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In order to evaluate the safety of levees from an integrated geophysical method, a database containing results of the integrated geophysical method, boring logs and existing levee safety assessment was constructed. The database consists of four parts: A) a database of the geophysical investigation results, B) a database of existing levee safety assessment information, C) a database of N-value, soil type, S-wave velocity (Vs) and resistivity, D) a database of Vs, resistivity and laboratory test. Data registered to the database is as follows: a length of about 650 km of geophysical investigation results, about 400 boring logs, about 4000 relationships of Vs, resistivity, N-Value and soil type, about 1000 relationships of Vs, resistivity and laboratory test. The database was constructed on Web server using MySQL and PHP so that users can access to the database through internet. This paper presents outline of the database, example of data, and application example of the database and proposes management structure and policy of utilization of the database in the future.