Canberra's Digital Archive Problem: The Numbers Behind the ACT Government's Duplicate Image Crisis

The ACT Government holds tens of thousands of duplicate image files spread across multiple agency document management systems, a problem that archive and records specialists say has compounded every year since agencies shifted to cloud-based storage after 2018. The sheer volume of redundant digital content is now large enough to meaningfully affect storage costs and, in some cases, delay retrieval of public records.

This matters right now because the ACT Government's digital records framework is under active review ahead of a planned upgrade to Territory Records Office systems scheduled for late 2026. Agencies that fail to clean up duplicate content before migration risk carrying the problem — and its costs — into the new environment. For a public service workforce of roughly 23,000 people, many of them working out of offices concentrated along London Circuit and Northbourne Avenue, the administrative drag of poorly managed image libraries is a genuine operational headache.

What the Numbers Actually Show

Industry benchmarks from records management research suggest that large government organisations typically find between 20 and 40 percent of stored image files are exact or near-exact duplicates. Applied to the ACT Government's position, that range implies a substantial portion of storage expenditure is spent on content that serves no unique purpose. Cloud storage pricing for enterprise government contracts in Australia currently sits in the range of $0.02 to $0.05 per gigabyte per month depending on tier and redundancy settings, meaning even a modest reduction in duplicate volume translates to measurable annual savings.

The Australian National University's Fenner School precinct and the University of Canberra's Bruce campus both run digital asset management programs that have confronted the same issue at an institutional scale. UC's library services undertook a deduplication audit of its digitised collection in 2024, identifying duplicate scan files that had accumulated across multiple departmental servers over a decade of piecemeal digitisation projects. The exercise freed up storage capacity and, more importantly, cleaned the metadata environment so that search results returned accurate, unique records rather than repeated versions of the same image.

For ACT Government agencies, the stakes are higher because the Territory Records Act 2002 imposes specific obligations around how official records — including images that form part of planning documents, procurement files, and ministerial correspondence — are stored, retrieved and eventually disposed of. Duplicate files complicate compliance because they create ambiguity about which version of an image constitutes the authoritative record. When a planning file for a development in Gungahlin or a construction photo attached to a light rail Stage 2 corridor review exists in four copies across three servers, records officers must determine which instance carries the correct metadata before the file can be lawfully disposed of or transferred to the Territory's archival custody.

Cleaning Up Before the Migration Window Closes

Deduplication software has become standard in enterprise IT procurement, and several ACT Government agencies are understood to have already licensed tools capable of automated hash-based matching — the process by which files are compared using a unique digital fingerprint rather than relying on file names or folder locations. Hash matching catches duplicates even when files have been renamed or moved, which is the most common way duplicates accumulate inside large bureaucracies.

The practical advice from records management professionals is consistent: run a deduplication audit before any system migration, not after. Post-migration cleanup is significantly more expensive because data has already been moved, indexed and in some cases replicated across backup environments. For ACT agencies facing the late-2026 deadline, the window to complete that work without incurring double-handling costs is closing. Agencies in the Civic precinct and at the Hume and Fyshwick service delivery sites that maintain large photographic and mapping image libraries should be prioritising this work now.

The Territory Records Office has published general guidance on digital records management on its website, though specific agency-by-agency deduplication targets have not been made public. The broader point, backed by the numbers, is straightforward: carrying redundant data into a new system does not make it disappear — it just makes it more expensive.