HDD-30-inch-forcemain-replacement_case_study

Fusible PVC® pipe used for HDD crossing of the Halifax River

An estimated 71,300 people live over 90 square miles in Daytona Beach, located in eastern Volusia County, Florida. All of the sanitary sewer flow from the city’s beachside service area flows through an existing 24-inch subaqueous force main, crossing the Halifax River to the city’s Bethune Point wastewater treatment facility. In 2016, a capacity analysis report recommended replacing the aging force main to provide significantly more flow capacity and improved reliability.

The city hired McKim & Creed, Inc. to design the replacement force main. Initially, five different alignments, each involving the installation of a 30-inch force main using horizontal directional drilling (HDD), were considered for the Halifax River crossing.

Click on the image to the left to read the case study of this project, which used 30-inch DR 21 Fusible PVC® pipe, based on allowable safe pull force, hydraulic capacity (flow area and internal pressure capability), critical buckling capacity and compatibility with ductile iron fittings.