The object of research are traffic tunnels at the combined road (motorway and railway) the city of Adler to the Alpica Servis alpine resort, which construction and operation was bound up with negative environmental impact. Analysis of the environmental impact of technological processes during the construction and operation of tunnels was carried out data-driven of field study. Scientific and methodical bases of performance mining and environmental monitoring in the unique natural and geographical conditions of the Caucasian Reserve are developed. Nomenclature of monitored indicators, points and frequency of their measurement, as well as the requirements for instrumentation are defined. The measurement result of the pollution content in the air and soil during the construction and operation of traffic tunnels are presented. The objective laws of adverse impact on various components of the environment depending on the construction phase are established.