US-101 South/CA-116 East at Exit 472B - CA-116 East/Sonoma/Napa. Approaching Exit 472A - Petaluma Blvd South. This is the southern end of the CA-116/US-101 overlap.
US-101 South/CA-116 East - Exit 472B
US-101 South/CA-116 East approaching Exit 472B - CA-116 East/Napa/Sonoma. This is the southern end of the CA-116/US-101 overlap.