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 24AD0075 and 22AD0064 have near-identical descriptions about 443 m apart (funding years 2022, 2024; ₱48.25M, ₱49.00M). 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 nearby but distinct section of the river.

Public record entityConstruction of Sorioan River Control Structure, Salcedo, Ilocos Sur

LocationSALCEDO (BAUGEN) (ILOCOS SUR), ILOCOS SUR, Region IContract 22AD0064

Amount₱48,999,995.79 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: 2021-04-03 · Maxar

After capture: 2025-01-27 · 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 two project titles are near-identical, both referring to 'Sorioan' and 'Control Structure' in Salcedo, Ilocos Sur, with only 'Flood' vs 'River' as the differing word. There are no phase, package, section, or place markers distinguishing them, and both are by the same contractor, funded two years apart, and located within 443 meters. The difference between 'Flood' and 'River' is not a clear distinguishing marker in this context, as both refer to flood mitigation structures. 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 Sorioan River Control Structure, Salcedo, Ilocos Sur22AD0064Flood control	100%	December 30, 2022	February 15, 2023	—	completedsumbong source

Start: April 4, 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": "22AD0064",
  "coordinates": {
    "lat": 17.12948,
    "lon": 120.53389
  },
  "municipality": "SALCEDO (BAUGEN) (ILOCOS SUR)",
  "distanceMeters": 443.1828047172558,
  "titleSimilarity": 0.9264705882352942
}

Source documents

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