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 23NA0027 and 22NA0027 have near-identical descriptions about 1636 m apart (funding years 2022, 2023; ₱48.25M, ₱49.00M). Worth checking whether they cover the same works. It is possible that these are sequential or adjacent segments of a larger flood mitigation project funded in consecutive years.

Public record entityConstruction of Flood Mitigation Structure at Lower Agusan River, Magallanes-Pagatpatan Section, Magallanes, Agusan del Norte

LocationMAGALLANES (AGUSAN DEL NORTE), AGUSAN DEL NORTE, Region XIIIContract 22NA0027

Amount₱48,999,998.08 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: 2021-08-15 · Maxar

After capture: 2025-11-26 · 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, with only a minor difference in the use of a hyphen ('Magallanes Pagatpatan' vs 'Magallanes-Pagatpatan'), which is not a distinguishing marker. Both projects are in the same municipality, have the same contractor, and are about 1.6 km apart. There are no phase, package, section, or site markers that would clearly distinguish them as separate works. The evidence is complete and meets the rule's 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 Flood Mitigation Structure at Lower Agusan River, Magallanes-Pagatpatan Section, Magallanes, Agusan del Norte22NA0027Flood control	100%	October 26, 2022	October 26, 2022	—	completedsumbong source

Start: April 10, 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": "22NA0027",
  "fundingYear": 2022,
  "municipality": "MAGALLANES (AGUSAN DEL NORTE)",
  "distanceMeters": 1636.2313642660838,
  "titleSimilarity": 0.9629290322580645
}

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