DEMOLITION

DEMOLITION

PART 1 - GENERAL

1.1      THE REQUIREMENT

A. The Contractor shall furnish materials, equipment and labor necessary to perform and complete demolition work called for in the Contract Documents.

B. The work includes demolition of foundations, walls, slabs, supports, piping mechanical, electrical, instrumentation, to facilitate new construction as shown and specified.   In addition, various yard piping, electrical, etc. shall be cut, abandoned and capped or removed.

C. Building structures, foundations, slabs, roofs and supporting walls shall be demolished as shown, in an orderly and careful manner.

D. Building  and  treatment  unit  utilities  shall  be  disconnected,  removed,  capped  and identified as necessary and as shown.

1.2      REFERENCE SPECIFICATIONS, CODES, AND STANDARDS

A.         Comply  with  the  applicable  reference  specifications  as  specified  in  the  General
Conditions.

B.         The demolition of shall be in accordance with applicable Owner, City, County, State, and
Federal regulations; and after obtaining required permits, and filing required reports]

C.         Comply with the Uniform Building Code; latest edition.

D.         Comply with the California Code Title 8, Title 22, Title 26 and obtain the required permits.

E.         Comply with applicable sections of Standard Specifications for Public Works Construction
(SSPWC), latest edition.

1.3      SUBMITTALS

A.         General: Submittals shall be made in accordance with the General Conditions.

B. Demolition Schedule:  The Contractor shall submit a complete coordination schedule for demolition work, including shut-off and continuation of utility services, with the Owner’s approval prior to start of the work.  The schedule shall indicate proposed methods and operations  of facility demolition,  and provide a  detailed sequence of demolition and removal work to ensure uninterrupted operation of occupied areas.

1.4      QUALITY ASSURANCE

A.         Comply  with  the  applicable  reference  specifications  as  specified  in  the  General
Conditions.

1.5      JOB CONDITIONS

A. The location and general condition of the facilities to be demolished are shown on the Contract Drawings.  The Contractor shall make allowance in his bid for actual condition of facilities to be demolished.   The Contractor shall visit the site and inspect the existing facilities prior to bid.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1      OCCUPANCY AND POLLUTION CONTROL

A. Water sprinkling, temporary enclosures, chutes, and other suitable methods shall be used to limit dust and dirt rising and scattering in the air.   Comply with government regulations pertaining to environmental protection.

B. Water shall not be used when it creates hazardous or objectionable conditions such as ice, flooding, or pollution.

C. Water contaminated with sediment or hazardous or toxic materials shall not be allowed to run off into the public storm drain system (including street gutters).  Such runoff shall be intercepted, collected and disposed of according to existing environmental regulations.

3.2      PROTECTION

A. Safe passage of persons around area of demolition shall be ensured.  Operations shall be conducted to prevent damage to adjacent buildings, structures, other facilities, and people.

B. Interior and exterior shoring, bracing, or supports shall be provided to prevent movement, settlement or collapse of structures to be demolished, and to adjacent facilities to remain.

C. Existing  landscaping  materials,  structures,  and  appurtenances,  which  are  not  to  be demolished shall be protected and maintained as necessary and in accordance with protection of persons and property and restoration of existing improvements of the General Conditions.

D. The Contractor shall protect and maintain conduits, drains, sewers, pipes, and wires that are to remain on the property.

3.3      STRUCTURE DEMOLITION

A.         Building structures and appurtenances shall be demolished as shown in the Contract
Documents and required to complete work in conformance with governing regulations.

B.         Small  structures  may  be  removed  intact  when  acceptable  to  the  Resident  Project
Representative and approved by authorities having jurisdiction.

C. Demolition  shall  proceed  in  a  systematic  manner,  in  accordance  with  permits  and approved submittals.

D. Concrete and masonry shall be demolished in sections.   Use bracing and shoring to prevent collapse.
E. Demolition  equipment  shall  be  dispersed  throughout  the  structure  and  demolished materials removed in a timely manner to prevent excessive loads on supporting walls, floors or framing.

3.4      BELOW-GRADE DEMOLITION

A. Footings, foundation walls, below-grade construction and concrete slabs on grade shall be demolished and removed.

B. Below-grade areas and voids resulting from demolition of structures shall be completely backfilled  using  structure  backfill  or  sand-cement  slurry  in  accordance  with  Section
02200.

C. After fill and compaction, surfaces shall be graded to meet adjacent contours and to provide flow to surface drainage structures, or as shown.

3.5      DISPOSAL OF DEMOLISHED MATERIALS

A. Demolition and removal of debris shall be conducted to ensure minimum interference with roads, streets, walks, and other adjacent occupied or used facilities which shall not be closed or obstructed without permission from the Owner.   Alternate routes shall be provided around closed or obstructed traffic ways.

B. Site debris, rubbish, and other materials resulting from demolition operations shall be removed at the Contractor's expense.   Burning of removed materials from demolished structures shall not be permitted on site.

C. The  Contractor  shall  provide  a  schedule  for  approval  by  the  Resident  Project Representative, for removal of demolished materials.   Removal and disposal shall be performed in a timely manner.

3.6      PATCHING AND REPAIRING

A. The Contractor shall provide patching, replacing, repairing, and refinishing of damaged areas  involved  in  demolition  as  necessary  to  match  the  existing  adjacent  surfaces whether shown or not shown, with materials and procedures approved by the Resident Project Representative.

B. The Contractor shall repair all damages caused to adjacent facilities by demolition as directed by the Resident Project Representative at no cost to the Owner.

C. The Contractor shall make a detailed inspection after patching and repairing has been completed, and shall carefully remove splattering of mortar from adjoining work (particularly, but not limited to, plumbing fixtures, trim, tile, and finish metal surfaces), and repair any damage caused by such cleaning operations.

3.7      CLEANING

A. During and upon completion of work, the Contractor shall promptly remove unused tools and  equipment,  surplus  materials,  rubbish,  debris,  and  dust  and  shall  leave  areas affected by work in a clean, approved condition in accordance with environmental control of the General Conditions.

B. Clean adjacent structures and facilities of dust, dirt, and debris caused by demolition, as directed by the Resident Project Representative, and return adjacent areas to the condition that existed prior to start of work.

C. The Contractor shall remove and legally dispose of demolished materials and debris from the site.

3.8      SALVAGE

A. The Owner and Contractor shall tag all salvageable items.  The tag shall indicate what the item is, the location and equipment it was removed from, and the date of removal.

B.         The Contractor shall deliver all salvaged items to the location designated by the Owner. C.         All non-salvageable items shall be removed at the Contractor's expense.