The state highway crosses Broadway Branch before rejoining the rail line immediately before the intersection with River Bridge Road, where the highway enters the town of Henderson. After leaving Henderson, MD 311 veers away from the rail line and crosses Cold Spring Branch. The state highway passes through a mix of farms and forests as it approaches the town of Marydel.
The state highway passes over Broadway Branch before rejoining the rail line just before reaching River Bridge Road, where it enters Henderson. After leaving Henderson, MD 311 diverges from the rail line and crosses Cold Spring Branch. The highway travels through a mix of farms and forests as it approaches Marydel.