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 22NG0055 and 22NG0022 have near-identical descriptions about 1145 m apart (funding year 2022; ₱9.90M, ₱48.49M). Worth checking whether they cover the same works. It is possible these are separate segments of the river or phases not labeled in the titles.

Public record entityConstruction of Magtiaco River Flood Control along Magtiaco River, Barangay San Pedro, Alegria, Surigao del Norte

LocationALEGRIA (SURIGAO DEL NORTE), SURIGAO DEL NORTE, Region XIIIContract 22NG0055

Amount₱9,899,347.33 sumbong source

Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.

Satellite before / after

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2021-07-21 · 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

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 titles are completely identical with no distinguishing markers or extra place names, and both projects are in the same barangay and municipality, funded in the same year, and describe the same type of work. The only difference is the contractor and the contract amount. The distance between the two is over the 100m threshold, but the rule is for near-duplicate titles within the same municipality, and the code has already flagged this as a possible duplicate/overlap. Innocent explanations (such as the projects being for different segments of the river) are plausible but not indicated by the titles.

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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 Magtiaco River Flood Control along Magtiaco River, Barangay San Pedro, Alegria, Surigao del Norte22NG0055Flood control	100%	December 10, 2022	December 9, 2022	—	completedsumbong source

Start: April 1, 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": "22NG0055",
  "fundingYear": 2022,
  "municipality": "ALEGRIA (SURIGAO DEL NORTE)",
  "distanceMeters": 1144.5737516642164,
  "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