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Emsworth Back Channel Dam Abutment Stabilization EMSBCRA Right Abutment

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 11 00

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 SUMMARY

1.2 REFERENCES

1.3 SUBMITTALS

1.4 DRAWINGS

1.4.1 Contract Drawings - General

1.4.2 Reference Drawings

1.5 WORK AREAS AND RESTRICTIONS

1.5.1 General

1.5.2 Work Areas

1.5.2.1 Surcharge Restrictions on Existing Abutment Wall

1.5.3 Access to Project Site

1.5.3.1 Back Channel Access

1.5.4 Existing Roads and Property

1.5.4.1 General

1.5.4.2 Hauling Permits

1.5.5 Laydown, Storage, and Parking Areas

1.5.5.1 Temporary Work Area Easement Relocations

1.5.6 Utilities

1.6 EXISTING SURVEY CONTROLS

1.6.1 Project Alignment

1.7 CONTRACTOR'S FLOATING PLANT

1.7.1 General

1.7.2 Equipment Requirements

1.7.3 Signal Lights and Markers

1.7.4 Maintenance of Floating Plant

1.7.5 Mooring of Floating Plant

1.7.6 Suspension of River Traffic and Construction

1.7.6.1 Withdrawal of Equipment and Floating Plant

1.7.6.2 Plan of Action, Withdrawal of Equipment and Floating Plant

1.7.6.3 Compensation and Extension of Contract Period, Suspension of Work

1.7.7 Operation of Small Water Craft

1.7.8 Other Contractor Floating Plants

1.8 RESTRICTIONS TO RIVER TRAFFIC FOR CONSTRUCTION

1.9 PROTECTION AND MAINTENANCE OF ROAD TRAFFIC

1.10 DAMAGE TO WORK

1.11 PROTECTION OF UTILITIES

1.12 COORDINATION AND MANAGEMENT OF BULKHEADS AND LIFT GATES

1.13 OPERATION OF GOVERNMENT FACILITY

1.13.1 Emsworth Locks and Dams, Hours of Operation

1.13.2 Contractor's Work Hours

1.13.3 Other Active Contract Work

1.13.3.1 Main Channel Dam Rehabilitation

1.13.3.2 Main Channel and Back Channel Service Bridge Repairs

1.13.3.3 Back Channel Dam Left Abutment Stabilization

1.13.4 Coordination with Dam Operations

SECTION TABLE OF CONTENTS 01 11 00 Page 1

1.13.5 Government Service Crane and Bulkhead Hoist

1.13.6 Contractor Coordination and Scheduling

1.14 SAFETY AND HEALTH REQUIREMENTS

1.15 POOL LEVELS

1.16 INSPECTIONS AND ACCEPTANCE OF WORK

1.16.1 General

1.16.2 Access to Work

PART 2 PRODUCTS

2.1 PRODUCTS AND PARTS OF STANDARD MANUFACTURE

PART 3 EXECUTION

3.1 SEQUENCE AND CONDITIONS OF WORK

3.1.1 Sequence of Work

3.1.2 Conditions of Work

3.1.2.1 Operation of Dam Gates During Contract Work

3.2 RECORDS AND REPORTS

-- End of Section Table of Contents --

SECTION TABLE OF CONTENTS 01 11 00 Page 2

SECTION 01 11 00

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 SUMMARY

This section addresses the general requirements applicable to the performance of the work under this contract. These requirements are in addition to those specified in other sections of the contract.

1.2 REFERENCES

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

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

33 CFR 81 72 COLREGS: Implementing Rules

33 CFR 84 Annex I: Positioning and Technical Details of Lights and Shapes

33 CFR 89 Inland Navigation Rules: Implementing Rules

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2008) Safety and Health Requirements Manual

EM 1110-2-1902 (2003) Slope Stability

EM 1110-2-2104 (2003) Strength Design for Reinforced - Concrete Hydraulic Structures

EM 1110-2-2105 (1994; Change 1) Design of Hydraulic Steel Structures

EM 1110-2-2502 (1989) Retaining and Flood Walls

EM 1110-2-2503 (1989) Design of Sheet Pile Cellular Structures Cofferdams & Retaining Structures

EM 1110-2-2504 (1994) Design of Sheet Pile Walls

1.3 SUBMITTALS

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

submittals not having an "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

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Propelling Unit Agreement; G|RE

The written agreement between the Contractor and the lessor documenting the requirement for required towboat or propelling unit to be onsite within the specified time limit shall be provided to the Contracting Officer prior to mobilization of any floating plant to the worksite.

Access Plan; G|RE

The Contractor shall submit an access plan for Government lock operating personnel and inspectors to the Contracting Officer.

Temporary Mooring Facilities; G|RE

The Contractor shall submit any proposed plans for development of temporary moorings to the Contracting Officer. Moorings shall be designed in accordance with the requirements herein.

Plan of Action, Withdrawal of Equipment and Floating Plant; G|RE

The Contractor shall prepare and submit a Plan of Action for Withdrawal of Equipment and Floating Plant in accordance with paragraph "Plan of Action, Withdrawal of Equipment and Floating Plant".

Small Water Craft Operations Plan; G|RE

The Contractor shall develop and submit a plan for operation of small water craft within the area of the dam.

1.4 DRAWINGS

1.4.1 Contract Drawings - General

The contract drawings provided reflect the work to be performed under this contract. The Contractor shall check all drawings immediately upon receipt, and verify the figures, dimensions, and representation of the work. The Contractor shall compare all drawings and verify the figures before laying out the work. Dimensions marked on drawings shall, in general, be followed. Use of scaled measurements shall not be allowed.

The Contractor shall promptly notify the Contracting Officer of any discrepancies, and shall be responsible for any errors which might have been avoided by complying with this paragraph. Any omissions from the contract drawings, specifications, or incorrect description of details of the work which are manifestly necessary to carry out the intent of the contract drawings and specifications, or which are customarily performed, shall not relieve the Contractor from performing such omitted or incorrectly described details of work, but shall be performed as if fully and correctly set forth and described in the contract drawings and specifications. Unless otherwise noted, dimensions and elevations, and other features shown on contract drawings are generally based on site surveys and measurements. The Government cannot guarantee the accuracy of the dimensions, elevations, and features shown on the contract drawings which are based on the reference drawings, and it shall be the responsibility of the Contractor to verify all elevations and the dimensions shown by measurements in the field, at no additional cost to the Government.

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1.4.2 Reference Drawings

The reference drawings included with the folio of contract drawings show existing conditions to the best knowledge of the Government. Unless otherwise noted, dimensions, elevations, and other features shown on contract drawings, are generally based on the reference drawings supplemented by field surveys. The Government cannot guarantee the accuracy of the dimensions, elevations, and features shown on the reference drawings or on the contract drawings which are based on the reference drawings, and it shall be the responsibility of the Contractor, whenever necessary, to verify all elevations and the dimensions shown by measurements in the field. All elevations are referenced to the local datum used for the original construction of the locks and dams. The Contractor shall verify elevations and dimensions before laying out the work. The Contracting Officer shall be notified of any discrepancies prior to commencing work.

1.5 WORK AREAS AND RESTRICTIONS

1.5.1 General

The work under this contract shall be performed at the Emsworth Locks and Dams, Ohio River, Allegheny County, Pennsylvania. The Ohio River at the project is divided by Neville Island into two channels, a larger main channel and a smaller back channel. The Emsworth facility consists of two dams, one located on the main channel 6.2 river miles downstream of the Point in Pittsburgh, and another located on the back channel 6.8 river miles downstream of the point in Pittsburgh. A pair of lock chambers are located at the right bank of the main channel. Access to the locks is from a public parking area located on the right bank of the main channel.

Access to the left abutment of the main channel dam and the right abutment of the back channel dam is from access roads located on Neville Island.

The work areas, including the work platform, on the right abutment may be accessed from the temporary and permanent work area easements specified in paragraph "Access to Project Site", public roads on Neville Island, or from the river as shown on the drawings.

1.5.2 Work Areas

The work area under this contract shall be at the back channel dam right abutment. As required by Contract Clause "OPERATIONS AND STORAGE AREAS", all operations of the Contractor shall be confined to areas shown on the drawings required to accomplish the work under this contract, and as authorized and approved by the Contracting Officer. The limits of the Contractor's work areas are as shown on the Contract Drawings and are specified in paragraph "Access to Project Site". All work areas shall be coordinated with the Contracting Officer prior to commencement of work.

1.5.2.1 Surcharge Restrictions on Existing Abutment Wall

The Contractor shall be restricted to a maximum of a uniform 500 pounds per square foot surcharge load on the existing abutment wall. This surcharge load shall include all construction loading, including labor, materials, equipment, and supplies, that will be imposed on the wall from construction of the work platform, micropiles, and grouted riprap slope protection.

Detailed work plans shall be submitted per the requirements of these contract specifications that shall indicate the means, methods, and procedures of work with drawings. All work plans shall be accomplished in a manner which will prevent damage to the existing concrete and supporting

W911WN-09-B-0007 SECTION 01 11 00 Page 3 piling and ensure the complete safety of the existing abutment wall. The work plans shall be verified by detailed calculations that reflect all actual loads applied to the existing structures that include, but are not limited to, impact factor(s), self-weight of all equipment and materials, soil pressures, etc. Loads, criteria, and standards used in the development of all plans, as a minimum, shall be in accordance with nationally recognized codes (ACI, AISC, etc.). Calculations shall be signed and sealed by a Registered Professional Engineer(s) licensed within the United States.

1.5.3 Access to Project Site

1.5.3.1 Back Channel Access

Back channel access is limited from both the water and land.

The Contractor shall perform all land based work under this contract downstream of the existing bulkhead storage pit on the right abutment within the limits of the Temporary Work Area Easement, Government Fee Parcel, Permanent Channel Improvement Easement, and the Permanent Subsurface Anchor Easement. Access to the bulkhead storage pit will not be permitted under this contract. The Contractor may use these areas to stage equipment and materials for the work, subject to limitations and coordination requirements specified within this section and other sections, as well as access to the right abutment for installation of the work platform and grouted riprap slope protection. The Contractor may also further develop the riverbank within this area for access into the river.

Any proposed development of the river bank for the purpose of access shall be submitted to the Government for review and approval. Any proposed access will not block or in any other way obstruct flow through the dam gates. The development of plans for any proposed access shall be prepared under the direction of, or by a Registered Professional Engineer. Any required investigations (i.e. soil and rock mechanics, rock depth, etc.)

shall be the responsibility of the Contractor, and all costs for such investigation shall be borne by the Contractor.

The Contractor shall perform all river based work under this contract from floating barges within the Ohio River Back Channel, and shall be within the limits of the Government's navigational servitude up to the Ordinary High Water Level (OHWL) contour 703.8 and for a distance of 500 feet upstream and downstream of the axis of the back channel damand shall be within the Contractor Work Limits shown on the drawings. Upstream access to the back channel dam from the river is restricted by two low-clearance bridges located upstream of the dam. The Fleming Park Highway Bridge and the CSXT Railroad bridge have shallow clearance between low steel and normal operating pool (El. 710). The Contractor shall investigate these bridges in order to plan and design the delivery of equipment and materials to the dam site from upstream. Special low clearance floating plant and propelling units will likely be required for work from upstream of the dam. No downstream access restrictions are present.

If fill material (e.g., riprap backfill) is placed below the Ordinary High Water Level (OHWL) shown on the drawings, the fill activities must comply with the provisions of authorized Nationwide Permits (e.g., NWP 13 - Bank Stabilization or NWP 33 - Temporary Construction, Access and Dewatering) designated in Special Public Notice No. 07-26, dated September 11, 2007, and with the applicable conditions of Pennsylvania General Permit #3 (GP-3). Submit an application for GP-3 through the Resident Engineer for registration with the PaDEP. In accordance with Contract Clause "PERMITS

W911WN-09-B-0007 SECTION 01 11 00 Page 4

AND RESPONSIBILITIES", the Contractor shall be responsible to secure all necessary Federal, State, and local permits for riprap backfill installation.

The Contractor is responsible to design temporary structures that comply with the conditions of the NWPs. If fill below OHWL is proposed, the Contractor must comply with the terms of a PaDEP GP-8 (http://www.dep.

state.pa.us/dep/efacts/GeneralPermitsListing.htm). The GP-8 application will be submitted to the Resident Engineer, which will in turn be submitted to the Regulatory Branch and forwarded to the PaDEP for registration. If excavation above OHWL is proposed, the Contractor will prepare and maintain onsite, an erosion and sediment control plan in compliance with applicable state and local requirements. In accordance with Contract Clause "PERMITS AND RESPONSIBILITIES", the Contractor shall be responsible to secure all necessary permits required by Federal, State, and local laws for any development above OHWL.

1.5.4 Existing Roads and Property

1.5.4.1 General

The Contractor's traffic on roads selected for hauling material to and from the site shall interfere as little as possible with public traffic. The Contractor shall investigate the adequacy of existing roads and the allowable load limit on these roads. The Contractor shall be responsible for all damage to existing roads and property occasioned by any of his operations. When intending to transport any heavy loads on roadways, the Contractor shall investigate all weight limits for the roads he intends to use and shall secure any required bond(s) from the respective owner(s).

The Contractor shall document the existing condition of the roadways that he will be using, with the owners thereof. In the past, video recordings of the original roadway conditions have provided satisfactory documentation. Prior to beginning any construction, the Contractor shall videotape, on DVD format, all existing structures including, but not limited to, local roads, public and private property, and any other areas as directed by the Contracting Officer. The owners of such roadways and other property should be present at the time of the documentation. An unedited copy of all video recordings shall be given to the owners and the Contracting Officer within 5 days after documentation. All damage to transportation facilities, public or private property, or utilities caused by the Contractor's operations shall be repaired to the satisfaction of the Contracting Officer at no additional cost to the Government. Any damage to the roadways, caused by the Contractor's operations, shall be repaired in kind by the Contractor and at his own expense. Roads shall be kept clear of all debris generated by the Contractor's operations. Roads shall be cleaned of any spillage. Upon completion of all work requiring use of the local roads, the roadways shall be restored to their preconstruction condition by cleaning and or reconstruction of damaged drainage facilities, base courses, and pavements as necessary. Repairs shall be made in the same manner as the original construction. No separate payment will be made for maintaining and restoring the condition of the roads, and all costs in connection therewith shall be considered as incidental to performance of the work.

1.5.4.2 Hauling Permits

The Contractor shall be responsible for acquiring all necessary oversized hauling permits and general hauling permits for any equipment or debris transported via roadways, as required. No heavy hauling on public roads

W911WN-09-B-0007 SECTION 01 11 00 Page 5 http://www.dep./ will be permitted until all permits and bonds have been obtained as required. All costs associated with securing these permits shall be borne by the Contractor.

1.5.5 Laydown, Storage, and Parking Areas

Laydown and storage areas shall be confined to the Temporary Work Area Easement, Government Fee Parcel, Permanent Channel Improvement Easement, and any floating barges utilized by the Contractor for performance of work under this contract as shown on the drawings. Parking is limited at the project site and Contractor parking may not be available on Government property. The Contractor shall be responsible for obtaining all required parking areas off Government property. The Contractor shall arrange for transportation of employees from the parking area(s) to the points of access at the project site.

1.5.5.1 Temporary Work Area Easement Relocations

Existing semi-truck trailers and miscellaneous debris exist within the limits of the Temporary Work Area Easement. The Contractor shall relocate the existing semi-truck trailers from the Temporary Work Area Easement to locations on adjacent property designated by the landowner, Mr. James R.

Bisbey. The Contractor shall support the semi-truck trailers on the adjacent property to the satisfaction of Mr. Bisbey. The Contractor shall also remove, and dispose of or relocate miscellaneous debris (i.e., concrete blocks and other materials) from the Temporary Work Area Easement to locations approved by Mr. Bisbey or at a properly permitted, commercially available disposal facility for the type of materials being removed. Any damage to Mr. Bisbey's property caused by the Contractor's negligence during relocation of materials and semi-truck trailers shall be repaired by the Contractor at no expense to the Government.

The Contractor shall provide a vehicle to relocate the semi-truck trailers that is equipped with an air supply capable of pressurizing the trailer's air brakes, or shall provide a vehicle for relocating the trailers and all necessary air compressors and equipment required to unlock the air brakes on the semi-truck trailers. The semi-truck trailers are licensed and ready for road transportation. Any damage caused to the semi-truck trailers during relocation shall be the responsibility of the Contractor and repaired by the Contractor at no expense to the Government or Mr. Bisbey.

The Contractor shall coordinate all semi-truck trailer relocations with Mr.

Bisbey prior to relocation.

1.5.6 Utilities

The Contractor shall be responsible for coordination of all existing utilities with the work and for providing utilities for construction purposes. Utilities shall be coordinated in accordance with Section

01 18 00 UTILITY COORDINATIONS.

1.6 EXISTING SURVEY CONTROLS

Corps of Engineer survey controls are located on the back channel dam. The Contractor will be given this information upon request.

1.6.1 Project Alignment

All new work to be constructed under this contract shall be constructed level, plumb, and accurately from survey control points established by the

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Contractor as necessary to construct all work within the proper alignment.

The Contractor shall verify the elevations and positions of the Corps of Engineers survey controls before using them to layout the work under this contract, and shall notify the Contracting Officer of any discrepancies prior to commencing work. If any existing survey controls are disturbed during execution of the work, the Contractor shall replace the survey control as directed by the Contracting Officer at no expense to the Government.

1.7 CONTRACTOR'S FLOATING PLANT

1.7.1 General

Floating plant, and the operation of such plant, shall comply with the requirements of EM 385-1-1, Section 19. Floating plant which is not being used in the performance of the work shall be secured in a manner that does not interfere with navigation on the river. Emergency plans for removing or securing floating plant and evacuating personnel in the event of severe weather shall be prepared in accordance with EM 385-1-1, Section 19.A.03.

The Contractor shall provide personnel as necessary to adjust moorings to provide for fluctuations of pool level. A propelling unit capable of moving the floating plant must be available at all times. If the Contractor chooses to have a leased towboat or propelling unit offsite, the plant must be capable of being onsite within 4-hours notice. The written propelling unit agreement between the Contractor and the lessor documenting this requirement shall be provided to the Contracting Officer prior to mobilization of any floating plant. The agreement shall also include documentation that the propelling unit operator currently possesses a U.S. Coast Guard "Operator of Uninspected Towing Vessels" license. The Contractor shall be fully responsible for selection of floating plant which is suitable for the performance of the work under this contract.

Contractor's floating plant shall operate only within the areas of work shown on the drawings, unless such areas are modified with the approval of the Contracting Officer and Lockmaster.

1.7.2 Equipment Requirements

The Contractor shall select floating plant and towboats and propelling units of a size and capacity suitable for performance of the work under this contract. Towboats and propelling units shall have sufficient horsepower capacity to control the floating plant used, considering the size and draft of the plant, for the expected river velocities and wind conditions. The Contractor shall submit a plan of all floating plant, floating plant based equipment (i.e. cranes, derricks), temporary operating systems (i.e. generators, compressors, welding machines, etc.), and other appurtenant features which he will have present during the contract period. The Contractor shall use sketches, diagrams, and narratives to indicate location of all floating plant equipment. The Contractor shall use manufacturer catalog information or other suitable data to describe the specific equipment to be used. The Contractor shall also indicate the methods and procedures that will be used to deliver materials, supplies and equipment via floating plant.

1.7.3 Signal Lights and Markers

The Contractor shall display signal lights and conduct his operations in accordance with the General Regulations of the Coast Guard, as set forth in Commandant, U.S. Coast Guard Instruction M16672.2, or 33 CFR 81, Appendix A (International), and 33 CFR 84 through 33 CFR 89 (inland) as applicable.

W911WN-09-B-0007 SECTION 01 11 00 Page 7

The Contractor shall be required to furnish and install all buoys, lights, signs, and other safety devices as required by Coast Guard rules and regulations. All equipment and devices shall be Coast Guard approved.

1.7.4 Maintenance of Floating Plant

The Contractor shall maintain all floating plant equipment in good working condition throughout the contract period.

1.7.5 Mooring of Floating Plant

The Contractor shall be responsible for all mooring of floating plant.

When not in use, the Contractor's floating plant shall be securely moored.

The Contractor shall also be solely responsible for providing personnel in order to adjust mooring lines as required by the prevailing river conditions.

In addition to the use of spuds for securing floating plant, the Contractor may construct temporary mooring facilities such as dolphins, pile clusters, and dead man anchorages within the back channel for mooring. Any such temporary mooring structures shall be placed no closer than 1,000 feet from the downstream face of the dam, and shall not adversely obstruct the flow.

Any temporary moorings constructed by the Contractor shall be completely removed at the completion of the project. Development of plans for any proposed mooring shall be prepared under the direction of, or directly by, a Registered Professional Engineer. Any required investigations (i.e. soil and rock mechanics, rock depth, etc.) shall be the responsibility of the Contractor, and all costs for such investigation shall be borne by the Contractor.

Design loads, "hydraulic" design factors, criteria, and standards used for development of temporary mooring structures, as a minimum, shall be in accordance with the following Corps of Engineers hydraulic structure design standards:

EM 1110-2-1902 Slope Stability, 31 Oct 03

EM 1110-2-2104 Strength Design for Reinforced - Concrete Hydraulic Structures, 20 Aug 03

EM 1110-2-2105 Design of Hydraulic Steel Structures, Change 1, 31 May 94

EM 1110-2-2502 Retaining and Flood Walls, 29 Sep 89

EM 1110-2-2503 Design of Sheet Pile Cellular Structures Cofferdams & Retaining Structures, 29 Sep 89

EM 1110-2-2504 Design of Sheet Pile Walls, 31 Mar 94

A copy of these "Engineering Manuals" may be obtained at the following website: http://www.usace.army.mil/inet/usace-docs/.

Additional Corps of Engineers design standards may be applicable dependent on the nature of the mooring structure proposed.

Any proposed temporary mooring facilities developed below the Ordinary High Water Level (OHWL) shown on the drawings shall comply with the conditions

W911WN-09-B-0007 SECTION 01 11 00 Page 8 http://www.usace.army.mil/inet/usace-docs/.

of the Corps of Engineers NWP 33 - Temporary Construction, Access and Dewatering, which is found in Public Notice No. 07-26, dated September 11, 2007 (http://www.lrp.usace.army.mil/or/or-f/07-26.pdf). Typical temporary mooring cells, dolphins, or H-piles placed below OHWL are within the scope of NWP 33. The Contractor is responsible to design temporary mooring facilities that comply with the conditions of the NWP.

Any temporary moorings constructed by the Contractor shall be completely removed at the completion of the project.

The Contractor will be permitted to moor floating plant to the downstream face of the dam when not in use, and if approved by the Contracting Officer. However, this plant must be completely removed and secured to temporary moorings by the time the upstream river gauge reaches 22.0, or within two hours notice from the Contracting Officer or Lockmaster.

1.7.6 Suspension of River Traffic and Construction

1.7.6.1 Withdrawal of Equipment and Floating Plant

Navigational restrictions require that all river traffic through Emsworth Locks and Dams be suspended when the river level reaches El. 716.0 (Upper gauge = 22 feet). Therefore, all work performed from floating plant at the project site shall be suspended when the river level is at this stage.

Work from areas not affected by this river stage may continue. The Contractor's floating plant, or any subcontractor's floating plant, shall be moored away from the dam by the time the river level reaches El. 716.0, and work is suspended. It shall also be the Contractor's responsibility to withdraw any land-based equipment that would be subject to damage by rising river stages at this level from such affected areas, before they are subject to damage. The Contractor shall monitor the prevailing river conditions at the project site, referring to the upstream project river gauge, river forecasts issued by the National Weather Services, and the Corps of Engineers River Forecast System, and shall determine when to withdraw equipment and floating plant. The withdrawal of equipment and floating plant shall ultimately be the Contractor's decision and will not be directed by the Government. It shall be the Contractor's responsibility to determine the time necessary to make a complete and safe withdrawal of equipment and floating plant with due consideration given to the location of mooring area; amount of equipment; size of the floating plant; and capacity of towboats and propelling units to operate safely and efficiently at the expected river velocities. All floating plant and equipment shall remain securely moored during the period when river levels are at or above El. 716.0, and river traffic and work is suspended. The Contractor shall also be responsible for providing personnel during the suspension to adjust mooring lines as required by the prevailing river conditions. The Contractor shall resume all work, and remobilize equipment and floating plant from its moored location when the river level reaches El. 716.0 with a falling condition forecasted.

1.7.6.2 Plan of Action, Withdrawal of Equipment and Floating Plant

The Contractor shall prepare and submit a Plan of Action for withdrawal of equipment and floating plant. The plan shall detail the procedures for withdrawal of equipment and floating plant in the event that suspension of river traffic and work is imminent. The Plan of Action shall include, but is not limited to, the following information:

a. Procedure(s) For Monitoring River Conditions Including River

W911WN-09-B-0007 SECTION 01 11 00 Page 9 http://www.lrp.usace.army.mil/or/or-f/07-26.pdf).

Levels, Discharges, And Velocities.

b. Mooring Location(s).

c. Monument River Condition Which Affect Notification Actions.

d. Monument River Conditions Which Affect Withdraw.

e. Sequence and Duration of Withdraw.

f. Procedures for Care of Moored Floating Plant and Equipment.

g. Monument River Conditions Affecting Remobilization.

h. Sequence and Duration of Remobilization.

The Plan of Action shall include a listing of key Contractor's Points of Contact and telephone numbers. The Plan of Action shall include the withdrawal of any subcontractor's equipment and floating plant. The Contractor's Plan of Action shall be consistent with the applicable requirements for Emergency Planning as described in EM 385-1-1. All key Contractor personnel, including superintendents, foremen, safety officers, and QC personnel, shall be given a copy of the Plan of Action and shall be thoroughly familiar with their duties under this plan. Subcontractors shall also be thoroughly familiar with their responsibilities and duties under the plan.

1.7.6.3 Compensation and Extension of Contract Period, Suspension of Work

The withdrawal of floating plant and equipment is considered a condition of work dictated by the nature of the worksite. The Contractor's withdrawal of equipment and floating plant shall not be construed as a direction on the part of the Government or Contracting Officer, under the provisions of Contract Clause "SUSPENSION OF WORK", which shall not apply to this work condition. No compensation will be made to the Contractor for withdrawal of this equipment nor will any delay costs be made for the period during which work cannot be accomplished. In accordance with Contract Clause "DEFAULT (FIXED PRICE CONSTRUCTION)", the contract period will be extended equitably for the withdrawal of floating plant and equipment.

1.7.7 Operation of Small Water Craft

The Contractor shall develop, prepare, and submit a small water craft operations plan addressing the operation of small water craft within the "Restricted Area" of the Emsworth Locks and Dams. The plan shall address safe operations of small water craft and shall include maximum river stages, maximum river flows, horsepower requirements, training, and any other items necessary to address all the hazards associated with navigating in the "Restricted Area" of the dams.

1.7.8 Other Contractor Floating Plants

Other Contractors under separate contract may require the use of floating plants adjacent to the work to be performed under this contract. The Contractor shall provide access to all other floating plants necessary to complete the work under separate contract and shall coordinate the locations of the floating plants with respect to the work to be performed.

1.8 RESTRICTIONS TO RIVER TRAFFIC FOR CONSTRUCTION

The Contractor shall not interfere with river traffic through the lock chambers of the main channel locks or their approaches during performance of work under this contract. The Contractor will not be given any privileges for priority lockage under the conditions of this contract, unless specifically authorized by the Contracting Officer, for transportation of barges, water crafts, materials, personnel, or supplies

W911WN-09-B-0007 SECTION 01 11 00 Page 10 from one side of the back channel dam to the other by traveling around Neville Island through the main channel locks.

1.9 PROTECTION AND MAINTENANCE OF ROAD TRAFFIC

During construction, the Contractor shall maintain and protect traffic on all affected roads during the construction period, except as otherwise specifically directed by the Contracting Officer. The traveling public shall be protected from damage to person and property. The Contractor shall submit his proposed traffic control plan for approval.

1.10 DAMAGE TO WORK

The responsibility for damage to any part of the permanent work shall be as set forth in Contract Clause "PERMITS AND RESPONSIBILITIES". However, if, in the judgment of the Contracting Officer, any part of the permanent work performed by the Contractor is damaged by flood or earthquake, which damage is not due to the failure of the Contractor to take reasonable precautions or to exercise sound engineering and construction practices in the conduct of the work, the Contractor shall make the repairs as ordered by the Contracting Officer and full compensation for such repairs will be made at the applicable contract unit or lump sum prices as fixed and established in the contract. If, in the opinion of the Contracting Officer, there are no contract unit or lump sum prices applicable to any part of such work, an equitable adjustment pursuant to the Contract Clause "CHANGES", will be made as full compensation for the repairs of that part of the permanent work for which there are no applicable contract unit or lump sum prices.

Except as herein provided, damage to all work (including temporary construction), utilities, materials, equipment, and plant shall be repaired to the satisfaction of the Contracting Officer at the Contractor's expense, regardless of the cause of such damage.

1.11 PROTECTION OF UTILITIES

Utilities shall be protected as specified in Section 01 18 00 UTILITY

COORDINATIONS.

1.12 COORDINATION AND MANAGEMENT OF BULKHEADS AND LIFT GATES

Coordination and management of the existing aluminum bulkheads will not be required for the performance of work under this contract. The Contractor will not be permitted to use the bulkheads, and only the Government will use them in the case of an emergency. Since the gates at the back channel dam are new, they are anticipated to be utilized for dam closures. During performance of work under this contract, only one gate (the gate adjacent to the existing abutment wall) will be permitted to be closed at any time.

The Contractor shall coordinate this gate closure with the gate closures being performed at the main channel dam for completion of the main channel dam rehabilitation construction. Closure of the gate shall be in accordance with paragraph "Operation of Dam Gates During Contract Work".

1.13 OPERATION OF GOVERNMENT FACILITY

The Emsworth Locks and Dams facility shall remain in operation at all times. The Contractor shall perform his work in a manner which will not interfere with the operation of the facilities and the duties of Government personnel. Particular care shall be taken during all operations under this contract to prevent damage to any operating equipment or facilities at the project. The Contractor shall take all necessary precautions to ensure the

W911WN-09-B-0007 SECTION 01 11 00 Page 11 safety of the workers in accordance with the applicable provisions of EM 385-1-1. Contractor operations shall be performed in such a manner to ensure that project personnel, navigation industry personnel, and the public are protected at all times.

1.13.1 Emsworth Locks and Dams, Hours of Operation

Emsworth Locks and Dams operates 24 hours per day.

1.13.2 Contractor's Work Hours

Contractor's work hours shall be restricted to 7:30 A.M. to 6:00 P.M., Monday through Friday, or as otherwise approved by the Contracting Officer.

The Contractor shall coordinate with the Contracting Officer to make sure Government personnel are present during major features of work.

1.13.3 Other Active Contract Work

Other active contract work will be or may be underway at the Emsworth Locks and Dams during performance of the work under this contract as specified in the following subparagraphs. The Contractor shall be required to coordinate and provide access to the work areas at the back channel dam to other Contractors and shall not interfere with construction performed under these contracts. The Contractor shall be aware of all other contract work being constructed at the back channel and main channel dams during the construction period. The work under separate effort may continue through the completion of the work under this contract.

1.13.3.1 Main Channel Dam Rehabilitation

Efforts are underway at the main channel dam for rehabilitation construction. This rehabilitation construction consists of the following main channel dam work: site preparation work, including fence modifications; pier modifications, including concrete removal, concrete repairs, installation of embedded features, demolition of existing machinery houses, and construction of new machinery houses; lift gate modifications, including demolition of existing lift gates, installation of new lift gates, and installation of new lift gate operating machinery;

miscellaneous electrical modifications, including power, lighting, and HVAC systems, control and instrumentation systems, and new main channel dam electrical service; existing abutment wall modifications, including concrete removal, concrete repairs, construction of a new esplanade concrete slab, and the installation of rock anchors for stability; dredging operations downstream of the dam apron, including removal of existing obstructions, and staging and reinstallation of derrick stone and graded stone; grout bag scour protection downstream of the main channel dam, including grout bag installation, apron tie-in element installation, bedding material and geogrid reinforcement installation on the prepared river bottom, and grout bag flank protection during various stages of construction; existing left abutment wall modifications, including the installation of an abutment combination wall consisting of the installation of pipe piles, sheet piles, and end piles, drilling of rock sockets, placement of concrete in and around the pipe piles, and installation of riprap backfill on the landward side of the constructed combination wall;

installation a pre-engineered metal control building with foundation; and installation of a main channel emergency generator set and access platform.

This main channel rehabilitation construction consists of the following back channel dam work: installation of access platform around the existing

W911WN-09-B-0007 SECTION 01 11 00 Page 12 back channel dam emergency generator; and installation of new bellow covers on the machinery houses.

Gate closures at the back channel dam will need to be coordinated with the main channel dam Contractor and the Government. Work under the main channel dam rehabilitation will restrict permissible gate operations and closure timings and durations during performance of the work.

1.13.3.2 Main Channel and Back Channel Service Bridge Repairs

Efforts are expected to begin at the main channel and back channel dams for service bridge repairs before and after the start of construction of the back channel dam right abutment stabilization project. These service bridge repairs consists the following work at both the main and back channel dams: replacement of the service bridge bearings, including removal of existing bearings and installation of new bridge bearings; replacement of walkways, including removal of existing service bridge walkway platforms and the installation of new walkways to permit wider access on the service bridge; electrical modifications, including removal and reinstallation of the service bridge crane electrical railing; replacement of the service bridge crane rails, including removal of existing rails and installation of new rails; miscellaneous concrete repairs; repainting of the service bridges, including removal of the existing lead-based paint system and installation of a new paint system; and the replacement of the bulkhead hoist monorail beams, including removal of existing beams, installation of new monorail beams, and installation of new bulkhead hoist conductor system.

Main channel service bridge repairs may not be performed until after completion of the main channel dam rehabilitation project. At this time, it is not known when the back channel service bridge repairs may be performed.

The Contractor shall be made aware that the service bridge crane will be out-of-service for a short period of time, during which replacement of the crane and crane rails will be performed.

1.13.3.3 Back Channel Dam Left Abutment Stabilization

Efforts are expected to begin on the back channel dam left abutment stabilization project construction of the right abutment stabilization has been completed. Left abutment stabilization includes similar construction, with some modifications, as the right abutment stabilization, and consists of the following: obtaining subgrade railway easements for installation of the rock anchors; abutment wall modifications, including concrete repairs, including removal of existing concrete, installation of dowels and reinforcement, installation of new concrete, and installation of rock anchors; demolition of the existing guardrail and replacement with new steel handrailing on top of the abutment wall; installation of a work platform, including excavation and installation of aggregate base course and grouted riprap slope protection; contaminated material excavation and handling; installation of micropiles, including drilling holes in concrete, soil, and rock, pregrouting of holes in the rock section, watertightness testing, installation of the micropiles, and abandonment of holes for the micropiles; cleaning out existing weep holes in the abutment wall and drilling of new weep holes; installation of an abutment combination wall, including installation of pipe piles, sheet piles, and end piles, drilling of rock sockets, placement of concrete in and around the pipe piles, and installation of riprap backfill on the landward side of the constructed combination wall; and procurement of steel materials for the abutment

W911WN-09-B-0007 SECTION 01 11 00 Page 13 combination wall.

At this time, it is anticipated that the back channel dam right abutment stabilization project will be completed prior to beginning construction of the back channel dam left abutment stabilization project. If work begins on the left abutment stabilization project before completion of construction of the right abutment stabilization, the Contractors will be required to coordinate gate closures to perform the work. Only one gate will be closed at any time to complete the work of both contracts.

1.13.4 Coordination with Dam Operations

The Contractor shall perform all work in a manner that will not interfere with the duties of the lock and dam personnel. Particular care shall be taken during all operations under this contract to prevent damage to any operating equipment or facilities at the project. The Contractor shall continuously maintain safe access to all areas of the back channel dam for operating personnel, during every phase of the work, unless otherwise directed by the Contracting Officer.

1.13.5 Government Service Crane and Bulkhead Hoist

The Contractor will not be permitted to use the Government's service crane or bulkhead hoist for any purposes under this contract. The Contractor will provide all necessary cranes for lifting equipment, materials, and supplies.

1.13.6 Contractor Coordination and Scheduling

In accordance with Section 01 32 01.00 10 PROJECT SCHEDULE, the Contractor shall submit a project schedule for his work to the Contracting Officer.

All necessary adjustments in the Contractor's work schedule shall be coordinated and approved by the Contracting Officer.

1.14 SAFETY AND HEALTH REQUIREMENTS

Safety and Health Requirements shall conform to Section 01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS, EM 385-1-1, and the requirements of the Occupational Safety and Health Administration. Where provisions of EM 385-1-1 vary with OSHA requirements, the more stringent requirements shall be applied.

1.15 POOL LEVELS

The normal pool level upstream of the Emsworth Dams is El. 710.6 (gage reading = 16.6 feet). The normal pool level downstream of the dams is El.

692.0 (gage reading = 12.0 feet). Ordinary High Water Level (OHWL) at the back channel dam is El. 703.8.

1.16 INSPECTIONS AND ACCEPTANCE OF WORK

1.16.1 General

Not withstanding other provisions of this contract, all materials and work to be performed under this contract shall be inspected and accepted by the Contracting Officer or his authorized representative(s). Inspections and acceptance will be performed on phases of the work, before the next definable sequential phase of work commences, or may be performed at the completion of all of the work, as determined appropriate by the Contracting

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Officer. The Contracting Officer or authorized representatives of the Contracting Officer shall be the individual(s) solely authorized to reject materials, disapprove or approve any work in progress, or order or direct any revision or change to the plans and specifications as presently shown and stated.

1.16.2 Access to Work

The Contractor shall provide access to all areas of work for inspection by the Government. The Contractor shall maintain suitable land based access to allow Government inspectors access to the areas of work. The Contractor shall also provide access for Government by boat, transporting Government inspectors to the various areas of work. The Contractor shall submit an access plan for Government lock operating personnel and inspectors to the Contracting Officer.

PART 2 PRODUCTS

2.1 PRODUCTS AND PARTS OF STANDARD MANUFACTURE

All materials, supplies and articles furnished so as to be incorporated into the work under this contract shall be new and shall, whenever so specified and otherwise practicable, be standard products of recognized reputable manufacturers. Standard products of manufacturers other than those specified will be accepted when it is proven to the satisfaction of the Contracting Officer, in accordance with the Contract Clause "MATERIAL AND WORKMANSHIP", that they are equal in performance, strength, durability, usefulness, and convenience for the purpose intended. Any changes required in the details and dimensions shown on the drawings as a result of the substitution of standard products, other than those provided for, shall be properly made as approved by the Contracting Officer, and at the expense of the Contractor. All products specified by "similar or equal to" a particular brand name are for descriptive purposes only and are not to imply that the product is available from only that source. Each major piece of equipment furnished under the contract shall be provided with a substantial nameplate securely fastened or cast-in-place and clearly inscribed with the manufacturer's name, year of manufacture, principal rating data and other pertinent data.

PART 3 EXECUTION

3.1 SEQUENCE AND CONDITIONS OF WORK

3.1.1 Sequence of Work

The work shall be prosecuted in such order of precedence as best suits the Contractor's construction schedule subject to the following conditions and restrictions. A General Construction Sequence for work to be performed under this contract has been provided on the contract drawings and may be used by the Contractor as a generalized construction sequence. The Contractor shall perform the work in a diligent, effective manner, and shall schedule his operations in such a manner that the work is completed on time. In accordance with Special Contract Clause "LIQUIDATED DAMAGES -- CONSTRUCTION", the Contractor will be assessed the daily monetary damages for failure to complete the work in the allotted contract period.

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3.1.2 Conditions of Work

3.1.2.1 Operation of Dam Gates During Contract Work

All back channel dam gates, with the exception of one gate closure at any given time, will be permitted during the contract period. This single gate closure is permitted on the gate adjacent to the existing abutment wall to facilitate construction downstream of the back channel dam. Closure of this gate must be coordinated with the main channel rehabilitation work and may not be available all the time during performance of work under this contract.

The gate closure at the back channel dam shall be coordinated with the gate closures at the main channel dam during performance of the main channel dam rehabilitation construction.