Technical Specifications.pdf

W911WN-09-B-0012

Dam Scour Repair

Lock and Dam No. 5 Allegheny River Armstrong County, Pennsylvania

Technical Specifications

June 2009

ALLEGHENY RIVER L/D 5, DAM SCOUR REPAIR

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 22 00.00 10 MEASUREMENT AND PAYMENT

01 30 00.10 GENERAL REQUIREMENTS

01 32 17 CONSTRUCTION PROGRESS SCHEDULE

01 32 23 SURVEY AND ALIGNMENT CONTROL

01 33 00 SUBMITTAL PROCEDURES

01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 01.10 USACE QUALITY CONTROL SYSTEM (QCS)

01 45 01 USACE QUALITY CONTROL

01 50 10 PROJECT AND SAFETY SIGNS

01 57 20.00 10 ENVIRONMENTAL PROTECTION

DIVISION 31 - EARTHWORK

31 35 19.11 STONE SCOUR PROTECTION

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

35 20 23.10 DREDGING

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PROJECT TABLE OF CONTENTS Page 1

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL INFORMATION

1.1 SCOPE OF WORK

1.1.1 Scour Protection

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION (NOT USED)

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SECTION 01 11 00 Page 1

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL INFORMATION

A large scour hole has been found downstream of the dam apron. This hole extends approximately 120-130 feet from the hydropower plant intake towards the lock. To repair the scour, filter fabric will be installed and R-8 stone will be placed on top of the filter fabric on a 2 to 1 slope downstream and away from the dam as indicated on the drawings provided, or as directed by the Government. Derrick stone will be placed on top of the R-8 to complete the scour protection. Some probing and dredging (pre-excavation) of existing material will be necessary to place the derrick stone. The Contractor will be required to take initial and final soundings in the work area. The Contractor shall provide all necessary floating plant equipment, labor, and supplies to perform the work.

1.1 SCOPE OF WORK

The project design is based on the November 2008 dive inspection findings.

Conditions encountered during construction may require modification of the design. Changes shall be made with the approval of the Contracting Officer. A general procedure is shown on the contract drawings, however, the Contractor is cautioned that extreme care must be taken when working on or around this structure. The quantities shown on the Bid Schedule are based on the available soundings.

1.1.1 Scour Protection

Scour protection consisting of filter fabric and stone shall be placed on grade downstream of the dam apron as shown on the drawings. Pre-excavation will be required to create a level area along the apron and a toe at the downstream end of the scour protection. The filter fabric will then be installed and R-8 stone placed on top of the filter fabric. Derrick stone shall be placed on top of the R-8 stone to bring the grade up to the original design contours as shown in the drawings.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION (NOT USED)

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SECTION 01 11 00 Page 2

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 LUMP SUM PAYMENT ITEMS:

1.1.1 Mobilization and Demobilization

1.1.1.1 Payment

1.1.1.2 Unit of Measure

1.1.1.3 Bid Item

1.1.2 Project Sign

1.1.2.1 Payment

1.1.2.2 Unit of Measure

1.1.2.3 Payment Item

1.1.3 Soundings

1.1.3.1 Payment

1.1.3.2 Unit of Measure

1.1.3.3 Bid Item

1.2 UNIT PRICE PAYMENT ITEMS

1.2.1 General

1.2.2 Dredging

1.2.2.1 Payment

1.2.2.2 Measurement

1.2.2.3 Unit of Measure

1.2.2.4 Bid Items

1.2.3 Geotextile

1.2.3.1 Payment

1.2.3.2 Measurement

1.2.3.3 Unit of measure

1.2.3.4 Bid Item

1.2.4 Stone Scour Protection

1.2.4.1 Payment

1.2.4.2 Measurement

1.2.4.3 Unit of Measure

1.2.4.4 Bid Items

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SECTION 01 22 00.00 10 Page 1

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 LUMP SUM PAYMENT ITEMS:

Payment items for the work of this contract for which contract lump sum payments will be made are listed in the Price Schedule and described below. All costs for items of work, which are not specifically mentioned to be included in a particular lump sum or unit price payment item, shall be included in the listed lump sum item most closely associated with the work involved. The lump sum price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.1.1 Mobilization and Demobilization

1.1.1.1 Payment

Payment for these items shall constitute full compensation for all labor, equipment, material, and supply costs to move machinery, tools and supplies onto the project site and to remove such items from Government property at the close of the project. Payment for Remobilization and Demobilization shall include costs associated with remobilization for placement of derrick stone and associated demobilization.

1.1.1.2 Unit of Measure

Unit of Measure: Lump Sum.

1.1.1.3 Bid Item

0002 MOBILIZATION AND DEMOBILIZATION

1.1.2 Project Sign

1.1.2.1 Payment

Payment will be made for costs associated with furnishing, installing, maintaining and removing project sign as specified in Section 01 50 10

PROJECT SIGNS.

1.1.2.2 Unit of Measure

Unit of measure: lump sum.

1.1.2.3 Payment Item

0003 Project and Safety Signs

SECTION 01 22 00.00 10 Page 2

1.1.3 Soundings

1.1.3.1 Payment

Payment for this item shall constitute full compensation for all labor, equipment, material, and supply costs to perform soundings for measurement and payment and for confirmation of placement of scour protection as specified.

1.1.3.2 Unit of Measure

Unit of Measure: Lump Sum.

1.1.3.3 Bid Item

0004 SOUNDINGS

1.2 UNIT PRICE PAYMENT ITEMS

1.2.1 General

Payment items for the work of this contract on which the contract progress payments will be based are listed in the PRICE SCHEDULE, and described below. The unit price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.2.2 Dredging

1.2.2.1 Payment

Payment for the dredging will be made on the basis of actual volume of materials dredged as shown on the contract drawings. Payments shall constitute full compensation for all labor, equipment, materials and supplies for performing dredging; and backfill of material as indicated.

Payments shall also include all costs for control of effluents from the dredged materials; performing measurements for payment; and all other incidental costs in connection with these aspects of the work under this contract. All sounding data shall be furnished to the contracting office within 48 hours of completing the survey and if late $10,000 shall be withheld until received from the next pay estimate.

1.2.2.2 Measurement

All measurements for payment will be based on information gathered from surveys (soundings) made at the project site prior to the commencement of excavation and once following each stage of work completed. No measurement for payment will be made for removal of any materials beyond that indicated on the contract drawings and any overdepth as described in Section 35 20 23.10 DREDGING. The Contractor shall sound the riverbed over the area to be excavated by a method and with equipment acceptable to the Contracting Officer. The use of the "bucket" method will not be acceptable. In general, surveys for payment of dredging shall conform to a Class 1, soft bottom survey as described in EM 1110-2-1003. The lines of soundings shall be taken at 25-foot centers and at all breaks. The length of the sounding lines shall be sufficient to completely survey the area being dredged. Individual sounding points shall be no more than 10 feet

SECTION 01 22 00.00 10 Page 3 apart along each line of soundings. Additional soundings shall be taken as directed by the Contracting Officer. Initial and end-of-stage soundings shall be taken on the same control stations. Any areas not conforming to the specified overdepth for underwater excavation shall be corrected and resounded, at the Contractor's expense. The Contractor shall perform additional soundings as necessary during the progress of the work to verify depths. All sounding data shall be furnished to the Contracting Officer promptly after the information has been obtained and compiled. Initial soundings shall constitute the original cross sections from which all measurements will be based to calculate the quantity of underwater excavation or fill accomplished, and without regard to any changes in the surface that may occur during the prosecution of the work. The soundings taken following each stage of the work shall be used with the soundings taken following the previous stage to compute areas and quantities, and shall be used to verify that the specified bottom elevations and slopes have been achieved. No measurement for payment will be made for any material excavated beyond that permitted by the allowable overdepth for the specified bottom elevation or specified side slopes. The Contracting Officer shall approve all methods and procedures for quantity surveys.

Unless otherwise specified and/or approved, quantities shall be calculated in cubic yards by the average end area method.

1.2.2.3 Unit of Measure

Unit of measure: cubic yard (CD)

1.2.2.4 Bid Items

0005 DREDGING

1.2.3 Geotextile

1.2.3.1 Payment

Payment for geotextile shall include costs for furnishing and placing the geotextile, and all other incidental costs in connection with these aspects of the work under this contract. No payment will be made for geotextiles replaced because of waste, contamination, damage, repair, or due to Contractor fault or negligence.

1.2.3.2 Measurement

Installed geotextiles will be measured for payment in place to the nearest square yard of protected area as shown on the drawings. No measurement will be made of material in laps.

1.2.3.3 Unit of measure

Unit of measure: Square Yard (SY).

1.2.3.4 Bid Item

0006 GEOTEXTILE

1.2.4 Stone Scour Protection

1.2.4.1 Payment

Payment shall be made for stone scour protection placed downstream of the

SECTION 01 22 00.00 10 Page 4 dam apron, and as shown on the plans and as specified. Payment for the above items shall be made on the basis of cubic yards of materials acceptably placed, as shown and specified. Payments shall constitute full compensation for all labor, equipment, materials and supplies for placing scour protection. Payments shall also include all costs for performing measurements for payment; and all other incidental costs in connection with these aspects of the work under this contract.

1.2.4.2 Measurement

The unit of measurement for scour protection items shall be cubic yards.

Measurement for payment for will be based on information gathered from surveys and soundings.

Measurement for scour protection placed downstream of the dam apron will be based on information gathered from surveys and soundings. The Contractor shall sound the riverbed within the area that scour protection is to be placed by a method and with equipment acceptable to the Contracting Officer. The use of the "bucket" method will not be acceptable. The lines of soundings shall be at 25 foot centers, and the length of the sounding lines shall be sufficient to completely survey the area being filled with scour protection. Individual sounding points shall be no more than 15 to 20 feet apart along each line of sounding. Additional soundings for verification shall be taken as directed by the Contracting Officer.

Initial and final soundings shall be taken at the same control stations.

An initial set of soundings shall be made prior to commencement of placing scour protection and a final set of soundings shall be taken after all scour protection has been placed. The Contractor shall perform additional soundings as necessary during the progress of the work to verify the thickness and slopes of scour protection. All sounding data shall be furnished to the Contracting Officer promptly after the information has been obtained and compiled. Initial soundings shall constitute the original cross sections from which all measurements will be based for calculation of the quantity of scour protection, without regard to any changes in the surface that may occur during prosecution of the work. The final set of soundings shall be used to verify that scour protection has been placed to the required thicknesses and slopes as shown on the drawings, and conform with the allowable tolerances specified. Areas of scour protection that do not conform with the cross sections shown or tolerances specified shall be resounded. If the repeat soundings indicate deviation from plans and tolerances, the contractor shall make adjustments in the placement to bring the slope within specifications. No measurement for payment will be made for any material placed in excess of tolerances permitted for the thickness of material, or beyond the specified side slopes. The Contracting Officer shall approve all methods and procedures for quantity surveys. Unless otherwise specified and/or approved, quantities shall be calculated in cubic yards by the average end area method based on initial and final surveyed cross sections.

1.2.4.3 Unit of Measure

Unit of Measure: Cubic Yard (CD)

1.2.4.4 Bid Items

0007 STONE SCOUR PROTECTION

0008 DERRICK STONE

SECTION 01 22 00.00 10 Page 5

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SECTION 01 22 00.00 10 Page 6

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 30 00.10

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 GENERAL REQUIREMENTS

1.2 REFERENCES

1.3 SUBMITTALS

1.4 DRAWINGS

1.4.1 Contract Drawings

1.4.2 Reference Drawings

1.5 WORK AREAS AND RESTRICTIONS

1.5.1 Work and Laydown Areas

1.5.2 Work Areas

1.5.3 Operation of Project Facilities

1.5.4 Protection of Existing Roads and Property

1.5.4.1 General

1.5.4.2 Hauling Permits

1.5.5 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

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

1.8 RESTRICTIONS TO RIVER TRAFFIC FOR CONSTRUCTION

1.8.1 General

1.9 DAMAGE TO WORK

1.10 OPERATION OF GOVERNMENT FACILITY

1.11 ALLEGHENY RIVER, LOCK AND DAM 5, HOURS OF OPERATION

1.12 CONTRACTOR'S WORK HOURS

1.13 COORDINATION WITH LOCK AND DAM PERSONNEL

1.14 CONTRACTOR COORDINATION AND SCHEDULING

1.15 SAFETY AND HEALTH REQUIREMENTS

1.16 POOL LEVELS

1.16.1 Hydrographs

1.17 DISCHARGE-DURATION

1.18 INSPECTIONS AND ACCEPTANCE OF WORK

1.18.1 General

1.18.2 Access to Work

PART 2 PRODUCTS

SECTION 01 30 00.10 Page 1

2.1 PRODUCTS AND PARTS OF STANDARD MANUFACTURE

PART 3 EXECUTION

3.1 SEQUENCE OF WORK

3.2 RECORD "AS-BUILT" DRAWINGS

3.2.1 General

3.2.2 Coordination of As-Built Drawings

3.2.3 Submission

3.3 RECORDS AND REPORTS

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SECTION 01 30 00.10 Page 2

SECTION 01 30 00.10

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 GENERAL REQUIREMENTS

This section covers 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. ARMY CORPS OF ENGINEERS (USACE)

EM 1110-2-1902 (2003) Slope Stability

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

EM 1110-2-2105 (1993) 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

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

1.3 SUBMITTALS

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

submittals not having a "G" designation are for information only or as otherwise designated. 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

Propelling Unit Agreement; G

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

SECTION 01 30 00.10 Page 3

Access Plan; G

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

Temporary Mooring Facilities; G

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

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

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

The contract drawings 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 in preference to scale measurements. 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 and 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, and Reference drawings. 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.

The following contract drawings are included:

Sheet 1 Work Limits Plan Sheet 2 Plan of Work Area Sheet 3 Cross Section Details

NOTE: Depths and conditions shown on the contract drawings were current as of November 2008 during dive inspections and may not show the actual channel conditions during construction

SECTION 01 30 00.10 Page 4

1.4.2 Reference Drawings

The reference drawings included in the folio of contract drawings show original construction conditions of the lock and dam and the existing facilities and structures shown on the drawings. Unless otherwise noted, dimensions and elevations, and other features shown on reference drawings are generally based on As-Built conditions. The Government cannot guarantee the accuracy of the dimensions, elevations, and features shown 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. The Contracting Officer shall be notified of any discrepancies prior to commencing work.

The following reference drawings are included:

Allegheny River, Lock 5, Location Plan Allegheny River, Lock and Dam 5, Dam, Plan, Elevation and Section Cross Sections from November 2008 Sonar Survey Hydrographs for L/D 5

1.5 WORK AREAS AND RESTRICTIONS

1.5.1 Work and Laydown Areas

All work must be performed from the floating plant. The Contractor will not have access to any laydown areas at the lock side of the existing Allegheny River, Lock and Dam No. 5. The Corps of Engineers has obtain on the left bank the use of a N/F Allegheny Hydro Partners #5, LTD easement (20 feet wide) to the hydropower plant.

1.5.2 Work Areas

Work in the area immediately below the dam will be facilitated by coordination with the hydropower plant to pass the majority of flows through the plant. Periods of high water could necessitate forcing the Contractor to temporarily stop work.

1.5.3 Operation of Project Facilities

Mooring of floating plant during non-working hours shall be the Contractors responsibility. Mooring at the lock site shall be coordinated with the lockmaster so as not to interfere with normal navigation activities.

1.5.4 Protection of 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

SECTION 01 30 00.10 Page 5 of the original roadway conditions have provided satisfactory documentation. Prior to beginning any construction, the Contractor shall videotape on DVD 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 with 5 days after documented. 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 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 Utilities

The Contractor shall be responsible for coordination of all existing utilities with the work and for providing utilities for construction purposes.

1.6 EXISTING SURVEY CONTROLS

The locations of Corps of Engineer survey controls will be provided.

1.6.1 Project Alignment

All new work to be constructed under this contract shall be constructed level, plumb, and accurately from measurements made from the survey controls indicated. Additional survey control points shall be established by the 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.

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

SECTION 01 30 00.10 Page 6 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. An on-site propelling unit or leased towboat capable of moving the floating plant must be available at all times. The written 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 and submit a propelling unit agreement. 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 manufacture 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

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 809 (inland) as applicable.

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 temporary mooring facilities for the 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. FLOATING PLANT SHALL NOT BE PLACED AGAINST

THE DAM. NO LOADS SHALL BE APPLIED TO THE DAM STRUCTURE.

SECTION 01 30 00.10 Page 7

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 channel for mooring. Any such temporary mooring structures shall be prohibited within the restricted zone of the dam. 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, EM 1110-2-2104, EM 1110-2-2105, EM 1110-2-2502, EM 1110-2-2503, and EM 1110-2-2504. A copy of these "Engineering Manuals" may be obtained as specified in Section 01 42 00 SOURCES FOR REFERENCE

PUBLICATIONS.

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 Ordinary High Water (OHW) (El. 762.9-upper pool and El. 756.6-lower pool) shall comply with the conditions of the Corps of Engineers Nationwide Permit (NWP) No.

33, "Temporary Construction, Access & Dewatering," which is found in Public Notice No. 02-NWP3, dated September 4, 2002. In accordance with Section 00700 CONTRACT CLAUSES, paragraph "PERMITS AND RESPONSIBILITIES," the Contractor shall be responsible to secure all necessary permits required by Federal, state and local laws for development of any temporary mooring.

Development of plans for any proposed mooring shall be prepared under the direction of, or directly by, a Registered Professional Engineer. Any temporary moorings constructed by the Contractor shall be completely removed at the completion of the project.

1.7.6 Suspension of River Traffic and Construction

1.7.6.1 Withdrawal of Equipment and Floating Plant

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.

Historical stage hydrographs will be provided to the Contractor to show past river conditions.

The equipment shall be relocated to the outside face of the upstream river wall or to the Contractor's off-site mooring location. The decision of whether the Contractor's plant may be moored to the upstream river wall will be determined on the basis of the projected upstream pool level.

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:

Procedure(s) For Monitoring River Conditions Including River Levels, Discharges, And Velocities Mooring Location(s) Monument River Condition Which Affect Notification Actions Monument River Conditions Which Affect Withdraw

SECTION 01 30 00.10 Page 8

Sequence and Duration of Withdraw Procedures for Care of Moored Floating Plant and Equipment Monument River Conditions Affecting Remobilization 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 due to high river conditions (flow and elevation) is considered an incidental condition of work dictated by the nature of the work site. 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 Section 00700 CONTRACT CLAUSES, paragraph "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 Section 00700 CONTRACT CLAUSES, paragraph "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 Allegheny River, Lock and Dam No. 5. 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.

1.8 RESTRICTIONS TO RIVER TRAFFIC FOR CONSTRUCTION

1.8.1 General

Unless specifically authorized or directed, no interruption of traffic through the lock chamber or its approaches will be permitted. The Contractor will not be given any privileges for priority lockage under the conditions of this contract, unless specifically authorized by the Contracting Officer.

1.9 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

SECTION 01 30 00.10 Page 9 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 Section 00700 CONTRACT CLAUSES, paragraph "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.

1.10 OPERATION OF GOVERNMENT FACILITY

The Allegheny Lock and Dam 6 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 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.

1.11 ALLEGHENY RIVER, LOCK AND DAM 5, HOURS OF OPERATION

Locks 5, 7, 8, and 9, Allegheny River will be closed for the season effective October 26, 2008 thru May 1, 2009. Commercial operators desiring appointment lockages at any of the closed lock must make arrangements at least 24 hours in advance by calling one of the following offices between the hours of 7:30 A.M. to 3:00 P.M., Monday through Friday:

Lock 5, Allegheny River at (724) 295-2261 Locks and Dams Area Office at (412) 395-7650.

Lock 6 will be staffed as required during the construction period. Because of limited staffing, no lockages will normally be made between 11:00 P.M.

and 6:30 A.M. at Locks 6 through 9. No appointments will be accepted for lockages that would occur during this 7-1/2 hour period, except as approved by the Contracting Officer. Arrangements may be made through the Contracting Officer to perform lockages at other time.

1.12 CONTRACTOR'S WORK HOURS

There will be no restrictions imposed on Contractor's work hours for this project.

1.13 COORDINATION WITH LOCK AND DAM PERSONNEL

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 dam for operating personnel, during every phase of the work, unless otherwise directed by the Contracting Officer. Coordinate all work with the Contracting Officer and

SECTION 01 30 00.10 Page 10 the Allegheny Lock and Dam No. 5 Lockmaster.

1.14 CONTRACTOR COORDINATION AND SCHEDULING

In accordance with Section 01 32 17 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.

1.15 SAFETY AND HEALTH REQUIREMENTS

Safety and Health Requirements shall conform to Section 01 35 26 GOVERNMENT 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.

1.16 POOL LEVELS

The Government will attempt to vary the pool levels for the convenience of the Contractor during the progress of the work. The minimum upper pool level, termed "normal pool", is El. 757 feet (Project Upper Gage = 9.0 feet) as shown on the drawings. The actual upper pool elevation will vary. The minimum lower (normal) pool level is elevation 746.0 feet and is determined by Allegheny River Dam 4. The lower pool will vary. For either pool, the Contractor should refer to the hydrographs, Stage-Discharge relationships, and the Stage-Duration curves when planning the various work activities for this project. This information is shown on the drawings. It is noted that Allegheny River Lock and Dam 5 is closed to navigation traffic at an upper gage reading of 16.0 feet.

1.16.1 Hydrographs

The historical discharge hydrographs represent river flow, and should be used by the Contractor to gain knowledge of historical trends. For Allegheny River Lock and Dam 5, the hydrographs were developed from actual records from the United States Geological Survey gage at Freeport, PA. The Contractor should refer to the hydrographs and Stage-Discharge relationships on the drawings to determine water surface elevations.

1.17 DISCHARGE-DURATION

The Contractor shall refer to the Discharge-Duration curves on the drawings to determine the percentage of time for which various discharges were equaled or exceeded during the period of record. To assist in determining stage-duration relationships, obtain the relevant stage for a particular discharge from the appropriate stage-discharge relationship, and relate it to the discharge-duration curve.

1.18 INSPECTIONS AND ACCEPTANCE OF WORK

1.18.1 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 Officer. The Contracting Officer or representatives of the Contracting

SECTION 01 30 00.10 Page 11

Officer so authorized 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.

1.18.2 Access to Work

The Contractor shall provide access to all areas of work for inspection by the Government. The Contractor shall also provide access for Government boats transporting Government inspectors to the various areas of work. The Contractor shall submit an access plan for Government lock operating personnel 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, 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 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.

PART 3 EXECUTION

3.1 SEQUENCE OF WORK

The work shall be prosecuted in such order of precedence as best suits the Contractor's construction schedule, the sequencing requirements shown on the contract drawings, and the following restrictions. 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 Contract Section 00800 SPECIAL CONTRACT REQUIREMENTS, paragraph "LIQUIDATED DAMAGES --CONSTRUCTION," the Contractor will be assessed the daily monetary damages for failure to complete the work in the allotted contract period.

3.2 RECORD "AS-BUILT" DRAWINGS

3.2.1 General

The Contractor shall maintain a separate set of marked-up full scale reference drawings (furnished by the Contracting Officer) indicating as-built conditions. These drawings shall be maintained in a current condition at all times until completion of the work and shall be available for review by Government personnel at all times. All variation from the contract drawings, for whatever reason, including those occasioned by modifications, optional materials, and approved shop drawings, shall be indicated. These variations shall be shown in the same general detail

SECTION 01 30 00.10 Page 12 utilized in the contract drawings. All modifications to the contract shall be reflected on the as-built drawings at the time of completion of the change order work.

3.2.2 Coordination of As-Built Drawings

Monthly meetings shall be conducted between the Contractor and Government to review and monitor the progress of As-Built drawings.

3.2.3 Submission

Upon completion of the project and before final payment is made, these annotated "As-Built" prints shall be certified as to their correctness by the signature of the Contractor and delivered to the Contracting Officer.

3.3 RECORDS AND REPORTS

All records, test reports and similar documentation produced in connection with quality control operations shall be promptly submitted to the Contracting Officer or his authorized representative as required by the specifications.

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SECTION 01 30 00.10 Page 13

DIVISION 01 - GENERAL REQUIREMENTS

01 32 17

CONSTRUCTION PROGRESS SCHEDULE

PART 1 GENERAL

1.1 QUALIFICATIONS

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

3.2 MONITORING CONSTRUCTION PROGRESS

3.3 PROGRESS SCHEDULE - BAR CHART

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SECTION 01 32 17 Page 1

01 32 17

CONSTRUCTION PROGRESS SCHEDULE

PART 1 GENERAL

1.1 QUALIFICATIONS

The Contractor shall designate an authorized representative who shall be responsible for the preparation of all required project schedule reports.

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

Pursuant to the Contract Clause, SCHEDULE FOR CONSTRUCTION CONTRACTS, a Project Schedule as described below shall be prepared. The scheduling of construction shall be the responsibility of the Contractor. Contractor management personnel shall actively participate in its development.

Subcontractors and suppliers working on the project shall also contribute in developing and maintaining an accurate Project Schedule. A bar chart shall be prepared in accordance with paragraph PROGRESS SCHEDULE - BAR CHART

3.2 MONITORING CONSTRUCTION PROGRESS

The schedule shall be the basis for measuring Contractor progress. Lack of an approved schedule or scheduling personnel will result in an inability of the Contracting Officer to evaluate Contractor's progress. Failure of the Contractor to provide all information, as specified below, shall result in the disapproval of the entire Project Schedule submission and the inability of the Contracting Officer to evaluate Contractor progress for payment purposes. In the case where Project Schedule revisions have been directed by the Contracting Officer and those revisions have not been included in the Project Schedule, the Contracting Officer may hold retainage up to the maximum allowed by contract, each payment period, until revisions to the Project Schedule have been made.

3.3 PROGRESS SCHEDULE - BAR CHART

The progress chart to be prepared by the Contractor pursuant to Section 00700 CONTRACT CLAUSE, paragraph "SCHEDULES FOR CONSTRUCTION CONTRACTS" shall consist of a bar chart as described herein. In preparing this schedule, the scheduling of construction is the responsibility of the Contractor and contractor management personnel shall actively participate in its development. The chart may be prepared in a format proposed by the Contractor and approved by the Contracting Officer. Each activity shall include the applicable Price Schedule item number and show the estimated cost. The chart shall be prepared in sufficient detail to clearly show the Contractor's planned progress and the relationship of the various items of work. Larger activities shall be broken down into smaller activities with clearly defined limits (i.e. Excavation between STA xx and STA yy). In general, the estimated cost of any individual activity should not exceed $50,000. The selection and number of activities shall be subject to the Contracting Officer's approval. The chart shall be updated monthly to show

SECTION 01 32 17 Page 2 actual progress and percentage of work completed for each activity. The Contractor shall submit, as part of his monthly request for payment, updated copies of his progress schedule identifying the work completed during the reporting period. If the Government issues changes to the existing work or adds additional work items to the contract, the Contractor shall revise his progress schedule accordingly. All costs associated with revising the schedule shall be included as part of the modification of the contract. If the Contractor's progress falls behind his planned work effort, a revised schedule shall be furnished to show how the Contractor proposes to complete the remaining work within the contract time. If the Contractor fails to submit updates as required, the Contracting Officer may withhold approval of partial payment estimates, until such submittals are made.

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SECTION 01 32 17 Page 3

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 32 23

SURVEY AND ALIGNMENT CONTROL

PART 1 GENERAL

1.1 SUMMARY

1.2 REFERENCES

1.3 GENERAL REQUIREMENTS

1.3.1 Project Survey Control

1.3.2 Responsibilities

1.4 QUALIFICATIONS AND EXPERIENCE

1.5 SUBMITTALS

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 Procedures and Methodologies

3.2 DREDGING SURVEYS

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SECTION 01 32 23 Page 1

SECTION 01 32 23

SURVEY AND ALIGNMENT CONTROL

PART 1 GENERAL

1.1 SUMMARY

This section addresses the overall project survey control and procedure requirements to meet all survey/positional accuracy requirements for this 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. ARMY CORPS OF ENGINEERS (USACE)

EM 1110-2-1003 (2002, Chg 1 2004) Hydrographic Surveying

EC 1130-2-210 (1998) Hydrographic Surveying

1.3 GENERAL REQUIREMENTS

1.3.1 Project Survey Control

The proposed horizontal and vertical control to…