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 22NG0054 and 23NG0023 have near-identical descriptions about 1036 m apart (funding years 2022, 2023; ₱48.50M, ₱96.50M). 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 stretch of the river within the same barangay.

Public record entityConstruction of Flood Mitigation Structure along Surigao River, Barangay Quezon, Surigao City, Surigao del Norte

LocationSURIGAO CITY (CAPITAL) (SURIGAO DEL NORTE), SURIGAO DEL NORTE, Region XIIIContract 23NG0023

Amount₱96,499,997.47 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 mLocation approximate

Before capture: 2018-06-16 · Maxar

After capture: 2025-09-06 · 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 near-identical except for 'Brgy.' vs 'Barangay', which is a spelling variant and not a distinguishing marker. Both projects are for 'Construction of Flood Mitigation Structure along Surigao River, [Barangay] Quezon, Surigao City, Surigao del Norte', funded in consecutive years, about 1 km apart. There are no phase, package, section, or site markers that would distinguish them as separate works. The evidence is complete and the anomaly is clearly described.

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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 along Surigao River, Barangay Quezon, Surigao City, Surigao del Norte23NG0023Flood control	100%	February 1, 2024	March 4, 2024	—	completedsumbong source

Start: February 27, 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": "23NG0023",
  "fundingYear": 2023,
  "municipality": "SURIGAO CITY (CAPITAL) (SURIGAO DEL NORTE)",
  "distanceMeters": 1036.405553375003,
  "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