PROJECT GOALS, ACHIEVEMENTS, AND BENEFITS

The Southeast Treatment Plant (SEP) is one of three wastewater treatment facilities owned and operated by the San Francisco Public Utilities Commission (SFPUC). The SEP treats 80% of the City of San Francisco’s wastewater. The SEP was originally commissioned in 1952 as a primary treatment plant and was upgraded to a secondary treatment plant in 1982 (secondary upgrade), which included the construction of a new preliminary treatment facility. In 1997, additional preliminary facilities were constructed to increase SEP wet weather capacity from 210 MGD to 250 MGD. The City is now implementing the 250 MGD New Headworks Project to consolidate preliminary facilities at SEP, to replace aging facilities, and to improve treatment efficiency to meet the Level of Service (LOS) Goals established by SFPUC.

McGovern McDonald Engineers (MME) delivered the structural design of four major components of the new Headworks Facility and provided constructability and risk management support. The tasks were to complete designs including the 95% and 100% design submittal, structural notes, plans, sections, and details. MME also reviewed and provided comments to draft technical specifications, provided the contract plans and drawings, updated drawing lists and specification lists, performed internal QC, and developed quantity takeoffs. MME worked with the engineer, the City, the contractor, and other teaming partners during the construction phase to respond to RFIs, complete design certifications, review submittals, conduct site visits, and review as-builts and change orders.

In addition to structural design, MME also provided constructability support. Throughout the development of the project, MME reviewed selected design submittals to provide technical input and quality oversight along with comments and recommendations on constructability. MME provided risk management expertise and support throughout the project, and coordinated with the Construction Manager/General Contractor through final design.