{
 "ocl_version": "0.1.0",
 "name": "Harris Street",
 "slug": "harris-street",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.119602098860526,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 72.0,
   "end_distance_m": 74.0,
   "start_elevation_m": 213.86442586173175,
   "end_elevation_m": 214.32681790370896,
   "min_gradient_pct": -5.136516371455002
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.867469693051135,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 392.0,
   "end_distance_m": 395.0,
   "start_elevation_m": 246.60341966156463,
   "end_elevation_m": 247.28944375235616,
   "min_gradient_pct": -4.7397788732951085
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.686527305410777,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 392.0,
   "end_distance_m": 397.0,
   "start_elevation_m": 246.60341966156463,
   "end_elevation_m": 247.73774602683517,
   "min_gradient_pct": -4.539517642361943
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.136410419381605,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 388.0,
   "end_distance_m": 398.0,
   "start_elevation_m": 245.73751237019198,
   "end_elevation_m": 247.95115341213014,
   "min_gradient_pct": -4.251609989430278
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.779914867321963,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 385.0,
   "end_distance_m": 405.0,
   "start_elevation_m": 245.1135922028258,
   "end_elevation_m": 249.4695751762902,
   "min_gradient_pct": -3.8608234688346954
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.683667632910215,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 380.0,
   "end_distance_m": 405.0,
   "start_elevation_m": 244.04865826806264,
   "end_elevation_m": 249.4695751762902,
   "min_gradient_pct": -3.497959941329327
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.613835893207693,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 355.0,
   "end_distance_m": 405.0,
   "start_elevation_m": 239.16265722968635,
   "end_elevation_m": 249.4695751762902,
   "min_gradient_pct": -1.6305452684902093
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.695528168135525,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 314.0,
   "end_distance_m": 414.0,
   "start_elevation_m": 232.98624320315292,
   "end_elevation_m": 250.68177137128845,
   "min_gradient_pct": 2.250116519168273
  }
 ],
 "shape": {
  "ascent_concentration": 0.41,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 104.0,
  "shape_class": "sustained"
 },
 "length_m": 416.1405359888672,
 "start_elevation_m": 207.93519600494426,
 "end_elevation_m": 250.8368121455356,
 "endpoint_gain_m": 42.90161614059133,
 "overall_gradient_pct": 10.309405700803696,
 "accumulated_ascent_m": 43.93861931647899,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.686527305410777,
   "start_distance_m": 392.0,
   "end_distance_m": 397.0,
   "midpoint_distance_m": 394.5,
   "start_elevation_m": 246.60341966156463,
   "end_elevation_m": 247.73774602683517,
   "start_xy": [
    653879.9339991407,
    4730010.279143205
   ],
   "end_xy": [
    653879.9069996515,
    4730015.279069707
   ]
  },
  "max_10m": {
   "gradient_pct": 22.136410419381605,
   "start_distance_m": 388.0,
   "end_distance_m": 398.0,
   "midpoint_distance_m": 393.0,
   "start_elevation_m": 245.73751237019198,
   "end_elevation_m": 247.95115341213014,
   "start_xy": [
    653879.9549988077,
    4730006.279198703
   ],
   "end_xy": [
    653879.9019996568,
    4730016.279057207
   ]
  },
  "max_20m": {
   "gradient_pct": 21.779914867321963,
   "start_distance_m": 385.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 395.0,
   "start_elevation_m": 245.1135922028258,
   "end_elevation_m": 249.4695751762902,
   "start_xy": [
    653879.9709985498,
    4730003.2792417025
   ],
   "end_xy": [
    653880.3463486382,
    4730023.250617428
   ]
  },
  "max_25m": {
   "gradient_pct": 21.683667632910215,
   "start_distance_m": 380.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 392.5,
   "start_elevation_m": 244.04865826806264,
   "end_elevation_m": 249.4695751762902,
   "start_xy": [
    653879.9969984514,
    4729998.279309702
   ],
   "end_xy": [
    653880.3463486382,
    4730023.250617428
   ]
  },
  "max_50m": {
   "gradient_pct": 20.613835893207693,
   "start_distance_m": 355.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 380.0,
   "start_elevation_m": 239.16265722968635,
   "end_elevation_m": 249.4695751762902,
   "start_xy": [
    653879.5950383479,
    4729973.287649314
   ],
   "end_xy": [
    653880.3463486382,
    4730023.250617428
   ]
  },
  "max_100m": {
   "gradient_pct": 17.695528168135525,
   "start_distance_m": 314.0,
   "end_distance_m": 414.0,
   "midpoint_distance_m": 364.0,
   "start_elevation_m": 232.98624320315292,
   "end_elevation_m": 250.68177137128845,
   "start_xy": [
    653877.9210001583,
    4729932.332920812
   ],
   "end_xy": [
    653882.2803670019,
    4730032.02087564
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.539517642361943,
   "start_distance_m": 199.0,
   "end_distance_m": 204.0,
   "midpoint_distance_m": 201.5,
   "start_elevation_m": 228.0814639598018,
   "end_elevation_m": 227.8544880776837,
   "start_xy": [
    653874.614013032,
    4729817.384420391
   ],
   "end_xy": [
    653874.7709985514,
    4729822.381954731
   ]
  },
  "min_10m": {
   "gradient_pct": -4.251609989430278,
   "start_distance_m": 196.0,
   "end_distance_m": 206.0,
   "midpoint_distance_m": 201.0,
   "start_elevation_m": 228.19065207818366,
   "end_elevation_m": 227.76549107924063,
   "start_xy": [
    653874.518997699,
    4729814.385925775
   ],
   "end_xy": [
    653874.8339987838,
    4729824.380961994
   ]
  },
  "min_20m": {
   "gradient_pct": -3.8608234688346954,
   "start_distance_m": 193.0,
   "end_distance_m": 213.0,
   "midpoint_distance_m": 203.0,
   "start_elevation_m": 228.29817191573855,
   "end_elevation_m": 227.5260072219716,
   "start_xy": [
    653874.4250123597,
    4729811.387398698
   ],
   "end_xy": [
    653875.0540155825,
    4729831.377502665
   ]
  },
  "min_25m": {
   "gradient_pct": -3.497959941329327,
   "start_distance_m": 190.0,
   "end_distance_m": 215.0,
   "midpoint_distance_m": 202.5,
   "start_elevation_m": 228.35039648943288,
   "end_elevation_m": 227.47590650410055,
   "start_xy": [
    653874.3309959228,
    4729808.388872586
   ],
   "end_xy": [
    653875.1170158067,
    4729833.376509896
   ]
  },
  "min_50m": {
   "gradient_pct": -1.6305452684902093,
   "start_distance_m": 183.0,
   "end_distance_m": 233.0,
   "midpoint_distance_m": 208.0,
   "start_elevation_m": 228.3135336781734,
   "end_elevation_m": 227.4982610439283,
   "start_xy": [
    653874.110011597,
    4729801.392362407
   ],
   "end_xy": [
    653875.6829878323,
    4729851.367607497
   ]
  },
  "min_100m": {
   "gradient_pct": 2.250116519168273,
   "start_distance_m": 173.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 223.0,
   "start_elevation_m": 227.5765692268734,
   "end_elevation_m": 229.82668574604168,
   "start_xy": [
    653873.7960091367,
    4729791.397294733
   ],
   "end_xy": [
    653876.9409942783,
    4729891.347815429
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.119602098860526,
   "start_distance_m": 72.0,
   "end_distance_m": 74.0,
   "midpoint_distance_m": 73.0,
   "start_elevation_m": 213.86442586173175,
   "end_elevation_m": 214.32681790370896,
   "start_xy": [
    653870.4119980994,
    4729690.454938692
   ],
   "end_xy": [
    653870.4739993002,
    4729692.453977423
   ]
  },
  "max_3m": {
   "gradient_pct": 22.867469693051135,
   "start_distance_m": 392.0,
   "end_distance_m": 395.0,
   "midpoint_distance_m": 393.5,
   "start_elevation_m": 246.60341966156463,
   "end_elevation_m": 247.28944375235616,
   "start_xy": [
    653879.9339991407,
    4730010.279143205
   ],
   "end_xy": [
    653879.9179993987,
    4730013.279100206
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ma/USGS_1M_18_x65y473_MA_Western_B24.tif",
   "data/cache/usa/ma/USGS_1M_18_x65y474_MA_Western_B24.tif"
  ],
  "calculated_at": "2026-09-03T17:24:03+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/harris-street/harris-street.geojson",
  "run_id": "canopy-all-260903",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, MA_Western_B24 (collected 2023-24)",
  "elevation_tile_ids": [
   "x65y473",
   "x65y474"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: NY_Region2Lot1-FEMA_2012: EPT covers only 23% of stations",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "North Adams",
  "county": "Massachusetts"
 }
}