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 22DF0152 and 22DF0151 have near-identical descriptions about 72 m apart (funding year 2022; ₱4.95M, ₱4.95M). Worth checking whether they cover the same works. It is possible that these are two parts of a larger drainage project that were procured separately.

Public record entityConcreting of Drainage System at Barangay Poblacion 3, Tanza, Cavite

LocationTANZA (CAVITE), CAVITE, Region IV-AContract 22DF0151

Amount₱4,950,000.00 sumbong source

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

Satellite before / after

Esri Wayback · ~0.31 m

Before capture: 2021-04-23 · Maxar

After capture: 2025-04-20 · 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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical, both at Barangay Poblacion 3, Tanza, Cavite, with no distinguishing markers such as phase, package, section, or different locations. The only differences are 'Construction' vs 'Concreting' and the addition of 'System' in one title, which are not distinguishing per the rules. Both projects are in the same funding year, have the same cost, and are only 72 meters apart. This fits the criteria for a potentially duplicate or overlapping project worth public attention.

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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
Concreting of Drainage System at Barangay Poblacion 3, Tanza, Cavite22DF0151	100%	July 14, 2022	July 14, 2022	—	completedsumbong source

Start: March 31, 2022 · 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": "22DF0151",
  "coordinates": {
    "lat": 14.3995,
    "lon": 120.85641
  },
  "municipality": "TANZA (CAVITE)",
  "distanceMeters": 72.0241497799285,
  "titleSimilarity": 0.8854961832061069
}

Source documents

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