Download Free PDF Download PDF Download Free PDF View PDF. Triangular Cross Section. 2 Open Channel Flow Anchor. . The culvert horizontal and vertical alignment should approximate that of the natural channel. Channels can be rectangular or partially filled circular pipes. People also downloaded these PDFs. PhD PE in Highway Engineering 2016 Hydraulic Radius. For comparation of the EGS heat mining under SCO 2 fracturing and hydraulic fracturing the fracture morphology obtained by hydraulic fracturing at 460 min and SCO 2 fracturing at 125 min are used as the heat exchange channels of EGS which are selected after the fracture connected for 25 min. Full PDF Package Download Full PDF Package. Culvert design with the best hydraulic performance and least environmental impacts occurs when the roadway alignment is normal to the flow in the channel and is located on a relatively straight and stable section of the c...