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 23DI0017 and 23D00067 have near-identical descriptions about 1790 m apart (funding year 2023; ₱72.35M, ₱154.40M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or expansion of the first, but the first was not labeled as a phase.

Public record entityConstruction of Revetment at Brgy. Maahas, Phase2, Los Baños, Laguna

LocationLOS BAÑOS (LAGUNA), LAGUNA, Region IV-AContract 23D00067

Amount₱154,399,847.90 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: 2020-03-14 · Maxar

After capture: 2025-02-01 · 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

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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 'Phase2' in the second title, while the first title has no phase/package marker. Per the rule, if one title has a phase marker and the other does not, this is a classic 'unlabelled twin' scenario and should be published. Both projects are in the same barangay, same year, and are of the same type of work, with substantial contract amounts. The evidence is complete and the public can check the records.

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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 Revetment at Brgy. Maahas, Phase2, Los Baños, Laguna23D00067Flood control	100%	June 22, 2024	June 22, 2024	—	completedsumbong source

Start: March 31, 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": "23D00067",
  "fundingYear": 2023,
  "municipality": "LOS BAÑOS (LAGUNA)",
  "distanceMeters": 1790.2947912119157,
  "titleSimilarity": 0.952067963335569
}

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