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 24NE0025 and 23NE0028 have near-identical descriptions about 381 m apart (funding years 2023, 2024; ₱57.19M, ₱9.79M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or expansion of the first, or covers a different part of the same bridge or flood control structure.

Public record entityConstruction of Flood Control Structure at Tag-Iho Br. I, Barangay Tag-abaca, Basilisa, Dinagat Islands

LocationBASILISA (RIZAL) (DINAGAT ISLANDS), DINAGAT ISLANDS, Region XIIIContract 23NE0028

Amount₱9,794,998.31 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: 2011-10-02 · Maxar

After capture: 2011-10-02 · Vantor

No imagery since construction began — latest capture 2011-10-02

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

Click imagery to enlarge

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How this was checked

publish · confidence 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The titles are near-identical and refer to the same bridge/area (Tag-iho Bridge I, Tag-abaca, Basilisa, Dinagat Islands), with only minor wording differences ('Bridge' vs 'Br.' and 'Barangay' added in one title). There are no phase/package/section markers or different place names that would distinguish them as separate works. The projects are about 381 meters apart, which is within the plausible range for the same site or immediate vicinity. 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 at Tag-Iho Br. I, Barangay Tag-abaca, Basilisa, Dinagat Islands23NE0028Flood control	100%	August 3, 2023	July 13, 2023	—	completedsumbong source

Start: March 8, 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": "23NE0028",
  "coordinates": {
    "lat": 10.058941,
    "lon": 125.60195
  },
  "municipality": "BASILISA (RIZAL) (DINAGAT ISLANDS)",
  "distanceMeters": 381.49611436383583,
  "titleSimilarity": 0.9556650246305419
}

Source documents

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