Calculations performed using the Modified Manning equation by Izzard.
Determine the inlet capacity in sag (ponding) conditions by use of the weir and orifice equations.
Understand how and why the Neenah vane style grates are the best performing grates for on grade conditions.
This specialty product can be adapted with the use of an inlet to increase the percent of flow captured by ordinary inlets with little additional cost.
A cost-effective new product offering by Neenah Foundry that makes trench installation quick and inexpensive.
It also provides hydraulic information on trench slope and outlet capacities developed on full size testing at the University of Wisconsin.