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 the second project is a continuation or expansion of the first, or covers a nearby stretch not specified in the title.

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

LocationQUIRINO (ANGKAKI) (ILOCOS SUR), ILOCOS SUR, Region IContract 23AD0048

Amount₱19,599,957.43 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 in the same municipality, and are funded in consecutive years. The locations are about 582 meters apart, which is close enough that they could refer to the same or overlapping works, especially since both are titled generically and lack any phase, section, or sitio/structure marker. The evidence is complete and checkable.

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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 Sur23AD0048Flood control	100%	July 20, 2023	December 26, 2023	—	completedsumbong source

Start: March 22, 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": "23AD0048",
  "fundingYear": 2023,
  "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