The Angle of Repose

The Angle of Repose

One of the better references regarding basic hydraulics is a book published in 1943 – Audels Pumps, Hydraulics, Air Compressors: A Practical Treatise by Frank D. Graham. Here is an interesting graphics showing the “angle of repose” for a typical pile of material. The “angle of repose” is defined as”The greatest angle with the horizontal at […]

Stone Masonry

Stone Masonry

Standard specifications today may reference standard plans (details), but our local specifications don’t have details within the text. That was not necessarily the case 70 years ago. I recently looked through “Specifications for Construction of Roads and Bridges in National Forests and National Parks, 1941”, published by the Federal Works Agency Public Works Administration. They […]