Final report : Hazardous Mine Opening Project, Phase 25, Project 28, DSL-AMRB 90-022 : Austin and Marysville Mining Districts, Lewis and Clark County

186 Pages·1992·6.6 MB·English

by  Chen-Northern, Inc

REPORT 3 0864 0015 702
FINAL
HAZARDOUS MINE OPENING PROJECT;
PHASE PROJECT 28
25,
DSL-AMRB 90-022
Austin and Marysville Mining Districts
Lewis and Clark County, Montana
January 1992
STATE DOCUMENTS COLLECTION
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MONTANA 8TATE
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HELENA, MONTANA 59620
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Helena, Montana

FINAL REPORT
HAZARDOUS MINE OPENING PROJECT; PHASE 25, PROJECT 28
DSL-AMRB 90-022
Austin and Marysville Mining Districts,
Lewis and Clark County
Digitized by the Internet Archive
2014
in
https://archive.org/details/finalreporthazar1992chen
FINAL REPORT
HAZARDOUS MINE OPENING PROJECT; PHASE 25, PROJECT 28
DSL-AMRB
90-022
Austin and Marysville Mining Districts,
Lewis and Clark County
Prepared for:
Department of State Lands
Abandoned Mine Bureau
Prepared by:
Chen-Northern, Inc.
1610 B Street
MT
Helena, 59604
January 1992

TABLE OF CONTENTS
Page
INTRODUCTION
1.0 1
1.1 Site Description 1
1.2 Site Locations 1
1.3 Project Objectives 1
1.4 Mining District Histories 5
PROJECT PLANNING AND CONSTRUCTION
2.0 7
CHRONOLOGICAL LISTING OF EVENTS
3.0 8
3.1 Prebid Conference 8
3.2 Project Bids 8
3.3 Project Chronology 8
PROJECT CONSTRUCTION
4.0 10
4.1 Description of Project Plan 10
4.2 Contractor's Operation 10
4.3 Change Orders 12
4.4 Construction Activities/Quantities Used 13
PROJECT COSTS
5.0 15
5.1 Payment Requests 15
5.2 Cost Per District/Mine Opening 15
5.3 Professional Service Fees 16
PROJECT SUMMARY
6.0 18
6.1 Project Reconciliation 18
6.2 Site Conditions After Completion 19
6.3 Monitoring and Maintenance 19
COMMENTS
7.0 21
PHOTOGRAPHIC RECORD
8.0 22

LIST OF TABLES
TABLE 1-1 SITE LOCATIONS 3
TABLE KEY RECEIPT ACKNOWLEDGEMENT STATUS
4-1 11
TABLE CHANGE ORDER SUMMARY
4-2 12
TABLE PAYMENT REQUEST SUMMARY
5-1 15
TABLE 5-2 COST PER DISTRICT 16
TABLE ANALYSIS OF PROFESSIONAL SERVICE FEES
5-3 17
TABLE 6-1 RECLAMATION CLOSURES SPECIFIED VS. CONSTRUCTED ... 18
LIST OF APPENDICES
APPENDIX A VICINITY AND HAZARD MAPS
APPENDIX B BID TABULATIONS
APPENDIX C KEY RECEIPT ACKNOWLEDGEMENTS
APPENDIX D CHANGE ORDERS
APPENDIX E APPROVED PAYMENT CERTIFICATES OF SUBSTANTIAL
COMPLETION REQUESTS, AND AFFIDAVIT ON BEHALF OF
CONTRACTOR
APPENDIX F QUANTITIES AND COSTS
APPENDIX G PHOTOGRAPHIC RECORD