]> 2026-04-07T13:03:00+00:00 Case study:Deculverting Djupsund stream 500 en Not Djupsundbekken gjennapning J02.pdf SFFAL rapport dugnadsarbeid Djupsund.pdf Description of the culverted stream, and initial technical proposals for deculverting (in Norwegian) Draft Re-introducing spawning gravel Vannområde Horten-Larvik Sandefjord Forvaltningsråd for Anadrom Laksefisk Miljødirektoratet Yes No Yes false Djupsund stram after daylighting 2.jpg Djupsund stram after daylighting 1.jpg New pipe under way that crosses Djupsund stream.jpg Sea tout at the opening of the old culvert in Djupsund stream.jpg Description restauration project in Djupsund Stream.png Djupsund stream after deculvering. Picture: Miguel A. Segarra Valls New pipe under way that crosses Djupsund stream. Picture by Miguel A. Segarra Valls Sea tout at the opening of the old culvert in Djupsund stream (before restauration).Picture by Miguel A. Segarra Valls Description restauration project in Djupsund Stream. Record: Norconsult No 1.2 New research shows that the ideal amount of spawning gravel in a stream is 20 % of the habitat (https://lakseelver.no/nb/news-2019/utlegg-av-gytegrus). We covered much more of the reopened stream, and will consider to take measures in order to increase the habitat variation. 59.12047457606,10.261882763422 Miguel Angel Vannområde Horten-Larvik Segarra Valls Re-introducing spawning gravel,,Bigger diameter pipe under way, Deculverting,,,, 5 The recolonization of the new stream stretch by sea trout will be monitored from 2021. Deculverting 26279 Sandefjord Forvaltningsråd for Anadrom Laksefisk 3 Djupsund stream before and after daylighting.png 2020-01-15Z 2458863.5 In progress The Djupsund stream is a very small but very important stram for sea trout in the fjord Mefjorden (Sandefjord municipality), and it has been described as "a small sea trout machine". The upper part of the stream was culverted with pipes that were too small, and this caused problems for crossing way when strong rainfall episodes occurred. Around 80 m of the stream were daylighted, and a new 1 m diameter pipe was installed under the way in December 2020. Gravel was used to cover parts of daylighted stream and the bottom of the pipe under the crossing way. We intend to restore the riparian vegetation along the daylighted stream during spring 2021, in cooperation with pupils from a nearby school. Deculverting Djupsund stream deculverting djupsund stream No Bigger diameter pipe under way Djupsundbekken djupsundbekken Habitat and biodiversity Social benefits Spatial planning R110 EU-ID:NO015-1467-R Djupsundbekken 9 2021-02-15Z 2459260.5 2021-02-04T19:38:36Z 2459250.3184722 2021-02-16T09:22:39Z 2459261.8907292 Deculverting Djupsund stream