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 24AF0141 and 23A00132 have near-identical descriptions about 771 m apart (funding years 2023, 2024; ₱19.28M, ₱96.46M). Worth checking whether they cover the same works. These may be sequential or adjacent phases of flood control works along the same river in the same barangay.

Public record entityConstruction of Flood Control Structure along Aringay River Basin, Brgy. Magsaysay, Tubao, La Union

LocationTUBAO (LA UNION), LA UNION, Region IContract 24AF0141

Amount₱19,284,998.86 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 mLocation approximate

Before capture: 2023-03-23 · Maxar

After capture: 2025-02-02 · 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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The titles are near-identical and refer to the same barangay and river, with only minor wording differences ('Basin' and 'Brgy.' vs 'Barangay'), which are not distinguishing markers per the rule. The projects are about 771 meters apart, which is outside the 100m threshold for identical-location, but the high title similarity and same barangay/river suggest possible overlap or continuation. Both records are present and complete.

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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 Aringay River Basin, Brgy. Magsaysay, Tubao, La Union24AF0141Flood control	100%	October 14, 2024	March 16, 2025	—	completedsumbong source

Start: May 7, 2024 · 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": "24AF0141",
  "coordinates": {
    "lat": 16.3491,
    "lon": 120.4257
  },
  "municipality": "TUBAO (LA UNION)",
  "distanceMeters": 771.2369731641783,
  "titleSimilarity": 0.9696969696969697
}

Source documents

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