]> 2026-04-12T20:30:29+00:00 Case study:Little Ponton 500 en Little Ponton Case Study (final) v2 010316.pdf Project Case Study Approved brushwood mattress installation Hinged Trees Log Flow Deflectors and Vanes. Environment Agency Grantham Angling Association Fly Fishing Section Great Britain Environment Agency Yes No Yes true Little Ponton 1.png Little Ponton 2.png Little Ponton 3.png Post restoration Post Restoration No Learning lessons from the earlier GAAFFS work, willow logs were was not used in the subsequent phase of enhancement work. Instead logs, branches and brushwood generated by the management of other riverside tree and shrub species were used to create a variety of structures to protect vulnerable banks from erosion, narrow the channel and trap suspended fine sediment. 52.872697880893,-0.62260975281826 Matt Environment Agency Parr Improved stock fencing and ford refurbishment. brushwood mattress installation, Hinged Trees, Log Flow Deflectors and Vanes.,, ,Improved stock fencing and ford refurbishment.,, A fixed point photographic record has been set up and this, together with visual inspections, will be used to monitor the integrity and performance of the in-stream structures. A programme of fine sediment sampling and Wolman Pebble Counts to monitor the coarser riverbed material has also been established. In combination they will determine and record changes to river morphology as the result of the works. The established crayfish monitoring site at the bottom of the reach is already surveyed every 2 years and this will give an indication of the impact of the scheme on crayfish numbers. Finally additional ongoing invertebrate sampling will identify any ecological and water quality changes that occur. 27138 Grantham Angling Association Fly Fishing Section Brushwood mattress in restoration section Little Ponton 4.png 2013-01-02Z 2456294.5 Complete Project Objectives * To reduce fine sediment inputs caused by bank erosion. * Trap mobile fine sediments already in the river. * To improve conveyance during higher flows and reduce flood risk. * To improve in-stream habitats and the bed structure to benefit fish and invertebrates, including white-clawed crayfish. The Enhancement Scheme The enhancement scheme was completed in two phases. A short section downstream of Great Ponton Mill was completed in February 2013 and the second, the continuation downstream to Whalebone Lane, Little Ponton, was completed in mid-August 2014. Prior to the enhancement work the in-river habitat was in generally good condition, however opportunities were identified to provide additional cover and food supply for a range of aquatic organisms together with measures to modify the flow to improve the structure of the riverbed and reduce the deposition of fine sediment. The works consisted of brushwood mattress installation, Hinged Trees, Log Flow Deflectors and Vanes, improved stock fencing and ford refurbishment. Little Ponton little ponton Yes 1620 Witham Anglian Upper Witham upper witham Little Ponton little ponton Native Crayfish / Brown Trout 10 - 100 km² 46 Less than 100 m Upper Witham GB105030056760 Fisheries Habitat and biodiversity 27000 10 - 50 k€ GB105030056780 Witham Confluence Cringle Brook to Confluence Brant 2024-02-19T14:14:06Z 2460360.093125 2024-02-27T12:07:26Z 2460368.005162 Little Ponton 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Little Ponton]] [[Subcatchment title::Upper Witham]] Little Ponton# QUERY1c040351986923934b5c679cae8b158c