Due to limitations in the highway in Port Deposit, including a steep hill and a low railroad bridge, the state highway has a truck bypass that uses MD 275, MD 276, and US 1 through Woodlawn and Rising Sun to connect Interstate 95 (I-95) with US 222 in Conowingo.
PA 662 heads northwest through agricultural areas prior to reaching the intersection with US 222 in the community of Moselem Springs.
U.S. Route 66 | U.S. Route 1 | U.S. Route 6 | U.S. Route 101 | Route 66 | U.S. Route 30 | New Jersey Route 4 | European route E65 | U.S. Route 40 | California State Route 1 | U.S. Route 1 in Maine | Pennsylvania Route 309 | European route E18 | U.S. Route 23 | European route E4 | U.S. Route 9 in New York | U.S. Route 11 | Pennsylvania Route 82 | European route E70 | U.S. Route 90 | U.S. Route 75 | U.S. Route 61 | U.S. Route 60 | Pennsylvania Route 73 | New York State Route 32 | European route E55 | U.S. Route 80 | U.S. Route 71 | U.S. Route 51 | U.S. Route 22 |
The township's numbered routes are Route 10, Interstate 176, U.S. Route 222, U.S. 222 Business (Lancaster Pike), Route 625, and Route 724.
Main east-to-west roads include U.S. Route 222 (which interchanges with Interstate 78/Highway 309 in the extreme north,) Lower Macungie Road, and Mountain Road in the south.
The route runs from U.S. Route 222 (US 222) in Kutztown north to PA 143 in Albany Township.