Dam Ledger
The public accountability report for every dam in America — because 92,000 aging structures holding back billions of gallons shouldn't be somebody else's problem.
Consumer-facing dam safety intelligence — risk scorecards, condition tracking, inspection gap analysis, weather-stress correlation, and "what happens if it fails" inundation narratives, all auto-generated from government APIs and delivered as beautiful, location-aware data journalism.
Niche Explored
Dam safety intelligence & aging infrastructure risk — consumer-facing, location-aware dam risk monitoring combining government dam databases, real-time water/weather data, and AI-synthesized risk narratives.
Why This Niche NOW
- Hawaii dam scare (March 2026): Wahiawā Dam on Oahu nearly failed during catastrophic flooding, thousands evacuated. Dole Food Co. ignored warnings for 50 years. Massive news coverage.
- ASCE 2025 Infrastructure Report Card: Dams received a D+ grade. Nearly 17,000 US dams classified as “high-hazard potential.”
- 92,000+ dams in the US alone, average age exceeding 60 years. Many built with 50-year design lives — they’re past expiry.
- India’s 6,600 dams face mandatory 2026 safety deadline, massive global story.
- Nature Water paper (2025): “Age, climate and economic disparities drive the current state of global dam safety” — academic validation of the crisis.
- Derna, Libya (2023): Two dam collapses killed 4,000+ people. Nigeria’s Alau Dam collapse (2024) displaced hundreds of thousands. Dam failures are INCREASING globally.
- Climate change: More extreme rainfall events → more dam stress → more failures. This is a growing, not shrinking, problem.
Existing Competition
- usdamsdata.com — Basic database frontend for NID data. Ugly, no analysis, no narrative, no risk intelligence. Just raw data in tables.
- BridgeStats.com/dams — Statistics dashboard. Informational but dry. No storytelling, no location-aware alerts.
- ASDSO (damsafety.org) — Industry association. Content for dam safety professionals, not consumers. Dense, technical.
- FEMA/NID official site — Government database. Powerful but impenetrable for regular people. No risk narratives.
- Boston Globe “Do you live near a dam?” — One-off article with a map. Great concept, but a single article, not ongoing.
- KETV “Do you live by an unsafe dam?” — Similar one-off investigative piece.
GAP: Nobody is doing ONGOING, consumer-facing, narrative-rich dam safety journalism. The data exists. The public interest is massive (every flood + dam scare drives huge search spikes). But there’s no dedicated channel translating government data into “should I be worried?” intelligence.
Data Sources Found
Primary: National Inventory of Dams (NID) API
- URL: https://nid.sec.usace.army.mil/api/
- Swagger docs: https://nid.sec.usace.army.mil/api/developer/static/index.html
- Free tier: Public API, no key required for basic queries
- Data: 92,000+ dams — name, location, hazard classification, condition assessment, year built, dam type, height, storage, purpose, owner, last inspection date, emergency action plan status
- Query capabilities: Filter by state, hazard class, condition, year built, dam type
- ArcGIS service: https://geospatial.sec.usace.army.mil/dls/rest/services/NID/ — geospatial queries
Secondary: USGS Water Data APIs
- URL: https://api.waterdata.usgs.gov/ and https://waterservices.usgs.gov/
- Free: Completely free, no API key
- Data: Real-time streamflow, water levels at 13,000+ monitoring stations
- Relevance: Can correlate dam locations with nearby stream gauges to show real-time water conditions
Tertiary: NOAA National Water Prediction Service
- URL: https://water.noaa.gov/about/api
- Free: Public API
- Data: River forecasts, precipitation estimates, flood warnings
- Relevance: Overlay forecast data on dam locations for “stress indicators”
Quaternary: Global Reservoir and Dam Database (GRanD)
- URL: https://www.globaldamwatch.org/grand
- NASA dataset: https://data.nasa.gov/dataset/global-reservoir-and-dam-database-version-1-grandv1-reservoirs-revision-01
- Data: 6,862 major reservoirs globally with storage capacity, catchment area
- Relevance: International coverage for global stories
Additional Sources
- ASDSO Dam Incident Database: https://damsafety.org/incidents — historical dam failures/incidents
- Open-Meteo API: Free weather forecasts and historical weather data (precipitation)
- State dam safety programs: Many states publish their own dam inspection reports
- USGS earthquake data: https://earthquake.usgs.gov/fdsnws/ — seismic risk overlay for dams
SEO Analysis
- “dam near me” — High intent, location-aware query. Essentially no good content serving it.
- “dam safety” + [state] — Underserved. Government pages rank but are unreadable.
- “dam failure risk” — Spikes massively after every flood event (Hawaii March 2026, Libya 2023).
- “aging dams” — Growing search trend, academic and media coverage increasing.
- “high hazard dam” — Technical term that appears in news but has no consumer-friendly explainer.
- Long-tail gold: “is [dam name] safe”, “dams near [city]”, “worst dams in [state]” — zero good content for these.
- News cycle amplifier: Every flood, every dam scare = massive traffic spike to anyone with this content.
Communities
- r/CatastrophicFailure (1.3M members) — Dam failures are top content
- r/collapse — Infrastructure collapse content is popular
- r/infrastructure — Niche but engaged
- r/preppers — “What dams am I downstream from?” is a common question
- r/urbanplanning — Dam decommissioning is a hot topic
- Local subreddits — State/city dam scares drive massive engagement
- Twitter/X: #DamSafety, infrastructure accounts
- Engineering communities: ASCE, dam safety professionals who amplify credible content
Image/Graphic Feasibility
- EXCELLENT: Maps are the killer feature. Dam locations + hazard ratings + condition + age = gorgeous data visualizations
- Heatmaps: Dam age/condition by region
- Risk scorecards: Per-dam visual report cards (like a health checkup)
- Inundation zone maps: “What floods if this dam fails” — most compelling visual
- Trend charts: Dam condition over time, inspection gaps, spending shortfalls
- Comparison graphics: “Your dam vs. the dam that failed in Libya”
- AI-generated: Photorealistic illustrations of dam types, failure modes, emergency scenarios
Sources
- https://nid.sec.usace.army.mil/api/developer/static/index.html
- https://api.waterdata.usgs.gov/
- https://water.noaa.gov/about/api
- https://www.globaldamwatch.org/grand
- https://www.infrastructurereportcard.org/dams/
- https://bridgestats.com/dams
- https://damsafety.org/incidents
- https://www.asce.org/publications-and-news/civil-engineering-source/article/2026/03/12/aging-us-dams-pose-rising-safety-risks-how-can-civil-engineers-help
- https://www.nature.com/articles/s44221-025-00402-1
- https://scientificamerican.com/article/dams-worldwide-are-at-risk-of-catastrophic-failure
- https://www.civilbeat.org/2026/03/were-screwed-dole-did-little-to-fix-dangerous-wahiawa-dam/