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Braintree Weymouth Pump Station

Project Highlights:
  • Drove Sheeting Piles
  • 75’ Length 480 lf (perimeter)
  • 60’ Length 175 lf (perimeter)
  • 30’ to 48’ in depth of excavation
  • 20,000 cy Cast in Place Concrete
  • Disposal of Contaminated Soils
  • Dewatering within 50’ of Shore Line


This MWRA pump station links the Weymouth Relief Interceptor to the Intermediate Pump Station having the capacity for pumping 45 million-gallons of waste water per day to the Fore River Staging Area and then to Nut Island headworks.

The earth support system covered a 655-foot perimeter of steel sheeting driven approximately 50 feet from the shore line. The excavation ranged from 30 to 48 feet in depth with 3 levels of wales, cross-struts and corner bracing.

The pump station work included cast in place foundation, masonry, structural steel, roofing, ceramic tile, terrazzo flooring, grit and screening removal equipment, pumps, odor control system, plumbing , HVAC and electrical. The building has a brick fascia with CMU interior walls and a slate roof

Contract value: $46,277,609.