Pyrmont. 



Glebe Island. 



...223 ft. ... 



195 ft. 4 in. 



... 40 ft. ^.. 



40 ft. 



... 7 ft. ... 



5 ft. 



;li, 80 ft. ... 



60 ft. 



...798 tons... 



650 tons. 



30 T. H. HOUGHTON. 



Mr. P. Allan, m. inst. c.b. They are similar in design, the 

 leading dimensions being: — 



Length over all ... 



Width of roadway 



Width of footpaths each 



Width of clear waterways each, 80 ft. 



Weight of swing 



As it has been decided to fill in that portion of Darling 

 Harbour above Bathurst. Street with spoil from the exca- 

 vations being made for the City Railway, Pyrmont Bridge 

 will no doubt be removed, and the swing span utilised at 

 some other site, and no doubt in time, as the requirements 

 of the Port extend, Glebe Island bridge will have to be 

 removed, as it limits the dimensions of vessels which can 

 enter Blackwattle and Rozelle Bays, a tunnel from 

 Pyrmont to Glebe Island taking its place. 



Forts and Harbours. 



Although Railways and Roads are required for the 

 development of the greater portion of the State, yet along 

 the seaboard water carriage will always be the cheapest. 

 Much of the richest land of the Stateliesalong the numerous 

 rivers discharging into the Pacific, and as a consequence, 

 large towns and villages have grown up whose only means 

 of getting their produce to market is by water. In order 

 that this may be done, it is essential that the rivers be kept 

 open for navigation and the entrances made as safe as 

 possible. 



Owing to the frequency of floods, which bring down large 

 quantities of silt, the mouths of the rivers become choked, 

 and frequently changes in the position of the outlets 

 occur. Another obstacle to safe navigation was the 

 great difficulty caused by the shifting and dangerous state 

 of the sand bars at the entrances, the only means by which 



