Technical state of closed drainage on irrigation systems owing to well-established, conditions for the country's economy development was without due attention beginning since the 90s of the 20th century and this was negatively reflected of their operational capability nowadays. Current survey procedures of closed drainage on irrigation systems are directed at evaluating, as a whole, serviceability of structure system elements for the further operation. When conducting survey a number of questions to the methods and ways to detect faults and defects as well as to forecast remaining life operational capability for the given period of time have been arisen. The objective to develop an automation technology for multifactor survey of closed drainage of irrigation systems is evaluating actual technical state of structural elements and the main equipment by the methods of non-destroying instrumental control, determination of remaining life operational capability of their elements as well as determination of safety deficit to evaluate possibilities of continuing operation above the fixed service life. The positive results of the above evaluation are the basis to prepare a structure for prolongation of its service life.

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The analysis of the current approaches to the assessment of the technical condition of water supply facilities of irrigation systems has been carried out and the need has been established for improving the monitoring technology for reclamative water utilization system on the basis of the development of innovative automated instrument control methods that use the integral evaluation of the remaining service life of structures and the prediction of the service life of the facility. Created software-hardware complex automated diagnostic detection of latent defects providing designs and constructions underlying subgrade acoustic GPR and methods of nondestructive testing, determination of the location and geometric parameters of each structure element malfunctions. As part of the diagnostics, an assessment is carried out: the degree of abrasion, leaching, filtration of concrete elements of structures; indicators of frost resistance and water resistance, the volume of existing damage and the efficiency of the structure. The problem with the evaluation of the effectiveness of the creation and application of automated control systems for technological processes, caused by the lack of standards in the field of melioration regulating such calculations, is identified.

The specific investment projects and the use of effective innovative methods of effectiveness calculation of the planned activities are important factors in profitable capital investment. The authors prove the need of studying the effectiveness assess of investments in land development using a common economic theory. It aims to speed up the formation of the methodical directions of accounting risks meeting the reclamation practices requirements. The purpose of the study is to improve the theory of assessment effectiveness of reclamation activities on the basis of synthesis, analysis and development of the effectiveness output of specific investment projects considering the risks. The analysis of the economic efficiency of the LRIP is based on the investment activities of the federal target program "Land reclamation development of agricultural land in Russia for 2014-2020." The investment usefulness in the federal target program activities of land development considering risk assessment was realized by methods of qualitative and quantitative analysis: sensitivity and scenario analysis. In the process of qualitative analysis significant risk factors are: an increase in investment costs, in discounting rate, a change in operating costs and purchasing of prices for agricultural products. It is shown that the pure present project value is the most dependent on discount rate. It is due to the exponential dependence of the future value of money from this parameter. The risk level of program implementation calculated by scenario analysis is 13.5%. This demonstrates investment feasibility in its implementation. The need for normative and methodological improvement of the current tools risk evaluations is demonstrated. It is based on the automated assessment of LRIP risks by the method of Monte Carlo.

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