Peter Rowe worked on a large number of international civil engineering projects, problems and proposals, in a wide variety of countries. These included: jetty design in Iran; the Falklands Islands Airport; a new dock in Newcastle, Australia; Magodro Dam in Fiji; quay walls failure in Kuantan Port, Malaysia; a new wharf in Puerto Bolivar, Ecuador; the Ayalon Canal Flood Relief Scheme in Tel Aviv, Israel; the Oosterschelde Storm Surge Barrier in The Netherlands (which necessitated the installation of a diving bell, and underwater site investigations using the bell); the two 8-mile crossings of the Jamuna River in Bangladesh, which scours 60 metres deep, for electricity, gas, road, and rail links; the Hat Creek Thermal Power Project in Canada; and the construction of grain silos in Jeddah and Riyadh, Saudi Arabia.
Rowe's international renown led to the Italian Government's request for advice on how to halt the settlement of Venice. The Venice material includes photographs, press cuttings, articles, and separated material that was reunited with the archive in 2003. After his retirement from the University of Manchester, Rowe continued to work on various overseas projects and travelled extensively in the course of his work on a regular basis until his death in 1997.
From 1972 onwards Rowe conducted research into the performance of structures when subjected to cyclic loading due to major waves (30 m high) and to cyclic loading from ice fields. This work had been made possible by using the 700 g-tonne centrifuge which Rowe had developed at the Simon Engineering Laboratories at the University of Manchester from 1969. Centrifuge model-testing material occurs in the Amsterdam (cylindrical underground car park), Oosterschelde Storm Surge Barrage, and Jamuna River Crossing project files.