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 23DD0070 and 22DD0044 have near-identical descriptions about 1121 m apart (funding years 2022, 2023; ₱76.23M, ₱93.61M). Worth checking whether they cover the same works. These may be two phases or segments of revetment works along the same river, with one contract specifying the barangay and the other covering a broader or adjacent area.

Public record entityConstruction of Revetment along Lawaye River, Barangay Poctol, San Juan, Batangas

LocationSAN JUAN (BATANGAS), BATANGAS, Region IV-AContract 23DD0070

Amount₱76,235,000.00 sumbong source

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

Satellite before / after

Esri Wayback · ~0.46 m

Before capture: 2021-05-31 · Maxar

After capture: 2025-05-12 · 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

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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 nearly identical, both for 'Construction of Revetment along Lawaye River, San Juan, Batangas.' The only difference is that one specifies 'Barangay Poctol' while the other does not specify any barangay. According to the rule, if one title has a barangay marker and the other does not, this is considered a potential unlabelled twin and should be published. The projects are about 1.1 km apart, which is plausible for either a continuation or a possible overlap. The evidence is complete and the public can check the records.

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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 Revetment along Lawaye River, Barangay Poctol, San Juan, Batangas23DD0070	100%	October 26, 2023	October 26, 2023	—	completedsumbong source

Start: February 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": "23DD0070",
  "coordinates": {
    "lat": 13.81104,
    "lon": 121.43741
  },
  "municipality": "SAN JUAN (BATANGAS)",
  "distanceMeters": 1121.2879379506692,
  "titleSimilarity": 0.8827586206896552
}

Source documents

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