Welcome to the website of the Lea Catchment Partnerships – bringing together people and projects for the benefit of the River Lea and its tributaries.
The River Lea and its tributaries - the Mimram, Beane, Ash, Rib, Quin and Stort - drain over 1000 km2 of south-east England. These rivers include rare and precious chalk streams, canals and navigations, and urban watercourses.
The Storymap for the partnership can be read here.
To view the catchment plans navigate using the map opposite or the menu bars above.
Latest news
23/04/26
– Upper Lea news
Intended works on the Stevenage Brook
The following is an advert going into two local newspapers to inform of intended works on the Stevenage Brook at Bragbury End.
23/04/26
– Upper Lea news
Free farmer event: Defra & Building Resilient Soils for a Changing Climate
Catchment Sensitive Farming are hosting an event for farmers in Hertfordshire on 18 May at Great Gaddesden Parish Hall (see invite link below). There will be a presentation from Defra and workshop with Mel Holloway on building resilient soils.
23/04/26
– Upper Lea news
River Lea Catchment Conference March 2026
See below for some of the presentations at the conference:
Roll over the map to highlight a river catchment, click to view information for that river and view the projects and their progress.
A fantastic citizen science scheme helping local volunteers monitor the water quality of their local river