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 22DD0001 and 23DD0066 have near-identical descriptions about 1348 m apart (funding years 2022, 2023; ₱96.50M, ₱96.50M). Worth checking whether they cover the same works. It is possible that the second contract is a continuation or extension of the same revetment project funded in a new year.

Public record entityConstruction of Revetment along Malaking Ilog River, San Juan, Batangas

LocationSAN JUAN (BATANGAS), BATANGAS, Region IV-AContract 23DD0066

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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two contracts have identical titles with no distinguishing markers (no phase, package, section, or different place names), are in the same municipality, and are about 1.3 km apart. The only difference is the funding year. This fits the rule's publish criteria for possible duplicate or overlapping works. Innocent explanations (such as a continuation or extension of the same project in a new year) are plausible but do not block publication.

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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 Malaking Ilog River, San Juan, Batangas23DD0066	100%	December 1, 2023	September 20, 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": "23DD0066",
  "fundingYear": 2023,
  "municipality": "SAN JUAN (BATANGAS)",
  "distanceMeters": 1347.775995668131,
  "titleSimilarity": 1
}

Source documents

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

Possible Innocent Explanations

Phased construction seasons
Upstream/downstream segments recorded separately