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 23B00057 and 24BE0066 have near-identical descriptions about 1103 m apart (funding years 2023, 2024; ₱189.90M, ₱144.73M). Worth checking whether they cover the same works. These may be separate segments or a continuation of slope protection works along the same river in Santa Maria.

Public record entityConstruction of Slope Protection Works for Cagayan River Basin, Cagayan River at Sta. Maria, Isabela

LocationSANTA MARIA (ISABELA), ISABELA, Region IIContract 23B00057

Amount₱189,900,000.00 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: 2022-05-02 · Maxar

After capture: 2025-06-16 · 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 titles are near-identical and refer to the same river and municipality, with only minor wording differences ('at Sta. Maria' vs 'Santa Maria'). There are no phase, package, section, or other distinguishing markers, and the only difference is the presence of 'at' and the abbreviation 'Sta.' vs 'Santa', which are not distinguishing per the rules. The projects are about 1.1 km apart, which is plausible for overlapping or repeated works along a river in the same area. Innocent explanations are possible (e.g., different segments or continuation), but the indicator meets the criteria for publishing.

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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 Slope Protection Works for Cagayan River Basin, Cagayan River at Sta. Maria, Isabela23B00057	100%	May 16, 2024	February 29, 2024	—	completedsumbong source

Start: May 30, 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": "23B00057",
  "fundingYear": 2023,
  "municipality": "SANTA MARIA (ISABELA)",
  "distanceMeters": 1102.8452097665158,
  "titleSimilarity": 0.9729649376667407
}

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