A.02.16 SCOPE OF WORK.pdf

SCOPE OF WORK

1.4 SCOPE

The work covered by this section consists of the fabrication, assembly, and delivery of one (1) Upper Selective Withdrawal Intake Bulkhead, one (1) Lower Selective Withdrawal Intake Bulkhead, a commercially available spreader beam, all associated rigging, four (4) Outer Dog-Off Hook Assemblies, two (2) Middle Dog-Off Hook Assemblies, and all appurtenant items as specified and shown on the contract drawings. The selective withdrawal intake bulkheads shall be complete, welded, structural steel structures with fabrication and assembly performed in a fabrication shop. Each selective withdrawal intake bulkhead is a horizontally framed structure with a total damming surface measuring approximately 6'-10" in height and 7'-1" in width. The bulkheads each also consist of lifting lugs, perimeter rubber seals, and a knife gate valve installed on the upstream side of the skin plate. A commercially available spreader beam shall also be provided as a component of the Lower Selective Withdrawal Intake Bulkhead. The spreader beam shall allow for a straight pick from the Lower Selective Withdrawal Intake Bulkhead's outer lugs and shall allow for a single center pick point connection to the hoist. The minimum working load of the spreader beam shall be 5 tons. A total of six (6) Dog-Off Hook Assemblies shall be provided and shall be fabricated per the contract drawings.

Due to the critical nature of this structure, and the fact that some members are "Fracture Critical", all welding to the bulkhead units and hook assemblies is required to be performed to AWS D1.5M/D1.5 welding code standard by a steel fabricator certified under the AISC Quality Certification Program for "Fabricators of Hydraulic Steel Structures" (HYD) or Steel Bridge Fabricators (AISC 207-16) for "Advanced Bridges" (ABR) or "Intermediate Bridges" (IBR) meeting supplemental requirements for "Fabricators of Bridges with Fracture- Critical Members" (FC). The required spreader beam shall be fabricated per industry standards for lifting devices. The Contractor shall possess five (5) years documented experience on projects of similar scope.

Individuals that work for the Contractor, or whom are hired by the Contractor, that will require access to the Beech Fork Dam (BBF) will need to meet the security requirements and AT/OPSEC requirements as specified in Section C-Part A 00 80 00 SPECIAL CONTRACT REQUIREMENTS. This shall include the delivery truck personnel and the Contractor's representative(s) that will perform the final inspection once the selective withdrawal intake bulkheads have been delivered to the project.

1.5 DRAWINGS

The 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 the representation of the work, and shall promptly notify the Contracting Officer of any discrepancies. Any omissions from the drawings or misdescription of details of the work which are manifestly necessary to carry out the intent of the drawings, or which are customarily performed, shall not relieve the Contractor from performing such omitted or misdescribed details of work.

1.6 PACKAGING AND MARKING

The Contractor shall prepare and load the selective withdrawal intake bulkheads on a truck for shipment in accordance with SECTION D, PACKAGING AND MARKING. Any damage incurred during handling, packaging, loading and shipping shall be repaired and/or replaced by the Contractor as directed by the Contracting Officer without additional cost to the Government.

1.7 INSPECTIONS AND ACCEPTANCE OF WORK

Items furnished under this contract order shall be inspected in accordance with SECTION E, INSPECTION AND ACCEPTANCE. 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.

When all the work for the selective withdrawal intake bulkheads and appurtenant items specified under this contract have been completed and the selective withdrawal intake bulkheads and appurtenant items have been delivered f.o.b. destination, the Contracting Officer will make a thorough examination of the selective withdrawal intake bulkheads and appurtenant items to assure that no damage occurred during shipment. If the selective withdrawal intake bulkheads and appurtenant items are found to be in good condition, they will be accepted and the Contractor will be so notified.

1.8 CONTRACTOR QUALITY CONTROL

The Contractor shall be responsible for quality control and shall establish and maintain an effective quality control system in accordance with SECTION H, SPECIAL REQUIREMENTS. The quality control system shall consist of plans, procedures, and organization necessary to produce an end product which complies with the requirements of this contract. The system shall cover all fabrication, painting and delivery operations.

1.9 GOVERNMENT WITNESS POINT INSPECTIONS

The Government will conduct witness point inspections throughout the fabrication process and upon delivery to the Government facility. The Contractor shall notify the Government 14 calendar days prior to the defined witness points to allow for scheduling of Government personnel and travel. See Section 05 59 20 FABRICATION OF HYDRAULIC STEEL STRUCTURES for detailed witness point requirements.

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. 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 COMBINED PRODUCTION SCHEDULE AND PROGRESS CHART

The Contractor shall, within 15 days after receipt of Notice of Award, submit a proposed Production Schedule showing how the Contractor proposes to perform the work, the dates on which he will start the several salient features, including procurement of materials, fabrication, assembly, testing, cost breakdown and the contemplated dates for completion and shipment. The schedule shall be in the form of a bar graph of suitable scale to indicate appropriately the percentage of work scheduled for completion at any time on the salient features as well as the completion of all work. The Contractor shall enter on the graph the actual progress at the end of each month, and shall immediately deliver a copy to the Contracting Officer or his authorized representative. These Updated Progress Charts reflecting actual progress will be considered "Production Progress Reports".

3.2 SEQUENCE OF WORK

The work shall be prosecuted in such order of precedence as best suits the Contractor's fabrication schedule. 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.

3.3 PROJECT RECORDS

The Contractor shall maintain and submit "As-Built" drawings, As-Built Record of Equipment and Materials, and Data Book in accordance with Section C-Part F 01 78 00, CLOSEOUT SUBMITTALS.

3.4 DELIVERY

The Contractor shall prepare, load and ship the selective withdrawal intake bulkheads and the appurtenances items in accordance with SECTION F, DELIVERIES AND PERFORMANCE.

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