ACT Government's Digital Archives Overhaul Hits a Snag: Duplicate Image Crisis Takes Centre Stage This Week

Thousands of duplicate digital images sitting across ACT government servers have become the focus of an urgent remediation effort this week, after a cross-agency audit flagged the problem as a significant drain on storage infrastructure and staff time. The Territory's Digital, Data and Technology Solutions directorate confirmed the audit's findings were circulated internally in late June, prompting action ahead of the new financial year budget cycle that kicked in on July 1.

The issue matters now because Canberra's public sector is midway through a multi-year push to consolidate legacy IT systems into shared cloud platforms. Duplicate image files — scanned documents, site photographs, planning maps and employee identification assets — bloat those platforms and inflate licensing costs. With the ACT government committed to moving a tranche of agency records onto a centralised system by December 2026, cleaning up the duplication problem first has become a precondition for the migration to proceed on schedule.

Where the Problem Is Concentrated

The duplication issue is particularly acute within two directorates. Transport Canberra and City Services, which manages infrastructure photography for projects including the Light Rail Stage 2B corridor running through Commonwealth Avenue and into Woden, has accumulated large volumes of near-identical site-progress images captured at different times by different contractors. The ACT Planning directorate, meanwhile, holds overlapping scanned maps and aerial imagery of growth corridors in Gungahlin and Belconnen, some of it imported from datasets originally managed by the National Capital Authority.

The Australian National University's Digital Humanities Hub on Acton campus has separately been working with the ACT Heritage Library in Parkes on a duplicate-detection pilot using open-source image hashing tools. That project, running since March 2026, is designed to test whether commodity software can flag near-duplicate images before they are ingested into the government's records management system, reducing the need for manual review downstream. The Heritage Library holds more than 400,000 digitised historical photographs, a collection that staff say has accumulated duplication problems over successive scanning campaigns going back to the early 2000s.

What the Numbers Look Like

Storage is not cheap. Commercial cloud object storage costs for ACT government contracts are understood to run at rates comparable to the broader Australian public sector market, where duplicated data has been identified by the Australian National Audit Office as a recurring inefficiency. The ACT's 2025-26 Budget allocated $14.3 million to the whole-of-government ICT consolidation program, according to the published budget papers released in June 2025. Project managers working within that envelope say unresolved duplication adds complexity and risk to the December migration deadline.

The ANU-Heritage Library pilot processed a sample set of 12,000 images between March and May this year. Results from that trial, shared at a Digital Preservation Network workshop held at the Canberra Museum and Gallery on London Circuit in May, showed that automated tools flagged roughly one in five images as a likely duplicate or near-duplicate. Extrapolated across the government's broader holdings, that ratio suggests a significant volume of redundant files — though a full census across all directorates has not yet been completed.

For public servants working in records and information management roles across buildings like Canberra Nara Centre in City Hill and the Macarthur House offices in Barton, the practical upshot this week is a renewed set of file-naming protocols and a mandatory metadata audit notice issued by Digital, Data and Technology Solutions. Agencies have been given until August 15 to submit an inventory of image repositories over 50 gigabytes in size.

The ANU-Heritage Library team is expected to publish its pilot findings in a report due in September. If the methodology holds up, the ACT government has flagged it may adopt the hashing approach as a standard pre-ingestion check across all directorates, potentially giving Canberra's public sector one of the more systematic duplicate-image management frameworks of any Australian state or territory government. Whether the December migration deadline holds will depend heavily on how quickly agencies work through those August inventories.