Infrastructure Decay & Disruption Map by ZIP
See how the water pipes, bridges, and gas lines around your ZIP code are aging — a modeled infrastructure stress score from public federal data.
- A modeled infrastructure stress score and national percentile
- Water-pipe decay trend, estimated age, and failure probability
- Bridge condition (FHWA NBI) and gas-pipeline incident history
What the report shows
- A modeled infrastructure stress score with national percentile context
- Water-pipe decay trend, system age, likely material, and failure probability
- Bridge condition from the FHWA National Bridge Inventory
- Gas-pipeline incident history and a 90-day service-disruption estimate
Infrastructure stress by state
Average modeled infrastructure stress score by state, from public federal data.
Frequently Asked Questions
What is an infrastructure stress score?
It is a modeled 0-100 score that combines four public federal datasets — water-pipe decay, bridge condition, gas-pipeline incident history, and a 90-day service-disruption estimate — into one area-level measure. A higher score means more of the surrounding infrastructure is modeled as aging or strained. It is an estimate, not an engineering assessment.
Where does the data come from?
Water-pipe decay is modeled from U.S. Census housing age, EPA ECHO compliance records, and EPA infrastructure-needs data. Bridge condition comes from the Federal Highway Administration's National Bridge Inventory. Gas-pipeline incident history comes from PHMSA. The 90-day disruption estimate uses EPA and FEMA data.
Does a high score mean the infrastructure will fail?
No. The score describes how aging or strained the surrounding infrastructure is modeled to be — it is not a prediction that any pipe, bridge, or pipeline will fail. It is a planning estimate based on public data, not an inspection of any specific structure.
Is this about my home?
No. The figures describe the public infrastructure around a ZIP code — municipal water mains, bridges, and gas distribution lines — not the plumbing or condition of any individual home. A plumber can inspect a home's own supply line.
How often is the data updated?
The underlying federal datasets refresh on a quarterly schedule. Each lookup reflects the most recent modeled figures.
Data Sources & Methodology
Data Sources
- U.S. Census ACS, EPA ECHO, EPA infrastructure-needs data — Water-pipe decay model — housing age, compliance history, and infrastructure-needs data
- FHWA National Bridge Inventory — Area-level bridge counts, structural ratings, and average age
- PHMSA pipeline incident data — Historical gas-pipeline incident counts by area
Methodology
Water-pipe decay is modeled with an exponential-decay bathtub curve. Bridge condition is read directly from the FHWA National Bridge Inventory, and gas-pipeline incidents from PHMSA historical data. The 90-day disruption estimate combines infrastructure age, EPA violation history, flood exposure, and seasonal patterns. The overall stress score is a weighted composite of these four signals, normalized to a 0-100 scale.