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 22AA0128 and 23AA0129 have near-identical descriptions about 276 m apart (funding years 2022, 2023; ₱49.00M, ₱62.72M). Worth checking whether they cover the same works. It is possible that the second contract is a continuation or extension of the first project, but this is not clearly labeled in the titles.

Public record entityConstruction of Flood Control Structure along Bislak River, Brgy. San Ramon, Vintar, Ilocos Norte

LocationVINTAR (ILOCOS NORTE), ILOCOS NORTE, Region IContract 23AA0129

Amount₱62,720,200.89 sumbong source

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

Satellite before / after

Esri Wayback · ~0.31 mLocation approximate

Before capture: 2019-02-06 · Maxar

After capture: 2019-02-06 · Vantor

No imagery since construction began — latest capture 2019-02-06

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 the same river and barangay, and are only 276 meters apart. The only difference is that one title specifies a chainage (0+000-0+836) and uses the plural 'Structures', while the other omits the chainage and uses the singular 'Structure'. There are no phase, package, or section markers, and no differing place names. This fits the guidance for publishing as a possible unlabelled continuation or duplicate funding for the same or overlapping works.

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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 along Bislak River, Brgy. San Ramon, Vintar, Ilocos Norte23AA0129Flood control	100%	December 16, 2023	December 15, 2023	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: March 13, 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": "23AA0129",
  "coordinates": {
    "lat": 18.23797,
    "lon": 120.62958
  },
  "municipality": "VINTAR (ILOCOS NORTE)",
  "distanceMeters": 276.3808294434865,
  "titleSimilarity": 0.975609756097561
}

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