Contractor Concentration (Flood Control)
A contractor holds a very large share of flood-control contract value in a district or province.
This is a statistical anomaly or indicator worth examining — not proof of wrongdoing, fraud, or corruption against any person.
Indicator: NORTHERN BUILDERS / RIANNE CONST received 48.5% (₱683.44M of ₱1.41B) of recorded flood-control contract value in Samar 2nd District Engineering Office across 18 contracts and 8 contractors, at or above the 25% share threshold (HHI 0.282). This may be due to the contractor's specialization or limited competition in the area.
Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.
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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.
Flagged peer group: Samar 2nd District Engineering Office
| Project | Prog. | Target end | Actual end | Days late | Status |
|---|---|---|---|---|---|
| Construction of Basey Tide Embankment, Basey, Samar19I00115Flood control | 100% | August 8, 2023 | August 8, 2023 | No target date from DPWH, so lateness cannot be computed | completedsumbong source |
| Construction of Basey Tide Embankment, Basey, Samar19I00115Flood control | 100% | August 8, 2023 | August 8, 2023 | No target date from DPWH, so lateness cannot be computed | completedsumbong source |
| Construction of Basey Tide Embankment, Basey, Samar19I00115Flood control | 100% | August 8, 2023 | August 8, 2023 | No target date from DPWH, so lateness cannot be computed | completedsumbong source |
Rule Definition
Share of contract value by contractor within DEO or province; flags top share > 40% or elevated HHI.
Triggering Data & citations
Contractor holds a large share of flood-control contract value in its district/province
{
"hhi": 0.2819788774634413,
"scope": "deo",
"bucketKey": "deo:Samar 2nd District Engineering Office",
"contractor": "NORTHERN BUILDERS / RIANNE CONST",
"thresholds": {
"share": 0.25,
"minContracts": 3,
"minBucketContracts": 10
},
"bucketTotalPhp": 1410452601.9,
"contractorShare": 0.4845514541072506,
"contractorTotalPhp": 683436859.2,
"contractorContracts": 3
}Source documents
Possible Innocent Explanations
- This may be due to the contractor's specialization or limited competition in the area.