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 24AD0076 and 23AD0043 have near-identical descriptions about 62 m apart (funding years 2023, 2024; ₱48.25M, ₱29.40M). 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 part of the same river.

Public record entityConstruction of Balidbid River Control, Barangay Balidbid, Salcedo, Ilocos Sur

LocationSALCEDO (BAUGEN) (ILOCOS SUR), ILOCOS SUR, Region IContract 23AD0043

Amount₱29,399,996.02 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: 2021-12-31 · Maxar

After capture: 2025-01-27 · 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 and refer to the same general location (Balidbid, Salcedo, Ilocos Sur), with no distinguishing phase, package, section, or site markers. The only differences are generic terms ('flood structure' vs 'river control', 'barangay' in one title), which do not clearly indicate different works. The projects are only 62 meters apart, funded in consecutive years, and have the same contractor. This fits the rule's criteria for a potentially duplicate or overlapping project.

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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 Balidbid River Control, Barangay Balidbid, Salcedo, Ilocos Sur23AD0043Flood control	100%	October 19, 2023	July 8, 2024	—	completedsumbong source

Start: March 22, 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": "23AD0043",
  "coordinates": {
    "lat": 17.145834,
    "lon": 120.547775
  },
  "municipality": "SALCEDO (BAUGEN) (ILOCOS SUR)",
  "distanceMeters": 61.93557414108424,
  "titleSimilarity": 1
}

Source documents

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