This paper presents case histories of two encounters with relic landslip features in Jurassic strata. The geometry and possible mechanism of growth of the landslips are considered, together with the effects of the reactivation of the landslips on the construction of Daventry By-Pass. The remedial options to stabilize the landslips are discussed together with the selected solution of ‘on-going’ maintenance. The uncertainty of detection of relic slip surfaces on hillslopes displaying little clear geomorphological evidence of previous movement is highlighted.
- © 1981 The Geological Society