The History of Pagham Harbour
From working port to nature reserve
Pagham Harbour has been the defining feature of the village's geography and history for centuries. The harbour is a tidal inlet on the eastern side of the village, formed by the interplay of sea, shingle and the low-lying coastal plain. Its history is a story of constant change, driven by the forces of tide, storm and human intervention.
In the medieval period, the harbour was an open tidal inlet used by fishing boats and small coastal traders. The channel was navigable by shallow-draught vessels, and the harbour supported a modest fishing industry alongside the agricultural economy of the village. Salt production from the harbour marshes was another economic activity, with salt pans operating along the margins of the inlet.
By the seventeenth and eighteenth centuries, the harbour was gradually silting up. The natural processes of coastal sediment transport were reducing the depth of the channels and the extent of the navigable water. Smuggling flourished along the remote, marshy shores of the harbour during this period, with contraband goods landed under cover of darkness and moved inland along the network of lanes and tracks.
In 1876, a scheme was implemented to reclaim the harbour for farmland. A sea wall was built across the harbour mouth, cutting off the tidal flow and allowing the enclosed land to be drained and ploughed. The reclamation was driven by the desire to create productive agricultural land from what was seen as wasteland. For over thirty years, the former harbour was farmed, though the results were mixed and the low-lying land remained prone to waterlogging.
The decisive event in the harbour's modern history came in 1910, when a severe storm breached the sea wall and the sea flooded back in. The decision was taken not to repair the wall, and the harbour was left to return to its natural tidal state. Over the following decades, the mudflats, saltmarsh and shingle habitats re-established themselves, and the harbour developed into the rich wildlife site that exists today.
The harbour was designated a Local Nature Reserve in 1964 and a Site of Special Scientific Interest in 1975. The RSPB became involved in its management in the 1990s. Today, Pagham Harbour is one of the most important coastal wetlands in southern England, supporting internationally significant populations of overwintering wading birds and a range of other wildlife.
The harbour's transformation from working port to nature reserve mirrors a wider pattern along the English coast, where former harbours, salt marshes and tidal inlets have been returned to nature as their commercial use has declined. The difference at Pagham is the drama of the 1910 breach, which provided a sudden rather than gradual return of the sea. The breach created a natural experiment, allowing ecologists to study how a tidal habitat re-establishes itself from a standing start.
The harbour's ecological recovery has been remarkably successful. Within decades of the breach, the mudflats, saltmarsh and shingle had developed into a functioning ecosystem capable of supporting thousands of wading birds and a rich community of plants, invertebrates and fish. The speed and completeness of the recovery demonstrates the resilience of coastal habitats when they are given the chance to develop naturally, without human interference.