Harmony Grove Village Reclamation Plant

La Jolla Centre III Deep Sewer

Harmony Grove Village

San Diego Zoo Stormwater Equalization Tank


San Diego Zoo Stormwater Equalization Tank

Contracted By   San Diego Zoological Society
Private Project   
Dates Work Performed   July 2012 - August 2012
Location   San Diego, California

Scope of Work

  • Construct a new system to regulate runoff water
  • Mass excavation of over 25' in depth for the installation of 380,--- gallon storm water equalization tank structure
  • 1,500 cy of poured in place concrete
  • Various sewer, storm drain, and dry utility improvements
  • 4,227 sq ft of soldier pile shoring wall
  • 2,000 sq ft of cast in place retaining wall
  • Grading
  • Onsite and off site asphalt paving
  • Electrical control modifications
  • Landscape improvements

Unique Aspects

  • The Equalization Tank is a custom structure, desinged to meet the specific storm water runoff needs of the San Diego Zoo and a portion of Balboa Park
  • Wide variety of requirements, including deep excavations, restrictive working conditions, design-build aspects
  • During excavation, an intact fossil of a 3 million year old juvenile baleen whale was discovered. The San Diego Natural History museum heralds this discovery as the most significant find of this type in the last 60 years