The state highway veers northwest and reduces to a four-lane undivided highway at Reservoir Road. MD 157 crosses Bear Creek on a drawbridge and expands to a four-lane divided highway that enters Dundalk. The state highway crosses over the CSX rail spur between Baltimore and Sparrows Point before reaching Merritt Boulevard.
The state highway changes direction, becoming a four-lane road at Reservoir Road. MD 157 crosses Bear Creek using a drawbridge and expands to a divided four-lane highway as it enters Dundalk. The highway then passes over the CSX rail line between Baltimore and Sparrows Point before reaching Merritt Boulevard.