EHG4759 - DBA and walkover survey - A86 Laggan causeway, Laggan

A desk-based assessment and walkover survey were undertaken by CFA Archaeology in 2012 on the Laggan Causeway on the A86 trunk road. The causeway crosses a section of the River Spey floodplain and is subject to erosion from periodic flooding. The work was commissioned by Scotland Transerv, who proposed to widen the carriageway and incorporate a cycleway which would involve the construction of new embankments. The length of affected road was walked and areas of erosion noted. It was recommended that a watching brief during construction works should be undertaken to record additional information about the causeway, such as: the character of the metalling construction of the road; the relationship and date of the retaining wall on the west bank, much of which was currently masked by vegetation; and the build/construction methods of the causeway. <1>