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 23A00132 and 24AF0051 have near-identical descriptions about 1307 m apart (funding years 2023, 2024; ₱96.46M, ₱29.69M). Worth checking whether they cover the same works. The second project may simply be a continuation or additional package of the first, covering a different segment of the same river in the same barangay.

Public record entityConstruction of Flood Control Structure along Aringay River, Barangay Magsaysay, Tubao, La Union

LocationTUBAO (LA UNION), LA UNION, Region IContract 23A00132

Amount₱96,463,694.46 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: 2021-04-03 · Maxar

After capture: 2025-02-02 · 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 0.80

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The titles are near-identical and refer to the same river and barangay in the same municipality, with only 'Package 4' distinguishing the second title. Per the rule, if one title has a package marker and the other does not, and there are no other distinguishing markers (such as different phases, sections, or locations), this should be published as a possible unlabelled twin or continuation. The distance (1307m) is within the same barangay and river context, and the works could plausibly overlap or be continuations. 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 Aringay River, Barangay Magsaysay, Tubao, La Union23A00132Flood control	100%	December 23, 2023	November 13, 2023	—	completedsumbong source

Start: February 14, 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": "23A00132",
  "coordinates": {
    "lat": 16.354328,
    "lon": 120.43045
  },
  "municipality": "TUBAO (LA UNION)",
  "distanceMeters": 1306.601883921399,
  "titleSimilarity": 0.9238578680203046
}

Source documents

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