Construction of Flood Mitigation Structure24NA0003

Construction of Guinoyoran River Flood Control (Downstream Section), Santiago, Agusan del Norte

Construction of Guinoyoran River Flood Control (Downstream Section), Santiago, Agusan del Norte is a DPWH-tracked public work in SANTIAGO (AGUSAN DEL NORTE), AGUSAN DEL NORTE, Region XIII. Reported contract value: ₱48,249,968.08. Status: Reported complete (DPWH). Contractor on record: ERRA CONST AND DEVELOPMENT INC FORMERLY ERRA CONST. Figures trace to sumbong.

SANTIAGO (AGUSAN DEL NORTE), AGUSAN DEL NORTE, Region XIII

Region: Region XIII

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2021-07-21 · Maxar

After capture: 2025-11-12 · 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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Total Contract Cost

₱48,249,968.08

Progress100%

Source: DPWH Transparency Portal (via BetterGov.PH mirror, snapshot 22 Jan 2026); Sumbong sa Pangulo flood-control list where applicable

Follow the peso

2 of 5 steps linked to this project, 1 at office level only. Links are automated matches unless marked confirmed.

1. GAA budget line
FY2024 · ₱25,000
Probable match · score 0.91
DBM GAA source ↗
2. SARO / NCA release
NCA NCA-ROXIII-24-0007018 · ₱821,000 · release to the district office, not itemized per project
Possible match · score 0.67
DBM release source ↗
3. PhilGEPS award
Not found in PhilGEPS by contract ID 24NA0003 or title. The open PhilGEPS mirror does not include every DPWH notice.
4. DPWH progress + satellite
100% reported · imagery 2021-07-21 → 2025-11-12
Same record (DPWH contract ID)
DPWH Transparency Portal source ↗
5. COA audit finding
No COA finding names this project. COA audits DPWH by office each year; project-level findings are only linked when the report names the contract.

Site vs flood hazard · Project NOAH 100-year map

Medium flood hazard · Agusan del Norte

Based on the coordinates published with the DPWH record and NOAH file AgusanDelNorte.zip. Pins are sometimes placed at the town center rather than the site. NOAH data (ODbL) · Need vs spending by province

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Money Trail

1. Appropriation

Probable match · score 91%

UACS: 18001
Amount: ₱25,000,000.00 (GAA By-Object, amounts in ₱'000 × 1,000)
Program / description: Construction of Mamkas Flood Control Project, Package 2, Agusan del Norte
GAA fiscal year: FY2024

DBM GAA source document

2. Allotment

Office-level release, not tied to this specific contract

NCA NCA-ROXIII-24-0007018

₱821,000.00 · FY2024

Released to Agusan del Norte District Engineering Office (office-level, not project-specific). This SARO/NCA funds the office's programme; DBM listings do not tie it to this contract.

DBM NCA listing (source)

Office-level release, not tied to this specific contract

SARO SARO-ROXIII-24-0009258

₱1,450,000.00 · FY2024

DBM SARO listing (source)

Office-level release, not tied to this specific contract

SARO SARO-ROXIII-24-0001730

₱170,666.00 · FY2024

DBM SARO listing (source)

Office-level release, not tied to this specific contract

SARO SARO-ROXIII-24-0014783

₱134,000.00 · FY2024

DBM SARO listing (source)

3. Procurement & Award

No PhilGEPS award linked in the link table for this contract yet.

Contractor

ERRA CONST AND DEVELOPMENT INC FORMERLY ERRA CONST

14 projects · ₱427.2M total · 2 flags

Other projects by this contractor

No sat.

Construction of Guihao-an Riverbank Protection along Barangay Rizal, Buenavista, Agusan del Norte

BUENAVISTA (AGUSAN DEL NORTE), AGUSAN DEL NORTE, Region XIII

2024₱67.3M

Reported complete (DPWH)

No sat.

CONSTRUCTION/MAINTENANCE OF FLOOD MITIGATION STRUCTURES AND DRAINAGE SYSTEMS-CONSTRUCTION IMPROVEMENT OF GUIHAO-AN RIVER BANK PROTECTION ALONG GUIHAO-AN BRIDGE WITH RECHANNELIZATION, BUENAVISTA, AGUSAN DEL NORTE

Agusan del Norte DEO, Region XIII

2019₱58.3M

Reported complete (DPWH)

No sat.

CONSTRUCTION OF FLOOD CONTROL STRUCTURE, GUINOYORAN RIVER, DOWNSTREAM SECTION, SANTIAGO, AGUSAN DEL NORTE

Agusan del Norte DEO, Region XIII

2025₱48.2M

Reported complete (DPWH)

No sat.

CONSTRUCTION OF RIVER BANK PROTECTION ALONG GUIHAO-AN RIVER, BARANGAY RIZAL, BUENAVISTA, AGUSAN DEL NORTE

Agusan del Norte DEO, Region XIII

2025₱48.2M