AMP: 35 Location: Main St and I-15, Lehi SR-73 resumes just west of its junction with I-15. AMP: 35 Location: Main St and I-15, Lehi Exit right for I-15 south. AMP: 35 Location: Main St and I-15, Lehi Keep left for I-15 north. SR-73 continues to US-89. E to US-89 S to SR-145, N to … Continue reading Utah State Route 73, 850 E to I-15