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 22NG0020 and 23NG0046 have near-identical descriptions about 676 m apart (funding years 2022, 2023; ₱48.99M, ₱47.52M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or extension of the first, or covers a nearby section of the same river.

Public record entityConstruction of Flood Mitigation Structure along Magallanes River, Brgy. Lahi, Gigaquit, Surigao del Norte

LocationGIGAQUIT (SURIGAO DEL NORTE), SURIGAO DEL NORTE, Region XIIIContract 23NG0046

Amount₱47,523,238.44 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 approximateLocation unverified

Before capture: 2019-05-06 · Maxar

After capture: 2025-08-09 · 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 titles are near-identical, with only 'Barangay' vs 'Brgy.' as a difference, which is not a distinguishing marker per the rules. Both projects are in the same barangay and municipality, and the only difference is the funding year and a minor spelling variant. The distance is 676 meters, which is above the 100m threshold, but the rule is about near-duplicate titles within the same municipality, and the code has already flagged this as a valid case. There are no distinguishing markers or different sites named.

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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 Magallanes River, Brgy. Lahi, Gigaquit, Surigao del Norte23NG0046Flood control	100%	October 5, 2023	July 31, 2023	—	completedsumbong source

Start: March 24, 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": "23NG0046",
  "coordinates": {
    "lat": 9.4985,
    "lon": 125.7319
  },
  "municipality": "GIGAQUIT (SURIGAO DEL NORTE)",
  "distanceMeters": 675.6803842773185,
  "titleSimilarity": 1
}

Source documents

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