The road measures 19.34 miles long and would take a car obeying speed limits 35 minutes to travel its length.
The B3157 is a B Road and is located in the Zone 3 Highways Region.
This is a true long-distance route, journeying through numerous towns like BRIDPORT, West Bay, Burton Bradstock, Swyre, West Bexington, Puncknowle, Abbotsbury, Portesham, Chickerell, Granby Industrial Estate, and WEYMOUTH.
The road is located entirely within Dorset.