Idaho State Highway 33

State Highway 33
SH-33 highlighted in red
Route information
Maintained by ITD
Length	139.934 mi[1] (225.202 km)
Major junctions
West end	US 20 / US 26 near Arco
Major intersections	I-15 near Terreton US 20 in Rexburg
East end	WYO 22 at the Wyoming state line
Location
Country	United States
State	Idaho
Counties	Butte, Jefferson, Madison, Fremont, Teton
Highway system
Idaho State Highway System Interstate US State
← SH-32 → SH-34

State Highway 33 (SH-33) is a state highway in eastern Idaho, spanning from U.S. Highway 20 (US 20) and US 26 to Wyoming Highway 22 (WYO 22) at the state line.

SH-33 begins at an intersection with US 20/US 26 in Butte County. It proceeds northwesterly, passing through rural area of the Idaho National Laboratory, before bending and traveling northward. The highway continues northward until intersecting with the Little Lost River Highway, and turning east. The road proceeds eastward, before intersecting SH-22.

After continuing eastward, the roadway bends northwest for a short distance, before bending back eastward. The route continues eastward, passing the Mud Lake Airport, and meeting SH-28. The roadway continues eastward, continuing through rural area, before reaching an interchange with Interstate 15 (I-15). The highway proceeds eastward, passing over the Henrys Fork, and continuing eastward.

The road enters Rexburg, reaching an interchange with US 20. The route continues eastward into Rexburg as Main Street before turning northward on 2nd East. The highway proceeds northward out of Rexburg, before bending northeast, traveling parallel to US 20, and the mileage posts reflect the mileage of the old US 20 routing. The roadway bends eastward, passing through Sugar City, before turning north. The route bends back eastward, restarting its mileage at exactly 100 miles, and proceeds to the community of Teton.

The highway continues east, passing through Newdale, and continuing through rural area. It continues, bending southeast, before bending northeastward, and afterward, bending back southeast. The highway travels east, intersecting SH-32, before turning south. The route passes the Driggs-Reed Memorial Airport and enters the city of Driggs. The road proceeds southward through Driggs, intersecting SH-31 in the community of Victor, and bending southeast. As the Teton Pass Highway, it continues to its eastern termination at the Wyoming state line, at an approximate elevation of 6,690 feet (2,040 m) above sea level.^[2]

WYO 22 continues eastward, climbing over Teton Pass at 8,431 feet (2,570 m), then on to Jackson.

County	Location	mi[1]	km	Destinations	Notes
Butte	​	0.000	0.000	US 20 / US 26 – Blackfoot, Arco, Boise	Western terminus
	Howe	15.929	25.635	Little Lost River Highway north – Goldburg	Southern terminus of the Little Lost River Hwy.
	​	24.680	39.719	SH-22 north – Dubois	Southern terminus of SH-22
Jefferson	​	43.620	70.200	SH-28 north (Sacajawea Historic Byway north) – Salmon	Southern terminus of SH-28
	Sage Junction	58.861	94.728	I-15 – Butte, Idaho Falls	Southern terminus of Sacajawea Historic Bwy.; exit 143 on I-15
Madison	Rexburg	78.190	125.835	US 20 – St. Anthony, Idaho Falls, Pocatello	Exit 333 on US-20
	Sugar City	84.850	136.553	To US 20 – Rexburg, St. Anthony	Access via unsigned SH-33 Spur (9th North west)
Fremont	No major junctions
Madison	No major junctions
Teton	Tetonia	115.920	186.555	SH-32 – Ashton	Southern terminus of SH-32
	Victor	134.472	216.412	SH-31 west (Center Street) – Swan Valley, Idaho Falls	Eastern terminus of SH-31
	​	139.934	225.202	WYO 22 east (Teton Pass Highway) – Jackson	Continuation into Wyoming
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

• U.S. Roads portal

• Media related to Idaho State Highway 33 at Wikimedia Commons