Water Design-Build Council (WDBC) research confirms a significant increase in growth in the use of collaborative-delivery methods for water and wastewater projects in the US. For certain public owners, including some cities, counties, districts, agencies, special purpose entities, and states, where historically only design-bid-build (DBB) has been utilized for implementing capital works projects, enabling legislation modifications may be required so these public agencies can utilize collaborative delivery methods such as fixed-price design-build (FPDB), progressive design-build (PDB), and construction management at-risk (CMAR).

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