The old gate - Either the modern Damascus gate, the main entrance to the city on the north side; or a gate a little further eastward.
Related Commentaries of Nehemiah 3:6
Nehemiah 3:6
6 Moreover the old gate repaired Jehoiada the son of Paseah, and Meshullam the son of Besodeiah; they laid the beams thereof, and set up the doors thereof, and the locks thereof, and the bars thereof.