Abstract:
San Francisco Public Utilities Commission (SFPUC) is a department of the city that provides drinking water and wastewater services to San Francisco. The $2 Billion Biosolids Digester Facilities Project (BDFP) will upgrade and modernize the existing facilities at their Southeast Treatment Plant (SEP), which services over 80% of the city’ s wastewater, by reducing odors in the surrounding neighborhoods, designing for future earthquakes and sea level rise, and ensuring operational redundancy and efficiency for decades to come.
The project required participation of Local Business Enterprises (LBE) and Disadvantage Business Enterprises (DBE) therefore helping the local economy and its residents.
SFPUC decided very early to use an alternate delivery method to utilize the expertise of the entire construction industry by engaging Trade Core partner at a very early stage in the design process. Malcolm Drilling was chosen to be the Foundation Trade Core partner after an intense pre-qualification process. Our expertise for various deep foundation and support of excavation methods did help the designer to optimize two large excavations in difficult ground conditions and in close vicinity to an active railroad. Our scope of work included the installation of Cased Drilled Shafts, Continuous Flight Auger Piles (CFA), Cutter Soil Mixing (CSM), Diaphragm Walls, Tie-Downs, Tiebacks, Internal Bracing, Mass Excavation, Shotcrete, Demolition and Dewatering. We were also in charge for site access and the required logistic to handle up to 80 concrete trucks coming into the site and the same amount of spoil trucks leaving the site with only one entry and one exit point.
This paper will highlight the benefits of early involvement of a specialty contractor in a very complex project. The interaction with the owner’ s design and management team during a pre-construction phase enabled the project team to apply the most modern and efficient construction techniques proposed by the contractor. Significant cost and schedule savings made this a very successful project for all involved parties.
Proposed Speakers
- Robert Small, P.E. – Malcolm Drilling – Project Manager
- Ihab Allam, P.E. – Malcolm Drilling – Project Manager
- Peter Faust – Malcolm Drilling – VP Business Development