barricade

A barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.

A barrier (usually thrown up hastily) to impede the advance of an enemy.

“they stormed the barricade”

Render unsuitable for passage.

“barricade the streets”

Block off with barricades.

Prevent access to by barricading.

“The street where the President lives is always barricaded”