WHB Engineers

Padre Dam Municipal Water District

Construction Management, Electrical Engineering

The City of The ESA secondary connection project was the largest capital improvement investment in Padre Dam history, increasing water supply, ensuring water reliability in
cases of natural disaster, and reducing reliance on imported water for 30,0000 residents living in the District’s ESA. WHB Engineers operating company, Brady, provided construction management and inspection services for this complex potable water infrastructure project.

This project included a potable water pump station capable of supplying 9 million gallons of potable water to the District’s Eastern Service Area and assisted the District in achieving its strategic goals by increasing water supply and ensuring greater water reliability. The project scope included the construction of the following primary facilities:

  • Supply pipeline – 1000 LF of 20-inch CML&C Stl

  • Discharge pipeline – 6100 LF of 20-inch CML&C St

  • SDCWA flow control facility and masonry building

  • 1.75 MG circular pre-stressed concrete reservoir (partially buried)

  • 9 MGD pump station with vertical turbine pumps housed in a masonry building

  • Jack and Bore 364 LF of 20-inch CML&C Stl pipe inside 48-inch casing under Interstate 8

  • Bio-retention facility including wet well for stormwater and reservoir drain water

  • One concrete retaining wall and two masonry retaining walls

  • Viewside Lane work included the replacement of the existing 8-inch HDPE water main that crosses under I-8.

  • El Capitan Pipeline Valve & Vault Removal work included removal of an existing 30-inch valve along the District’s 36-inch diameter El Capitan pipeline.

We successfully coordinated activities with numerous agencies and stakeholders that were heavily involved in the project, including Caltrans, County of San Diego, San Diego County Water Authority, Helix Water District, SDG&E, Viejas Tribal Cultural Monitors, a commercial shopping center developer, and residents with homes that border the project site(s).  

  • Extensive Factory Inspection
  • Long lead procurement
  • Standby generator & ATS
  • Surge Tank
  • Control Valve & Vault
  • PRV & Vault
  • Tribal Cultural Monitoring
  • Security Fencing
  • Security System
  • HVAC
  • Sound Wall/Monitoring
  • Start-Up & Commissioning
  • Electrical & I&C
  • Cathodic Protection
  • PCC/HMA Pavement
  • Extensive Field Inspection & Testing

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