---
license: cc-by-4.0
language:
  - en
tags:
  - bridge
  - infrastructure
  - storm-events
  - weather
  - deterioration
  - civil-engineering
  - united-states
  - noaa
pretty_name: Bridgedeck — NOAA Storm Events (2000–2023)
size_categories:
  - 10K<n<100K
---

# Bridgedeck — NOAA Storm Events (2000–2023)

Part of the **bridgedeck** dataset collection for US bridge deck deterioration research.

## Overview

County-level severe weather event counts and damage totals for all US counties,
2000–2023. Derived from the NOAA National Centers for Environmental Information (NCEI)
Storm Events Database.

Events are grouped into 5 categories relevant to bridge deterioration: flood, wind,
hail, winter storms, and tornadoes. Includes single-year counts and 5-year rolling sums
to capture cumulative storm exposure.

## Source

**Source:** [NOAA NCEI Storm Events Database](https://www.ncdc.noaa.gov/stormevents/)

**Downloaded files:** Annual CSV.gz files, 2000–2023
(`StormEvents_details-ftp_v1.0_d{YEAR}_*.csv.gz`)

## Schema

One row per `(county_fips, year)`. Primary key: `(county_fips, year)`.

| Column | Type | Description |
|--------|------|-------------|
| `county_fips` | str | 5-digit FIPS county code (`state_fips + county_fips`) |
| `year` | int | Year (2000–2023) |
| `flood_count` | float | Flood, Flash Flood, Heavy Rain, Storm Surge events |
| `wind_count` | float | Thunderstorm Wind, High Wind, Hurricane events |
| `hail_count` | float | Hail events |
| `winter_count` | float | Ice Storm, Blizzard, Winter Storm, Heavy Snow events |
| `tornado_count` | float | Tornado, Waterspout events |
| `storm_damage_total_usd` | float | Total property damage from all storm events (USD) |
| `storm_damage_max_usd` | float | Maximum single-event property damage (USD) |
| `flood_count_5yr_sum` | float | 5-year rolling sum of flood events |
| `wind_count_5yr_sum` | float | 5-year rolling sum of wind events |
| `hail_count_5yr_sum` | float | 5-year rolling sum of hail events |
| `winter_count_5yr_sum` | float | 5-year rolling sum of winter storm events |
| `tornado_count_5yr_sum` | float | 5-year rolling sum of tornado events |
| `storm_damage_total_usd_5yr_sum` | float | 5-year rolling sum of total damage (USD) |
| `storm_damage_max_usd_5yr_sum` | float | 5-year rolling sum of max single-event damage (USD) |

## Join Key

Join to NBI bridge data on `county_fips` = `state_code.zfill(2) + county_code.zfill(3)`.

## Processing Notes

- County-level events (`CZ_TYPE='C'`) are joined directly via FIPS code.
- Winter storm events are almost exclusively reported at NWS forecast zone level
  (`CZ_TYPE='Z'`). These are expanded to counties using the
  **NWS Zone-County Correlation File** (`nws_zone_county.dbx`), downloaded
  automatically during ETL.
- 5-year rolling sums use `min_periods=3` (NaN for years 2000–2001).
- Property damage strings (e.g. `"1.5K"`, `"2M"`) are parsed to USD floats.

## Related Datasets

| Repo | Description |
|------|-------------|
| `sweetapricity/bridgedeck-nbi` | National Bridge Inventory — structural features, 2000–2023 |
| `sweetapricity/bridgedeck-prism` | PRISM climate features at bridge locations, 2000–2023 |
| `sweetapricity/bridgedeck-noaa` | **This dataset** — NOAA storm event counts by county, 2000–2023 |
| `sweetapricity/bridgedeck-nshm` | USGS seismic hazard at bridge locations (static) |
| `sweetapricity/bridgedeck-nfhl` | FEMA flood zone classification at bridge locations (static) |
| `sweetapricity/bridgedeck-salt` | USGS road salt tiers by state (static) |

## Paper

> Ibrahim, A., Abdelkhalek, S., Zayed, T., Qureshi, A. H., & Mohammed Abdelkader, E.
> (2024). A comprehensive review of the key deterioration factors of concrete bridge
> decks. *Buildings*, 14(11), 3425.