Of the outlet of the Straits ready for any move of the Allies in that quarter; but, thanks to a system of jetties erected on either shore at the upper end of the Narrows, and to improved communications, troops could be shifted from side to side of the waterway very rapidly.
Or more by dredging and by the construction of jetties and an immense dam, works which were begun by the state in 1823 but from 1828 were carried on from time to time by the national government.
Daux, discovered the jetties and the moles of the commercial harbour, and the line of the military harbour (Cothon); both harbours, which were mainly artificial, are entirely silted up. There remains a fragment of the fortifications of the Punic town, which had a total length of 6410 metres, and remains of the substructions of the Byzantine acropolis, of the circus, the theatre, the water cisterns, and of other buildings, notably the interesting Byzantine basilica which is now used as an Arab cafe (Kahwat-el-Kubba).
Over the sill at high water of spring tides; the construction of new jetties at the entrance to the tidal basin and at the north wall; the establishment of a coal wharf with hydraulic appliances; a torpedo range in the harbour; the erection of various buildings such as torpedo and gun-mounting stores, electrical shops and numerous subsidiary works; and extensive dredging of the harbour to increase the berthing accommodation for the fleet.
In severe storms the water near shore is filled with sand, which is deposited where the currents are checked around the ends of jetties in such a way as to form bars out into the lake across improved channels.
The present outer harbour covers about 300 acres and is formed by two converging jetties and a breakwater.
The railway company has constructed jetties at which steamers can discharge their cargo.
At the same period (1873) the building of the existing jetties was undertaken.
If there had been no fighting daring these autumn months worthy of mention, much creditable work had been carried out by the invaders in respect to developing communications and to improving jetties and landing-places, especially at Suvla.
Two long jetties or breakwaters have now been constructed, about 350 acres of harbour area have been dredged to a depth of 30 ft., and two wharves of steel and concrete, one 600 ft.