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BetterGov · Budget research

Flood-control pattern review

Compare the documented Bulacan flood-control expansion with historical GAA and HGAB 2027 allocations for flood control, roads, bridges, and multi-purpose buildings.

Pattern comparison · evidence snapshot

What rose in HGAB 2027, and where should it be reviewed?

Start with bridge and multi-purpose-building allocations in HGAB 2027, compare them with available GAA years from 2016–2018 and 2020–2026, and inspect how current amounts are distributed across districts and named offices. The older source layer is title-classified and assigned to today’s district boundaries. The Bulacan contract history and earlier budget patterns provide context; they do not establish a shared cause.

LoadingEvidence snapshot

Where are current bridge and MPB allocations concentrated?

These charts show HGAB 2027 allocations by listed office for bridges and MPBs, including each family’s share assigned to its three largest named DEOs. “Central Office” is reported separately and is not a DEO. The historical GAA data does not retain comparable DEO labels, so office concentration is shown for HGAB 2027 only. The comparison-year and district filters in section 1 below provide historical context for the amounts.

Bridge · largest named DEO allocations

HGAB 2027 only · blue bars show share of bridge amounts assigned to named DEOs

MPB · largest named DEO allocations

HGAB 2027 only · blue bars show share of MPB amounts assigned to named DEOs

1. Rise and Clustering

HGAB 2027 shows the clearest rise in bridge and multi-purpose-building allocations against recent GAA years. Choose any available GAA comparison year below to see how those totals differ from HGAB 2027, then inspect the district histories and current office distribution. FY2016–2018 use a separate GAA Explorer source layer; project-family labels are title-based and amounts are assigned to today’s district boundaries. These are allocation patterns and review leads; they do not explain why funding changed. Missing bars mean no uniquely assigned row was available for that family-year in this snapshot, not a confirmed zero appropriation.

FY2016–2018 are now included as a separate title-classified DPWH current-new-appropriation baseline; district totals use today’s boundaries and exclude shared or unresolved records. FY2000–2008 has partial/aggregate-only coverage; FY2001/2004/2006 had no new enacted GAA; FY2009–2013 lacks DEO-level detail; FY2014 lacks a reconciled named-project extract; FY2015 title candidates now come from DBM DPWH capital-outlay PAP entries; see the searchable FY2015 lines. FY2019 project-title candidates come from the DBM technical DPWH GAA schedule; see the searchable UACS lines. Unavailable historical years remain excluded from comparisons, averages and highs; classified FY2015 and FY2019 rows are available in the district series.

Selected family · annual allocations

Available GAA FY2015–FY2019 and FY2020–FY2026, plus HGAB 3rd FY2027 · assigned amounts, ₱ billions

Districts with the largest increases

Top five increases from the selected GAA year to HGAB 2027 · ₱ billions

HGAB 2027 and selected GAA year

Classified family totals across assigned districts; amounts are appropriations in the listed budget stages.

How each year compares with the other available years

Percent above or below the mean of the other available GAA years; HGAB 2027 is compared with all ten available GAA years. Positive and negative departures are shown; dashed lines mark ±50%.

FamilyYear · stageAllocationAll-other-years averageDifference

This comparison can reveal a rise or fall even when it is separated from other years by a gap. The 2024 MPB low is retained as an observed pause: MPB allocations are above their all-other-years averages in 2025, 2026, and HGAB 2027, making the return visible without assuming annual funding. This is an allocation pattern; it does not establish whether projects were needed, deferred, or delivered in any particular year. The sharp 2026 flood-control change should be read alongside its classified row count and source coverage.

Selected district · share of classified allocations

Pale bars show the average district share for each year; the colored bars show the selected district’s share of that year’s all-district allocation. The dashed line retains the selected district’s GAA average. Hover for peso amounts.

Year · stageDistrict rowsDistrict allocationAll-district totalDistrict shareComparison

HGAB 2027 amounts above the full recorded GAA high

Top current amounts by family that exceed the highest available prior GAA amount. Roads have the largest combined excess in this top-five-per-family screen, led by Bukidnon 2nd and Misamis Oriental 2nd. Each comparison requires at least two GAA years with assigned records and a 2027 total of at least ₱100M. These are review leads, not insertion findings.

Project familyDistrictHGAB 2027Prior GAA highAbove highChange vs GAA average

The comparison uses integrated district assignments: unique qualified project locations only. Shared, ambiguous and unresolved titles are excluded; assigned coverage varies by year. The average uses only years with positive assigned amounts, not missing years as zero. The NEP 2026 +61.9% result and the HGAB 2027 district screen use different datasets and budget stages; the percentage threshold is a comparison cue, not a finding that the same mechanism recurred.

2. Historical context: the Bulacan flood-control pattern

The chart uses DPWH flood-control contract records in the current archived contract records. It shows the annual count and contract value in Bulacan alongside the national total. The strongest visible change is from 2022 to 2023; Bulacan remained the largest single-province total in 2024.

Bulacan project count

Contracts per infrastructure year

Bulacan contract value

₱ billions; compare Bulacan with all other provinces

YearBulacan projectsChangeBulacan contract valueNational cost share

The dataset contains 9,855 contract records dated 2018–2025. Coverage is sparse in 2021 (12 Bulacan records) and in 2025; treat 2021 as a weak baseline. The principal rise shown here is 2022–2023. Contract value is not the same as appropriation or disbursement.

3. An earlier broad surge: Ilocos Norte 1st, FY2022–FY2023

The full-history comparison above is the main screen. This earlier two-year window is shown because it illustrates a broad GAA increase across all four project families; it is not the only period being tested, and it is not the same source or unit as the Bulacan contract chart.

Ilocos Norte · 1st District shows a broad increase. Its categorized project total rose from ₱2.20B across 130 rows in FY2022 GAA to ₱8.51B across 324 rows in FY2023 GAA. Flood control, roads, bridges, and MPBs each increased. The bridge percentage is especially sensitive to its small ₱10M baseline.

Ilocos Norte 1st · project-family allocations

FY2022 GAA (blue) compared with FY2023 GAA (orange) · ₱ billions

Project family2022 GAA rows2022 GAA amount2023 GAA rows2023 GAA amountChange

Ilocos Norte 1st · annual classified amounts

GAA years are shown separately from 2027 HGAB 3rd. “—” means no uniquely assigned row for that family in this snapshot, not a confirmed zero appropriation.

Year · stageRowsAll classifiedFlood controlMPBRoadBridge

Largest district increases by project family

Top five absolute increases for each family from FY2022 to FY2023, requiring at least ₱100M in the 2022 baseline. Ilocos Norte 1st’s Bridge increase is retained in its district table above but omitted from this cross-district ranking because its starting amount was below the threshold.

FamilyDistrict2022 GAA2023 GAAIncreaseChange

These totals use the integrated analysis’ strict unique-location assignments. Shared, ambiguous and unresolved rows are excluded, and coverage varies by year. An increase is a comparison lead; it does not establish why funding changed or who requested a project.

4. MPB: a return after a low year

The all-years comparison shows MPB allocations returning above their all-other-years averages in 2025, 2026, and HGAB 2027 after the low 2024 GAA level. That supports examining a multi-year funding cycle rather than expecting the same level every year. Ilocos Norte 1st is also a district-level HGAB historical high; neither pattern by itself explains the allocation or establishes project need.

Current reading: MPB is not yet a confirmed second Bulacan-style case. The closest testable lead is a high volume of repeated or similarly titled projects paired with frequent round allocations; broader geographic concentration and year-over-year budget growth still need a like-for-like dataset.
Pattern testWhat the current data showsAssessment

5. Where the Bulacan totals recur

These localities had the largest combined contract values in the Bulacan 2022–2024 records. This is geographic concentration within the province, not evidence that the projects share a contractor, scope or outcome.

Top municipalities and cities by contract value

Bulacan, 2022–2024 · ₱ billions

Locality label in sourceProjectsContract value

6. MPB allocation amounts to review

Frequent rounded amounts can reflect standard scopes or budgeting practices. They are a way to group records for inspection, not a standalone risk finding.

Most frequent amounts among MPB insertion candidates

Number of provisional candidate lines

HGAB amountCandidate lines

7. How to read this comparison

Sources: archived flood-control, district, and building project records. The older NEP 2026 summary is not used for these headline comparisons because its generated artifacts are dated October 2025.