Dredge Spoil Deposit Sites - Closed and Disused
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This layer shows the locations of dredge spoil disposal sites that are designated as disused (not used for at least 5 years) or closed (not used for at least 10 years or specifically closed). The locations are indicated by points (beyond 1:2,000,000) and polygons (below 1:2,000,000). The spoil is usually as a result of navigational dredging (deepening of navigation channels) on the approaches to ports and harbours.