Curb Opening Inlet Weir Equations Formulas Design Calculator
Solving for flow depth.
Note: equation applies to flow depths up to opening height
Inputs:
Conversions:
| capture flow rate or interception capacity (Qi) | = | 0 | | = | 0 | foot^3/second |
| curb opening length (L) | = | 0 | | = | 0 | foot |
| curb opening width (W0) | = | 0 | | = | 0 | foot |
Solution:
| flow depth (d) | = | HAS NOT BEEN CALCULATED | |
Other Units:
| Q |
= |
gutter flow rate |
| n |
= |
Manning's coefficient |
| Sx |
= |
roadway cross slope |
| S |
= |
longitudinal slope |
| T |
= |
flow width |
| d |
= |
flow depth at curb |
| a |
= |
depressing depth |
References - Books:
Martin Wanielista, Robert Kersten and Ron Eaglin. 1997. Hydrology Water Quantity and Quality Control. John Wiley & Sons. 2nd ed.
