{
  "id": 5589285,
  "title": "Illinois expressway used coal fly ash in 1972; monitoring found no major issues",
  "url": "https://urgent.news/2026/09/04/illinois-expressway-used-coal-fly-ash-in-1972-monitoring-found-no",
  "topic": "culture",
  "section": "Culture",
  "published": "2026-09-04T14:39:57.000Z",
  "source": {
    "name": "Times of India",
    "slug": "times-of-india",
    "url": "https://timesofindia.indiatimes.com/world/us/in-1972-illinois-used-246000-cubic-yards-of-coal-fly-ash-beneath-7500-feet-of-expressway-monitoring-found-no-evidence-of-settlement-frost-or-capillary-rise-problems/articleshow/133765630.cms"
  },
  "original_language": "en",
  "account": null,
  "summary": "In 1972, a groundbreaking Illinois expressway project utilized coal fly ash for highway embankment fill, showcasing remarkable structural integrity over time. Vigilant monitoring revealed no concerns with settlement, frost heave, or groundwater. This successful initiative not only prompted other states to adopt fly ash recycling standards but also demonstrated that industrial byproducts can…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}