Amendment 0003 Tech Specs.pdf

MCL Diversion Dam Low Flow Radial Arm Gate Repairs W912EF21B0012 Amend-0003

SECTION TABLE OF CONTENTS

DIVISION 02 - EXISTING CONDITIONS

SECTION 02 41 23.00 28

REMOVAL AND REINSTALLATION WORK

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 DEFINITIONS

1.3.1 Demolition

1.3.2 Deconstruction

1.3.3 Removal

1.3.4 Reinstallation

1.4 WORK PLANS

1.4.1 Gate Channel Water Handling Plan

1.4.2 Gate Removal Plan

1.4.3 Gate Transport Plan

1.4.4 Gate Reinstallation Plan

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

3.2 ITEMS TO REMAIN IN PLACE

3.2.1 Existing Construction Limits and Protection

3.2.2 Trees

3.2.3 Utility Service

3.2.4 Facilities

3.3 PROTECTION

3.3.1 Pedestrian Protection

3.3.2 Protection of Personnel

3.4 EXISTING CONDITIONS

3.5 EXISTING WORK TO BE REMOVED

3.5.1 Utilities and Related Equipment

3.5.1.1 Disconnecting Existing Utilities

3.5.2 Patching

3.6 DISPOSITION OF MATERIAL

3.7 CLEANUP

3.8 DISPOSAL OF REMOVED MATERIALS

3.8.1 Regulation of Removed Materials

3.8.2 Burning on Government Property

3.8.3 Removal from Government Property

3.9 DUST AND DEBRIS CONTROL

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SECTION 02 41 23.00 28

SECTION 02 41 23.00 28

REMOVAL AND REINSTALLATION WORK

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 Safety and Health Requirements Manual

Comply with the current edition and all changes posted on the web as of the effective date of this solicitation.

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Gate Channel Water Handling Plan ; G, ME

Gate Removal Plan ; G, ME

Gate Transport Plan ; G, ME

Gate Reinstallation Plan ; G, ME

Existing Conditions ; G, ME

1.3 DEFINITIONS

1.3.1 Demolition

Demolition is the process of wrecking or taking out any load-supporting structural member of a facility together with any related handling and disposal operations.

1.3.2 Deconstruction

The process of taking apart a facility with the primary goal of preserving the value of all useful building materials.

1.3.3 Removal

The process of removing existing features of work for repair, refurbishment, or rebuilding for future reinstallation.

1.3.4 Reinstallation

Installation of work previously removed then repaired, refurbished, or rebuilt for reinstallation.

1.4 WORK PLANS

1.4.1 Gate Channel Water Handling Plan

Prepare a Gate Channel Water Handling Plan and submit for approval before work is started. Channel flows during the In-Water Work Window are typically between 20 and 45 cfs (cubic feet per second), with a maximum recorded flow of 135 cfs. See Contracting Clause 52.211-10 Commencement, Prosecution, & Completion of Work, for In-Water Work Window dates.

Include the following in the plan:

a. Means and methods used to control the water flow through the gate channel to an extent the water flow does not inhibit the work.

b. Activity Hazard Analysis for the water handling work.

1.4.2 Gate Removal Plan

Prepare a Gate Removal Plan and submit for approval before work is started. Include the following in the plan:

a. Sequence of removal operations

b. Detailed description of methods and equipment to be used for each operation in the sequence of removal operations.

c. Utility services disconnected during each operation.

d. Activity Hazard Analysis for the gate removal operation.

e. Method used to support the gate when the gate is not closed or is not supported by the lifting gear.

f. Cribbing Plan for supporting the gate whenever the gate is set on the ground.

Provide procedures for safe conduct of the work in accordance with EM 385-1-1 . Plan shall be approved by the Contracting Officer prior to beginning work.

1.4.3 Gate Transport Plan

Prepare a Gate Transport Plan and submit for approval before work is started. Include the following in the plan:

a. A description of the transport vehicle used to transport the gate and the lifting gear.

b. Method and equipment used for securing the gate onto the transport vehicle for transport.

c. Method and equipment used to load and offload the gate from the transport vehicle.

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d. Proposed location for loading and off loading the gate from the transport vehicle.

e. Transport tie-down method. Describe what will be used to protect the gate and paint from damage, tie-down equipment, and how the gate will be secured.

f. Activity Hazard Analysis for the gate transport operation.

Provide procedures for safe conduct of the work in accordance with EM 385-1-1 . Plan shall be approved by the Contracting Officer prior to beginning work.

1.4.4 Gate Reinstallation Plan

Prepare a Gate Reinstallation Plan and submit for approval before work is started. The plan shall provide enough detail to convey the installation steps and processes to insure the gate will be installed and aligned per the contract requirements. The plan shall contain at minimum the following:

a. Sequence of reinstallation operations.

b. Detailed description of methods and equipment to be used for each operation

c. Utility services reconnected during each operation

d. A description of the means and methods to be used to align the gate with the existing concrete walls of the gate well such that the seals are effective.

e. A description of the means and methods to be used to adjust the seals to make them them effective.

f. Seal verification methods.

g. Locking agent repair/paint repair after adjust seals

h. Installation of heat tape in the seal

i. Activity Hazard Analysis for the gate reinstallation operation.

j. Seal corner glue/seal method with heat tape.

k. Method used to support the gate when the gate is not closed or is not supported by the lifting gear.

Provide procedures for safe conduct of the work in accordance with EM 385-1-1 . Plan shall be approved by the Contracting Officer prior to beginning work.

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

Do not begin demolition or deconstruction until authorization is received from the Contracting Officer. In the interest of occupational safety and health, perform the work in accordance with EM 385-1-1 , "Demolition", and other applicable Sections.

3.2 ITEMS TO REMAIN IN PLACE

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government. Repair or replace damaged items as approved by the Contracting Officer.

Coordinate the work of this section with all other work. Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded. Increase structural supports or add new supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this contract. Do not overload structural elements or pavements to remain. Provide supports and reinforcement for existing construction weakened by demolition, deconstruction, or removal work. Repairs, reinforcement, or structural replacement require approval by the Contracting Officer prior to performing such work.

3.2.1 Existing Construction Limits and Protection

Do not disturb existing work or site features beyond the extent indicated or necessary for installation of contract work. Provide protective measures to control accumulation and migration of dust and dirt in all work areas.

3.2.2 Trees

Protect trees within the project site which might be damaged during demolition or deconstruction, and which are not indicated to be removed, by a 6 foot high fence. Erect and secure fence a minimum of 5 feet from the trunk of individual trees or follow the outer perimeter of branches or clumps of trees. Replace any tree designated to remain that is damaged during the work under this contract with like-kind or as approved by the Contracting Officer.

3.2.3 Utility Service

Maintain existing utilities indicated to stay in service and protect against damage during demolition and deconstruction operations. Prior to start of work, utilities serving each area of alteration or removal will be shut off by the Government. Disconnect and seal utilities and disconnected by the Government.

3.2.4 Facilities

Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas, and temporary services or connections for electrical and mechanical utilities. Floors, roofs, walls, columns, pilasters, and other structural components that are designed and constructed to stand without lateral support or shoring, and are determined to be in stable condition, must remain standing without additional bracing, shoring, or lateral support until demolished or deconstructed, unless directed otherwise by the Contracting Officer.

Ensure that no elements determined to be unstable are left unsupported and place and secure bracing, shoring, or lateral supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this contract.

3.3 PROTECTION

3.3.1 Pedestrian Protection

Where pedestrian safety is endangered in the area of removal work, use traffic barricades with flashing lights. Anchor barricades in a manner to prevent displacement by wind. Notify the Contracting Officer prior to beginning such work.

3.3.2 Protection of Personnel

Before, during and after the removal work continuously evaluate the condition of the structure being removed and take immediate action to protect all personnel working in and around the project site.

3.4 EXISTING CONDITIONS

Before beginning any demolition or deconstruction work, survey the site and examine the drawings and specifications to determine the extent of the work. Record existing conditions in the presence of the Contracting Officer showing the condition of structures and other facilities adjacent to areas of alteration or removal. Photographs will be acceptable as a record of existing conditions. Include in the record possible conflicting electrical conduits, plumbing lines, alarms systems, the location and extent of existing cracks and other damage and description of surface conditions that exist prior to before starting work. It is the Contractor's responsibility to verify and document all required outages which will be required during the course of work, and to note these outages on the record document. Submit survey results.

3.5 EXISTING WORK TO BE REMOVED

3.5.1 Utilities and Related Equipment

Do not interrupt existing utilities serving occupied or used facilities, except when authorized in writing by the Contracting Officer. Do not interrupt existing utilities serving facilities occupied and used by the Government except when approved in writing and then only after temporary utility services have been approved and provided. Do not begin demolition or deconstruction work until all utility disconnections have been made.

Shut off and cap utilities for future use, as indicated.

3.5.1.1 Disconnecting Existing Utilities

Remove existing utilities as indicated and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the Contracting Officer. When utility lines are encountered but are not indicated on the drawings, notify the Contracting Officer prior to further work in that area. Remove equipment and deliver to a location on the station project site as directed.

3.5.2 Patching

Where removals leave holes and damaged surfaces exposed in the finished work, patch and repair these holes and damaged surfaces to match adjacent finished surfaces, using on-site materials when available. Where new work is to be applied to existing surfaces, perform removals and patching in a manner to produce surfaces suitable for receiving new work. Finished surfaces of patched area shall be flush with the adjacent existing surface and shall match the existing adjacent surface as closely as possible as to texture and finish. Patching shall be as specified and indicated, and shall include:

a. Concrete and Masonry: Completely fill holes and depressions, left as a result of removals in existing masonry walls to remain, with an approved masonry patching material, applied in accordance with the manufacturer's printed instructions.

3.6 DISPOSITION OF MATERIAL

Except for salvaged items specified in related Sections, and for materials or equipment scheduled for salvage, all materials and equipment removed and not reused or salvaged, shall become the property of the Contractor and shall be removed from Government property. Title to materials resulting from demolition and deconstruction, and materials and equipment to be removed, is vested in the Contractor upon approval by the Contracting Officer of the Contractor's demolition, deconstruction, and removal procedures, and authorization by the Contracting Officer to begin demolition and deconstruction. The Government will not be responsible for the condition or loss of, or damage to, such property after contract award. Showing for sale or selling materials and equipment on site is prohibited.

3.7 CLEANUP

Remove rubbish, snow, dust, dirt, and debris from work areas daily.

Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply local regulations regarding hauling and disposal. Store materials that cannot be removed daily in areas directed by the Contracting Officer.

3.8 DISPOSAL OF REMOVED MATERIALS

3.8.1 Regulation of Removed Materials

Dispose of debris, rubbish, scrap, and other non-salvageable materials resulting from removal operations with all applicable federal, state and local regulations.

3.8.2 Burning on Government Property

Burning of materials removed from demolished and deconstructed structures will not be permitted on Government property.

3.8.3 Removal from Government Property

Transport waste materials removed from demolished and deconstructed work, except waste soil, from Government property for legal disposal. Dispose of waste soil as directed.

3.9 DUST AND DEBRIS CONTROL

Prevent the spread of dust and debris and avoid the creation of a nuisance or hazard in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution.

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