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 23A00129 and 24A00154 have near-identical descriptions about 1548 m apart (funding years 2023, 2024; ₱144.74M, ₱144.75M). Worth checking whether they cover the same works. These may be sequential or adjacent segments of flood control works that were not labeled as separate phases.

Public record entityConstruction of Flood Control Structure Along Aringay River, Barangay Rizal, Tubao, La Union

LocationTUBAO (LA UNION), LA UNION, Region IContract 24A00154

Amount₱144,749,743.40 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

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 two projects have near-identical titles with no distinguishing markers (no phase, package, section, or different place names), are in the same barangay and municipality, and are funded in consecutive years by the same contractor. The only difference is capitalization and minor wording, which are not distinguishing. The distance is 1548 meters, which is above the 100m threshold, but the rule is for near-identical titles within the same municipality, and the code has already flagged this as a valid case. Innocent explanation is possible (e.g., sequential or adjacent segments not labeled as such), but the pattern is genuinely unusual and worth public attention.

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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 Rizal, Tubao, La Union24A00154Flood control	100%	January 11, 2025	July 26, 2024	—	completedsumbong source

Start: March 15, 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": "24A00154",
  "coordinates": {
    "lat": 16.36713,
    "lon": 120.42992
  },
  "municipality": "TUBAO (LA UNION)",
  "distanceMeters": 1547.5181629207934,
  "titleSimilarity": 1
}

Source documents

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