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 23A00128 and 24AF0053 have near-identical descriptions about 1270 m apart (funding years 2023, 2024; ₱144.72M, ₱19.79M). Worth checking whether they cover the same works. It is possible these are separate segments or extensions of flood control works along the same river in the same barangay.

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

LocationTUBAO (LA UNION), LA UNION, Region IContract 24AF0053

Amount₱19,794,859.75 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 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical, both refer to flood control structures along the Aringay River (or River Basin) at Brgy. Anduyan, Tubao, La Union, and are about 1.27 km apart. There are no phase, package, section, or other distinguishing markers in either title, and the only differences are 'Barangay' vs 'Brgy.' and 'River' vs 'River Basin', which are not sufficient to distinguish them as separate works per the rule. 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 Flood Control Structure along Aringay River Basin, Brgy. Anduyan, Tubao, La Union24AF0053Flood control	100%	August 5, 2024	February 16, 2025	—	completedsumbong source

Start: February 27, 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": "24AF0053",
  "coordinates": {
    "lat": 16.348852,
    "lon": 120.448395
  },
  "municipality": "TUBAO (LA UNION)",
  "distanceMeters": 1269.9191676770013,
  "titleSimilarity": 0.9690721649484536
}

Source documents

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