This route is believed to have been in existence since 1934. A previous alignment of State Highway 44 continued eastward down State Street past Glenwood Street further into downtownBoise. The highway turned south onto 23rd Street and continued several blocks to Fairview Avenue which, at the time, was also US-20, US-26 and US-30. State Highway 44 was also cosigned with State Highway 55 from Horseshoe Bend Road east to its terminus at Fairview Ave in Boise. There, SH-55 turned west and followed the US-20/26/30 complex to Interstate 184.
Future
A study is currently being conducted by ITD and Compass to determine the future transportation needs of this facility and to preserve the right of way for possible future widening of the highway and bypass alternatives through the cities of Middleton and Star.