Idaho State Highway 39
State Highway 39 is a state highway in Power and Bingham counties in Idaho, United States, that connects Interstate 86/U.S. Route 30, northwest of American Falls with U.S. Route 26 in Collins.
Route description
Power County
SH-39 begins at a diamond interchange with I-86/US 30 northeast of American Falls.From its southern terminus SH-39 heads westerly as a three-lane road concurrently with Interstate 86 Business along Pocatello Avenue as it immediately passes by the southwestern edge of the American Falls Airport. SH-39/I-86 BL then turns slightly north, with Pocatello Avenue continuing straight to enter American Falls. Continuing west-northwest as a two-lane road SH-39/I-86 BL passes briefly north of the city limits before entering the city and promptly crossing Hillcrest Avenue.
After crossing Fort Hall Avenue at its next intersection SH-39/I-86 BL briefly leaves the city limits and curves along an overpass to head south-southwest and then re-enter the city limits to run along the northern edge of the city, parallel with the railroad tracks, and near the south shore of American Falls Reservoir. SH-39/I-86 BL's next intersection is a T intersection with the west end of Idaho Street.
From the western end of its concurrency with I-86 BL at Idaho Street, SH-39 widens to four lanes and curves to a nearly westerly heading and becomes a divided highway as it finally leaves the city limits of American Falls as it wraps about the southwestern edge of the American Falls Reservoir, begins running along the Aberdeen Highway, and crosses the Snake River on the American Falls Dam. SH-39 then narrows back to a two-lane road as it curves to head north along the southwestern edge of the reservoir in agricultural land. Briefly heading northeast, SH-39 passes northwest of the unincorporated community of [Fairview, Power County, Idaho|Power County, Idaho|Fairview]. Directly north of Fairview, and little under from its southern terminus, SH-39 leaves Power County and enters Bingham County.
Bingham County
After crossing the county line, SH-39 continues briefly northeast as the Aberdeen Highway before turning north. north of the county line, SH-39 reaches the city of Aberdeen. Immediately south of the city, SH-39 turns to head east along West 1800 South for about 7 blocks as it enters the city limits. SH-39 then turns north along South Main Street. After passing through Aberdeen as a five-lane road, SH-39 narrows back to a two-lane road, curves to head northwest, and leaves the city limits. Upon reaching South 2700 West, SH-39 turns to head north along that road for roughly, passing west of the unincorporated community of Fingal along the way. SH-39 then jogs northeast before continuing north along South 2600 West for about, passing west of the unincorporated community of Grandview along the way.About north of Aberdeen, SH-39 turns to head east along West 800 South. Approximately after turning east, SH-39 passes through the unincorporated community of Springfield. About east of Springfield, SH-39 turns to head north-northeast for just over, running east of, but parallel to a set of UP tracks, passing through the unincorporated communities of Pingree and Liberty and the census-designated place of Rockland along the way. Just north of Rockland, SH-39 turns to head east again and passes north of Thomas. After heading east for about SH-39 passes through the CDP of Riverside. Roughly east of Riverside, SH-39 has a slight jog to the north before reaching the unincorporated community of Collins. SH-39 then turns northeast and promptly reaches its northern terminus at a T intersection with US 26, near the Snake River and the western edge of Blackfoot.