Urban Framework Plans are saved in .djvu format. You will need to install DjVu Viewer in order to few the files. This should only take a few minutes. See link below:
Download DjVu Viewer
Urban Framework Plans
Drumkeeran Urban Framework PlanDrumshanbo Urban Framework PlanBallinamore Urban Framework PlanMohill Urban Framework PlanManorhamilton Urban Framework PlanDromahaire Urban Framework Plan