{
  "title": "Silver Bridge: the statute, the rule and the recommendation that followed",
  "description": "Three records of what changed after the collapse: the 1968 statute, the 1971 inspection rule and the NTSB's recommendation 2. One row per record, with what it says, which bridges it covers, where it appeared and its date (the act's approval, the rule's publication, the report's adoption), and whether its text names the Silver Bridge (checked by searching the full text). Quoted words are from the documents named in each row.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "From the Surviving Record",
  "page": "https://fromthesurvivingrecord.com/failures/silver-bridge/",
  "derived_from": [
    "National Transportation Safety Board, Highway Accident Report NTSB-HAR-71-1 (adopted 16 December 1970), pages named in each label",
    "Federal-Aid Highway Act of 1968, Pub. L. 90-495, 82 Stat. 815, sec. 26 (82 Stat. 829)",
    "Federal Register vol. 36 no. 81 (27 April 1971), pp. 7851-7852, 23 CFR Part 25"
  ],
  "method": "Compiled by From the Surviving Record from the data listed",
  "data_credit": [
    "National Transportation Safety Board, Highway Accident Report NTSB-HAR-71-1, Collapse of U.S. 35 Highway Bridge, Point Pleasant, West Virginia (1970), retrieved 2026-11-01, public domain",
    "Federal-Aid Highway Act of 1968, Public Law 90-495, 82 Stat. 815 (1968), retrieved 2026-11-01, public domain",
    "National Bridge Inspection Standards, 23 CFR Part 25, Federal Register vol. 36, pp. 7851-7852 (1971), retrieved 2026-11-01, public domain"
  ]
}