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 23DD0065 have near-identical descriptions about 22 m apart (funding year 2023; ₱76.23M, ₱96.50M). Worth checking whether they cover the same works. It is possible that one contract covers a specific barangay while the other covers a broader or adjacent area along the same river.

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

LocationSAN JUAN (BATANGAS), BATANGAS, Region IV-AContract 23DD0065

Amount₱96,500,000.00 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

Click imagery to enlarge

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How this was checked

publish · confidence 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only difference between the two titles is that one specifies 'Barangay Poctol' while the other does not. There are no phase, package, or section markers, and both are for 'Construction of Revetment along Lawaye River' in San Juan, Batangas, funded in the same year and located only 22 meters apart. This fits the 'unlabelled twin' scenario described in the guidance, where one project is labelled with a barangay and the other is not, making it plausible they refer to 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 Revetment along Lawaye River, San Juan, Batangas23DD0065	100%	December 1, 2023	September 18, 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": "23DD0065",
  "coordinates": {
    "lat": 13.81084,
    "lon": 121.43738
  },
  "municipality": "SAN JUAN (BATANGAS)",
  "distanceMeters": 22.473677908952794,
  "titleSimilarity": 0.8827586206896552
}

Source documents

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