Non-Man Entry

Size of pipe, duct or bore less than that for man-entry.

Non-Uniform Corrosion

CorrosionThe destruction of a material or its properties because of a reaction with its (environment) surroundings. that attacks small, localized areas of the pipe. Usually results less metal loss than uniform corrosion but causes more rapid failure of the pipe due to pits and holes.

Noncohesive Soils

See CohesionlessA material that does not readily bond with other particles. Soils.

Notch Sensitivity

The extent to which an inclination to fracture is increased by a notch, crack, scratch, or sudden change in section.

Notice of Award

The written notice by owner to the apparent successful bidder stating that upon compliance with the conditions precedent to be fulfilled by him within the time specified, the owner will execute and deliver the agreement to him.