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 23AE0036 and 23AE0037 have near-identical descriptions about 95 m apart (funding year 2023; ₱5.84M, ₱3.03M). Worth checking whether they cover the same works. It is possible that the second contract is a continuation or a separate phase that was not explicitly labelled.

Public record entityRehabilitation of Flood Mitigation Structure along Dayacos River, Barangay Bacsayan, San Juan, La Union

LocationSAN JUAN (LA UNION), LA UNION, Region IContract 23AE0037

Amount₱3,030,571.58 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: 2022-04-15 · Maxar

After capture: 2025-01-26 · 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

The only distinguishing marker is that one title has 'Phase 1' and the other has none. Per rule guidance, this is a classic 'unlabelled twin' case: the second contract may be a continuation or a separate phase that was not labelled as such. Both are in the same barangay, river, and municipality, funded in the same year, by the same contractor, and are only 95 meters apart. The evidence is complete and the public can check the records.

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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 Flood Mitigation Structure along Dayacos River, Barangay Bacsayan, San Juan, La Union23AE0037Flood control	100%	May 19, 2023	May 19, 2023	—	completedsumbong source

Start: March 10, 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": "23AE0037",
  "fundingYear": 2023,
  "municipality": "SAN JUAN (LA UNION)",
  "distanceMeters": 95.45745738617394,
  "titleSimilarity": 0.9337571956353639
}

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