B.08_W9127N21B0014 JDTRR21_100% - Reference Drawings.pdf

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John Day Dam Trashrack Rehabilitation
Solicitation number
W9127N21B0014
Issued by

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This document package provides technical specifications for the John Day Dam trashrack rehabilitation project. The U.S. Army Corps of Engineers Portland District is soliciting bids for the rehabilitation of the trashracks at John Day Lock and Dam through solicitation number W9127N21B0014. The scope of work involves structural, mechanical, electrical, hydraulic, and operational components for replacing the trashracks. Design and construction must meet requirements for fracture critical and failure critical members. Materials, corrosion prevention measures, and quality control standards are defined. The small business set-aside procurement is assigned NAICS code 332312 with a size standard of 500 employees. Bids are due by the date specified in the solicitation.

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1 INTRODUCTION

1.1 Purpose
1.2 Executive Summary
1.3 Purpose
1.4 Background
1.5 Participants
1.6 Engineer of Record
1.7 Schedule
1.7.1 Preliminary Construction schedule
1.8 Trash Rack Description
1.9 Trash Rack Lifting Beams and Cranes
1.9.1 Trash Raking
1.9.2 Trash Rack Lifting Beam
1.9.3 Cranes Used
2 SCOPE OF DESIGN WORK
2.1 General
2.2 Structural Work
2.3 Mechanical Work
2.4 Electrical Work
2.5 Hydraulics
2.6 Operations
2.7 Quality Assurance
2.8 Miscellaneous Work
2.9 Independent HDC Review
3 PLANS AND SPECIFICATION PACKAGE CONTENTS
3.1 General
3.2 Specifications Sections
3.3 Drawings
4 DESIGN CHANGES
5 DESIGN
5.1 Items designed by Inspection
5.2 Design Concepts
5.3 Project Preferences
5.3.1 Project Requested Changes
5.4 Design Standards
5.5 Design Life
5.6 Design Loads
5.6.1 Intake Elevations
6 HYDRAULIC STEEL STRUCTURE (HSS)
6.1 Fracture Critical Member (FCM)
6.2 Failure Critical Members
7 MATERIAL FOR NEW RACKS
8 ADDITIONAL INFORMATION
8.1 Corrosion Prevention
8.2 Storage Location
8.3 Site Visit
8.4 Agency Quality Control
8.5 VE Studies
9 APPENDIX A: TRIP REPORT
10 APPENDIX B: SUPPORTING DESIGN CALCULATIONS
10.1 APPENDIX B1: Main Horizontal Girder
10.2 APPENDIX B2: Main Horizontal Girder - Redundancy Check for Fracture Critical Member
10.3 APPENDIX B3: Section Lay Down
10.4 APPENDIX B4: Trash Bar Calculations
10.5 APPENDIX B5: Lifting Lug Design
10.6 APPENDIX B6: Weld Design
10.7 APPENDIX B7: Lifting Lug Bending out of Plane Bending
10.8 APPENDIX B8: Weight and CG
10.9 APPENDIX B9: Hydraulic Calculations (Performed by Amy K. Lynn)

11 APPENDIX C: REFERENCE DRAWINGS

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