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 24NH0067 and 22NH0015 have near-identical descriptions about 108 m apart (funding years 2022, 2024; ₱48.25M, ₱15.29M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or extension of the first, or covers a different segment not specified in the titles.

Public record entityConstruction of Seawall at Barangay Matho, Cortes, Surigao del Sur

LocationCORTES (SURIGAO DEL SUR), SURIGAO DEL SUR, Region XIIIContract 24NH0067

Amount₱48,249,389.19 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: 2019-06-15 · Maxar

After capture: 2024-07-05 · Vantor

No post-completion imagery yet — the newest available capture predates the reported completion date.

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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical, both refer to 'Construction of Seawall' at Barangay Matho, Cortes, Surigao del Sur, and are only 108 meters apart. There are no distinguishing markers (such as phase, package, section, or different sitios/barangays) in either title. The only difference is the word 'at' in one title, which is not a distinguishing marker. The funding years and contractors differ, but this does not explain the near-duplicate scope at the same location.

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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 Seawall at Barangay Matho, Cortes, Surigao del Sur24NH0067	100%	February 6, 2025	February 6, 2025	—	completedsumbong source

Start: June 28, 2024 · 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": "24NH0067",
  "coordinates": {
    "lat": 9.163349,
    "lon": 126.17801
  },
  "municipality": "CORTES (SURIGAO DEL SUR)",
  "distanceMeters": 107.61846054499493,
  "titleSimilarity": 0.9846153846153847
}

Source documents

sumbong — https://raw.githubusercontent.com/rukku/sumbongsapangulo.ph-datasets/main/flood_control_projects.geojsonFetched October 21, 2026