The River Crouch and River Roach in the south of Essex have relatively small catchment areas within a mixed urban and rural setting. There are eight water bodies in this operational catchment.
The River Crouch, which is mostly tidal estuary, runs between Holliwell Point and Battlesbridge. The Crouch rises in ‘The Wilderness’ on the Burstead Golf course at Little Burstead, then runs parallel with the A176 (Noak Hill Rd) for about a mile before heading eastwards towards Battlesbridge, passing under the A130 at Mayrose Bridge. At Battlesbridge, the river becomes tidal and is navigable for 17.5 miles at high water.
The River Roach is made up of two main tributaries, which are Nobles Green Ditch to the north and Eastwood Brook to the south. The Roach flows through the town of Rochford and joins the River Crouch at Wallasea Island. 10 miles of the river roach is navigable.
The Crouch and Roach estuary is an internationally important estuarine complex which drains into the Greater Thames Estuary, made up of a network of creeks and islands, including Wallasea Island, Foulness Island and Potton Island. Part of the site is a Special Protection Area (SPA) and a Ramsar wetland site of international importance. The estuary has salt marsh, intertidal mud, grazing marsh and a fresh water reservoir. The salt marsh has scarce species including lax-flowered sea-lavender and one-flowered glasswort. Rough grass has dense populations of the nationally scarce Roesel’s bush-cricket. The site is internationally important for wintering dark-bellied brent geese, and nationally important for black-tailed godwits, shelducks and shoveller ducks. There are Red Data Book species of invertebrates such as the ground lackey moth.
The pressures for this waterbody are divided into categories: Diffuse Pollution, Fish Passage, Flow, Invasive Species, Physical Modification, and Point Source . Please click here to view these pressure descriptions in more detail.
The topics below represent the pressures that many waterbodies in the Combined Essex catchment face. They have been divided into six main categories, but it is quite often that these categories can overlap as pressures relate to each other.