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 23IA0023 and 24IA0048 have near-identical descriptions about 82 m apart (funding years 2023, 2024; ₱4.79M, ₱4.89M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or additional phase of the first, but the first contract did not specify a phase.

Public record entityConstruction of Flood Control Structure, Barangay Anislagan, Naval, Biliran

LocationNAVAL (CAPITAL) (BILIRAN), BILIRAN, Region VIIIContract 23IA0023

Amount₱4,790,143.20 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: 2021-07-27 · Maxar

After capture: 2025-11-17 · 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

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 only distinguishing marker is 'Phase IV' in the second title, while the first title has no phase or package marker. According to the rule-specific guidance, if one title has a phase/package marker and the other has none, this should be published as a possible unlabelled twin. The locations are only 82 meters apart, and the rest of the title is identical, referring to the same barangay and municipality. The evidence is complete and checkable.

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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, Barangay Anislagan, Naval, Biliran23IA0023Flood control	100%	May 5, 2023	May 5, 2023	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: February 20, 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": "23IA0023",
  "coordinates": {
    "lat": 11.529818,
    "lon": 124.44645
  },
  "municipality": "NAVAL (CAPITAL) (BILIRAN)",
  "distanceMeters": 82.01042251248238,
  "titleSimilarity": 0.9803921568627451
}

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