163 06 SD08 Environmental Action Plan Template
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Natural Resources Wales Ammanford Flood Risk Management Scheme Environmental Action Plan Doc Ref.: 272967-ARP-XX-XX-RP-EN-0004 Ammanford Flood Risk Management Scheme Environmental Action Plan Project name Ammanford Flood Risk Management Scheme Project code 272967 Area Ammanford, Carmarthenshire Date 08/01/2021 Version number 1.2 Author Ian Meyrick / Gareth McIlquham [Arup] Revision history Revision Summary of changes Author Version date number 01/09/2020 First Draft Ian Meyrick / Gareth 1.0 McIlquham [Arup] 06/01/2021 Incorporation of NRW Review Comments Ian Meyrick / Gareth 1.1 McIlquham [Arup] 08/01/2021 Pre-Application Consultation Issue Ian Meyrick / Gareth 1.2 McIlquham [Arup] EAP Approvals Name Signature Title Date Version Heilyn Williams / Marianne Jones Distribution Name Title Date Version Susie Tudge Page 2 of 31 Ammanford Flood Risk Management Scheme Environmental Action Plan Purpose This Environmental Action Plan (EAP) summarises the actions required to implement the environmental mitigation for Ammanford Flood Risk Management Scheme. It sets out specific objectives and actions defining the way in which environmental risks should be minimised. It also details roles and responsibilities of those involved in the proposal. These actions form part of the contract documentation and must be adhered to. Roles Each action in the table below has one named person who is responsible for ensuring that the action is implemented. It is ultimately the contractor’s responsibility for ensuring the EAP commitments, which may include planning conditions, are delivered. The Environmental Assessment Team (EAT) are responsible for agreeing any changes to the EAP and for signing off, or agreeing to the signing off, of the actions. The contractor and Project Manager are responsible for advising EAT on any changes to method statements or the planned construction work as these may result in changes to the EAP or additional consultation with statutory consultees. EAT will assess the significance of these changes and determine the appropriate course of action. The contractor is also responsible for implementing good environmental practice on site, in line with their own Environmental Management System (EMS). Typical issues include: • any working hour restrictions. • dust suppression measures. • traffic management. • site waste management. • materials management. • vehicle maintenance and management. • pollution prevention and control (including storage, refuelling and incident response). • response procedures e.g. services strike, contaminated land. • hazardous materials handling and storage. • noise management. • securing and delineation of working areas including signage. Environmental Audits It is not anticipated that any audits will be undertaken during the working period, but the work will be supervised. Environmental Incident Reporting system Procedure 1. STOP Before you report the incident, stop the work 2. CONTAIN Where safe to do so, carry out any local site pollution prevention or emergency incident measures 3. NOTIFY Page 3 of 31 Ammanford FRM – Environmental Action Plan Report the incident to the (24 hour) NRW incident hotline 0300 065 5111, stating that it is an NRW caused incident and giving full details of the incident, including location and contact details. Also request, and note, the incident number. 4. REPORT Report the incident (including the incident number) to: the EMS team ([email protected]) All environmental incidents must be reported at the earliest opportunity to the ECC Project Manager, Site Supervisor, NRW Project Manager and NRW Environmental Project Manager. In addition, near misses must be reported via the hotline where there was/is the potential for a significant impact and where lessons can be learned. Initial reports for such incidents and near misses must be followed by a written report using the contractor’s in-house forms. This must include the following information: • project/location. • date. • contractor. • details of what happened. • cause of incident. • lessons learned. This final and comprehensive investigation report is to be provided by the contractor to the ECC Project Manager, NRW Project Manager and Safety, Health and Environment Manager within 14 days. Summary Scope of Works The proposed flood defence improvements comprise a series of flood walls and embankments along the banks of the River Loughor, from Coleg Sir Gar at the southernmost extent to Parc Henry Lane at the northernmost extent, together with small-scale sediment removal from a section of the channel under and immediately adjacent to the A483 road bridge. The scheme proposals are shown in the planning drawings of the Pre-Application Consultation pack and summarised as follows (south to north): Flood Defence Improvements: • Coleg Sir Gâr Flood Wall – located on the western riverbank of the River Loughor south of Dyffryn Bridge, adjacent to Coleg Sir Gâr Ammanford Campus. Construction of an 80m, 1.2m high flood wall with brickwork cladding and concrete copings. The works would include replanting of 11no. trees, 2no. bulb planting areas, and public realm improvements. • Tir-y-Dail Weir and Fish Passage Improvements – located within the River Loughor watercourse south of Dyffryn Bridge. Installation of 5no. pre-barrage notches, reinforcements to the existing Tir-y-Dail Weir and installation of rip-rap protection. The barrages comprise of block stones shaped in convex curves incorporating concrete notches. The pre-barrages will be installed with deep streaming flow notches to allow fish passage. • Cwmllwchwr Mill Flood Wall & Ground Lowering – Commercial units situated to the immediate south of Dyffryn Bridge upon the eastern riverbank. Construction of a 90m long, 0.6m-1.4m high flood wall adjacent to commercial units, rip-rap covering, ground lowering, cellular paving with grass infill, reinstated path and mitigation Page 4 of 31 Ammanford FRM – Environmental Action Plan planting comprising 59no. trees and wet woodland mix planting. The wall is accompanied by an area of ground lowering (c. 80m x 20m) to the east of the pre- barrage fish pass to improve conveyance during flood events. The lowered area will include a 1:3 slope back up to existing ground level. Erosion protection consisting of rip-rap and concrete cellular units will be installed to the riverbank along the new wall. • Heol Haydn Flood Wall – located on land on the western riverbank of the River Loughor adjacent to Gwyn Fryn Estate properties. Construction of a 200m long, 1.0m high reinforced concrete flood wall with brick cladding on the dry side and concrete copings and reinstated pathway. The proposals would include mitigation planting of 39no. trees and 9no. areas of spring flower planting and public realm improvements. • Shands Road Flood Wall – located on land situated between light industrial units at Shands Road on the eastern bank of the River Loughor. Construction of 4no. flood walls (87m, 12.1m, 16m and 30m in length, 1.5m high) to tie into existing industrial units to create a continuous flood wall. Waterproofing will be applied to the external river side walls of the industrial units where they form part of the defence line. Mitigation planting, comprising 27no. trees, wet woodland mix and two interpretation boards. • Tir-Y-Dail Flood Bund – a 137m long, 20m wide and 2.0m high flood bund and will be gently sloped (1V:3.5H to 1V:5H) to enable the bund to fit with the local character. Located within agricultural land situated between Shands Road and Heart of Wales Railway Line. Proposed flood bund with a typical 2m crest width and associated landscaping. Each bund terminus would be installed with cellular with grass infill. Minor ground raising (c.100mm) will be provided along the northerly tie-in to Shands Road to cut off a potential flood path. • Railway Bridge Flood Wall – located immediately east of railway bridge on the southern bank of the River Loughor within Bonllwyn Farm. Construction of a 45m long, 1.2m high reinforced concrete flood wall. • Bonllwyn Farm Flood Wall – located in Bonllwyn Farm on the southern bank of the River Loughor. Construction of an 80m, 0.8m high mass concrete flood wall tying into the railway bridge parapet. • Bonllwyn Farm Landscape Planting – located on the southern bank of the River Loughor between the proposed Bonllwyn Farm and Railway Bridge flood walls. Mitigation planting of 13no. trees and wet woodland mix to mitigate riparian vegetation loss upon the River Loughor. • A483 Flow Deflector and Access Ramp (Llandybie Bridge) – located on the southern riverbank of the River Loughor, immediately adjacent (east) of the A483 road bridge, with a 67m long access track connecting to the dead end of Heol Llwyd. Installation of a timber flow deflector to avoid further build-up of gravel and scour protection within the watercourse, small-scale sediment removal from under the bridge and a vehicle access ramp constructed of reinforced concrete and cellular paving with grass infill. The side slopes to the vehicular ramp would be lined with blockstones. Works would include a gated access, vehicle bollards and reinstated pedestrian path. • Bonllwyn Flood Wall – 105m long, 1.0m high flood wall, located on the southern bank of the River Loughor to the rear of properties fronting Ffordd-Yr-Afon. Construction of reinforced concrete flood wall with dry side brick cladding and concrete copings. The proposed development would include an interpretation board, Page 5 of 31 Ammanford FRM – Environmental Action Plan 12no. replacement trees upon the riverbank and 2no. large bulb planting areas with the adjacent existing footpath reinstated along its existing alignment. • Bonllwyn Green Landscape Planting – located south of the River Loughor, adjacent to Llandybie Road to the west. Tree mitigation planting and public realm enhancements including 57no. trees, 4no. timber benches, an interpretation board and wildflower meadow planting. • Parc Henry Lane Flood Bund – 127m bund between 0.3m and 0.7m in height, located at the northern bank of the River Loughor wrapped around the existing and proposed properties at Parc Henry Lane. Proposed grass flood bund to tie into existing riverbank north of the River Loughor.