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 22GB0014 and 23GB0023 have near-identical descriptions about 790 m apart (funding years 2022, 2023; ₱8.26M, ₱57.90M). Worth checking whether they cover the same works. It is possible that the second contract is a continuation or expansion of the first project, but this is not specified in the titles.

Public record entityConstruction of Flood Control Structure along Sibalom River, Barangay Pantao, San Jose, Antique

LocationSAN JOSE (CAPITAL) (ANTIQUE), ANTIQUE, Region VIContract 23GB0023

Amount₱57,900,000.00 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: 2020-01-11 · Maxar

After capture: 2025-10-20 · 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

Click imagery to enlarge

Loading satellite imagery…

How this was checked

publish · confidence 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two contracts have identical titles with no distinguishing markers, are both located in Barangay Pantao, San Jose, Antique, and are about 790 meters apart. The only differences are the funding years and contractors. There is no evidence in the packet that these are distinct phases or segments, nor do the titles specify different locations or structures. This fits the rule's criteria for a potentially duplicate or overlapping project.

Full AI audit log →

View project record

Submit evidence about this

Named in this indicator? Respond or report an error · Corrections policy

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 Sibalom River, Barangay Pantao, San Jose, Antique23GB0023Flood control	100%	February 28, 2024	February 28, 2024	—	completedsumbong source

Start: February 9, 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": "23GB0023",
  "fundingYear": 2023,
  "municipality": "SAN JOSE (CAPITAL) (ANTIQUE)",
  "distanceMeters": 789.9852728635198,
  "titleSimilarity": 1
}

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