GEOARCHAEOLOGICAL METHODOLOGY 3.1 Fieldwork Methodology 3.1.1 All works were undertaken in accordance with the WSI as approved by the Local Authority Planning Archaeologist and to standards defined by CIfA Guidelines for Recording of Archaeological Sites (2019; 2020a; 2020b). 3.1.2 The work consisted of two phases of geoarchaeological monitoring. The initial phase consisted of the monitoring of the construction of a new haul road carried out in January/February 2022, and the latter phase consisting of the monitoring of the main deep excavation for the fish pass carried out from July-November 2022. The haul road construction involved ground surface removal by a 360� tracked excavator equipped with a toothless ditching bucket. Spoil material was taken away via dump trucks. The maximum depth of excavation monitored was no greater than 0.5m bgl. 3.1.4 The deep excavation within the fish pass was conducted using a 360� tracked excavator with a toothless ditching bucket. The maximum depth was reached towards the downstream end of the scheme, to between 5.50-6.00m below ground level. 3.1.5 No archaeological remains were encountered. 3.1.6 Photography was carried out, including of the sediment stratigraphy at different stages of the excavation (pre-, mid-, post-excavation), and at different chainage points along the length of the excavation. 3.1.7 The deposits across the length of the excavation were recorded using the Troels-Smith (1955) system of sediment classification (Appendix 1). The scheme breaks down a sediment sample into four main components and allows the inclusion of extra components that are also present, but that are not dominant. Key physical properties of the sediment layers are darkness (Da), stratification (St), elasticity (El), dryness of the sediment (Sicc) and the sharpness of the upper sediment boundary (UB). A summary of the sedimentary and physical properties classified by Troels-Smith (1955) and a stratigraphic breakdown of the deposits were recorded on proforma log sheets. 3.1.8 Organic deposits from available locations along the length of the excavation are retained for sub-sampling at YA facilities. The sampling followed procedures set out within the Historic England Guidelines for Environmental Archaeology and Geoarchaeology (HE, 2015a and HE, 2015b). Waterlogged organic sediments from some locations were subject to archaeolobotanical assessment and radiocarbon dating. Waterlogged wood was identified to species level with reference ...