Indicator C3 — Duplicate or Near-Duplicate Projects

AI-verified / Na-verify ng AI Data as of October 21, 2026

Duplicate or Near-Duplicate Projects

Very similar descriptions within ~100m or identical coordinates across contracts/years.

This is a statistical anomaly or indicator worth examining — not proof of wrongdoing, fraud, or corruption against any person.

Indicator: contracts 23II0017 and 24II0039 have near-identical descriptions about 84 m apart (funding years 2023, 2024; ₱50.41M, ₱48.92M). Worth checking whether they cover the same works. The second contract may be a continuation or next phase that was not labeled as such in the title.

Public record entityConstruction of Seawall (Phase I) Along Bantayan Bay, San Roque, Northern Samar

LocationSAN ROQUE (NORTHERN SAMAR), NORTHERN SAMAR, Region VIIIContract 23II0017

Amount₱50,411,055.55 sumbong source

Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.

Satellite before / after

Esri Wayback · ~0.31 mLocation approximate

Before capture: 2021-09-26 · Maxar

After capture: 2021-09-26 · Vantor

No imagery since construction began — latest capture 2021-09-26

Satellite comparison for public reference — not proof of completion or non-completion.

Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.

Imagery © Esri, Maxar, Earthstar Geographics, and the GIS User Community

Caveats & resolution

Esri World Imagery Wayback (~0.5–1 m); dates are archive release dates, not capture timestamps.
Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.
DPWH coordinates can be approximate; marker shows the imagery center (may be snapped to riverbank/coast).

Disclaimer

Click imagery to enlarge

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How this was checked

publish · confidence 0.80

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase I' in the first title, while the second title has no phase or package marker. Per rule guidance, if one title has a phase/package marker and the other has none, this is a classic 'unlabelled twin' case and should be published. The locations are very close (84 m), the titles are otherwise near-identical, and both are in the same municipality. The evidence is complete and checkable.

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Project completion

Schedule fields from DPWH transparency portal records and the Sumbong sa Pangulo flood-control list — not inferred beyond those columns.

Reported complete (DPWH): 1Ongoing: 0Delayed: 0Status unknown: 0

Project	Prog.	Target end	Actual end	Days late	Status
Construction of Seawall (Phase I) Along Bantayan Bay, San Roque, Northern Samar23II0017Flood control	100%	December 16, 2023	October 10, 2023	—	completedsumbong source

Start: March 7, 2023 · Source fetched October 21, 2026

Rule Definition

Title similarity + distance or shared coordinates within municipality.

Triggering Data & citations

Similar project description near another contract in the same municipality

{
  "contractId": "23II0017",
  "fundingYear": 2023,
  "municipality": "SAN ROQUE (NORTHERN SAMAR)",
  "distanceMeters": 83.76031843787702,
  "titleSimilarity": 0.915263254448725
}

Source documents

sumbong — https://raw.githubusercontent.com/rukku/sumbongsapangulo.ph-datasets/main/flood_control_projects.geojsonFetched October 21, 2026

Possible Innocent Explanations

Phased construction seasons
Upstream/downstream segments recorded separately