Build a More Flood-Resilient Community
Oiriunu gives municipalities the risk intelligence, project prioritisation tools, and funding alignment support they need to protect residents and infrastructure — before the next flood.
Communities face a compounding flood crisis — and the tools haven’t kept up
Flood risk is increasing at the community scale faster than most municipal planning and infrastructure systems can track. The combination of changing precipitation patterns, decades of development in floodplains, and ageing stormwater infrastructure creates a risk profile that existing tools — FEMA maps, annual inspection cycles, reactive maintenance — were not designed to handle.
The gap is not just physical. Most municipalities lack the staff capacity, data infrastructure, and cross-departmental alignment to turn available risk information into prioritised, fundable projects. Federal mitigation funding exists but goes unclaimed. Projects sit in planning cycles for years while risk accumulates.
Increasing flood risk at community scale
Extreme precipitation events have increased 37% in the Northeast and 15% nationally since 1958. Combined with three decades of continued floodplain development, the risk profile of most US communities has shifted significantly beyond what their flood maps reflect.
First Street Foundation estimates 14.6 million US properties face substantial flood risk not captured in FEMA designations — concentrated in communities that lack the data infrastructure to know it.
are 10+ years old
substantial flood risk
events (Northeast, since 1958)
Infrastructure designed for a different climate
The vast majority of US stormwater and drainage infrastructure was designed and built between 1950 and 1990 — for precipitation patterns and land use that no longer exist. These systems are now routinely overwhelmed by storms that were historically rare.
The American Society of Civil Engineers estimates a $179 billion investment gap in stormwater infrastructure alone. Without prioritisation tools, most municipalities cannot identify where investment will have the greatest risk reduction impact.
investment gap
stormwater systems
infrastructure
flood control
systems
infrastructure
Infrastructure grades: American Society of Civil Engineers 2021 Report Card for America’s Infrastructure.
From scattered risk data to fundable, prioritised projects
Oiriunu provides municipalities with four integrated capabilities — built on the same platform that serves individual homeowners, scaled and extended for community-level decision-making. Each capability addresses a specific failure point in the current municipal flood resilience workflow.
Identify community risks
Aggregate property-level risk data across your jurisdiction to build a community-scale flood risk profile — including unmapped risk, infrastructure vulnerability hotspots, and the gap between FEMA designations and modelled exposure.
Prioritise projects
Translate risk data into a ranked project pipeline — ordered by benefit-cost ratio, funding eligibility, feasibility, and equity weighting. Move from “we know there’s a problem” to “here are the three projects we should fund first.”
Align funding
Match your priority projects to the federal, state, and local funding programs most likely to fund them — with application window tracking, eligibility confirmation, and documentation guidance for each program.
Connect with vetted partners
Access a network of contractors, engineers, surveyors, and grant writers with documented flood mitigation experience — and connect residents directly to the resources they need to implement property-level measures alongside community projects.
From community assessment to executed project
A structured four-stage workflow that takes a municipality from initial risk assessment to funded, executing project — with Oiriunu providing tools and support at every stage.
Assess → Prioritise → Fund → Execute
Each stage produces outputs that directly feed the next — building toward a fully documented, grant-ready project pipeline.
Assess community risk
Build a complete, address-level flood risk profile for your jurisdiction
Identify priority zones
Translate risk data into a ranked project pipeline with benefit-cost analysis
Align with funding
Match priority projects to federal and state programs and prepare grant applications
Execute projects
Connect with vetted contractors and track project delivery through completion
Measurable risk reduction
Community resilience score tracked at every stage — not just project completion.
Maximised grant capture
Every eligible project matched to every applicable funding program, on time.
Resident-aligned delivery
Property-level tools for residents integrate with community-scale project delivery.
Built for the specific constraints municipalities face
Oiriunu was designed with an understanding of how municipal flood resilience work actually operates — constrained staff capacity, siloed departments, political cycles, and the tension between immediate maintenance demands and long-term capital planning. Our tools fit into existing workflows rather than requiring new ones.
Nonprofit — no conflicted interests
Oiriunu has no commercial relationships with contractors, insurers, or engineering firms. Our project recommendations and provider connections are based purely on capability and fit — not referral arrangements.
Designed for limited staff capacity
Municipal flood resilience teams are typically small. Our platform automates the data aggregation, analysis, and documentation tasks that currently consume staff time — freeing capacity for stakeholder engagement and execution.
Bridges community and household scale
The same platform that municipalities use for community risk assessment provides resident-facing tools for individual homeowners. Community and property-scale resilience work is coordinated rather than siloed.
Grant alignment built in from day one
Benefit-cost analysis, eligibility screening, and documentation requirements are integrated into the project assessment workflow — not bolted on after the fact when a grant window opens.
Equity-weighted prioritisation
Risk prioritisation tools include equity weighting — ensuring LMI communities and disproportionately exposed populations are elevated in the project pipeline, consistent with Justice40 and BRIC scoring criteria.
No new systems to learn
Oiriunu delivers outputs in the formats municipal staff already use — reports for elected officials, GIS-ready data for planning, and documentation packages formatted for FEMA submission. Integration over replacement.
Run a Municipal Risk Review
Start with a community-level flood risk overview for your jurisdiction — identifying unmapped risk, infrastructure gaps, and the highest-priority zones for investment. No commitment required.
Already working with a floodplain manager? Contact us directly →
Speak with our municipal team
For larger jurisdictions, multi-county initiatives, or partnership enquiries, reach us directly. We work with municipalities of all sizes — from small towns to major metro areas.