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 24AA0091 and 23AA0023 have near-identical descriptions about 467 m apart (funding years 2023, 2024; ₱19.60M, ₱49.00M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or expansion of the first, or covers a different segment within the same barangays.

Public record entityConstruction of Flood Control Structure along Sarrat Padsan River Basin, Barangays San Lorenzo and San Miguel, Sarrat, Ilocos Norte

LocationSARRAT (ILOCOS NORTE), ILOCOS NORTE, Region IContract 24AA0091

Amount₱19,599,469.70 sumbong source

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

Satellite before / after

Esri Wayback · ~0.46 mLocation approximate

Before capture: 2023-02-02 · Maxar

After capture: 2025-10-04 · 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 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical, both refer to flood control works along the Sarrat Padsan River Basin in the same barangays (San Lorenzo and San Miguel), and are only 467 meters apart. The only differences in the titles are generic words ('structure' vs 'project', 'barangays' vs 'barangay', and the explicit mention of 'Barangay 10 San Miguel' in one title, which does not clearly distinguish a different site since 'San Miguel' is present in both). There are no phase, package, section, or station markers, and the barangay names overlap. 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 Flood Control Structure along Sarrat Padsan River Basin, Barangays San Lorenzo and San Miguel, Sarrat, Ilocos Norte24AA0091Flood control	100%	July 3, 2024	July 3, 2024	—	completedsumbong source

Start: February 14, 2024 · 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": "24AA0091",
  "coordinates": {
    "lat": 18.13196,
    "lon": 120.632835
  },
  "municipality": "SARRAT (ILOCOS NORTE)",
  "distanceMeters": 467.13592123995494,
  "titleSimilarity": 0.915129151291513
}

Source documents

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