AMP: 99 Location: SH-16 and SH-44, Ada Cty Reassurance shield as 16 continues. This segment of road opened in August 2014 as a 65 MPH expressway over the Boise River between 44 and 20/26, and is the first new crossing over the Boise in over 20 years. While the road right now seems pointless, it … Continue reading Idaho State Highway 16, SH-44 to US-20/US-26