The series includes records from: the Transportation, Water, and Telecommunications Department (TWT) from 1978 to 1982; the Urban Projects Department (URB) from 1978 to 1982; the Water and Urban Development Department (WUD) from 1983 to 1987; and the Transportation Department (TRP) from 1983 to 1987. These departments were primarily mixed sector departments, therefore, the records cover a broad range of topics, including but not limited to: highway maintenance and development; port development; railways;maritime transportation; water and sanitation systems maintenance and development; tourism services and infrastructure development; urban development; and telecommunication infrastructure and public utilities development. The records include: internal and external correspondence, including letters and memoranda; initiating memoranda; project files; project completion and audit reports; sector support and research files; sector policy papers; back to office reports (BTOs); terms of reference (TORs); and departmental publications. Records related to the Bank's Urban Project Program, which was originally launched in 1975 and supported by URB and later WUD are also included. The Urban Poverty Program records primarily include correspondence and reports related to various sector projects done in support of the program.