| Item Number | Date | Description | |
|---|---|---|---|
|  More info . . . | 1055 | 24 May 1916 | Fourth Lock Masonry: Culvert floor slabs near west end | 
|  More info . . . | 1056 | 25 May 1916 | Fourth Lock Masonry: Placing first concrete in widewalls | 
|  More info . . . | 1057 | 25 May 1916 | Fourth Lock Masonry: Detail of steel culvert forms | 
|  More info . . . | 1058 | 8 June 1916 | Fourth Lock Masonry: Concreting first section of filling culvert | 
|  More info . . . | 1059 | 8 June 1916 | Fourth Lock Masonry: First section filling culvert, placing reinforcement in roof | 
|  More info . . . | 1060 | 21 June 1916 | Fourth Lock Masonry: Concreting first section wall on south side | 
|  More info . . . | 1061 | 21 June 1916 | Fourth Lock Masonry: Four sections filling culvert completed, erection of steel wall forms | 
|  More info . . . | 1062 | 21 June 1916 | Fourth Lock Masonry: Construction of floor slabs of filling culverts | 
|  More info . . . | 1063 | 3 July 1916 | Fourth Lock Masonry: Cranes handling the back trusses of the steel wall forms | 
|  More info . . . | 1064 | 8 July 1916 | Fourth Lock Masonry: Erection of steel forms, trusses for back form and bulkheads in place | 
|  More info . . . | 1065 | 8 July 1916 | Compensating Works: Rock face below sluices, looking north along east side of cofferdam | 
|  More info . . . | 1066 | 8 July 1916 | Compensating Works: View looking east from west cofferdam, showing sluices No. 9 and No. 10 | 
|  More info . . . | 1067 | 8 July 1916 | Compensating Works: View looking east from west cofferdam, showing sluices No. 11 and No. 12 | 
|  More info . . . | 1068 | 13 July 1916 | Fourth Lock Masonry: General view looking east, showing cross section of culverts and anchor rods in foreground | 
|  More info . . . | 1069 | 13 July 1916 | Fourth Lock Masonry: Steel forms for narrow wall, timber verticals on bulkheads and steel sheathing on back form |