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 23AH0042 and 22AH0134 have near-identical descriptions about 1396 m apart (funding years 2022, 2023; ₱4.94M, ₱4.90M). Worth checking whether they cover the same works. It is possible these are two separate drainage projects in different parts of Barangay Maasin, or a continuation of works funded in consecutive years.

Public record entityConstruction of Drainage System at Barangay Maasin, Mangaldan, Pangasinan

LocationMANGALDAN (PANGASINAN), PANGASINAN, Region IContract 23AH0042

Amount₱4,944,700.00 sumbong source

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

Satellite before / after

Esri Wayback · ~0.31 m

Before capture: 2019-03-03 · Maxar

After capture: 2019-03-03 · Vantor

No imagery since construction began — latest capture 2019-03-03

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 titles are near-identical and refer to the same barangay and municipality, with only minor wording differences (Barangay/Brgy, System/Structure) that are not distinguishing markers per the rule. The projects are about 1.4 km apart, which is within the same barangay and could plausibly be the same or overlapping works, especially since both are by the same contractor in consecutive years. There are no phase, package, or section markers, nor different place names. All required records are present.

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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 Drainage System at Barangay Maasin, Mangaldan, Pangasinan23AH0042	100%	May 20, 2023	May 20, 2023	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: February 16, 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": "23AH0042",
  "coordinates": {
    "lat": 16.072086,
    "lon": 120.3826
  },
  "municipality": "MANGALDAN (PANGASINAN)",
  "distanceMeters": 1396.3415938077778,
  "titleSimilarity": 0.9395973154362416
}

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