Reservoir Management

Contents About the editor ix
About the contributors xi
Glossary 1

1 Introduction to reservoirs 11
1.1 Introduction 11
1.2 History 12
1.3 Background to legislation 13
1.4 Reservoir types 15
1.5 Summary of reservoir functions 16
1.6 Reservoir functions in more detail 18
1.7 Reservoir operating characteristics 25
Note 29
References 29

2 Roles and responsibilities 31
With contributions from James Ashworth,
Kieran Brazier, Roger Lewis and Mat O’Brien
2.1 Introduction 31
2.2 Regulatory authorities 31
2.3 The Reservoirs Committee 33
2.4 Owners, undertakers and reservoir managers 36
2.5 Asset managers 37
2.6 Operatives, reservoir keepers, maintenance
staff 38
2.7 Consultants 38
2.8 Summary 39
Notes 39
References 39

3 Understanding water 41
With contributions from Jon Scott, Lisa Stewart and
Lei Yang
3.1 Water Science 41
3.2 Hydrology 42
3.3 Reservoir water quality 55
3.4 Downstream water quality and impacts 60
3.5 Sedimentation 63
References 69

4 Principles features of dams and reservoirs 71
With contributions from David Brown, Neil Kempton
and Viktor Pavlov
4.1 Basic requirements of dams 71
4.2 Dam types and materials 76
4.3 Spillways 82
4.4 Conduits 100
References 123

5 Mechanical and electrical equipment 125
With contributions from Ken Grubb and Russ Digby
5.1 Introduction 125
5.2 Inspection and testing 126
5.3 Maintenance 138
5.4 Repairs and refurbishment 139
References 149

6 Ecology, amenity and recreation 151
6.1 Reservoirs as an ecological resource 151
6.2 Amenity and recreation 162
References 177

7 Keeping reservoirs safe and fit for purpose 179
With contributions from Richard Groom, Ian Hope
and Sam Tudor
7.1 Responsibilities for keeping reservoirs safe 179
7.2 Record-keeping and interpretation 181
7.3 Data collection 184
7.4 Responsibilities for maintenance 195
7.5 Impact of freezing conditions 205
7.6 Reservoir safety – types of risk 209
7.7 Public safety around reservoirs 210
7.8 Asset security 216
References 221

8 Incidents and emergencies 223
With contributions from Neil Kempton and
David Windsor
8.1 Potential failures 223
8.2 Being prepared 230
8.3 Dealing with an emergency 250
Note 261
References 261

9 Major works – dredging and decommissioning 263
With contributions from Richard Groom and
Bill Gush
9.1 Dealing with sediment 263
9.2 Decommissioning a reservoir 278
Notes 290
References 290

Appendix A Solar energy farms 291
With contributions from Clare Pailing and
Bryn Philpott
A.1. Introduction 291
A.2. Economic considerations 291
A.3. Consents 292
A.4. Design issues 293
A.5. Construction issues 295
A.6. Environmental impact 296
References 296

Appendix B A surveying overview 297
With contributions from Richard Groom
B.1. Introduction 297
B.2. Geospatial frameworks 298
B.3. Ordnance Survey 298
B.4. Survey controls 299
B.5. Survey methods 300
B.6. Site surveying 304
B.9. Who carries out dimensional surveys? 310
Note 310
References 310

Appendix C Principal organisations for
reservoirs 313

Index 315