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 23IH0109 and 22IH0010 have near-identical descriptions about 682 m apart (funding years 2022, 2023; ₱22.67M, ₱48.99M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or extension of the first, but this is not specified in the titles.

Public record entityConstruction of Dalakit Shore Protection, Brgy. Dalakit, Catarman, Northern Samar

LocationCATARMAN (CAPITAL) (NORTHERN SAMAR), NORTHERN SAMAR, Region VIIIContract 23IH0109

Amount₱22,672,048.91 sumbong source

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

Satellite before / after

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2021-04-01 · Maxar

After capture: 2021-04-01 · Vantor

No imagery since construction began — latest capture 2021-04-01

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 exactly the same title, refer to the same barangay and municipality, and are only 682 meters apart. There are no distinguishing markers (such as phase, package, section, or different sitios/structure types) in either title. The only differences are the funding year and contractor, which does not explain the identical scope. This fits the rule's publish criteria for possible duplicate or overlapping works.

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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 Dalakit Shore Protection, Brgy. Dalakit, Catarman, Northern Samar23IH0109Flood control	100%	April 1, 2024	March 11, 2024	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: September 11, 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": "23IH0109",
  "fundingYear": 2023,
  "municipality": "CATARMAN (CAPITAL) (NORTHERN SAMAR)",
  "distanceMeters": 682.1446718281233,
  "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

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Possible Innocent Explanations

Where this project sits