A single evaluation trench, 15m long, was excavated by Colchester Archaeological Trust under archaeological supervision using a 360 degree tracked machine. The trench bisected the projected line of an existing track that is of suspected Roman origin. The evaluation trench was cut through modern topsoil, which directly sealed natural geological material, a thick heavy clay matrix. Two features were identified within the evaluation trench, ie a modern field drain and a track way. The track was 4m wide and formed of roughly compacted gravel and medium to large-sized cobbles. Within the lower make-up of the track, crushed brick and salt-glazed pipe fragments were recorded. The brick fragments were frogged, indicating that the track was constructed in the post-medieval/modern period and was possibly a farm track. It is possible that the track replaced an older trackway, which has been removed (although no material pre-dating the post-medieval period was observed in the evaluation). Also noted in the evaluation was a lack of any accumulation material. This, in conjunction with the fact that modern topsoil directly sealed natural layers, suggests that material has been removed from here, possibly at the time of works associated with the construction of the main reservoir. <1>