Lincolnshire

Introduction

The coast of Lincolnshire is low-lying and depositional, the Kimmeridge Clay extending beneath The Wash and the Cretaceous formations of the Yorkshire Wolds being concealed by glacial drift in the coastal region. There has been reclamation of former salt marsh and mudflats on the southern and western sides of The Wash, but the North Sea coast is sandy, backed by dunes. To the north, at Donna Nook, salt marshes appear in front of the dunes, and the sandy beach narrows behind shore mudflats in the Humber estuary. Much of the coastal sediment has been derived from drift deposits of the Last Glaciation and Holocene (Postglacial) peat and clay deposits, sorted and distributed by waves and tidal currents (Robinson 1964).

Mean spring tide range at Boston is 6.8 m, at Skegness 6.1 m and at Grimsby 6.0 m.

The Lincolnshire Coast

The southern coast of The Wash is low-lying, with embankments fronting reclaimed land and salt marsh descending to intertidal mudflats on the seaward side....