Spreadsheet: 466746d1466428711-workbook-opens-slowly-after-protecting-all-worksheets-sediment-basin-designer
Sheet: Riser Base & Emergency Spillway

 |  |  |  |  |  |  | SEDIMENT BASIN DESIGN
 |  |  |  |  |  |  | Project Information
 |  |  |  |  |  |  |  |  | Project Number: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Date:
 |  |  |  |  |  |  |  |  | PI Number: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Designer:
 |  |  |  |  |  |  |  |  | County: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Note:
 |  |  |  |  |  |  | POND DESIGN
 |  |  |  |  |  |  | Concrete Riser Base
 |  |  |  |  |  |  |  |  | 3. Riser Base thickness, B ……………………………………………………………………………………………….. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.5
 |  |  |  |  |  |  |  |  | 4. Required Surface Area = Total Volume/B ………………………………………………………………………
 |  |  |  |  |  |  |  |  | 5. Length of Riser Base, assuming square base ……………………………………………………………………
 |  |  |  |  |  |  |  |  | 6. [NAME] of Riser Base, assuming square base ………………………………………………………………..
 |  |  |  |  |  |  | Emergency Spillway
 |  |  |  |  |  |  |  |  | 1. Minimum emergency spillway capacity, [NAME] ………………………………………………………………….
 |  |  |  |  |  |  |  |  | 2. Minimum emergency spillway crest elevation …………………………………………………………….
 |  |  |  |  |  |  |  |  | 3.  Emergency Spillway Design: Select an option below
 |  |  |  |  |  |  |  |  |  |  |  |  |  | Stage Height ………………………………………………………………………………………………………………………………………………..
 |  |  |  |  |  |  |  |  |  |  |  |  |  | [NAME] ……………………………………………………………………………………………………………………………………
 |  |  |  |  |  |  |  |  |  |  |  |  |  | Velocity ……………………………………………………………………………………………………………………………………………………….
 |  |  |  |  |  |  |  |  |  |  |  |  |  | Slope ………………………………………………………………………………………………………………………………………
 |  |  |  |  |  |  |  |  | 4. Entrance Channel Slope, [NAME] ……………………………………………………………………………………………
 |  |  |  |  |  |  |  |  | 5. Exit Channel Slope, So …………………………………………………………………………………………………..
 |  |  |  |  |  |  |  |  |  |  |  |  | If So is steeper than [NAME], then the velocity in the exit channel will increase
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | a) Calculate exit velocity (Vo)
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ( |  | So |  |  | ) |  | 0.3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ( |  |  |  |  |  |  |  |  |  | ) |  | 0.3
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Vo = |  |  |  |  | V |  |  | * |  |  |  |  |  |  |  |  |  |  |  |  | = |  |  |  |  |  |  |  |  |  |  |  |  |  | * |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Vo =
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | S
 |  |  |  |  |  |  |  |  |  |  |  |  | Refer to Channel Stabilization (Ch) to determine the proper lining for the emergency spillway
 |  |  |  |  |  |  |  |  | 6. Recommended Channel Stabilization …………………………………………………………………………….
 |  |  |  |  |  |  |  |  | 7. High water elevation ………………………………………………………………………………………………………
 |  |  |  |  |  |  |  |  | 8. Elevation of Top of Dam …………………………………………………………………………………………………
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Page 6 of 7