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