Water Operations And Maintenance Bulletins

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Dam:
Breaching of Waddell Dam 183 Failure--St. Francis Dam--Causes, 70 Years Later 180 Gate Failure - Case Histories 202 Overtopping Protection 174 Safety: Seepage and Piping 176 Safety Monitoring Development 175 Shake Table Model - Koyna Dam 191 Shasta Dam Temperature Control Device 187 Tolt Dam Advance Warning System 172 When is Safe Enough? 152
Dam Operators Training 110
Dam Repair 152
Willow Creek Outlet Repair Cured in Place 187
Radial Gate Grease Fittings 202
Swan Lake Arch Dam - Conduit 203
Data Cards:
Equipment Servicing 15
Data Collection:
Manual (Electronic) Recording 169
Dataloggers:
Electronic Fail in Steel Recording Wells 153
Daylight Movies:
Projection Booth 7
Deep-Well Pumps:
Drive Shaft Support 20 Moving 1
Deflectors:
Trash 4 Trash and Log Boom 4 Weed 97 Weed, Adjustable Pipe 30
Deicing:
Compressed Air 4 Panel Wall Heaters (Ice Removal) 172
Delivery of Water:
(See Water Delivery)
Demossing:
Buckets 97 Buckets, Gradall Type 4 Canal, Demossing, Logging Tractors 72 Moss Fork 27 Scoops 37
Desirable Vegetation for Weed Control:
Accessory Equipment 97 Seed 97 Seed Covering 97 Seeders, Broadcast Type 97 Seeders, Drill Type 97 Seeders, Gravity-Flow Type 97 Seeders, Hydro 97 Seeding 97 Specifications 97
Detectors:
Bearing Noise 3
Dewatering Facilities:
Underwater Inspections by Engineer-Diver 123
Dewatering Using Floating Bulkhead Proves Flexible, Reusable, and Cost Effective 162
Diesel Engines:
Fuel Facts 24 Maintenance 61 Servicing Mistakes 26 Starting in Cold Weather 31
Diesel Fuels:
Basic Facts 24
Differential Float Control 71
Digest Statements:
Embankment Upstream Slope Failure - San Luis Dam 135 Erosion Below Spillway - Bartlett Dam 139 Foundation Seepage - Twin Buttes Dam 140 Spillway Deterioration - Big Sandy Dam 137
Dipnet:
Animal Removal From Canals 12
Dipstick:
Modification for Engines 15
Discharge Coefficients 117
Discipline:
Employees 56
Disks:
Boom, Weed Cleaning 97 Land Weed Control 97 Tandem, Cable Controlled 17
Dispensers:
Chemical and Gypsum, Automatic 28
Disposal:
Motor Oil, Used 25 Sodium-Filled Valves 9 Waste Oil 5 Weeds (See Weed Disposal)
Disposal Channel:
Maintenance 34
Dissipators:
Energy of Flowing Water 14
Distribution Systems:
Controls, Electronic 22 Distributor, Asphalt 6
Ditchbank Seeding: 7
(See Weed Control)
Ditchers:
Hitch for Tractor 19 New Type 57 Tractor-Mounted, Front-End, Single-Moldboard 20 Tractor-Mounted, Front-End, "V" and Double Moldboards 20 Tractor-Mounted, Rear-End "V" 25 Tractor-Pulled, Hydraulic-Operated 17 Wizards 123
Ditches:
(See Canals and Laterals)
Ditchrider Handbook:
Columbia Basin Project 50
Ditchrider Trainee Program:
Columbia Basin Project 50
Diversion Dams:
Boat Boom 83 Remote Control of Outlets 32 Skimmer Gates 42
Diverters:
Weed 42, 97
Diving:
Bridge Diving Inspection 168
Docks:
Protection 33
Dog Catcher:
Canals 29
Doors:
Servicing Steel, Roll-Up Doors 103 Vehicles, Latch Lubrication 62 Vehicles, Rattle Prevention 30
Dozer Blade Spreader Box 29
Draglines:
Fairlead Modification 17 Safety Boom Shield 27 Sidearm Attachment 6
Drags:
Aquatic Weeds 97, 97 Booms, Sidearm Type 6, 97 Brush 27 Notched Vee Disk 97
Drain Inlet Racks 106
Drain Tile:
Rodent Control Outlet Screen 30 Trenching Shield 2
Drainage:
Boost Yields, Reclaim Land 123 Dragline Sidearm Attachment 6 Manual 107 Nomenclature 107 O&M Standards 62, 107 Subsurface Drainage of Irrigated Lands 188, 190 Wicks - Salmon Lake Dam - Liquefaction 186, 198
Draining Pipelines:
Care Needed 34
Drains:
Channel Maintenance 21 Cleaning Foundation Type 33, 44, 194 Cleaning Surface Type 2 Clearing Closed Types 63 Flexible Pipe Toe Drains    197 Foundation Maintenance Methods 148, 194 Function of 107 Gravel Envelope Material Selection 88 Ochre (Iron) Clogged 113 Pipe, Filter Materials for 74 Rock Gabions 114 Siphon Blowoff 126 Stage Construction 80
Drawbars:
Lifting Arrangement 36
Dredges:
Bucket Raising Assembly 31 Drill Holes: Uniform 53 Modification 67
Drill Rig:
Analyze - Devise - Revise 91 San Luis Field Division's Problem and Solution 1
Drilling Jigs:
Check Guides and Headers 43
Drills:
Grass Seeding 7, 37 Portable for Gate Operation 12 Pressure Handle for Portable Type 34 Screwjack for 22
Drive Shafts:
Support, Deep-Well Pump 20
Drivers:
Ground Rod 25 Steel Rod or Post 53
Driving:
Gravel Road, Techniques 81 Hot Weather 125 Ice and Snow 58 Techniques, Skill, Safety    196 Winter Driving 133 Winter, Getting Ready for 82
Drop Structures:
Rocks and Flax-Straw 145 Slip-Form Chutes 86
Drought:
California Municipalities Battle Drought 161
Drought Assistance 1, 103
Drum and Barrel Truck 72
Drums:
Lifting Clamps 42
Dry Ice Not Cool 77
Dry Weeds:
Burners, LP Gas 97 Raking 30
Dummy Joints:
Vegetation Control 58
Dump Trucks:
Automatic Tailgate 34 Device to Prevent Accidental Dumpings 91 Handgrips 22 Safety Stops 22 Tailgate Quick Release 104
Dye, for Weed Control 63, 97
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Last Updated: 6/11/15