This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
NTS Concrete structure. Concrete Structure located northeast of the railroad trestle in Frenchman Flat br This structure was designed for the Tests on Response of Wall and Roof Panels and the Transmission of Load to Supporting Structure program The concrete structure which consisted of several reinforced concrete test cells that