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 23AD0048 and 22AD0094 have near-identical descriptions about 582 m apart (funding years 2022, 2023; ₱19.60M, ₱19.60M). Worth checking whether they cover the same works. It is possible that these are sequential phases or extensions of the same flood control project funded in different years, but the titles do not specify this.

Public record entityConstruction of Quirino Flood Control, Quirino, Ilocos Sur

LocationQUIRINO (ANGKAKI) (ILOCOS SUR), ILOCOS SUR, Region IContract 22AD0094

Amount₱19,599,997.60 sumbong source

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

Satellite before / after

Esri Wayback · ~0.46 mLocation approximate

Before capture: 2021-12-31 · Maxar

After capture: 2025-06-08 · 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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two projects have identical titles with no distinguishing markers, are located in the same municipality, and are funded in consecutive years. The distance between them (582 m) is above the 100 m threshold, but the rule is for near-duplicate titles within the same municipality, and the code has already flagged this as a potential duplicate. There is no evidence in the packet that these are distinct works (no phase, section, or site markers).

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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 Quirino Flood Control, Quirino, Ilocos Sur22AD0094Flood control	100%	August 2, 2022	August 30, 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": "22AD0094",
  "fundingYear": 2022,
  "municipality": "QUIRINO (ANGKAKI) (ILOCOS SUR)",
  "distanceMeters": 581.884566672254,
  "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