| 1660 | Douglas | “Bulwarks” was ordered to be kept in good repair. |
| c1670 | Castletown | High arched stone bridge built on site of existing footbridge. |
| 1671 | Douglas | Great Lantern with 2 lights (5/-) |
| 1692 | | Applications from interested parties, to Earl of Derby to build one or more lighthouses. |
| 1736 | | Earl of Derby dies without issue and Island passed to Duke of Atholl. |
| 1750 | Castletown | Quays being built. |
| 1758 | | Sketch of Douglas Pier brick lighthouse (in Blair Castle (Atholl) Papers). |
| 1760 | Douglas | Pier erected. |
| 1761 | Peel | Pier entirely carried away. |
| 1765 | Peel | Pier built |
| 1765 | | Duke of Atholl sold and conveyed Harbours to Crown |
| 1765 | Castletown | Light at Castletown established, white 22ft above HW 16ft from lantern to ground. Only when a ship wishes to enter and exhibited all night during herring fishing. |
| 1766 | Douglas Ramsey | Lighthouses existing (appx BNo2) Commissioners Report 17 |
| 1768 | Douglas | Lake encroachment (P Heywood) |
| 1773 | | Proposal to establish Light Tower on Calf of Man |
| 1777 | Douglas | Harbour Bridge removed and re-erected 180 yards higher up river (in 1779) |
| 1786 | Douglas | Bridge washed away |
| 1787 | Douglas | 84 yards of Old Pier with Lighthouse destroyed by E’ly gale |
| 1787 | Douglas | 21st September further damage to Old Pier. Part of fishing fleet lost |
| 1790 | Douglas | Treasury Engineer’s Report on need for sheltering breakwater |
| 1790 | Ramsey | South Pier built |
| 1791 | Peel | “A light is very much needed at Peel Harbour” (“Cumberland Paquet” 9/4/1791 reporting wreck near Peel). |
| 1791 | | Duke of Atholl gives evidence on state of Harbours before Commissioners |
| 1791 | Ramsey | Small Pier 80 yards long existed on N side of Harbour |
| 1791 | Douglas | Only harbour light in Douglas was lantern on pole at extremity of remains of Pier Head |
| 1791 | Douglas | Tongue built |
| 1792 | | Commissioners Report |
| 1792 | | No Coastal Lighthouses in this year |
| 1793 | Douglas | £24,000 voted to erect Red Pier |
| 1793 | Douglas | Red Pier commenced (Predecessor in 1764) |
| 1795 | Castletown | Parallelogram Bridge at Castletown |
| 1796 | Peel | Causeway erected |
| 1796 | Douglas | Light established Red Pier. 34 ft above HW, 6 miles |
| 1796 | Douglas | October – Bridge destroyed |
