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 23IF0085 and 23IF0084 have near-identical descriptions about 818 m apart (funding year 2023; ₱96.47M, ₱95.67M). Worth checking whether they cover the same works. One contract may cover the upstream section, while the other covers a different or broader section of the same flood control project.

Public record entityConstruction of Matlang Flood Control (Upstream), Isabel, Leyte

LocationISABEL (LEYTE), LEYTE, Region VIIIContract 23IF0085

Amount₱96,469,960.03 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: 2014-11-28 · Maxar

After capture: 2014-11-28 · Vantor

No imagery since construction began — latest capture 2014-11-28

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 'Upstream' in the first title, while the second title has no such marker. Per rule guidance, if one title has a phase/segment marker and the other does not, this is a classic 'unlabelled twin' case and should be published. The locations are close (818m), the titles are otherwise near-identical, and both are in the same municipality and funding year. Innocent explanation is plausible but does not block publishing.

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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 Matlang Flood Control (Upstream), Isabel, Leyte23IF0085Flood control	100%	April 13, 2024	April 13, 2024	—	completedsumbong source

Start: June 19, 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": "23IF0085",
  "coordinates": {
    "lat": 10.898611,
    "lon": 124.45722
  },
  "municipality": "ISABEL (LEYTE)",
  "distanceMeters": 817.8972758212083,
  "titleSimilarity": 0.9629629629629629
}

Source documents

sumbong — https://raw.githubusercontent.com/rukku/sumbongsapangulo.ph-datasets/main/flood_control_projects.geojsonFetched October 21, 2026