The gate we see and use today is the work of Sulieman the Magnificent, from the 16th
century after the conquest of the Ottomans. Beneath it are remains of the earlier Roman and
Herodian gateways and some suggestions of remains from much earlier periods. It is likely
that the Hadrianic gate, from the 2nd century CE, of which we have considerable
archæological evidence, was free-standing and not a part of the wall, making it
resemble very much the "Triumphal Arch" idea so beloved of monumental Roman society and
architecture; this would sit well with a possible eastern approach to the city wall, or at
least a market place, where, in today's Via Dolorosa we have the remains of another
"Triumphal Arch" - that which has become known as the "Ecce Homo" arch. During the late
Roman, on into the Byzantine period - especially the reign of Justinian (6th century), the
Damascus Gate led through to the Cardus Maximus and Cardus Secundus, two of
the major streets in developed Byzantine cities.
David Roberts' lithograph shows the gate as it was during his visit in the middle of the
19th century. Much of what we know today was completely hidden from his eyes but, as usual,
he manages to convey with realism and elegance the atmosphere of his times.
You may like to compare David Roberts' lithograph with a more "recent" rendering. If you look closely you can see in the shadows, the arched, eastern opening to the Hadrianic entrance below level to the left of the foot-bridge which was hidden from David Roberts.