]> 2026-04-13T15:57:29+00:00 Case study:Longstreet A 91a 500 en AVON13 A91a Longstreet PR.pdf Project summary Approved Gravel berms Riffle creation Bank reprofiling Lowering of impoundment Introducing large woody debris Tree management Environment Agency Great Britain Environment Agency Yes No Yes false AVON13 A91a LongstreetPR before.jpg AVON13 A91a LongstreetPR after.jpg Impoundment - Before Impoundment - After No 51.259820134022,-1.8002557754517 Mike Environment Agency Porter Gravel berms, Riffle creation, Bank reprofiling,,,Lowering of impoundment, Introducing large woody debris, Tree management, ,,, 12404 2013-01-01Z 2456293.5 AVON13 A91a LongstreetPR overview.jpg Complete This reach is located to the south of Enford and is 1535m in length. The original reach has been sub-divided into two due to the overall length of the reach (1.5km) and differing channel characteristics. This note therefore refers to the upstream section only, between Enford Bridge and Enford Grange, approximately 0.5km in length. The reach is designated SSSI and SAC. There reach is privately fished. Downstream of Enford Bridge the channel has been altered in the past due to dredging and straightening. The channel is deep and flow is slow and uniform, which is causing the deposition of silt within the channel, obscuring the gravel bed below. The reach is also affected by an impoundment caused by a wooden board and stone weir at Enford Grange. This structure impounds the river for at least 150m upstream and possibly further, resulting in uniform flow conditions and drowned out riffles. The left bank is also being undercut and eroded in a number of places along the reach. Longstreet A 91a longstreet a 91a http://www.environment-agency.gov.uk/homeandleisure/wildlife/119594.aspx No 575 Hampshire Avon South West Hampshire Avon (Upper) hampshire avon (upper) 100 - 1000 km² 212 200 - 500 m Hampshire Avon (Upper) GB108043022350 Fisheries Habitat and biodiversity 34 10 - 50 k€ GB108043022350 Hampshire Avon (Upper) 2014-01-24T14:13:53Z 2456682.0929745 2017-06-02T08:03:45Z 2457906.8359375 Longstreet A 91a 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Longstreet A 91a]] [[Subcatchment title::Hampshire Avon (Upper)]] Longstreet A 91a# QUERYe713c4db110ef70146602b596752550d