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 23II0016 and 24II0043 have near-identical descriptions about 245 m apart (funding years 2023, 2024; ₱54.93M, ₱48.99M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or expansion of the first, or that the drainage system was separated from the main flood control structure in the project scope.

Public record entityConstruction of Palapag Flood Control Structure and Drainage System, Palapag River Basin, Palapag, Northern Samar

LocationPALAPAG (NORTHERN SAMAR), NORTHERN SAMAR, Region VIIIContract 23II0016

Amount₱54,932,000.00 sumbong source

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

Satellite before / after

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2020-06-01 · Maxar

After capture: 2020-06-01 · Vantor

No imagery since construction began — latest capture 2020-06-01

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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are nearly identical, with the only difference being the addition of 'and Drainage System' in the first title. There are no phase, package, section, or place markers distinguishing them, and both are located in the same municipality about 245 meters apart. This fits the guidance for publishing: one title is the other plus only a generic work type, and there is no clear marker that they are distinct works. Innocent explanations (such as a continuation or expansion of scope) are plausible but do not block publication.

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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 Palapag Flood Control Structure and Drainage System, Palapag River Basin, Palapag, Northern Samar23II0016Flood control	100%	November 3, 2023	October 24, 2023	—	completedsumbong source

Start: February 7, 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": "23II0016",
  "coordinates": {
    "lat": 12.550138,
    "lon": 125.11754
  },
  "municipality": "PALAPAG (NORTHERN SAMAR)",
  "distanceMeters": 244.67176654604606,
  "titleSimilarity": 0.9029126213592233
}

Source documents

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