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 22NE0038 and 23NE0028 have near-identical descriptions about 200 m apart (funding years 2022, 2023; ₱29.70M, ₱9.79M). Worth checking whether they cover the same works. The two contracts may cover different parts or structures within Barangay Tag-abaca, such as a specific bridge area and a general flood control section.

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

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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, both refer to 'Construction of Flood Control Structure' in Barangay Tag-abaca, Basilisa, Dinagat Islands, and are only 200 meters apart. The only additional words in the second title are 'at Tag-Iho Br. I', which may refer to a specific bridge or spot within the same barangay, but this is not a clear phase, package, or section marker, nor a different barangay or sitio. There are no distinguishing markers that would indicate these are definitely separate works. The evidence is complete and meets the rule's criteria for publishing.

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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": 199.9702240914801,
  "titleSimilarity": 0.8958333333333334
}

Source documents

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