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 24BE0017 and 23BE0062 have near-identical descriptions about 454 m apart (funding years 2023, 2024; ₱139.91M, ₱96.18M). Worth checking whether they cover the same works. It is possible that the second project is a legitimate extension or continuation of the first, covering additional areas.

Public record entityConstruction of Flood Mitigation Structure along Ilagan River, Brgy. Alinguigan 1st, City of Ilagan, Isabela

LocationILAGAN CITY (CAPITAL) (ISABELA), ISABELA, Region IIContract 23BE0062

Amount₱96,177,084.00 sumbong source

Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.

Satellite before / after

Esri Wayback · ~0.46 mLocation approximate

Before capture: 2020-02-16 · Maxar

After capture: 2025-06-02 · 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 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical and refer to overlapping locations along the Ilagan River in the same city, with one title covering 'Barangay Alinguigan 1st to Barangay Alinguigan 2nd' and the other only 'Brgy. Alinguigan 1st.' There are no distinguishing phase, package, or section markers, and the only difference is the broader scope in one title. The projects are about 454 meters apart and funded in consecutive years by the same contractor. This fits the rule's guidance for publishing when one title is the other plus an extra place, as it may indicate possible double funding or an unlabelled continuation.

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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 Mitigation Structure along Ilagan River, Brgy. Alinguigan 1st, City of Ilagan, Isabela23BE0062Flood control	100%	November 24, 2023	August 10, 2023	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: March 2, 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": "23BE0062",
  "coordinates": {
    "lat": 17.1217,
    "lon": 121.9242
  },
  "municipality": "ILAGAN CITY (CAPITAL) (ISABELA)",
  "distanceMeters": 453.7301117915125,
  "titleSimilarity": 0.891566265060241
}

Source documents

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

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Where this project sits