A new alignment of US 206 was partially completed through Hillsborough in 2015 to bypass the congested stretch of the road .
US 206 is the 1.66 - mile ( 2.67 km ) US 206 Bypass .
A new alignment of US 206 , the 1.66 - mile ( 2.67 km ) US 206 Bypass , was partially completed through Hillsborough in 2015 to bypass the congested stretch of the road .