Abstract
Large-scale civil engineering works for Dams or Earthwork cover a wide work area, various kinds of work are executed everywhere in parallel at the same time, the job sites are at a distance from the office, etc., so that lack of smooth communications occurs frequently.
This paper looks to the point of view of better efficiency and a higher level for the construction-management, it proposes a new information communication network system for such large-scale work sites, and it reports in regard to evaluation of the sysytem through introduction to actual sites and operation there, as well as problems related to this.