Specifications UPgo1R- c-O?
SECTION 02 41 19
SELECTIVE STRUCTURE DEMOLITION
SECTION 02 41 19 RECEIVED
SELECTIVE STRUCTURE DEMOLITION
PART 1 GENERAL OCT 2 5 2012
1.01 SECTION INCLUDES
A. Selective demolition of building elements for alterations purposes. CITY OF TIGARD
B. Abandonment and removal of existing utilities and utility structures. BUILDING DIVISION
1.02 REFERENCE STANDARDS
A. NFPA 241 -Standard for Safeguarding Construction, Alteration, and Demolition Operations.
1.03 SUBMITTALS
A. Project Record Documents: Accurately record actual locations of capped and active utilities
and subsurface construction.
1.04 INFORMATION MADE AVAILABLE TO CONTRACTOR
A. "Phase I Environmental Site Assessment, GM Training Center" prepared for General Motors
Worldwide Real Estate by Enecotech Inc. dated: Ausust 23, 1999.
B. "Phase II Environmental Site Assessment and Asbestos Survey. GM Training Center" prepared
for General Motors by Enecotech Inc, dated: December 20, 1999
PART 2 PRODUCTS-- NOT USED
PART 3 EXECUTION
3.01 SCOPE
A. Remove portions of existing buildings as indicated on Drawings.
B. Within area of new construction, remove foundation walls and footings to a minimum of 2 feet
below finished grade or as required to clear new construction, unless otherwise indicated.
C. Outside area of new construction, remove foundation walls and footings to a minimum of 2 feet
below finished grade.
D. Remove concrete slabs on grade as required for new construction.
E. Remove other items indicated, for salvage, relocation, and recycling.
G. Fill excavations, open pits, and holes in ground areas generated as result of removals, using
approved structural fill; compact fill as required by Architect.
H. Remove any underground tanks or abandon in place in accordance with state and local
regulations.
3.02 GENERAL PROCEDURES AND PROJECT CONDITIONS
A. City Bible Church (CBC) intends to occupy and conduct services and other operations in the
existing building during the construction period. Coordinate work schedules and operations
with CDC's use requirements. Coordinate demolition operations to provide for the continued
use by CBC.
1. Perform work operations upon areas adjacent to existing CDC-occupied areas and/or
structures in such manner as to not interfere with continued free and comfortable use of
such areas.
2. During normal facility hours of operation, keep building exits safe, protected, and restricted
from remainder of construction site and clear of obstructions at all times. If closure of an
exit is required by the Work, notify the CDC at least 72 hours in advance and provide
acceptable alternate exit as required.
3. Do not interrupt mechanical, plumbing, electric, gas, water, phone, data or other services
to existing CDC-occupied areas without prior notice and then only at a definite time and
for a definite duration acceptable to CDC.
B. Comply with applicable codes and regulations for demolition operations and safety of adjacent
structures and the public.
Project No 11015 Westside Christian High School
Oct. 2012 Addition/Remodel 02 41 19 - 1
Printed 10/18/12 Demolition Package
SECTION 02 41 19
SELECTIVE STRUCTURE DEMOLITION
1. Obtain required permits.
2. Comply with applicable requirements of NFPA 241.
3. Use of explosives is not permitted.
4. Take precautions to prevent catastrophic or uncontrolled collapse of structures to be
removed; do not allow worker or public access within range of potential collapse of
unstable structures.
5. Provide, erect, and maintain temporary barriers and security devices.
6. Use physical barriers to prevent access to areas that could be hazardous to workers or
the public.
7. Conduct operations to minimize effects on and interference with adjacent structures and
occupants.
8. Do not close or obstruct roadways or sidewalks without permit.
9. Conduct operations to minimize obstruction of public and private entrances and exits; do
not obstruct required exits at any time; protect persons using entrances and exits from
removal operations.
10. Obtain written permission from owners of adjacent properties when demolition equipment
will traverse, infringe upon or limit access to their property.
C. Do not begin removal until receipt of notification to proceed from Owner.
D. Do not begin removal until built elements to be salvaged or relocated have been removed.
E. Protect existing structures and other elements that are not to be removed.
1. Provide bracing and shoring.
2. Prevent movement or settlement of adjacent structures.
3. Stop work immediately if adjacent structures appear to be in danger.
F. Minimize production of dust due to demolition operations.
G. If hazardous materials are discovered during removal operations, stop work and notify Architect
and Owner; hazardous materials include regulated asbestos containing materials, lead, PCB's,
and mercury.
H. Perform demolition in a manner that maximizes salvage and recycling of materials.
3.03 EXISTING UTILITIES
A. Coordinate work with utility companies; notify before starting work and comply with their
requirements; obtain required permits.
B. Protect existing utilities to remain from damage.
C. Do not disrupt public utilities without permit from authority having jurisdiction.
D. Do not close, shut off, or disrupt existing life safety systems that are in use without at least 7
days prior notification to Owner.
E. Do not close, shut off, or disrupt existing utility branches or take-offs that are in use without at
least 3 days prior notification to Owner.
F. Locate and mark utilities to remain; mark using highly visible tags or flags, with identification of
utility type; protect from damage due to subsequent construction, using substantial barricades if
necessary.
G. Remove exposed piping, valves, meters, equipment, supports, and foundations of
disconnected and abandoned utilities. Unused underground utilities may be abandoned in
place.
H. Prepare building demolition areas by disconnecting and capping utilities outside the demolition
zone; identify and mark utilities to be subsequently reconnected, in same manner as other
utilities to remain.
3.04 SELECTIVE DEMOLITION FOR ALTERATIONS
A. Drawings showing existing construction and utilities are based on casual field observation and
existing record documents only.
Project No.11015 Westside Christian High School
Oct. 2012 Addition/Remodel 02 41 19-2
Printed 10/16/12 Demolition Package
SECTION 02 41 19
SELECTIVE STRUCTURE DEMOLITION
1. Verify that construction and utility arrangements are as shown.
2. Report discrepancies to Architect before disturbing existing installation.
3. Beginning of demolition work constitutes acceptance of existing conditions.
B. Separate areas in which demolition is being conducted from other areas that are still occupied.
1. Provide, erect, and maintain temporary dustproof partitions.
C. Maintain weatherproof exterior building enclosure except for interruptions required for
replacement or modifications; take care to prevent water and humidity damage.
D. Remove existing work as indicated and as required to accomplish new work.
1. Remove items indicated on drawings.
E. Services (Including but not limited to HVAC, Plumbing, Fire Protection, Electrical, and
Telecommunications): Remove existing systems and equipment as indicated.
1. Maintain existing active systems that are to remain in operation; maintain access to
equipment and operational components.
2. Where existing active systems serve occupied facilities but are to be replaced with new
services, maintain existing systems in service until new systems are complete and ready
for service.
3. Verify that abandoned services serve only abandoned facilities before removal.
4. Remove abandoned pipe, ducts, conduits, and equipment, including those above
accessible ceilings; remove back to source of supply where possible, otherwise cap stub
and tag with identification.
F. Protect existing work to remain.
1. Prevent movement of structure; provide shoring and bracing if necessary.
2. Perform cutting to accomplish removals neatly and as specified for cutting new work.
3. Repair adjacent construction and finishes damaged during removal work.
4. Patch as specified for patching new work.
3.05 DEBRIS AND WASTE REMOVAL
A. Remove debris,junk, and trash from site.
B. Remove from site all materials not to be reused on site.
C. Leave site in clean condition, ready for subsequent work.
D. Clean up spillage and wind-blown debris from public and private lands.
END OF SECTION
Project No.11015 Westside Christian High School
Oct. 2012 Addition/Remodel 02 41 19-3
Printed 10/18/12 Demolition Package