I-15 North - Exit 178
I-15 north at Exit 178 - US-50 West/Holden. US-50 joins I-15 northbound to Scipio.
I-15 South - Exit 178
I-15 south approaching Exit 178 - US-50 West/Holden. US-50 leaves I-15 southbound here.
I-15 South - Exit 178
I-15 south at Exit 178 - US-50 West/Holden. US-50 west leaves I-15 southbound here. US-50 joins I-15 northbound to Scipio.