Gravity Sewer Design:  

• Calculate the velocity (V) of gravity flow in an arch pipe.

• Calculate the velocity (V) of gravity flow in a round pipe.

• Calculate the flow volume (Q) of gravity flow in an arch pipe.

• Calculate the flow volume (Q) of gravity flow in a round pipe.

• Calculate the diameter (D) for a flow volume (Q) of gravity flow in a round pipe.

• Calculate the energy grade line slope (S) required to produce a flow volume (Q) in an arch pipe.

• Calculate the energy grade line slope (S) required to produce a flow volume (Q) in a round pipe.

• Calculate the minor losses of a pipe under gravity flow conditions and pressure flow conditions.  Minor losses are used to check sewer system surcharge.

• Calculations for the design of storm drain inlets. Solve calculations for curb inlets, slotted inlets and grade inlets under a variety of flow conditions.

• Calculate the load on rigid pipe from trench backfill over the pipe.

• Calculate the load on flexible pipe from the trench backfill over the pipe.

• Calculate the load on a pipe resulting from a distributed load at grade above the pipe.

• Calculate the load on a pipe resulting from a point load at grade above the pipe.

• Calculate the capacity of an existing 18" concrete stormsewer pipe. Determine the required concrete pipe diameter to carry 18 cfs. Determine the required diameter if the pipe was PVC.