Power Plant Construction and QA/QC Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Engineering Technology Division

2 Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Overview Dams are Potential Storage Devices Design Based on Water Pressure – 33 ft = 14.7 psi Keys - Head (height) and Water Quantity Material – Dependent on Type and Head Spillways – excess water – prevent overtopping Water Conductors – Piping or Penstock Power House – Electric Generators

3 Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Dam Types Roller Compacted Concrete Concrete Gravity Buttress Rockfill Earth Arch

4 Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Spillways Overflow Side Channel Chutes Tunnel Siphon

5 Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Water Conductors Underground Timber Lining Steel Pipe Concrete Concrete Lining Bare Rock

6 Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Power Houses Contain all the equipment to generate electrical power Surface Type Sub Surface Type

7 Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Power Houses Integral Intake Conventional

8 Section 7.2 – Dams, Spillways, Water Conductors and Power Houses Pressure

9 Questions? Section 7.2 – Dams, Spillways, Water Conductors and Power Houses