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Scrabster Ola Pier Extension EIA Screening Request Prepared by Innes Beaton Checked by Fiona Henderson 30th January 2018 Affric Reference: 48/1718/01-V2 Affric Limited, SC 426704, Lochview Office, Loch Duntelchaig, Farr. IV2 6AW Tel: 01808 521498 Email: [email protected] www.affriclimited.co.uk Contents 1 Introduction ...................................................................................................................................................... 1 2 Location .............................................................................................................................................................. 1 3 Characteristics of Development ................................................................................................................ 2 3.1 Project Phases ......................................................................................................................................... 2 3.1.1 Construction ................................................................................................................................... 2 3.1.2 Operation ......................................................................................................................................... 3 3.1.3 Demolition/Reinstatement ........................................................................................................ 3 4 Known Sensitivities ......................................................................................................................................... 3 4.1 Designated Sites..................................................................................................................................... 3 4.2 Biodiversity - Terrestrial ....................................................................................................................... 8 4.3 Biodiversity – Ornithology .................................................................................................................. 8 4.4 Biodiversity – Marine ............................................................................................................................ 8 4.5 People ........................................................................................................................................................ 8 5 Potential Effects ............................................................................................................................................ 10 5.1 Construction ......................................................................................................................................... 10 5.2 Operation ............................................................................................................................................... 14 6 Summary ......................................................................................................................................................... 16 7 References ...................................................................................................................................................... 17 8 Glossary ........................................................................................................................................................... 18 Appendix 1- Background Information .......................................................................................................... 19 1 Introduction The re-development of the Ola Pier within Scrabster harbour on the north coast of Caithness is proposed by Scrabster Harbour Trust in order to provide additional capacity for the anticipated future use of Scrabster Harbour, particularly cruise ships and attracting further energy related vessels. The development will involve both marine construction and dredging works below Mean High Water Springs (MHWS), as well as construction works above Mean Low Water Springs (MLWS). A Marine Licence will be applied for to consent the works to be conducted below MHWS. Works above MLWS will be consented under the Scrabster Harbour Order (Vehicle Ferry Terminal&c.) Order Confirmation Act 1972 which grants permission to the Trustees of the Harbour of Scrabster to “maintain, renew, enlarge alter and reconstruct temporarily or permanently, the works or part thereof.” A formal Screening Opinion is requested from Marine Scotland under regulation 10(1) of the Marine Works (Environmental Impact Assessment (EIA)) Regulations 2017 (‘EIA Regulations’); to determine whether an EIA will be required to support the Marine Licence application for the proposed re-development of the Ola Pier within Scrabster harbour. This report provides the information requested under Section 10 of the EIA Regulations, in order to assist in the consideration of these requests, and inform the corresponding screening opinion, namely a description of: • The location of the proposed works; • The proposed works; • The environmental sensitivities of the geographical area; • The aspects of the environment likely to be significantly affected by the proposed works; • The likely significant effects; and • The features of the proposed works or proposed measures envisaged to avoid or prevent significant adverse effects on the environment. It is not considered that the proposed Scrabster Ola Pier extension development constitutes a Schedule 1 Development, as defined in the regulations. However, the total footprint of the proposed development is approximately 5.4Ha this is inclusive of the Dredge area 3.9Ha, Pier Development 1.3Ha and the construction compound 0.2Ha, as such is likely to be classified as Schedule 2 Development under section 10(g) and hence may require an EIA, subject to an assessment against Schedule 3 of the EIA Regulations. 2 Location Scrabster is located on the north coast of Caithness and has a grid reference centre point of ND10437 70310 (Figure 48.01). Scrabster is situated 1½ miles north west of Thurso the largest town in Caithness and provides a ferry link to Orkney and is ideally situated for access to the Atlantic Ocean and the North Sea. Scrabster Harbour falls within the boundaries of the Highland Council. The Harbour is shown in (Figure 48.02) and the development is delineated in (Figure 48.02.B), the Ola pier is situated 1 within the centre of a busy operational harbour, further background information is provided in Appendix 1. 3 Characteristics of Development The existing Ola Pier was constructed in 1972. It incorporates a 100m long berth face to the south west, a linkspan and a further 115m berth which was utilised by the Orkney ferry prior to the Queen Elizabeth pier being constructed in 2003. The north-east side of the Ola Pier currently has no berthing ability due to a 5-foot sea protection wall. Due to the age of the Ola Pier it is in need of upgrade, the redevelopment aims to ensure the ongoing structural integrity of the Pier while also providing additional berthing for use, particularly by oil and gas supply vessels and cruise ships. The Scrabster Ola Pier Extension is still to be designed but is likely to comprise of the following main components (Figure 48.03): • Removal of the Old Linkspan and reclamation (Reclaim 2) of the space left to provide laydown and an appropriate berthing face, the reclamation area will be approximately 700m2 (Infill). • Installation of a new pile wall to the south-west, south and north-east of the existing pier to improve the berthing structure. • Reclamation (Reclaim 1) of approximately 1,600m2 behind the proposed north-east quay wall to widen the pier. • Dredging to allow large vessel access on the north-east side of the quay to a depth of -9m covering an area of approximately 39,000m2. • A Secondary and additional option would see the south-west quay wall (South West Quay Option 2) continue in line with the existing pier and a thereafter tie in with a new south-east pile wall. • Reclamation (Reclaim 3) of approximately 1960m2 behind the proposed extended south-west quay wall to widen the pier. 3.1 Project Phases 3.1.1 Construction 3.1.1.1 Pier Extension and Reconstruction The existing pier will be extended with a new Quay wall being installed in line with the existing North-east quay and extending towards the foreshore. A new quay wall will be installed along the inner section of the south-west quay and along the front of the old Link span. The Southern end of the quay will also have a pile wall installed to tie in with the North-east quay wall. This will require driving steel piles into the underlying rock head. A steelwork bracing frame will then be installed to tie the piles together, the existing North-east Quay sea protection wall will be de-constructed and if suitable re-used for infill. The Linkspan shall be removed along with the concrete suspended deck which again if suitable shall be utilised for infill. The reclaimed areas will be infilled with aggregate and thereafter topped with a reinforced concrete slab which may be poured in situ. Bollards, surface drainage with oil/silt interceptors, lighting and power will be installed. 2 It is not known at this time what type of fendering will be utilised on the quay walls, but it is envisaged that adequate fendering will be installed to the appropriate standard for the vessels that are expected to use the berths. 3.1.1.2 Dredging Dredging will be undertaken to allow berthing of vessels on the north-east side of the Ola Pier and to allow for their manoeuvres in the harbour. The dredge material will be analysed to determine its suitability