Is street a common noun or proper noun?

The Word street is a commonnoun, a general Word for any street anywhere.

For example: The street was deserted.

The Word street is a proper noun as the name of a specific street.

For example: Turn left on Maple Street.

A proper noun is the name of a person, place, thing, or a title; for example:

• DELLa Street (Perry Mason's secretary)
• Street, MD (population 6,135)
• Sweet Street Desserts, Reading, PA
• The Wall Street Journal
• '42nd Street' (1933) movie with Ruby Keeler