Intercepting Drain

A ditch or trench filled with a pervious filter material around a subdrainage pipe.

Interceptor Sewer

A sewer that conveys flow from a trunk sanitary sewer or dry weather flow plus a small volume of stormwater from a trunk combined sewer to a wastewater treatment plant.

Intergranular Stress Corrosion Cracking (IGSCC)

StressThe load applied per unit area of material. Often expressed as pounds of force per square inch (psi). corrosion cracking in which the cracking occurs along grain boundaries.

Interjack Pipes

Pipes specially designed for use with an Intermediate JackingThe actual pushing of pipe or casing in an excavated hole. This is usually done with hydraulic cylinders (jacks), but has been done with mechanical jacks, air jacks and just about anything else that man could imagine. Station.

Interjack Station

See Intermediate Jacking Station.