{
 "tool": "channel-flow",
 "toolVersion": "1.0.0",
 "methods": [
  "manning-uniform 1.0.0"
 ],
 "commit": "ab22876",
 "date": "2026-11-04",
 "summary": "11 of 11 cases (129 values) within tolerance against Hydraulic Toolbox 5.5.3.0, TxDOT Hydraulic Design Manual.",
 "note": "Generated by _workspace/tools/hh_verification.mjs from the fixtures; commit = code verified.",
 "cases": [
  {
   "id": "TB-C1",
   "what": "Trapezoidal, normal depth",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 13,
   "maxDiff": "0.14 %",
   "pass": true
  },
  {
   "id": "TB-C2",
   "what": "Rectangular, normal depth",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 13,
   "maxDiff": "0.09 %",
   "pass": true
  },
  {
   "id": "TB-C3",
   "what": "Triangular, normal depth",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 13,
   "maxDiff": "0.20 %",
   "pass": true
  },
  {
   "id": "TB-C4",
   "what": "Circular, normal depth",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 13,
   "maxDiff": "0.15 %",
   "pass": true
  },
  {
   "id": "TB-C5",
   "what": "Circular, normal depth (two-depth range, warning required)",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 13,
   "maxDiff": "0.09 %",
   "pass": true
  },
  {
   "id": "TB-C6",
   "what": "Circular, discharge above the largest open-channel flow (refusal)",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 1,
   "maxDiff": "both refuse",
   "pass": true
  },
  {
   "id": "TB-C7",
   "what": "Trapezoidal, discharge",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 13,
   "maxDiff": "0.07 %",
   "pass": true
  },
  {
   "id": "TB-C8",
   "what": "Irregular, normal depth",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 13,
   "maxDiff": "0.23 %",
   "pass": true
  },
  {
   "id": "TB-C9",
   "what": "Irregular, n by segment, normal depth",
   "reference": "Hydraulic Toolbox 5.5.3.0 (owner-run 2026-11-01)",
   "compared": 14,
   "maxDiff": "0.16 %",
   "pass": true
  },
  {
   "id": "TX-HDM-7-14-79",
   "what": "Irregular, n by segment, discharge",
   "reference": "TxDOT Hydraulic Design Manual (published example)",
   "compared": 18,
   "maxDiff": "0.24 %",
   "pass": true
  },
  {
   "id": "TX-HDM-7-14-66",
   "what": "Irregular, n by segment, discharge",
   "reference": "TxDOT Hydraulic Design Manual (published example)",
   "compared": 5,
   "maxDiff": "0.30 %",
   "pass": true
  }
 ]
}