You're quite welcome, and I'm delighted that you've found it to be worthwhile :-)
http://en.wikipedia.org/wiki/Organisation_Todt
Organisation Todt
From Wikipedia, the free encyclopedia
The Organisation Todt (OT) was a Third Reich civil and military engineering group in Germany eponymously named for its founder, Fritz Todt, an engineer and senior Nazi figure. The organization was responsible for a huge range of engineering projects both in pre-World War II Germany, and in Germany itself and occupied territories from France to Russia during the war.