AMD006.pdf

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Attached to
Grand Coulee Dam Left and Right Powerhouses Bridge
Solicitation number
140R1022B0001
Issued by

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This document contains technical specifications for bridge crane replacements at the Grand Coulee Dam Left and Right Powerhouses. The specifications cover the scope of work, which includes replacing two bridge cranes and modernizing the crane control systems. The specifications provide requirements for structural steel fabrication, welding procedures, load testing, inspection and certification. They also require the contractor to survey the existing crane runway structures and rails to assess whether reuse and adjustment is feasible or replacement is necessary. The specifications will be used for Solicitation Number 140R1022B0001 issued by the Bureau of Reclamation to procure the bridge crane replacements with an expected notice of award by the fourth quarter of fiscal year 2022.

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TECHNICAL SERVICE CENTER

WRITTEN SPECIFICATIONS SIGNATURE SHEET

Specifications Title:

Project Title:

Region:

Prepared: P.E.

Technical Approval: P.E.

Certified: P.E.

AMD/MOD

No.

Technical Approval Signature:

P epared By Signature:

Revised Specifications

Grand Coulee Left and Right Powerhouses

Bridge Crane Replacement

Columbia Basin Project, Washington

AMD No._006 41 22 20 - Bridge CraneZACHAR

Y CEPAK

Digitally signed by

ZACHARY CEPAK

Date: 2022.03.25 08:52:13 -06'00'

MICHAEL

VON BUHR

Digitally signed by

MICHAEL VON BUHR

Date: 2022.03.23 10:17:03 -06'00'

Grand Coulee Left and Right Powerhouses Bridge Crane Replacement Amendment No. 006

Construction Program (Revised) 01 32 10 - 1

SECTION 01 32 10

CONSTRUCTION PROGRAM

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Costs:

1. Developing Baseline Schedule: Include in lump-sum price offered in the Prices Schedule for Mobilization and Preparatory Work.

2. Updating and Using Construction Program: Include as part of Contractor’s overhead.

1.02 DEFINITIONS

A. Schedule: The Critical Path Method (CPM) of planning and scheduling a construction project where activities are arranged based on activity relationships and network calculations determine when activities can be performed and the critical path of the project.

B. Project Calendar(s): Cross reference of numerical workdays with calendar days. Project calendars serve as the basis for day/date conversion and assign workdays and non-workdays.

C. Resources: Equipment, labor or crews, materials, subcontractors, fabricators, manufacturers, and consultants.

D. Out of Sequence Work: An activity that starts before its predecessor activities are completed.

1.03 REFERENCE STANDARDS

A. Associated General Contractors of America (AGC)

1. AGC Manual Construction Planning and Scheduling Manual, 2004

1.04 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 - Submittals.

1. Furnish database files in format compatible with Oracle Primavera P6 Professional Project Management.

2. Upon request, provide information and data used to develop and maintain the Construction Program to the CO.

B. RSN 01 32 10-1, Representative Information:

Construction Program (Revised) 01 32 10 - 5 specified in Section 01 33 00 - Submittals. Include Required Submittal Number (RSN) in activity description.

11. Include separate activities for fabrication or manufacturing when work involves significant quantities, long lead times, is on the critical path or near critical path, or as requested by the COR

12. Include contract title, contract number, and Contractor’s name on transmittal cover sheet and each sheet of Gantt chart.

13. For each activity on Gantt chart, display activity identification number, activity description, planned or original duration, start date, finish date, total float, and calendar identification. Do not display early start and late start fields.

14. Include table of abbreviations used in the schedule, listed and defined alphabetically.

15. Use finish to start logic relationships between activities. Do not utilize start to start, finish to finish, or start to finish logic relationships. Start to start logic may be utilized on start milestones and finish to finish logic may be utilized on finish milestones only. Do not use positive or negative lead or lag times.

16. Use durations in units of whole workdays.

17. Provide best estimate of time required to complete activity considering quantity of work, work conditions, location of work, and planned resources for activity.

18. Equate durations of Government reviews and other identified actions to maximum number of calendar days specified in their respective paragraphs.

19. Establish workday calendar(s) and use these in the schedule to translate activity's workday duration into calendar dates. Use unique calendar names; do not use software default calendar names. Save calendars as project calendars, not global calendars.

B. Baseline Schedule:

1. Represents Contractor’s as-planned approach to accomplishing the work. Do not include actual start dates, percent completes, or actual finish dates.

C. Updated Schedule:

1. Meet monthly with COR at Government’s project office, or at a location approved by the COR, to review progress made to end date of progress payment period.

Establish dates that activities were started and completed and remaining duration for each activity started but not completed during the period.

a. Discuss and mutually agree upon changes to the schedule.

b. Out-of-sequence activities are not allowed. Revise logic to reflect change in work plan.

c. Finalize updated Construction Program database with mutually agreed upon changes.

Bridge Crane Replacement (Revised) 41 22 20- 26

EE. Deleted

2.02 FABRICATION

A. Structural Steel: In accordance with these specifications and AISC 360.

B. Fabricate all load bearing components, couplings, shafts, and gears in hoist drive trains from rolled or forged steel. Brake drums may be fabricated from ductile iron.

C. Welding:

1. In accordance with qualified procedures per AWS D14.1/D14.1M.

2. Welding operators: Capable of meeting qualification tests for operators as outlined in AWS D1.1. COR may require test specimens by welding operator in accordance with AWS D1.1 appendix.

PART 3 EXECUTION

3.01 INSTALLATION

A. Prior to submitting 30 percent design, survey and measure existing crane runway rails.

Submit survey report detailing recommendations for either reuse and adjustment or replacement of the rails.

1. Runway rail survey report:

a. Provide a report stating all aspects of a crane rail survey and deficiencies stated, citing codes. Profile charts for crane rail straightness, crane rail span, rail to rail height stating deviations per data point for each rail compared to code requirements.

b. Requirement areas of the survey are, but not limited to:

1) Inspection of the entire length of runway rail for abnormal or excessive wear to the head and sides.

2) Runway tiebacks.

3) Visually and physically inspect the entire runway length on both sides as well as the columns and runway girders.

4) Rail gaps and splices.

5) End stops.

6) Structural beams, columns and shelves.

7) Any attachment hardware, loose, damaged, or missing.

2. For reuse and adjustment:

File details come from the government source that posted it. Updated .