: Focuses on bridge design specifications, commonly used in North American and international projects. IRC 112 / IRC 21
Box culverts are the workhorses of civil infrastructure. Whether carrying a storm drain under a suburban road or providing a wildlife crossing beneath a major highway, these reinforced concrete structures require meticulous design to handle hydraulic flow, earth pressure, and heavy vehicle loads. box culvert design calculations xls link
However, for preliminary design, permitting, and bid documents, the XLS remains the industry workhorse. : Focuses on bridge design specifications, commonly used
: A downloadable template for structural analysis and load calculation. Hydraulic Design Sheets USACE Culvert Worksheet : Focuses on bridge design specifications