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Indicator worth a closer look. Not an accusation or a finding of wrongdoing.

Ito ay istatistikong anomalya o indikador na dapat suriin — hindi patunay ng maling gawain, pandaraya, o katiwalian laban sa sinumang tao.

AI-verified / Na-verify ng AI Data as of October 22, 2026

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: CENTERWAYS CONST AND DEVELOPMENT INC received 46.3% (₱1.38B of ₱2.99B) of recorded flood-control contract value in Sorsogon District Engineering Office across 67 contracts and 12 contractors, above the 40% concentration threshold (HHI 0.249). This may be due to the contractor's specialization or limited competition in the area.

Public record entityCENTERWAYS CONST AND DEVELOPMENT INCOrganization record →
LocationSorsogon District Engineering Office
Amount₱1,384,657,507.8446.3% of peer-group contract value in public records sumbong source

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

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.

Flagged peer group: Sorsogon District Engineering Office

Reported complete (DPWH): 26Ongoing: 0Delayed: 0Status unknown: 0
ProjectProg.Target endActual endDays lateStatus
Construction of Flood Control Project along Malbog River at Purok Rosal, Brgy. Cumadcad, Castilla, Sorsogon22FK0048Flood control100%September 12, 2022September 12, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Control Project along Sinalot Creek at Purok Sunflower, Brgy. Cumadcad, Castilla, Sorsogon22FK0048Flood control100%September 12, 2022September 12, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Control Project Cumadcad River at Sogoy Boundary, Brgy. Cumadcad, Castilla, Sorsogon22FK0048Flood control100%September 12, 2022September 12, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Control Structure along Gomihan River, Sorsogon City22FK0030Flood control100%November 15, 2022November 15, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Control Structure, Caditaan River, Magallanes, Sorsogon22FK0059Flood control100%March 10, 2023March 10, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Mitigating Structure along Rawis River (Downstream) and Gatbo River, Bacon District, Sorsogon City, Sorsogon22FK0021Flood control100%December 21, 2022December 21, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Show 20 more projects in this bucket
Construction of Flood Mitigation Structure of Malbog River Control Donwstream, Castilla, Sorsogon22FK0034Flood control100%October 12, 2022October 12, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Mitigation Structures and Drainage System at Barangay Dancalan, Donsol, Sorsogon22FK0074Flood control100%March 7, 2023March 7, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Malbog River Flood Mitigation Structure, Barangay Cumadcad, Castilla, Sorsogon24FK0020Flood control100%November 6, 2024November 6, 2024No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Malbog River Flood Mitigation Structure, Barangay Mayon, Castilla, Sorsogon24FK0019Flood control100%November 11, 2024November 11, 2024No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Milagrosa River Control, Castilla, Sorsogon22FK0036Flood control100%February 13, 2023February 13, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Putiao River Control, Pilar Sorsogon22FK0011Flood control100%November 19, 2022November 18, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of River Flood Control Structure, Gimaloto, Sorsogon City, Sorsogon21FK0036Flood control100%September 2, 2022September 2, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Seawall, Sitio Dancalan, Barangay Buenavista, Bacon District, Sorsogon City, Sorsogon23FK0006Flood control100%November 22, 2023November 22, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction/ Improvement of Flood Protection Measures along Mibacong River, Sorsogon City23FK0006Flood control100%November 22, 2023November 22, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction/ Improvement of Flood Protection Measures along Tublijon River, Brgy. Tublijon, Sorsogon City23FK0006Flood control100%November 22, 2023November 22, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction/ Rehabilitation of Flood Protection Measures at Brgy. Macabog, Sorsogon City23FK0017Flood control100%December 9, 2023November 30, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction/Rehabilitation of San Rafael Storm Surge Protection, Donsol, Sorsogon22F00136Flood control100%January 1, 2024December 20, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction/Rehabilitation of Sta. Cruz Storm Surge Protection, Donsol, Sorsogon22F00136Flood control100%January 1, 2024December 20, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Rehabilitation of Revetment along Tublijon River, Sorsogon City22FK0048Flood control100%September 12, 2022September 12, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Rehabilitation of Seawall, Barangay Bororan, Donsol, Sorsogon23FK0006Flood control100%November 22, 2023November 22, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Drainage System, Barangay Del Rosario, Bacon District, Sorsogon City, Sorsogon22FK0048100%September 12, 2022September 12, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Drainage System, Barangay Market Site Barangay 3, Donsol, Sorsogon22FK0048100%September 12, 2022September 12, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Control Protection Against Flooding along Macabog River, Sorsogon City, Sorsogon22FK0017100%December 27, 2022December 27, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Flood Control Protection Against Flooding at Barangay San Juan Roro - Burabod River, Sorsogon City, Sorsogon22FK0030100%November 15, 2022November 15, 2022No target date from DPWH, so lateness cannot be computedcompletedsumbong source
Construction of Revetment Wall, Milagrosa River, Castilla, Sorsogon22FK0076100%June 22, 2023June 22, 2023No target date from DPWH, so lateness cannot be computedcompletedsumbong source

Rule Definition

Share of contract value by contractor within DEO or province; flags top share > 40% or elevated HHI.

Triggering Data & citations

Contractor share of flood-control contract value in peer group exceeds typical concentration

{
  "hhi": 0.24874975633024723,
  "scope": "deo",
  "bucketKey": "deo:Sorsogon District Engineering Office",
  "contractor": "CENTERWAYS CONST AND DEVELOPMENT INC",
  "thresholds": {
    "hhi": 0.25,
    "share": 0.4
  },
  "bucketTotalPhp": 2992299752.1399984,
  "contractorShare": 0.46274024079630943,
  "contractorTotalPhp": 1384657507.84
}

Source documents

Possible Innocent Explanations

  • Dominant local contractor with equipment already in the area
  • Emergency or accelerated procurement after a disaster
  • Small number of qualified flood-control firms in the province
  • This may be due to the contractor's specialization or limited competition in the area.

Connected records

Where this contractor works

Sorsogon · 158City of Sorsogon · 42Masbate · 36Camarines Sur · 36Albay · 28Camarines Norte · 19Cebu · 16City of Legazpi · 12City of Naga · 9Quezon City · 6
Contractor grade C15 storms reached its projects · typhoon modeAll contractors & gradesContractor patterns