Municipality

Siayan

Siayan, Zamboanga del Norte, Region IX (Zamboanga Peninsula). 1st income class. Population 40,937 (2024 POPCEN).

Data-quality note: 4 DPWH projects linked to Siayan have no coordinates published by DPWH, so they are not on the map and cannot be checked with satellite images.

PSGC 0907215000 · Source: PSA, PSGC 3Q 2026 Publication Datafile

Download flyer (PDF)PNG Send evidence

Public records linked to Siayan

Counts include this municipality and every LGU under it. Each record carries how it was linked and a confidence level; figures are as recorded by the source and exclude single amounts of ₱10B+ held for verification. They are not findings.

DPWH infrastructure projects

Contracts on the DPWH Transparency portal, placed by coordinates first. Source: DPWH Transparency portal

65 records · ₱483,205,110.08

6 placed at Siayan level itself; the rest in LGUs under it.

Preventive Maintenance - Secondary Roads Asphalt Overlay of Sindangan - Siayan - Dumingag - Mahayag Road, Sindangan - Siayan Section₱101,358,402.33 · 2020 · medium confidence (project coordinates inside the barangay boundary)
Construction of Road Slope Protection Structure-Sindangan-Siayan-Dumingag-Mahayag Road(Sindangan-Siayan Sect.) K1926+700 - K1926+880, K1929+150-K1929+250,K1936+820-K1936+880, K 1939+5122-K1939+5300,K1939+8431-K1939+8700,K1939+11180-K1939+11180₱44,027,798.06 · 2018 · medium confidence (project coordinates inside the barangay boundary)
Concreting of Poblacion-Polayo Road, Brgy. Poblacion, Siayan, Zamboanga del Norte.₱29,827,349.44 · 2018 · medium confidence (project coordinates inside the barangay boundary)
Construction of Flood Mitigation Structure-Construction of River Bank Protection Works/Flood Protection Works, Lagag Sip, Sindangan Zamboanga del Norte₱29,000,230.87 · 2025 · medium confidence (project coordinates inside the barangay boundary)
Rehab./Recons. of Nat'L. Roads W/ Slips, Slope Collapse & Landslide-Secondary Roads:Sind.-Siayan-Dumingag-Mahayag Rd. (Sind.-Siayan Sect.)-K1929+960-K1929+990 @ Rs, K1937+100-K1937+745, K1939+9355-K1939+9494, K1929+874-K1929+964 @ Ls, K1939+040-K1939+100.₱16,418,939.55 · 2017 · medium confidence (project coordinates inside the barangay boundary)
Concreting Brgy. Paranglumba to Domogok Fmr, Brgy. Paranglumba, Siayan, Zamboanga del Norte₱14,477,599.46 · 2025 · medium confidence (project coordinates inside the barangay boundary)

How linked: 59 by project coordinates inside the barangay boundary; 4 by project title names the place; 2 by project coordinates inside the city/municipality boundary.

Contracts this LGU awarded (PhilGEPS)

PhilGEPS awards where the procuring entity is this LGU. Source: PhilGEPS award notices

1 record · ₱101,131,705.06

Municipality of Siayan, Zamboanga del Norte₱101,131,705.06 · high confidence (the LGU itself is the buyer)

How linked: 1 by the LGU itself is the buyer.

PhilGEPS awards delivered here (all agencies)

Awards by any agency whose area of delivery is this province. PhilGEPS records delivery areas at province level only. Source: PhilGEPS award notices

Not yet linked to Siayan itself. This shows the province figure for Zamboanga del Norte.

54,939 records · ₱78,900,105,313.60

54,924 placed at Zamboanga del Norte level itself; the rest in LGUs under it.

Zamboanga del Norte₱78,900,105,313.60 · 54,924 awards · high confidence (area of delivery is this province only)
Basilan, Isabela, Sulu, Tawi-Tawi, Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay₱38,348,411.40 · 1 awards · low confidence (area of delivery lists several provinces)
Misamis Occidental, Sulu, Tawi-Tawi, Zamboanga del Norte, Zamboanga del Sur₱11,759,091.30 · 1 awards · low confidence (area of delivery lists several provinces)
Basilan, Sulu, Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay₱8,051,535.72 · 1 awards · low confidence (area of delivery lists several provinces)
Tarlac, Tawi-Tawi, Zambales, Zamboanga del Norte, Zamboanga del Sur₱2,092,121.44 · 1 awards · low confidence (area of delivery lists several provinces)
Zamboanga del Norte, Zamboanga del Sur₱1,644,400.00 · 3 awards · low confidence (area of delivery lists several provinces)

How linked: 54,924 by area of delivery is this province only; 15 by area of delivery lists several provinces.

Local Government Support Fund releases

DBM LGSF project releases by province, city/municipality and barangay. Source: DBM COMPASS

9 records · ₱40,107,143.00

6 placed at Siayan level itself; the rest in LGUs under it.

Lgsf_gef₱12,857,143.00 · 2023 · high confidence (location columns in the DBM release)
Rehabilitation/ Concreting of Diongan-Guibo Farm-to-Market Road₱5,000,000.00 · 2022 · high confidence (location columns in the DBM release)
Assistance to Indigent Individuals Or Families - Food Assistance/Rice Distribution Project₱5,000,000.00 · 2026 · high confidence (location columns in the DBM release)
Rehabilitation/Concreting of Guibo Farm to Market Road₱4,000,000.00 · 2022 · high confidence (location columns in the DBM release)
Rehabilitation/Concreting of Macasing Farm to Market Road₱4,000,000.00 · 2022 · high confidence (location columns in the DBM release)
Rehabilitation/Concreting of Pange Farm to Market Road₱4,000,000.00 · 2022 · high confidence (location columns in the DBM release)

How linked: 9 by location columns in the DBM release.

GAA budget lines naming this place

General Appropriations Act lines whose text ends in this city/municipality and province. Source: DBM General Appropriations Act

37 records · ₱215,850,000.00

17 placed at Siayan level itself; the rest in LGUs under it.

Construction of Road, Sitio Macayas, Brgy. Mandhi, Sindangan to Sitio Suminugod, Brgy. Guibo, Siayan, Zamboanga del Norte₱50,000,000.00 · 2022 · high confidence (GAA line text names the place)
Construction of Road, Sitio Macayas, Brgy. Mandhi, Sindangan to Sitio Suminugod, Brgy. Guibo, Siayan, Zamboanga del Norte₱50,000,000.00 · 2023 · high confidence (GAA line text names the place)
Concreting of Brgy. Pange Fmr, Brgy. Pange, Siayan, Zamboanga del Norte₱13,000,000.00 · 2023 · high confidence (GAA line text names the place)
Concreting of Brgy. Guibo Fmr, Brgy. Guibo, Siayan, Zamboanga del Norte₱12,500,000.00 · 2020 · high confidence (GAA line text names the place)
Concreting of Brgy. Pange Fmr, Brgy. Pange, Siayan, Zamboanga del Norte₱10,000,000.00 · 2016 · high confidence (GAA line text names the place)
Construction of Flood Control Structure, Siayan, Zamboanga del Norte₱10,000,000.00 · 2024 · high confidence (GAA line text names the place)

How linked: 37 by GAA line text names the place.

COA annual audit reports

Not yet linked: the COA reports loaded so far cover national agencies only. LGU audit reports are published at coa.gov.ph.

Published anomaly flags

Patterns in the linked records that reviewers checked and published. A flag is a question worth asking, not a finding of wrongdoing.

Contractor Concentration (Flood Control)Badsbro Const and Gen MerchandiseContractor: Badsbro Const and Gen Merchandise
Contractor Concentration (Flood Control)Genetian Builders and Ent Inc Formerly: Genetian BuildersContractor: Genetian Builders and Ent Inc Formerly: Genetian Builders

See all 2 published flags

Contractors on linked DPWH projects

All 13 contractors on DPWH projects linked to Siayan and the LGUs under it. Click a column to sort.


D' Dreamer Development CORP	16	₱120,388,583.20	0
Esr Const And Development CORP Formerly: Esr Const	1	₱101,358,402.33	0
Jimwen Const	6	₱87,679,090.05	0
Rudhil Const	11	₱57,000,546.55	0
A P A Const	8	₱35,150,873.93	0
Morte Const	7	₱19,588,952.75	0
Badsbro Const And Gen Merchandise	3	₱16,373,582.00	1
Kmp Const	2	₱9,915,868.68	0
Genetian Builders And Ent INC Formerly: Genetian Builders	1	₱9,068,464.59	1
St Joseph Const And Trading	2	₱8,168,922.40	0
Lakewood Const CO	2	₱7,897,669.44	0
L C Const CORP For: L C Const	3	₱6,772,384.21	0
J C Dela Vega Const And Supply	1	₱3,841,769.95	0

Costs as recorded by DPWH; single amounts of ₱10B+ are held for verification and excluded. Flags count published automated anomalies on this contractor's projects or awards here, plus flags on the contractor itself; they are not findings.

Recent storms that crossed Siayan

DPWH flood-control projects here that were inside the storm’s tropical-storm-force wind field (IBTrACS track). Being in the path is not a finding about a project.