NWRT - SWIMWAYS_P02, fencing, tree planting, gates, troughs, solar

Description

PLEASE SUBMIT QUOTES VIA EMAIL TO antony@northwalesriverstrust.org Stock fencing ~ 990 m. Fence to be constructed using FSC certified, UC4 treated timber and high tensile wire. Strainer posts to be 7-8” diameter and at start, end and major changes in direction, supported by braced struts. Turning posts 5-6” used at minor changes in direction or height. Intermediate posts 3-4” diameter and no more than 11’ apart. 80 cm sheep netting with two strands of barbed wire, one above and one below the netting. The finished fence height should be approximately 1.1m (44”). Use of a track machine is obligatory due to wet ground conditions likely to be encountered. Strainer posts and struts to be no closer than 2 m from the top of a steep bank, or if gentle sloped bank, no closer than 2 m to the water’s edge. The exact positioning of the fence will be agreed between the contractor, grazier, and NWRT before installation. - Remove ~ 280 m of existing fence and dispose off-site. - Supply and hang 4 x 12’ galvanised steel access gates at the locations indicated on the plans (excluding location at Photo 5, Figure 2). Gates should include self-closing springs with appropriate tie-back stakes/latches. Access gates should always be hung on gate posts which are railed to a strainer, never hung on the same post that wire is tensioned to. Livestock bridge (near Photo 2, Figure 2) - Erect post and rail fencing either side of the livestock bridge, ~ 40 m total length. Groundwork will be required to clear ~ 2.5 m of hedgerow and stone wall to allow stock access to the bridge. Vehicle bridge (Photo 3, Figure 2) - Erect post and rail fencing either side of the vehicle bridge (Photo), ~ 20 m total length. - Resurface bridge. The bridge is constructed from railway sleepers on metal girders. Please specify your approach to resurfacing the bridge in your quotation – site visit advised. Road access gate (Photo 5, Figure 2) - Supply and install 1 x 16’ galvanised steel access gate. The road access is currently not wide enough for large farm vehicles. To widen access a section of stone wall, ~4’, will need to be removed. Improving road access and resurfacing the bridge will prevent use of the ford which is to be fenced off. Water supply - Supply and Install 1 x SPS-70 solar pump system (https://solarpumpsolutions.co.uk/,secured to concrete base to prevent theft. The pump should be located no more than 30m distance and 5m elevation from the watercourse. The system should be South facing with a clear, unobstructed view. Post and rail fencing should surround the pump to prevent damage by livestock. Replace stock battery with NWRT Supplied battery (if required). Landowner/tenant to keep stock battery as spare. Also see attached SPS guidance sheets for installation and priming. - Piping – Dig trench to lay 540 m pipe. Where the pipe crosses pasture, the trench depth must exceed ploughing depth (minimum 30 cm depth). Pipe from watercourse abstraction point is to be one unbroken piece (no joints) of 25mm pipe, ~ 25 m. Piping from the water pump going to the troughs is to be 32mm ONLY with fast flow/low pressure ball valves on water troughs so water flow rate is not restricted. ANY joints fitted are to be suitable Plasson joints. - Install 1 x sump abstraction point for solar pump system following design principles set out in technical note TN665 produced by the Farm Advisory Service. https://www.fas.scot/downloads/alternative-watering-field-grazed-livestock-i-abstraction-systems/ and see Figure X (Water housing figure). Due to in-river planning restrictions the sump abstraction system cannot be installed before mid-April 2024. Before installation of the sump the abstraction pipe to the solar pump should be temporally secured within the river channel at a suitably deep location but not in contact with the riverbed. Water housing to be installed in river to allow water abstraction – 300mm perforated twin walled pipe to be dug into riverbed with 110mm