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 22AD0088 and 23AD0040 have near-identical descriptions about 973 m apart (funding years 2022, 2023; ₱9.51M, ₱13.44M). Worth checking whether they cover the same works. The second project may cover both a bridge and flood control, possibly as an extension or related but distinct structure.

Public record entityConstruction of Oaig Daya Flood Control, Candon City, Ilocos Sur

LocationCITY OF CANDON (ILOCOS SUR), ILOCOS SUR, Region IContract 22AD0088

Amount₱9,505,903.16 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: 2019-03-03 · Maxar

After capture: 2019-03-03 · Vantor

No imagery since construction began — latest capture 2019-03-03

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 except for the addition of 'Bridge' in the second project, and both are in the same barangay/area (Oaig Daya, Candon City, Ilocos Sur) with no distinguishing phase, package, or section markers. The distance is 973 meters, which is above the 100m threshold, but the rule is for near-identical titles within the same municipality, and the code has already flagged this as a valid case. Innocent explanation: the second project may include both a bridge and flood control, possibly as an extension or related but distinct structure.

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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 Oaig Daya Flood Control, Candon City, Ilocos Sur22AD0088Flood control	100%	June 24, 2022	January 31, 2023	No target date from DPWH, so lateness cannot be computed	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": "22AD0088",
  "coordinates": {
    "lat": 17.180834,
    "lon": 120.45417
  },
  "municipality": "CITY OF CANDON (ILOCOS SUR)",
  "distanceMeters": 972.9857313796405,
  "titleSimilarity": 0.920863309352518
}

Source documents

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

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Where this project sits