, hazardous materials have been remediated before proceeding with building demolition operations.

1.9 PREPARATION

SPEC WRITER: RETAIN ONE OF TWO “EXISTING UTILITIES” PARAGRAPHS BELOW, IF APPLICABLE.

A. Existing Utilities: Locate, identify, disconnect, and seal or cap off indicated utilities serving buildings and structures to be demolished.

1. Arrange to shut off indicated utilities with utility companies.

2. If utility services are required to be removed, relocated, or abandoned, before proceeding with building demolition provide temporary utilities that bypass buildings and structures to be demolished and that maintain continuity of service to other buildings and structures.

3. Cut off pipe or conduit a minimum of 24 inches (610 mm) below grade. Cap, valve, or plug and seal remaining portion of pipe or conduit after bypassing.

B. Existing Utilities: Do not start demolition work until utility disconnecting and sealing have been completed and verified in writing.

C. Temporary Shoring: Provide and maintain interior and exterior shoring, bracing, or structural support to preserve stability and prevent unexpected movement or collapse of construction being demolished.

1.10 PROTECTION

SPEC WRITER: REVISE BELOW TO SUIT PROJECT. DELETE IF ADEQUATELY COVERED IN DIVISION 1 SECTION “TEMPORARY FACILITIES AND CONTROLS.”

A. Temporary Protection: Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction, and as indicated. Comply with requirements in Section 01500 Construction Facilities and Temporary Controls."

1. Protect existing site improvements, appurtenances, and landscaping to remain.

1.11 DEMOLITION, GENERAL

A. General: Demolish indicated existing ready building and shop building at Mingus Work Center and Rappel Tower at Prescott Fire Center. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Do not use cutting torches until work area is cleared of flammable materials. Maintain portable fire-suppression devices during flame-cutting operations.

2. Maintain adequate ventilation when using cutting torches.

3. Locate building demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

B. Engineering Surveys: Perform surveys as the Work progresses to detect hazards that may result from building demolition activities.

C. Site Access and Temporary Controls: Conduct building demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, or other adjacent occupied and used facilities.

1. Use water mist and other suitable methods to limit spread of dust and dirt. Comply with governing environmental-protection regulations. Do not use water when it may damage adjacent construction or create hazardous or objectionable conditions, such as ice, flooding, and pollution.

1.12 MECHANICAL DEMOLITION

SPEC WRITER: PARAGRAPHS AND SUBPARAGRAPHS IN THIS ARTICLE ARE EXAMPLES ONLY. ADD TO, DELETE, OR REVISE TO SUIT PROJECT.

A. Proceed with demolition of structural framing members systematically, from higher to lower level. Complete building demolition operations above each floor or tier before disturbing supporting members on next lower level.

B. Remove debris from elevated portions by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

1. Remove structural framing members and lower to ground by method suitable to minimize ground impact or dust generation.

SPEC WRITER: RETAIN ONE “BELOW-GRADE CONSTRUCTION” PARAGRAPH AND ASSOCIATED SUBPARAGRAPH BELOW. COORDINATE WITH OTHER DIVISION 2 SECTIONS. REVISE TO SUIT PROJECT.

C. Below-Grade Construction: Remove below-grade construction, including basements, foundation walls, and footings, completely SPEC WRITER: RETAIN ONE “EXISTING UTILITIES” PARAGRAPH AND ASSOCIATED SUBPARAGRAPH BELOW. COORDINATE WITH OTHER DIVISION 2 SECTIONS. REVISE TO SUIT PROJECT.

D. Existing Utilities: Abandon existing utilities and below-grade utility structures. Cut and cap utilities at least 18” below grade.

1.13 EXPLOSIVE DEMOLITION

A. Explosives: Use of explosives is not permitted.

1.14 SITE RESTORATION

SPEC WRITER: RETAIN PARAGRAPH ABOVE OR FIRST PARAGRAPH BELOW; COORDINATE WITH DIVISION 2 SECTION “EARTHWORK.”

A. Below-Grade Areas: Completely fill below-grade areas and voids resulting from building demolition operations with satisfactory soil materials according to backfill requirements in Section 02300 Earthwork.

B. Site Grading: Uniformly rough grade area of demolished construction to a smooth surface, free from irregular surface changes. Provide a smooth transition between adjacent existing grades and new grades.

1.15 REPAIRS

A. General: Promptly repair damage to adjacent construction caused by building demolition operations.

B. Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials.

C. Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

1.16 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Except for items or materials indicated to be recycled, reused, salvaged, reinstalled, or otherwise indicated to remain Government property, remove demolished materials from Project site and legally dispose of them in an EPA-approved landfill.

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials off Government property and legally disposes of them.

1.17 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by building demolition operations. Return adjacent areas to condition existing before building demolition operations began.

END OF SECTION 02221

02221-4