Since 1974, a bypass has been planned for the congested part of US 206 through Hillsborough. In 2002, the NJDOT modified plans for the bypass. The bypass is to be mostly four lanes wide and run to the east of Hillsborough, with the southernmost portion only being two lanes; one interchange was planned with CR 514. The road is to meet a Smart Growth goal by preserving land and eliminating two planned interchanges that would have increased congestion. In July 2009, it was announced that construction of the US 206 Hillsborough bypass, which is projected to cost $148 million, would start in 2010. On June 24, 2010, a contract was given to Carbro Constructors Corporation to build the first phase between CR 514 and Hillsborough Road. Construction on this portion, planned to cost $43 million, began on August 18, 2010 and opened on October 28, 2013. This section is currently designated US 206 Bypass. In early 2015, work on grading and utility relocation for the ends of the bypass was slated to be completed. Work on constructing the northern and southern ends of the US 206 bypass of Hillsborough was originally planned to begin in early 2017. On April 13, 2018, construction began on the final phase to build the northern and southern ends of the bypass. The final phase of the Hillsborough bypass, which is projected to cost $36.6 million and be funded through state and federal money, is expected to be complete by late 2020. The Hillsborough Bypass is named for Peter J. Biondi, a former Assemblyman and Hillsborough mayor who died in 2011.