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 22OE0030 and 23OE0089 have near-identical descriptions about 675 m apart (funding years 2022, 2023; ₱49.00M, ₱67.54M). Worth checking whether they cover the same works. The second contract may simply be a continuation or next phase of the same drainage project.

Public record entityRehabilitation of Drainage System at Zone 41-57 (Phase 2), Manila City

LocationCITY OF MANILA (METROPOLITAN MANILA), CITY OF MANILA, National Capital RegionContract 23OE0089

Amount₱67,542,628.60 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 m

Before capture: 2021-11-03 · Maxar

After capture: 2025-04-25 · 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 0.80

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase 2' in the second title, while the first title has no phase marker. Per rule guidance, if one title has a phase/package marker and the other does not, this is considered a plausible unlabelled twin and should be published. The locations are close (675 m), the titles are otherwise identical, and the funding years are consecutive. All required records are present.

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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
Rehabilitation of Drainage System at Zone 41-57 (Phase 2), Manila City23OE0089	100%	June 6, 2024	June 6, 2024	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: March 15, 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": "23OE0089",
  "coordinates": {
    "lat": 14.607663,
    "lon": 120.997215
  },
  "municipality": "CITY OF MANILA (METROPOLITAN MANILA)",
  "distanceMeters": 674.6127824243919,
  "titleSimilarity": 0.967741935483871
}

Source documents

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

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Where this project sits