The city was divided into two parts: a lower city, extending over most of the mound; and an upper city the acropolis on the higher, northeastern part of the mound. During the 9th century BCE, the acropolis was surrounded by a massive, fortified wall with a gate, constructed of large basalt stones. The 6-m.-wide wall, together with buttresses projecting from both sides, reached a width of 8 m.
The city gate complex discovered on the eastern side of the tel consisted of an outer and an inner gateway. The outer gateway included a passageway between two massive towers; thus far, only the western tower, measuring 10 x 8 m., has been excavated. In the outer gateway, a 30-m.-long walkway paved with flat basalt stones led to the “four-room” inner gatehouse, typical of this period and measuring 35 x 17.5 m. It is preserved to an impressive height of 3 m. This is the largest city gate of the biblical period excavated in Israel. It is constructed of large basalt stones, some slightly trimmed, laid in courses. Above the stone structure stood a brick superstructure, both entirely coated with light plaster. Two huge projecting towers, 10 x 6 m. each, protected the entrance to the gate. The threshold of the gate consisted of large basalt stones with depressions that served as door-hinge sockets.