Vulnerability Analysis of the Cultural Heritage Sites—The Roman Edifice with Mosaic, Constanta, Romania

Heritage monuments are religious, historical, strategic, or civil edifices and could be deteriorated or even damaged due to their exposure to natural and anthropogenic hazards. The Roman Edifice with Mosaic (II-IV A.D.), the largest civil edifice (2040 m2) in Eastern Europe, is an ancient civil edifice built on the steep cliff in the western part of the Black Sea, Constanta, Romania, and is exposed to geomorphological and hydrogeological processes, which are affected by degradation. The main objective of this paper is to assess the current state of this ancient historical site in relation to environmental instability and offer scientific support for the rehabilitation process through interdisciplinary and non-destructive methods. Geophysical methods had been applied to comparatively analyze the spatial variations and flows of groundwater around the Roman Edifice with Mosaic in 2008 and 2019. Geomorphological hazards had already been inventoried and mapped. The results emphasize the state of degradation of the Roman mosaic pavement and ancient walls, mainly through high variations in the deposits’ moisture due to poor maintenance, which caused suffosion, and slip processes, bringing the mosaic into a high vulnerability range. The vulnerability map of the Roman Edifice with Mosaic environment is a necessary tool for continuously improving risk management because it clearly emphasizes the sectors that still have hazards.