About the Flood Maps
The Report of the Flood Commission of Pittsburgh, PA contains the results of the surveys, investigations and studies made by the commission for the purpose of determining the causes of, damage by, and methods of relief from floods in the Allegheny, Monogahela and Ohio rivers at Pittsburgh. The study also commented on the benefits to navigation, sanitation, water supply and water power to be obtained by river regulation. The 14 maps were included in the publication by the Pittsburgh, Murdoch, Kerr & Company in 1912. The survey took place between July-October 1909.
In addition to flood level data, these maps depict river depths, land contour, streets, building footprints, railroads, bridges, and various landmarks.
Browsing the Maps
Each individual map plate can be viewed by making a selection from the index map below. The map will appear in a new browser window. This index map serves as the only navigation method for browsing the maps. A larger version of the index map is also available. Please note that the maps are not searchable.
Acquiring Map Reproductions
Individual map plates can be freely downloaded as 200 dpi JPG images by following the Download Map link within each plate description. You can also purchase a copy of a map by placing a map reproduction order with us.