DuBois & King provided multidiscipline services for a water line improvement project at Windy Acres Cooperative, a manufactured home park in Charlestown, New Hampshire. Project included coordination with park board members and funding agency. Water line replacements were performed along First and Second Streets for a total of 1,650 lf of replaced line. Original mains were 2-inch and replacement mains were 4-inch PVC C900. Design involved review of a complex series of conflicting utilities and considered several alternatives. Services included topographic survey, conceptual plan layout of proposed water line, preparation of final construction documents, permitting, construction specifications, and bid and construction phase services.

D&K engineers established an aggressive project schedule to deliver the design within a very short time frame in order to meet owner objectives for late fall construction. This was an ARRA-funded project with a limited budget. Successful delivery of the design on time and bid documents with strategic bid alternatives allowed the owner to construct all aspects of the project.

Preliminary engineering study, final design, and bid and construction services for this major improvement to the Williamstown water system. The project included construction of a single chamber, pretensioned, precast concrete, circular 675,000-gallon storage tank, draining and removal of existing reservoirs from service, interconnecting piping to utilize existing well pumps, and connection to existing distribution system. New storage tank was sited to boost water pressure to the upper portion of the distribution system, including the high school. To avoid excessive pressures in the lower portion of the distribution system, two pressure zones were created using strategically located pressure reducing valve stations.

Services included topographic survey, subsurface exploration, final design and specifications, hydraulic modeling of the distribution system, permitting, cost estimating, bid phase and construction phase services, and project meetings. Special services include documentation to the Water Supply Division and applications for State Revolving Funds.