This workbook aids in analyzing the flow conditions in circular and box culverts:

1.      To calculate normal and critical flow conditions.

2.      To determine headwater depth for a culvert by comparing inlet and outlet control.

3.      To determine the required outlet protection and riprap sizes for a culvert.

4.      To determine the vertical profile along the culvert.

MHFD-Culvert_v4.01.xlsm