2018-12-26_REVISION - M2008078 ‎(28)‎

• Permit No: M2008078
• IBM Index Class Name: Revision
• Doc Date: 12/26/2018
• Doc Name Note: Preliminary - Part 4 of 4
• Doc Name: Adequacy Review Response
• From: J&T Consulting
• To: DRMS
• Type & Sequence: AM1
• Email Name: AME
• Media Type: D
• Archive: No

TABLE OF CONTENTS
1.0 INTRODUCTION.............................................................................................................1
1.1 Title..................................................................................................................................... 1
1.2 Jurisdiction.......................................................................................................................... 1
1.3 Purpose............................................................................................................................... 1
1.4 Enactment Authority...........................................................................................................2
1.5 Definition Of Terms And Abbreviations..............................................................................2
1.5.1 Definitions.........................................................................................................2
1.5.2 Abbreviations....................................................................................................4
2.0 OFF-RIVER GRAVEL MINING AND WATER STORAGE RESERVOIRS......................6
2.1 Types of River Alignment....................................................................................................6
2.1.1 Existing Unstable Alignment.........................................................................6
2.1.2 Master Plan Alignment......................................................................................6
2.1.3 Minimum Maintenance Alignment.....................................................................7
2.2 Revegetation of Berms ..................................................................................................... 10
2.2.1 Revegetation of River Banks.......................................................................... 10
2.2.2 Revegetation of Pitside Banks and Top of Berm............................................ 10
2.2.3 Revegetation of Soil Riprap Areas ................................................................. 10
2.3 Riverbank Protection......................................................................................................... 11
2.3.1 Riprap ............................................................................................................. 11
2.3.2 Soil Riprap ...................................................................................................... 11
2.3.3 Jetties (Groins)................................................................................................ 12
2.4 Pitside Bank Protection..................................................................................................... 15
2.4.1 Riprap ............................................................................................................. 15
2.4.2 Soil Riprap ...................................................................................................... 16
2.4.3 Soil Cement.................................................................................................... 16
2.4.4 Grouted Boulders............................................................................................ 17
2.4.5 Side Channel Spillway.................................................................................... 17
2.5 Lateral Berms....................................................................................................................22
2.5.1 Type A Lateral Berms.....................................................................................22
2.5.2 Type B Lateral Berms.....................................................................................22
2.5.3 Protection of Lateral Berms............................................................................22
2.5.4 Spillway for Type A Lateral Berms..................................................................23
2.6 Berm-Top Width—Riverbank Berms.................................................................................23
2.6.1 Existing Unstable Alignment...........................................................................24
2.6.2 Master Plan Alignment and Minimum Maintenance Alignment......................24
2.7 Berm-Top Width—Lateral Berms......................................................................................25
2.7.1 Type A Lateral Berms.....................................................................................25
2.7.2 Type B Lateral Berms.....................................................................................25
2.8 Berm-Top Widths..............................................................................................................26
3.0 IN-RIVER GRAVEL MINING.........................................................................................29
3.1 Groundwater Impacts........................................................................................................29
3.2 Sediment Transport...........................................................................................................29
3.3 Water Quality ....................................................................................................................30
3.4 Side Slope Protection........................................................................................................30
3.5 Headcutting Control ..........................................................................................................30
3.5.1 Control Structures...........................................................................................30
3.5.2 Location of Control Structures........................................................................30
3.5.3 Overbank Protection.......................................................................................31
3.6 Upstream Protection .........................................................................................................31
3.6.1 Extent of Upstream Protection........................................................................31
3.6.2 Type of Protection...........................................................................................31
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