J22--991-11-001 _Scaffolding _provide_ SAMPLE .pdf

ITEM NO: 991−11−001

PRELIMINARY SPECIFICATION

USS XXXXXX (SSN− ) 991−11−001ITEM NO:

COAR:

NONECMP:

PLANNER:

SHIP:

PCN: NNSY−

DRYDOCK REQUIRED

SCOPE1.

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

1.2.6

1.2.7

External Hull, Port and Starboard, Including Fairwater, Excluding Radiation Areas

Main Ballast Tank 1A, Between Frames 9.5−13

Main Ballast Tank 1B, Between Frames 9.5−13

Main Ballast Tank 2A, Between Frames 13−21

Main Ballast Tank 2B, Between Frames 13−21

Main Ballast Tank 3A, Between Frames 21−31

Main Ballast Tank 3B, Between Frames 21−31

1.2.1.1

1.2.1.2

1.2.1.3

1.2.1.4

Port Side, Approximately Frames 12 to 75 and Frames 87 to 135, Exact Locations will be Determined Upon Completion of Radiation Hull Surveys and Posting of Radiation Areas

Starboard Side, Approximately Frames 12 to 58 and Frames 87 to 135, Exact Locations will be Determined Upon Completion of Radiation Hull Surveys and Posting of Radiation Areas

Starboard Side, Approximately Frames 58 to 68 and Frames 75 to 87, Exact Locations will be Determined Upon Completion of Radiation Hull Surveys and Posting of Radiation Areas

Forward Pepindicular to Approximately Frame 12, Port and Starboard, Following Removal of Sonar Dome

Location of Work:

Scaffolding; provide

1.1

1.2

Title:

SHIP:

DRYDOCK REQUIRED

REFERENCES

REQUIREMENTS

2.

3.

1.2.8

1.2.9

1.2.10

1.2.11

1.2.12

1.2.13

1.2.14

1.2.15

1.2.16

1.2.17

1.3.1

Main Ballast Tank 4A, Between Frames 122−131

Main Ballast Tank 4B, Between Frames 122−131

Main Ballast Tank 5A, Between Frames 131−142

Main Ballast Tank 5B, Between Frames 131−142

Mud Tank, Between Frames 142−149

Bow Sonar Tank and Sphere, Between Forward Perpendicular and Frame 11−1/2

Secondary Propulsion Motor (SPM) Recess, Starboard Side, Between Frames 125−131

Anchor Housing Recess, Port Side, Between Frames 127−130

Sonar Dome, Forward Perpendicular−Frame 11, In Way of Removed Sonar Dome

Dry Dock # , Temporary Service Bridges and Troughs in Dry Dock Basin

Not Applicable

Identification:

2.1

2.2

2.3

2.4

Standard Items

OSHA 29CFR−1915, Occupational Safety and Health Standards for Shipyard Employment

CODE 970 MEMO 970−33−12, Contractor Scaffolding Policy

PS−29178, SSN− EOH Arrangement in Drydock No. (Sheets 4 and 6)

Prior to installation of scaffolding, an inspection of each area listed in 1.2 will be conducted with the Contractor, SUPERVISOR, NNSY Scaffolding Inspector and/or Project designated scaffolding representative, Project Area Managers, NNSY Tank Area Manager (TAM), and those parties deemed necessary by the Norfolk Naval Shipyard (NNSY) Work Integration Zone Manager (WIZM), to determine

1.3

USS (SSN− )

3.1

SHIP:

DRYDOCK REQUIRED

best possible method and locations for installation of scaffolding to minimize modification of scaffolding.

Accomplish the requirements of 009−09 of 2.1 for scaffolding and roof system to be installed at locations listed in 1.2.1.

Provide, install, and maintain a system type scaffold with sufficient levels and projections to safely reach and have access to all surfaces at each area listed in 1.2.1 and sufficient levels to support a Haki Trak 750 or equal roof system which will cover each area listed in 1.2.1 as directed by the SUPERVISOR. Roof system material (scaffolding portion) will be provided to the Contractor by NNSY and the USS ALBANY Project. Initial installation will include areas listed in 1.2.1.1 and 1.2.1.2. Area listed in 1.2.1.3 will be installed post DMD as directed by the SUPERVISOR. Area listed in 1.2.1.4 will be installed following Sonar Dome removal as directed by the SUPERVISOR. For illustration of NNSY’s expectations in regards to the External Hull enclosure and roof system, to show similar location of system type scaffolding to support roof system, and in support of bidding, refer to 2.4. Sheets in 2.4 are from a Portsmouth Shipyard drawing and are intended only as an illustration of system scaffolding design to support External Hull enclosure and roof system. Required scaffolding locations for the USS ALBANY (SSN−753) are as listed in 1.2.1.

During inspection in 3.1, Contractor, SUPERVISOR, NNSY Scaffolding Inspector and/or Project Designated Scaffolding Representative and those parties deemed necessary by the WIZM will determine Contractor starting/stopping points in regards to the Radiation Areas for both port and starboard sides. This shall be accomplished to ensure and allow for appropriate spacing between Contractor installed scaffolding in 1.2.1.1, 1.2.1.2 and 1.2.1.3 and NNSY installed scaffolding in Radiation Areas.

Install a Haki Trak 750 or equal roof system for scaffolding system installed in 3.3 at each location listed in 1.2.1. Roof system material (scaffolding portion) will be provided to the Contractor by NNSY and the USS ALBANY Project.

NNSY will provide and install the system type scaffolding required to support the haki roof system over the Radiation Areas. Radiation Areas will be approximately from Frames 68 to 75 on the Starboard side, and Frames 75 to 87 on the Port side.

Provide access to external hull scaffolding using access stair units at a total of 6 (each) locations, 3 (each) units will be located port side, and 3 (each) units will be located starboard side as directed by the WIZM and the NNSY Scaffolding Inspector via the SUPERVISOR. Preliminary approximate locations

3.1.1

3.3.1

3.3.2

3.3.3

3.2

3.3

SHIP:

DRYDOCK REQUIRED

Provide, install, and maintain a tube and coupler type, or system type scaffolding to safely reach and allow access to each area listed in 1.2.2 through

1.2.12 as directed by the WIZM via the SUPERVISOR.

Provide, install, and maintain a tube and coupler type, or system type scaffolding with sufficient levels and projections to safely reach and have complete access to all interior surfaces of each area listed in 1.2.2 through

1.2.13 as directed by the WIZM via the SUPERVISOR.

Provide, install, and maintain a tube and coupler type, or system type scaffolding with sufficient levels and projections to safely reach and have complete access to all surfaces in way of Sonar Dome removal areas at location listed in 1.2.16 as directed by the WIZM via the SUPERVISOR. Provide access to scaffolding at location listed in 1.2.16 using an access stair unit at location as directed by the WIZM via the SUPERVISOR.

Provide, install and maintain a tube and coupler type, or system type scaffolding to support temporary service cables, lines, hoses, etc., at location listed in 1.2.17 as directed by the WIZM, NNSY Scaffolding Inspector and NNSY Project Temporary Service Manager via the SUPERVISOR. Exact size and locations for temporary service support scaffolding will be determined during inspection of areas accomplished in 3.1. For bidding purposes, total temporary service support scaffolding sections shall equal a total of 280 linear feet in length and be no more than one level in height at locations as directed by the WIZM and NNSY Scaffolding Inspector via the SUPERVISOR. Portions of the 280 linear feet may be constructed as Temporary Service troughs and will be installed with a plank height of at least 6 inches from the dry dock floor and/or as directed by the WIZM and NNSY Scaffolding Inspector via the SUPERVISOR.

Install, supply/modify scaffolding to encompass portable/rolling type for stair units is between Frames 15 and 20, Frames 60 and 65, and Frames 115 and

120. Exact locations will depend on dry dock layout and will be as directed by the SUPERVISOR.

Provide and install 2 (each) GEDA MH 440 or equal material hoist systems designed for use with system type scaffolding. Material hoist systems shall be capable of reaching all levels of scaffolding installed in 3.3.

Material hoist systems shall be electrically powered, have a turnable platform, and have a load capacity rated at a minimum of 400 pounds. Exact locations for material hoist systems will be determined by dry dock layout and will be as directed by the WIZM and NNSY Scaffolding Inspector via the SUPERVISOR.

NNSY will provide and install access and services brows.

3.3.4

3.3.5

3.4

3.5

3.6

3.7

3.8

SHIP:

DRYDOCK REQUIRED

NOTES4.

scaffolding for areas listed in 1.2.14 and 1.2.15 as directed by the WIZM via the

SUPERVISOR.

Scaffolding shall be installed in accordance with the requirements of

2.2 and the additional NNSY requirements of 2.3.

The Contractor shall respond to notification from the WIZM via the SUPERVISOR concerning any scaffolding taken out of service due to safety issues within 4 hours.

Provide 200 mandays of labor and 25,000 dollars of material to accomplish modifications to scaffolding installed by this Work Item and/or install additional scaffolding not previously identified in this Work Item, as directed by the WIZM via the SUPERVISOR. This will include modifications/installations requested by the WIZM via the SUPERVISOR. Total cost greater or less than above manday and dollar amounts when authorized will be the subject of an equitable adjustment.

Scaffolding shall be installed when directed by WIZM via the

SUPERVISOR.

Remove scaffolding when directed by the WIZM via the SUPERVISOR.

Sheets 4 and 6 of 2.4 are from a Portsmouth Shipyard drawing and are intended only as an illustration of system scaffolding design to support External

Additional scaffoldingInstallation and inspection requirements for work accomplished at NNSY are detailed in 2.3 and required for all scaffolding installed at NNSY.

Submit one legible copy, in hard copy or approved transferrable media, of a weekly report to document labor and material expenditures to the

SUPERVISOR.

Requests for scaffolding installations/modifications shall be submitted by the WIZM to the SUPERVISOR a minimum of 24 hours prior to the need of scaffolding installation/modification.

Scaffolding shall remain installed until all Contractor and NNSY work has been accomplished in each area listed in 1.2. The WIZM will be the responsible party to determine that all work has been completed.

Contractor shall start installation/modification of scaffolding within 24 hours of notification by the WIZM to the SUPERVISOR.

3.12.1.1

3.9.1

3.11.1

3.12.1

3.12.2

3.9

3.10

3.11

3.12

3.13

4.1

SHIP:

DRYDOCK REQUIRED

GOVERNMENT FURNISHED MATERIAL (GFM)5.

5.1

5.2

5.3

Hull enclosure and roof system. Required scaffolding locations for the USS (SSN− ) are as listed in 1.2.1.

1. None.

1. None.

1. None.

LLTM

PUSH MATERIAL

KITTED MATERIAL