A database reconciliation system stores construction project data, including project specification data for each of a plurality of projects and contractor data for each of a plurality of contractors. A server automatically receives observational data from a set of construction devices and stores the observational data in an electronic database. Each observational datum represents an aspect of a respective construction site, such as activity by construction equipment. The server associates the observational data with contractors, and a data reconciliation module automatically associates the observational data with projects. A comparator automatically identifies a respective project specification requirement in the project specification data of the associated project for which the observational datum provides evidence that the project specification requirement has been met. For met requirements, the comparator stores requirement completion confirmation data in the electronic database for the respective project specification requirement and the associated contractor, thereby providing backing documentation for payments between project stakeholders.