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 23IA0058 and 22IA0017 have near-identical descriptions about 251 m apart (funding years 2022, 2023; ₱23.94M, ₱24.48M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or a new phase of the same flood control works.

Public record entityConstruction of Amambahag Flood Control along Biliran Circumferential Road, Culaba, Biliran

LocationCULABA (BILIRAN), BILIRAN, Region VIIIContract 22IA0017

Amount₱24,476,943.86 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: 2020-01-21 · Maxar

After capture: 2020-01-21 · Vantor

No imagery since construction began — latest capture 2020-01-21

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

Click imagery to enlarge

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How this was checked

publish · confidence 0.80

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase VI' in the first title, while the second title has no phase or package marker. According to the rule-specific guidance, if one title has a phase/package marker and the other has none, this should be published as a possible unlabelled twin or continuation. The locations are very close (251 m apart), and the rest of the title is identical, with no other distinguishing place or structure 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 Amambahag Flood Control along Biliran Circumferential Road, Culaba, Biliran22IA0017Flood control	100%	July 30, 2022	July 4, 2022	—	completedsumbong source

Start: February 21, 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": "22IA0017",
  "fundingYear": 2022,
  "municipality": "CULABA (BILIRAN)",
  "distanceMeters": 251.4147899450081,
  "titleSimilarity": 0.9655164835164834
}

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