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 23DM0067 and 23DM0063 have near-identical descriptions about 634 m apart (funding year 2023; ₱24.75M, ₱99.00M). Worth checking whether they cover the same works. It is possible that the second project is a planned continuation or expansion of the first, but the first was not labeled as a phase.

Public record entityConstruction of Flood Control Structure along Agdangan River (Phase II), Agdangan, Quezon

LocationAGDANGAN (QUEZON), QUEZON, Region IV-AContract 23DM0063

Amount₱99,000,000.00 sumbong source

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

Satellite before / after

Esri Wayback · ~0.46 mLocation approximate

Before capture: 2021-08-05 · Maxar

After capture: 2025-09-19 · Vantor

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 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase II' in the second title, while the first title has no phase marker. Per the rule, if one title has a phase/package marker and the other does not, this is a classic 'unlabelled twin' case and should be published. Both projects are in the same municipality, same river, same year, and are only 634 meters apart. 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 Flood Control Structure along Agdangan River (Phase II), Agdangan, Quezon23DM0063Flood control	100%	July 3, 2024	December 6, 2023	—	completedsumbong source

Start: April 11, 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": "23DM0063",
  "fundingYear": 2023,
  "municipality": "AGDANGAN (QUEZON)",
  "distanceMeters": 634.2217529427606,
  "titleSimilarity": 0.9598962834917891
}

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