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 22IA0017 and 23IA0091 have near-identical descriptions about 61 m apart (funding years 2022, 2023; ₱24.48M, ₱19.17M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or new phase of the first, but the first contract does not specify a phase.

Public record entityConstruction of Amambahag Flood Control along Circumferential Road, Phase 6, Culaba, Biliran

LocationCULABA (BILIRAN), BILIRAN, Region VIIIContract 23IA0091

Amount₱19,169,852.50 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 6' in the second title, while the first title has no phase or package marker. Per rule guidance, if one title has a phase/package marker and the other does not, this is a classic 'unlabelled twin' scenario and should be published. The locations are very close (61 m), and the titles are otherwise near-identical, both referring to Amambahag Flood Control along the Circumferential Road in Culaba, Biliran. 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 Amambahag Flood Control along Circumferential Road, Phase 6, Culaba, Biliran23IA0091Flood control	100%	August 21, 2023	July 28, 2023	—	completedsumbong source

Start: March 30, 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": "23IA0091",
  "fundingYear": 2023,
  "municipality": "CULABA (BILIRAN)",
  "distanceMeters": 61.22064061832666,
  "titleSimilarity": 0.9292428543323684
}

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