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 23FB0027 and 23FB0028 have near-identical descriptions about 190 m apart (funding year 2023; ₱67.55M, ₱57.90M). Worth checking whether they cover the same works. It is possible that these are sequential phases of a larger project, with each phase funded and contracted separately.

Public record entityConstruction of Road Dike Structure along Tagaytay-Libod River, Camalig, Albay

LocationCAMALIG (ALBAY), ALBAY, Region VContract 23FB0027

Amount₱67,548,527.29 sumbong source

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

Satellite before / after

Esri Wayback · ~0.5 m

Before capture: 2020-04-24 · Maxar

After capture: 2023-04-25 · Vantor

No post-completion imagery yet — the newest available capture predates the reported completion date.

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

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How this was checked

publish · confidence 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase-2' in the second title, while the first title has no phase marker. Per rule guidance, this is a classic 'unlabelled twin' case and should be published. Both projects are in the same year, same location, and have near-identical titles except for the phase marker. 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 Road Dike Structure along Tagaytay-Libod River, Camalig, Albay23FB0027	100%	September 14, 2023	September 14, 2023	—	completedsumbong source

Start: February 27, 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": "23FB0027",
  "fundingYear": 2023,
  "municipality": "CAMALIG (ALBAY)",
  "distanceMeters": 190.14140978112314,
  "titleSimilarity": 0.9593240093240093
}

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