Below are links to scans of the plans of Ostia from Scavi di Ostia I.

Building phases

From the third century BC to the end of the republic

From Augustus to the entire Flavian period

The Trajanic era

The Hadrianic era

The Antonine era (Antoninus Pius, Marcus Aurelius, Commodus)

The third century

The fourth and fifth century

General plan

Overview

Overview, left

Overview, right

Plan 1, left

Plan 1, right

Plan 2, left

Plan 2, right

Plan 3, left

Plan 3, right

Plan 4, left

Plan 4, right

Plan 5, left

Plan 5, right

Plan 6, left

Plan 6, right

Plan 7, left

Plan 7, right

Plan 8, left

Plan 8, right

Plan 9, left

Plan 9, right

Plan 10, left

Plan 10, right

Plan 11, left

Plan 11, right

Plan 12, left

Plan 12, right

Plan 13, left

Plan 13, right

Plan 14, left

Plan 14, right