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 23DI0117 and 23DI0116 have near-identical descriptions about 337 m apart (funding year 2023; ₱96.43M, ₱96.43M). Worth checking whether they cover the same works. One contract may be a continuation or second phase of the other, but the lack of a phase marker in one title makes it unclear.

Public record entityConstruction of Structure for River Protection Along Malitlit Waterways, (Near Eton Road), Sta. Rosa City, Laguna Phase II

LocationCITY OF SANTA ROSA (LAGUNA), LAGUNA, Region IV-AContract 23DI0117

Amount₱96,427,776.33 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: 2021-06-12 · 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 0.70

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

Although 'Phase II' is present in one title and not the other, the other contract has no phase marker at all, which fits the 'unlabelled twin' scenario described in the guidance. Both projects are in the same location, same year, same contractor, and have near-identical titles and costs. The only distinguishing marker is the phase in one title, which per instructions should be published as a possible duplicate or continuation without clear labelling.

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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 Structure for River Protection Along Malitlit Waterways, (Near Eton Road), Sta. Rosa City, Laguna Phase II23DI0117Flood control	100%	March 5, 2024	December 12, 2023	—	completedsumbong source

Start: April 14, 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": "23DI0117",
  "fundingYear": 2023,
  "municipality": "CITY OF SANTA ROSA (LAGUNA)",
  "distanceMeters": 336.9151802388338,
  "titleSimilarity": 0.9856
}

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