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 22BB0023 and 23BB0065 have near-identical descriptions about 60 m apart (funding years 2022, 2023; ₱24.50M, ₱48.98M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or expansion of the first, or covers a different type of flood control structure at the same site.

Public record entityConstruction of River Control at Dalla, Baggao, Cagayan

LocationBAGGAO (CAGAYAN), CAGAYAN, Region IIContract 22BB0023

Amount₱24,500,000.00 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 mLocation approximate

Before capture: 2019-03-21 · Maxar

After capture: 2025-06-01 · 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 two project titles are near-identical, both at Dalla, Baggao, Cagayan, with only generic differences ('River Control' vs 'Flood Control Structure'). There are no phase, package, section, or place markers distinguishing them, and both are at nearly the same coordinates (60 m apart). The only differences in title are generic terms, not specific markers. This fits the rule's publish criteria for possible duplicate 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 River Control at Dalla, Baggao, Cagayan22BB0023Flood control	100%	January 1, 2023	October 24, 2022	—	completedsumbong source

Start: March 30, 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": "22BB0023",
  "fundingYear": 2022,
  "municipality": "BAGGAO (CAGAYAN)",
  "distanceMeters": 59.51800360732144,
  "titleSimilarity": 0.9029740071249506
}

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