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Braddock and Charleroi L/D's, Painting Tainter Gates

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 30 00.10

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 CONTRACTOR RESPONSIBILITIES

1.3.1 General

1.3.2 Licenses and Permits

1.3.3 Movement of Bulkhead Units at Braddock Locks and Dam

1.4 DRAWINGS

1.4.1 Reference Drawings

1.5 WORK AREAS AND RESTRICTIONS

1.5.1 Work Areas

1.5.2 Hauling Materials and Equipment

1.5.3 Other Contractors

1.5.4 Storage Areas

1.5.5 Utilities

1.5.6 Loading and Unloading

1.5.7 Access to the Site

1.6 FLOATING PLANT

1.7 PROJECT FACILITIES

1.7.1 Bulkhead

1.7.2 Operation of Dam Gates

1.7.3 Positioning Bulkhead Units, Charleroi Locks and Dam

1.7.4 Bulkhead Hoist and Auxiliary Crane, Charleroi Locks and Dam

1.7.5 Service Bridge

1.7.6 Dam Piers

1.8 EMERGENCY USE OF BULKHEADS OR OPERATION OF GATES

1.9 SCHEDULING AND SEQUENCE OF WORK

1.9.1 General

1.9.2 Braddock Locks and Dam

1.9.3 Charleroi Locks and Dam

1.10 DAM GATE OPERATING SCHEDULE

1.11 INSTALLATION OF BULKHEAD UNITS, BRADDOCK LOCKS AND DAM

1.11.1 General

1.11.2 Movement of Bulkhead Units

1.12 POOL LEVELS

1.12.1 Hydrographs

1.13 DAMAGE TO WORK

1.14 INSPECTIONS AND ACCEPTANCE OF WORK

PART 2 PRODUCTS

2.1 PRODUCTS AND PARTS OF STANDARD MANUFACTURE

PART 3 EXECUTION

SECTION 01 30 00.10 Page 1 W911WN-09-B-0006 Revised by Amendment No. 3

3.1 TESTING

3.2 IDENTIFICATION OF EMPLOYEES

3.3 PROTECTION OF MATERIAL AND WORK

3.4 PROTECTION OF UTILITIES

3.5 PROTECTION OF HOISTING CHAINS AND MACHINERY

3.5.1 Hoisting Chains

3.5.2 Lift Cylinders

3.5.3 Motors and Gears

3.5.4 Machinery Housings and Pier Buildings

3.5.5 Concrete Surfaces

3.5.6 Inspection

3.5.7 Cleanup

3.6 SCAFFOLDING

3.7 REMOVAL OF DEBRIS

3.8 OPERATION OF PROJECT FACILITIES

3.9 SIGNAL LIGHTS

-- End of Section Table of Contents --

SECTION 01 30 00.10 Page 2

SECTION 01 30 00.10

GENERAL REQUIREMENTS

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 in the text by basic designation only.

U.S. ARMY CORPS OF ENGINEERS (USACE)

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

1.2 SUBMITTALS

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

submittals not having a "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. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Propelling Unit Agreement; G, RE

The written agreement between the Contractor and the lessor documenting the requirement for required propelling unit to be on site within the specified time limit shall be provided to the Contracting Officer prior to issuance of the Notice to Proceed.

Protection Plan; G, RE

The Contractor's proposed protection methods shall be submitted for approval prior to commencing work on the gates. The plan shall include a description of materials, installation procedures, and inspection and repair methods.

Scaffolding Plan; G, RE

The Contractor shall submit for review by the Contracting Officer a clear and concise description of the proposed method of scaffolding to accomplish the cleaning and painting operations.

Approval of the proposed method of scaffolding will not relieve the Contractor of responsibility for the safety and adequacy of scaffolding and safety equipment.

Floating Plant Emergency Plan; G, RE

The Contractor's proposed plan for adjusting moorings on floating plant and removing floating plant from the dam in the event of an emergency shall submit for approval prior to moving any floating plant on site.

SECTION 01 30 00.10 Page 3

SD-02 Shop Drawings

Plant Layout Drawings; G, RE

Drawings showing the layout of the plant, including floating plant, the Contractor proposes to use on the work shall be submitted for review by the Contracting Officer. The drawings shall show the location of principal components of the plant;

storage areas which the Contractor proposes at the site of the work and elsewhere; and placement of any lines and hoses on the structure.

1.3 CONTRACTOR RESPONSIBILITIES

1.3.1 General

Responsibilities of the Contractor include, but shall not be limited to, all planning, programming, administration, coordination, and management to ensure that all work is performed in accordance with all laws, regulations, codes or directives. The Contractor shall be responsible for ensuring that the work performed meets or exceeds the requirements of the contract. The Contractor shall perform all related Contractor administrative services necessary to perform the work, such as quality control, contractor financial control, and maintenance of accurate and complete records and files. The Contractor shall also be responsible for establishing and executing programs required to ensure that all work is performed in strict accordance with all health, safety and environmental laws, regulations, codes and directives, to protect the general public, as well as Contractor and Government employees.

1.3.2 Licenses and Permits

The Contractor shall be responsible for complying with all state or local contractor licensing or registration laws and permit requirements. The Contractor shall be responsible for furnishing qualified personnel for work which requires specialized registration or training.

1.3.3 Movement of Bulkhead Units at Braddock Locks and Dam

The bulkhead units at Braddock Locks and Dam must be placed by floating plant. The Government will remove the necessary bulkhead units from the storage area at the project and relocate them to a temporary storage location closer to the Upper Guide Wall and return them to storage upon completion of the painting work at Braddock Locks and Dam. The Contractor will be responsible for moving the bulkhead units from the temporary storage area to the first gate bay, moving them from one gate bay to the next, and returning them to the temporary storage area upon completion of the work. See also paragraph INSTALLATION OF BULKHEAD UNITS, BRADDOCK

LOCKS AND DAM.

1.4 DRAWINGS

1.4.1 Reference Drawings

Reference drawings are provided for the Contractor's information to show existing construction features and conditions to the best knowledge of the Government. Most of the reference drawings were taken from contracts for other work at the projects. This contract does not include any work

SECTION 01 30 00.10 Page 4 identified on the reference drawings, and any such work identified on the reference drawings shall be considered as NOT IN THIS CONTRACT.

Designation of work areas, laydown and storage areas, and similar notations also do not apply to the work under this contract, except as approved or directed by the Contracting Officer.

The Government cannot guarantee the accuracy of the dimensions, elevations, and features shown on reference drawings or on 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 structure. The reference drawings show the general construction of the gates and other items which are to be painted. There are three movable-crest tainter gates, two non-overflow crest gates, and two bulkhead units at Charleroi Locks and Dam and four non-overflow crest gates at Braddock Locks and Dam.

The following reference drawings are presented to show representative details of construction and do not represent the work to be performed under this contract.

Charleroi Locks and Dam

Drawing Number Title

037-LCH-3/6 Project Location, Vicinity Map, General Plan 037-LCH-4/63 Existing Project Features and Allowable Construction Loads - Plan 037-L4-4/11 Plan, Elevation and Sections 037-LCH-14/13 Lower Pool Hydrographs - 1984-1986 037-LCH-14/14 Lower Pool Hydrographs - 1987-1990 037-LCH-14/15 Lower Pool Hydrographs - 1991-1994 037-LCH-14/16 Lower Pool Hydrographs - 1995-1998 037-LCH-14/17 Lower Pool Stage-Duration & Stage-Elevation 037-LCH-14/18 Upper Pool Hydrographs - 1984-1986 037-LCH-14/19 Upper Pool Hydrographs - 1987-1990 037-LCH-14/20 Upper Pool Hydrographs - 1991-1994 037-LCH-14/21 Upper Pool Hydrographs - 1995-1998 037-LCH-14/22 Upper Pool Stage-Duration & Stage-Elevation 037-L4-40/1.1 General Plan, Elevation and Sections 037-L4-48/2.1 Non-Overflow Crest Gate - End Frame and Skin Plate Assembly 037-L4-48/3.1 Non-Overflow Crest Gate - Girder Assembly and Bracing 037-L4-48/4.1 Non-Overflow Crest Gate - Chain Anchor Assembly and Details 037-L4-48/10.1 Moveable-Crest Tainter Gate - Dimensional Data and Typical Sections 037-L4-48/11.1 Moveable-Crest Tainter Gate - Bottom Unit - Skin Plate Development 037-L4-48/12.1 Moveable-Crest Tainter Gate - Bottom Unit - End Frame and Details 037-L4-48/13.2 Moveable-Crest Tainter Gate - Bottom Unit - End Frame and Chain Anchor Details 037-L4-48/14.1 Moveable-Crest Tainter Gate - Bottom Unit - Web Plan & Details 037-L4-48/15.1 Moveable-Crest Tainter Gate - Top Unit 037-L4-53/1.1 Service Bridge - Plan Elevation and Sections 037-L4-55/6.1 Tainter Gate Operating Machinery - Lifting And End Bar Details 037-L4-56/9.1 Electrical System - Dam - Gate Heater Details

SECTION 01 30 00.10 Page 5

Charleroi Locks and Dam

Drawing Number Title 037-L4-58/1.1 Upstream Emergency Bulkheads - Truss T-1 & T-2, Downstream Elevation, Sections and Details 037-L4-58/2.1 Upstream Emergency Bulkheads - Trusses T-3, Skin Plate Elevation, Sections and Details 037-L4-58/3.1 Upstream Emergency Bulkheads - End and Seal Details 037-L4-58/4.1 Upstream Emergency Bulkheads - Miscellaneous Details

Braddock Locks and Dam

Drawing Number Title

G-1003 Project Location and Vicinity Map G-1004 Project Site Plan - General 037-LBR-40/1 General Dam Configuration - Plan and Elevation 037-LBR-48/1 Tainter Gates - General Arrangement - Elevation and Sections 037-LBR-48/4 110' x 21' Tainter Gates, Side Frame Details 037-LBR-48/5 110' x 21' Tainter Gates, Top Girder and Rib Details 037-LBR-48/6 110' x 21' Tainter Gates, Downstream Elevation, Sections and Details 037-LBR-48/7 110' x 21' Tainter Gates, Trunnion Hub Details 037-LBR-48/14 Tainter Gates, Access and Ladder Details 037-L4-48/15 110' x 11.7' Tainter Gate, Geometry 037-LBR-48/16 110' x 11.7' Tainter Gates, Side Frame Details 037-LBR-48/17 110' x 11.7' Tainter Gates, Top Girder and Rib Details 037-LBR-48/18 110' x 11.7' Tainter Gates, Downstream Elevation, Sections and Details 037-LBR-48/19 110' x 11.7' Tainter Gates, Trunnion Hub Details 037-LBR-55/1 Gate Hoists - General Arrangement - Elevations and Notes 037-LBR-55/9 Gate Hoists - Hydraulic Cylinder - Section 037-LBR-55/10 Gate Hoists - Hydraulic Cylinder - Rod Clevis and End View 037-LBR-58/1 Maintenance Bulkheads - Design Data 037-LBR-58/8 Maintenance Bulkheads - Pickup Frame - General Arrangement 037-LBR-58/9 Maintenance Bulkheads - Pickup Frame - General Arrangement 037-LBR-58/19 Maintenance Bulkheads - Pickup Frame - Miscellaneous Details

1.5 WORK AREAS AND RESTRICTIONS

1.5.1 Work Areas

As required by Section 00700 CONTRACT CLAUSES, paragraph OPERATIONS AND STORAGE AREAS, all operations of the Contractor shall be confined to areas as required to accomplish the work under this contract and as authorized and approved by the Contracting Officer.

1.5.2 Hauling Materials and Equipment

If the Contractor proposes to haul materials or equipment by road to the work site, such hauling shall be in accordance with all permits, bonds and

SECTION 01 30 00.10 Page 6 other requirements of the state highway department and local authorities as applicable. No heavy hauling on public roads will be permitted until all permits and bonds have been obtained as required. The Contractor shall be responsible for investigating the load limits for local roads. 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. Dirt, mud, debris and other materials which are deposited on the highways and roads shall be removed, as necessary or as determined by the Contracting Officer, to prevent creation of a dust nuisance or safety hazard. 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.

1.5.3 Other Contractors

The Contractor is alerted to the fact that other contractors may be employed by the Government at the site in connection with construction of new Charleroi Locks at the site. The following contracts are currently anticipated:

a. Charleroi Locks and Dam, River Wall. This existing contract is anticipated to be completed in December 2010. The work consists of construction of the new River Wall upstream and downstream of the existing stub wall (Pier No. 1) at the dam. This contract utilizes the Government-furnished concrete batch plant at the left abutment and conveyor system mounted on the upstream side of the dam piers. No laydown or storage areas will be available at the project until this contract is completed and the contractor vacates the site. The work under this contract shall not interfere with operation of the concrete batch plant or concrete conveyor system, or with the work at the new River Wall. This work also requires that operation of Gates Nos. 1 and 2 be restricted to minimize flows adjacent to the new River Wall.

b. Charleroi Locks and Dam, Temporary Dam Electrical System.

Construction under this contract is anticipated to commence in late summer 2009. The work under this contract consists of updating the electrical distribution system, lighting and controls on the dam,

c. Charleroi Locks and Dam, Upper and Lower Guard Walls. This future contract will be awarded in the near future. Work under this contract may included construction of new Guard Walls upstream and downstream of the new River wall.

d. Braddock Locks and Dam, Installation of Tow Haulage System and Raising Guide Walls. Construction under this contract is anticipated to commence in late summer or fall 2009. The work under this contract consists of installation of new tow haulage equipment on the Land Wall and Upper and Lower Guide Walls and raising the the concrete surface of the Upper and Lower Guide Walls.

1.5.4 Storage Areas

Because of ongoing and pending construction contracts at the sites, no area at either project will be made available for storage of equipment and

SECTION 01 30 00.10 Page 7 materials. Storage will not be permitted on the service bridge or bulkheads. All materials and equipment must be stored on the Contractor's floating plant. Parking areas will be provided at the esplanade or adjacent areas at both projects. Since these parking areas may also be used by other contractors, the use of the parking areas shall be coordinated with the Contracting Officer.

1.5.5 Utilities

The Government will not make any utilities or services available to the Contractor; and the Contractor shall be responsible for furnishing all utilities and services required for performance of the work under this contract.

1.5.6 Loading and Unloading

The Contractor will be permitted to use the Upper and Lower Guide Wall areas (upstream and downstream of the lock chamber) at Charleroi Locks and Dam and at Braddock Locks and Dam to load and unload materials from the floating plant for up to 2 hours each day. The lock chamber shall be open to traffic at all other times unless approved by the Contracting Officer.

River traffic shall have precedence over the Contractor for use of the lock chamber. The Contractor shall notify the Contracting Officer at least 24 hours prior to his proposed use of the lock area.

1.5.7 Access to the Site

Access to the site of the work at Charleroi Locks and Dam is limited to the area upstream of the dam. The area downstream of the dam is restricted by the stilling basin and submerged endwall. The the area between the stub wall (Pier No. 1) and the existing River Wall, the area upstream of Gate Bay 1 beyond the stub wall, and the abutment area will be used by other contractors. Access to the site of the work at Braddock Locks and dam is limited to the areas immediately upstream and downstream of the dam. The parking areas and locks at both projects may be accessed from the project entry roads.

1.6 FLOATING PLANT

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 may be secured in an area in the vicinity of the work as directed by the Contracting Officer. An emergency plan 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. (See also paragraph EMERGENCY USE OF BULKHEADS OR OPERATION OF GATES.) The Contractor shall provide personnel on a 24 hour per day basis to adjust moorings to provide for fluctuations of pool level. A propelling unit capable of moving the floating plant to a safe mooring at times of high water or required dam operations must be available at all times. The Contractor may choose to have a leased tow boat or propelling unit offsite, however, the plant must be capable of being on-site within 4 hours notice. The Propelling Unit Agreement between the Contractor and the lessor documenting this requirement shall be provided to the Contracting Officer. The agreement shall also include documentation that the propelling unit operator currently possesses a U.S. Coast Guard First Class Pilot's license.

SECTION 01 30 00.10 Page 8

1.7 PROJECT FACILITIES

1.7.1 Bulkhead

A bulkhead upstream of each dam gate to permit raising the gate above the sill to permit work on the gate. A bulkhead will not be placed downstream of the gate. The Contractor is alerted to the fact that, with the bulkhead in place, water will remain over the gate sill at normal lower pool at both sites. Only one gate at each site can be bulkheaded at a time. All work on an individual gate which requires the use of the bulkhead shall be completed and accepted by the Government before the bulkhead is moved to the next gate bay. The following is provided for the Contractor's information:

a. Charleroi Locks and Dam. Normal Upper Pool at Charleroi Locks and Dam is Elevation 743.5 and normal Lower Pool is 726.9. The bulkhead consists of two units, which when place on the sill (Elevation 724.0) will extend to Elevation 744.5. All movement of these bulkhead units will be performed by the Government using lock personnel and the dam bulkhead hoist. The Contractor shall notify the Contracting Officer 48 hours in advance of the time the bulkhead is required to be moved.

a. Braddock Locks and Dam. Normal Upper Pool at Braddock Locks and Dam is Elevation 721.7 and normal Lower Pool is 710.0. The bulkhead for Gate No. 1 consists of two units, which when placed on the sill (Elevation 714.0) will extend to Elevation 726.0. The bulkhead for Gates Nos. 2, 3, and 4 consists of four units, which when place on the sill (Elevation 704.7) will extend to Elevation 728.7. Initial installation of these bulkhead units and removal of the bulkhead units upon completion of the painting work will be performed by the Government using off-site personnel and equipment. See also paragraph

INSTALLATION OF BULKHEAD UNITS, BRADDOCK LOCKS AND DAM.

The Contractor shall be responsible for coordinating his work with the placement and removal of the bulkhead units at Charleroi Locks and Dam and for moving the bulkhead units at Braddock Locks and Dam. It may be necessary for the Government to remove the bulkhead after it has been placed (see paragraph EMERGENCY USE OF BULKHEADS OR OPERATION OF GATES).

The Contractor is cautioned that water does leak or spray around or between the bulkhead units. Such leaks shall be caulked by the Contractor in a manner approved by the Contracting Officer to prevent leakage from interfering with the cleaning, metallizing, and painting operations. The use of divers to caulk the leaks will not be permitted. All costs of caulking the leaks shall be borne by the Contractor.

1.7.2 Operation of Dam Gates

The Government will provide lock force personnel to operate the gates and position them above the gate sills to facilitate the work. Operation of the gates by anyone other than lock force personnel will not be permitted.

Two hours advance notice to the Lockmaster will be required for positioning a gate. The gates will be positioned between the hours of 8:00 A.M. and 3:30 P.M., Monday through Friday only, excluding Federal holidays.

Requests for gate operation shall be made within the same periods and at least 2 hours prior to the time the movement is required. The top unit of each movable-crest gate at Charleroi Locks and Dam will be initially positioned at an elevation at which the primary lift bar is away from the gate sufficiently to permit cleaning, metallizing and painting the lift bar and the gate surface adjacent to it. The top unit will then be positioned

SECTION 01 30 00.10 Page 9 above the bottom unit as requested by the Contractor. For the remainder of the cleaning, metallizing and painting at Charleroi Locks and Dam and all cleaning, metallizing and painting at Braddock Locks and Dam, each gate will be positioned a sufficient distance above lower pool as requested by the Contractor. The Government will reposition the gate for the Contractor once per day with a 24 hour advanced notice, Monday thru Friday.

1.7.3 Positioning Bulkhead Units, Charleroi Locks and Dam

The Government will position the bulkhead units in a dogged position in a gate bay to permit painting. The bulkhead unit will be suspended from the dogging mechanisms on the adjacent dam piers, with the bottom of the bulkhead unit at approximately Elevation 767.5. The Contractor shall notify the Contracting Officer 48 hours in advance of the time a bulkhead is required to be moved. Only one such operation will be performed per bulkhead unit; the bulkhead unit will not be moved during the progress of the work for the Contractor's convenience.

1.7.4 Bulkhead Hoist and Auxiliary Crane, Charleroi Locks and Dam

The bulkhead hoist and auxiliary crane on the service bridge will not be made available to the Contractor for the performance of the work. Cranes for handling the Contractor's equipment and scaffolding must be furnished by the Contractor and at his expense. The Government will place the bulkhead and operate the gate as specified above.

1.7.5 Service Bridge

The service bridge areas must be kept free of all obstructions in order to perform daily operations of the dam. The service bridge area cannot be made available to the Contractor for the storage of materials and equipment. Any lines or hoses must be placed in such manner that they do not interfere with the operation of the bulkhead hoist, crane or gates; and do not obstruct the walkways. The location of such lines and hoses shall be subject to the approval of the Contracting Officer.

1.7.6 Dam Piers

The elevator in the Land Wall pier at Charleroi Locks and Dam will not be made available to the Contractor for access to the service bridge. The stairwells in the piers may be used by the Contractor, however, the stairs and handrails shall be maintained in a clean and safe condition at all times. No materials, supplies or equipment shall be stored in the stairwells in the dam piers. Any materials deposited in the stairwells or on handrail in the dam piers shall be promptly removed.

1.8 EMERGENCY USE OF BULKHEADS OR OPERATION OF GATES

Should river conditions require opening gates adjacent to the gate being worked, the Contractor will be ordered to remove all protective coverings from the machinery within two hours after notice by the Contracting Officer. The Contractor's attention is directed to the fact that, should high flow conditions be anticipated that would necessitate the operation of the gate being worked on or a situation occur which would require use of the bulkhead, he will be ordered to halt cleaning or painting operations, remove all protective coverings from the hoisting chains or cylinders, and machinery, remove containment structures, remove all planking from the bulkhead, remove all scaffolding, and remove floating plant from the dam, as directed, within four hours after notice by the Contracting Officer.

SECTION 01 30 00.10 Page 10

Containment structures shall be removed to the extent necessary to prevent interference with flow through the dam or being damaged by induced air currents, however, support items which do not interfere with flow may remain in place. The Government will not be responsible for any damage to such protection measures caused by emergency use of the gates in the event they are not removed by the Contractor in a timely manner. Payment for removal and replacement of scaffolding and protective coverings to permit use of the gate being cleaned and painted, removal and replacement of floating plant associated with removal and replacement of scaffolding and protective coverings, and removal of protective coverings to permit use of the gates adjacent to the gate being cleaned and paintedwill be made as specified in Section 01 22 00.00 10 MEASUREMENT AND PAYMENT. For removal and replacement of scaffolding, floating plant and protective coverngs for work at Braddock Dam, the payment shall also include removal, storage, and reinstallation of the bulkhead units. These payments shall include all costs, including impacts and delays resulting from disturbing the Contractor's work operations, due to emergency use of the bulkhead or operating the gate being painted, or removing protective coverings and containment, as applicable. A payment will be made each time the work is directed. The time allowed for completion of work will be adjusted to include the time for the period from the Government's initial directive to stop cleaning, metallizing and painting operations until the time that the Contractor is directed to resume work. Payment for repair of damage to work which has been completed will be made in accordance with Section 00700 CONTRACT CLAUSES, paragraph Changes.

1.9 SCHEDULING AND SEQUENCE OF WORK

No painting will be permitted during the period December 1 through March 31 each year due to seasonal temperatures and water levels. Any gate on which cleaning and painting has begun shall be completed with all paint coats before work is begun on another gate. Damaged closure plates shall be repaired on the bottom units of Charleroi movable-crest tainter gates before surface metallizing is commenced on the gates. Metallizing of specified surfaces shall be performed prior to painting adjacent surfaces or the back side of metallized surfaces. The work shall be scheduled so that any gate on which work is begun can be completed before stopping work for the winter. Gates shall not be returned to service, except in emergencies as specified in paragraph "EMERGENCY USE OF BULKHEAD AND OPERATION OF GATES", until completed. When cleaning and painting operations are suspended for long periods, such as winter weather, all scaffolding and other materials shall be removed so that the bulkhead and gate can be returned to service. No separate payment will be made for such removal and replacement of protection materials. After all painting of all tainter gates has been completed, the two bulkhead units shall be cleaned and painted.

1.9.1 General

The gates at Braddock Locks and Dam shall be completed prior to commencing the work at Charleroi Locks and Dam.

1.9.2 Braddock Locks and Dam

The Contractor shall place the bulkhead units in Gate Bay 41. Gate No. 1 shall be repaired as specified in Section 05 01 50 REPAIR OF DAMAGED CLOSURE PLATES AND DAM GATE and the gate shall be cleaned and painted. The painting shall progress from Gate No. 41 to Gate No. 14. The Contractor shall remove the bulkhead units from Gate No. 14 upon completion of the

SECTION 01 30 00.10 Page 11 work.

1.9.3 Charleroi Locks and Dam

Due to construction of the new River Wall, which will be in progress during the contract period, the Contractor shall commence painting on Gate No. 1 first. The bulkhead will be place in Gate Bay No. 1 and Gate No. 2 will be restricted opening as specified in paragraph Dam Gate Operating Schedule.

Gates No. 1 and Gate No. 2 will have restricted operation until the construction work at the downstream River Wall is completed. (See paragraph Other Contracts.)

1.10 DAM GATE OPERATING SCHEDULE

The dam gate operating schedules attached at the end of this section are applicable for governing gate movements by the Government at Charleroi Locks and Dam and Braddock Locks and Dam under normal conditions (all gates available). This schedule is the basis for minimizing the effect of flow through the dams on the work at the site and maintaining customary river stages above the dams. The operating schedules will be adjusted as necessary to accommodate the closing of gates for the work under this contract. The gate operations, and consequently the painting work, must also be coordinated through the Contracting Officer with the other contracts at the site. To the maximum extent possible, river conditions permitting, the following gate closings will be made:

a. The gate being cleaned and painted will be closed and the bulkhead will be placed.

b. The gate(s) immediately adjacent to the gate being cleaned and painted will be restricted operation. The adjacent gates may be operated when necessary to maintain customary river stages above the dams.

1.11 INSTALLATION OF BULKHEAD UNITS, BRADDOCK LOCKS AND DAM

1.11.1 General

The upstream maintenance bulkhead units for Braddock Locks and Dam are stored landward of the Upper Guide Wall at the project. The Contractor shall transport the bulkhead units from the temporary storage area and install them in Gate Bay 4. The Contractor will be responsible for removing the bulkhead units from Gate Bay 4 and placing them in Gate Bay 3 and likewise for Gate Bay 2 and Gate Bay 1. The Contractor shall remove the gulkhead units from Gate Bay 1 and deliver them to the temporary storage area upon completion of the painting work. Four bulkhead units will be required for bulkheading Gate Bays 2, 3 and 4. Two bulkhead units will be required for bulkheading Gate Bay 1. The Contractor shall have floating plant capable of removing and storing the bulkhead units available within __ hours in the event the bulkhead units must be removed to permit opening of the gate. See paragraph EMERGENCY USE OF BULKHEADS OR OPERATION OF GATES. The Government will also furnish the lifting beam for handling the bulkhead units. The Contractor will be required to store the two bulkhead units not required in Gate Bay 1 until the Government removes the bulkhead units that are used in Gate Bay 1. It is anticipated that the bulkhead units will be placed on or about August 31, 2009 and will be returned to the temporary storage area before on or about July 1, 2010.

SECTION 01 30 00.10 Page 12

1.11.2 Movement of Bulkhead Units

The general construction of the bulkhead units and lifting beam are shown on the reference drawings. Each bulkhead unit weighs approximately 80,500 pounds and the lifting beam weighs approximately 24,000 pounds. The bulkhead units are set individually, with the first unit placed on the sill and the remaining units placed on the previously placed unit. Divers may be required to ensure that the latch mechanism on the lifting beam properly disengages prior to removing the lifting beam from a bulkhead unit. The Government will make personnel familiar with the use of the lifting beam for the first movement of bulkhead units only.

1.12 POOL LEVELS

The Government will not attempt to vary the pool levels for the convenience of the Contractor during the progress of the work. The Government will maintain the Upper Pool elevation at Charleroi Locks and Dam at approximately El. 743.5 (Upper Gage 9.0) to 744.1 (Upper Gage 9.6) within the limitations of normal gate operating schedules. Lower Pool elevation is dependent on flow in the river and will, in general, be as reflected on the Upper Pool to Lower Pool Relationship given on reference Drawing No.

037-LCH-14/22. The Government will maintain the Upper Pool elevation at Braddock Locks and Dam at approximately 721.7 (Upper Gate 12.0) within the limitations of normal gate operating schedules.

1.12.1 Hydrographs

The Stage-Duration and Stage-Discharge curves given on Drawing No.

037-LCH-14/22 are for Charleroi Locks and Dam lower pool. The duration and discharges for Upper Pool stages can be determined by obtaining the relevant lower pool stage from the Upper Pool to Lower Pool Relationship given on Drawing No. 037-LCH-14/22 using the Lower Pool stage from the Stage-Duration and Stage-Discharge curves.

1.13 DAMAGE TO WORK

The responsibility for damage to any part of the permanent work shall be as set forth in Section 00700 CONTRACT CLAUSES, paragraph 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. An equitable adjustment in the contract will be made pursuant to Section 00700 CONTRACT CLAUSES, paragraph CHANGES, and such adjustment shall constitute full compensation for the repairs of the permanent work. 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.

1.14 INSPECTIONS AND ACCEPTANCE OF WORK

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

SECTION 01 30 00.10 Page 13 completion of all of the work, as determined appropriate by the Contracting Officer. The Contracting Officer or his authorized representative 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.

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, whenever so specified and otherwise practicable, be standard products of recognized reputable manufacturers. Standard products of manufacturers other than those specified in the contract will be accepted when it is proven to the satisfaction of the Contracting Officer, in accordance with the Section 00700 CONTRACT CLAUSES, paragraph 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 TESTING

Where testing is specified herein to be performed by the Government, the Government will perform the testing or will have the testing performed at a commercial laboratory at the expense of the Government. Where items or additional samples from items which have been previously tested and approved at the expense of the Government are required to be retested, the Government will bear the costs of such retesting. Where retesting is required because of the failure of previously tested samples, the expenses of all such retesting shall be borne by the Contractor at no extra expense to the Government. The Contractor shall pay for all additional retesting required due to subsequent test failures. Where so required for original testing, retesting will be performed either in the Government laboratories or at such commercial laboratories as may be approved by the Contracting Officer.

3.2 IDENTIFICATION OF EMPLOYEES

The Contractor shall be responsible for furnishing an identification badge/card to each employee prior to the employee working on-site and for requiring each employee engaged on the work to display identification.

Identification shall consist of name tags with the name of the Contractor and the employee's name. Additionally, a valid state driver's license is required for positive identification.

3.3 PROTECTION OF MATERIAL AND WORK

The Contractor shall at all times protect and preserve all materials, SECTION 01 30 00.10 Page 14 supplies and equipment of every description (including property which may be Government-furnished or owned) and all work performed. A11 reasonable requests of the Contracting Officer to enclose or specially protect such property shall be complied with. If, as determined by the Contracting Officer, material, equipment, supplies and work performed are not adequately protected by the Contractor such property may be protected by the Government and the cost thereof may be charged to the Contractor or deducted from any payments due him.

3.4 PROTECTION OF UTILITIES

Notwithstanding the Section 00800 SPECIAL CONTRACT REQUIREMENTS, paragraph PROTECTION OF UTILITIES, and Section 00700 CONTRACT CLAUSES, paragraph

PROTECTION OF EXISTING VEGETATION, STRUCTURES, EQUIPMENT, UTILITIES, AND

IMPROVEMENTS, the Contractor shall locate and clearly identify all utility lines, wires, and cables within the Contractor's work area. The Contractor shall conduct his operations such that the utilities are not damaged or disturbed. Any damage to utilities caused by the Contractor's actions shall be repaired by him at no additional expense to the Government.

3.5 PROTECTION OF HOISTING CHAINS AND MACHINERY

Prior to the start of blast cleaning operations on the dam gates or bulkhead units, the Contractor shall provide protection for the hoisting chains and cylinders, motors, and gears, and machinery so that no sand, dust, or grit shall come into contact with the grease and lubricants used on these items at either project or the ceramic surface of the piston rods and rod wipers at Braddock Locks and Dam. All such protection shall be capable of being quickly removed in the event emergency operation of the bulkhead or gate is required. This protection shall be as set forth below. Polyethylene sheeting shall not be placed over floor openings or other vertical openings unless adequate protection is provided to prevent falls through the openings.

3.5.1 Hoisting Chains

The exposed portions of the hoisting chains of the gate bay in which work is being performed shall be completely enclosed in 10 mil thick polyethylene film or other suitable material, sealed in such manner that no sand, dust, or grit comes in contact with the chain.

3.5.2 Lift Cylinders

The exposed portions of the lift cylinders of the gate bay in which work is being performed shall be completely enclosed in 10 mil thick polyethylene film or other suitable material, sealed in such manner that no sand, dust, or grit comes in contact with the piston rod surface or cylinder or piston rod attachments.

3.5.3 Motors and Gears

All motors and gears contained within the machinery housings or pier buildings on the piers at each end of the gate bay in which work is being performed shall be wrapped in polyethylene film or other suitable material approved by the Contracting Officer and sealed to protect them against blast cleaning and painting operations.

SECTION 01 30 00.10 Page 15

3.5.4 Machinery Housings and Pier Buildings

All machinery housings or pier buildings at each end of the gate bay in which work is being performed shall be sealed with adhesive tape and polyethylene film or other suitable material approved by the Contracting Officer to prevent entry of blasting abrasives, dust, debris or other contaminants.

3.5.5 Concrete Surfaces

Surfaces of the dam piers shall be protected from effects of surface preparation and overspray. Any paint which is deposited on the concrete surfaces shall be removed prior to commencing work on the next gate.

Sandblasting of concrete surfaces will not be permitted for removal of paint.

3.5.6 Inspection

Prior to installation of protection on the hoisting chains, lift cylinders, and machinery, the Contractor and the Contracting Officer's representative shall inspect each hoisting chain, lift cylinder, motor, and gear to determine existing conditions. Protective coverings on the hoist chains, lift cylinders, motors, gears, and machinery housings will be inspected and must have the approval of the Contracting Officer prior to start of the blast cleaning operations. All protective coverings shall be inspected daily or more frequently when conditions require, and any damaged coverings shall be repaired or replaced. No cleaning or painting will be permitted without the protection in place. The Contractor and the Contracting Officer's representative shall inspect each hoisting chain, motor, and gear upon completion of all work on the affected gate and removal of the protection. Any damage caused by inadequate protection shall be repaired to the satisfaction of the Contracting Officer at the Contractor's expense.

3.5.7 Cleanup

Upon completion of all work for which protection is provided, the Contractor shall remove the protection, inspect the chains and machinery, and clean up as required to return the items to their original condition prior to the cleaning and painting operations.

3.6 SCAFFOLDING

The Contractor shall furnish, erect, maintain, and finally remove all necessary scaffolding required for the performance of the work under this contract. Scaffolding shall be erected and maintained in accordance with the scaffolding requirements of EM 385-1-1 and 29 CFR 1926. Necessary safety equipment and apparatus shall be provided to adequately protect all personnel employed by the Contractor against the hazards of falling and drowning and any other hazards encountered during the prosecution of the work. The scaffolding shall be adequate to permit proper cleaning and paint application and permit inspection by Government inspectors.

Scaffolding shall not be removed, except as specified below, until the surfaces have been inspected by the Contracting Officer or his authorized representative.

3.7 REMOVAL OF DEBRIS

The Contractor's attention is directed to the fact that the bottom units of the movable-crest gates and the downstream compartment of the non-overflow

SECTION 01 30 00.10 Page 16 gates may contain drift, sediment and debris, including tree limbs, empty containers and similar floatable debris. Such debris may also be deposited on framing members of the gates. In the past, debris has accumulated to a depth in excess of four feet. The Contractor shall remove all such debris from the gates and properly dispose of it off site in accordance with Section 01 57 20.00 10ENVIRONMENTAL PROTECTION, paragraph "CONTAINMENT AND

DISPOSAL OF BLASTING DEBRIS".

3.8 OPERATION OF PROJECT FACILITIES

Government facilities 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 project 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 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 and the public are protected at all times.

3.9 SIGNAL LIGHTS

The Contractor shall display signal lights and conduct his operations in accordance with the General Regulations of the Department of the Army and of the Coast Guard governing lights and day signals to be displayed by towing vessels with tows on which no signals can be displayed, vessels working on wrecks, dredges, and vessels engaged in laying cables or pipe or in submarine or bank protection operations, lights to be displayed on dredge pipe lines, and day signals to be displayed by vessels of more than 65 feet in length moored or anchored in a fairway or channel, and the passing by other vessels of floating plant working in navigable channels, 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 809 (inland) as applicable.

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