CONTENT EXPIRES: December 31, 2027 

This presentation explores DC Water's first progressive design-build (PDB) project through a panel discussion of Design-Build Institute of America (DBIA) Best Practices (BPs). The panel includes four perspectives: Owner, OA, Designer, and Builder. The Owner will start with a description of the Manhole 31 Replacement Project. The project includes reconstruction of an existing structure that conveys 90mgd. Challenges include poor asset condition, requirement to maintain operation, and an environmentally sensitive site. Challenges were best managed with early collaboration that only design-build offers. Construction included three cast-in-place structures (up to 37’x24’ and 55’ deep) and vortex energy dissipation to reduce odor and corrosion. The presentation will highlight project characteristics that led the owner to choose PDB. Following the project description, each panelist will discuss the application of DBIA BPs from their perspective. Topics includes: 1) procurement processes promoting collaboration and emphasizing design-build experience, 2) approaches to risk/cost management and use of allowances/contingencies, 3) value of training, 4) facilitating timely responses, and 5) intentional collaboration protocols. As DC Water's first PDB, the MH31 project exemplified advantages of Design-Build Done Right. Following this success, attendees will hear why DC Water is transitioning their program to collaborative delivery.