Methodology and Estimates of Scour at Selected Bridge Sites in Alaska

Abstract

In this report, temperature is reported in degrees Fahrenheit (°F), which can be converted to degrees Celsius (°C) by the equation°C = (°F-32) / 1.8 Sea level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929, formerly called "Sea-Level Datum of 1929"), which is derived from a general adjustment of the first-order leveling networks of the United States and Canada. In the adjustment, sea levels from selected tide stations in both countries were held fixed. The year indicates the time of the last general adjustment. This datum should not be confused with mean sea level. Altitudes are the same in both the local coordinate system and the Universal Transverse Mercator system.