“Engineered” Logjams Means They are Carefully Analyzed and Designed for a Factor of Safety and a Specified Design Life

• Size, position, and spacing of ELJs based on:

  • Hydraulic analysis of flow behavior near structure(s)
  • Channel response over time

• ELJ architecture & materials based on:

  • Scour analysis
  • Structural stability analysis
  • Material design life analysis

• All structures designed to emulate nature and provide maximum possible benefits to restoring native habitat

Notes: