The second option available for computing is to minimize the culvert width for a specified head. When selecting the Compute button with this option specified you will see the first DOS window shown below. You will need to enter the allowable head for which you wish HY8 to compute a culvert width that accommodates the defined discharge without overtopping. Once you enter the head value select the Return key and HY8 will perform the analysis and display the results as shown in the second DOS window below.
Related Topics:
HY8 General Specifications and Limitations
Multiple Culvert Analysis and Overtopping
Single Culvert Analysis