| | Flow Control to Manage River Ice |
| | 1,31 | | MB |
| | 32 | | stron |
| | 6352 | | ID | Cold Regions Research and Engineering Laboratory |
| | 1999 | | rok |
| | CONTENTS |
| | Preface ii |
| | Introduction . 1 |
| | Early winter ice-formation period 2 |
| | Hydraulic conditions for ice formation 2 |
| | Flow cutbacks for ice formation at hydroelectric projects . 3 |
| | Early winter flow regulation to control freezeup ice jam flooding 6 |
| | Early winter flow control for winter navigation . 6 |
| | Midwinter period . 8 |
| | Midwinter flow manipulation: Hydroelectric production and ice jam flood control . 9 |
| | Midwinter flow control and winter navigation 11 |
| | Midwinter flow regulation: Water supply and ice jam formation . 13 |
| | Midwinter flow regulation and fish habitat 14 |
| | Midwinter reservoir levels and ice jam flooding 15 |
| | Breakup period . 15 |
| | Controlling ice jam location . 15 |
| | Controlling timing of breakup . 17 |
| | Passing ice at structures during extreme events . 17 |
| | Conclusions . 20 |
| | Ice-formation period 20 |
| | Midwinter period . 20 |
| | Breakup period . 23 |
| | Literature cited 23 |
| | Abstract 27 |