{
 "ocl_version": "0.1.0",
 "name": "Pierce Street",
 "slug": "pierce-street-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.1545658374269,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 119.0,
   "end_distance_m": 121.0,
   "start_elevation_m": 200.19087668175933,
   "end_elevation_m": 200.69396799850787,
   "min_gradient_pct": 1.3304106262609139
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.609747563667383,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 118.0,
   "end_distance_m": 121.0,
   "start_elevation_m": 199.95567557159785,
   "end_elevation_m": 200.69396799850787,
   "min_gradient_pct": 1.524136072841505
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.550618288422243,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 150.0,
   "end_distance_m": 155.0,
   "start_elevation_m": 207.04420226286584,
   "end_elevation_m": 208.22173317728695,
   "min_gradient_pct": 1.6528119788540607
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.24796934507276,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 112.0,
   "end_distance_m": 122.0,
   "start_elevation_m": 198.58426596620086,
   "end_elevation_m": 200.90906290070814,
   "min_gradient_pct": 2.6677840139348064
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.778697904456067,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 108.0,
   "end_distance_m": 128.0,
   "start_elevation_m": 197.715439301527,
   "end_elevation_m": 202.2711788824182,
   "min_gradient_pct": 4.169842146154394
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.632505895235,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 103.0,
   "end_distance_m": 128.0,
   "start_elevation_m": 196.61305240860946,
   "end_elevation_m": 202.2711788824182,
   "min_gradient_pct": 4.252088113686796
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.36275840541799,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 105.0,
   "end_distance_m": 155.0,
   "start_elevation_m": 197.04035397457795,
   "end_elevation_m": 208.22173317728695,
   "min_gradient_pct": 4.6107157111118795
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.64140578911781,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 101.0,
   "end_distance_m": 201.0,
   "start_elevation_m": 196.27408927020656,
   "end_elevation_m": 214.91549505932437,
   "min_gradient_pct": 4.76643977446065
  }
 ],
 "shape": {
  "ascent_concentration": 0.398,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 280.0,
  "shape_class": "sustained"
 },
 "length_m": 712.1049080630416,
 "start_elevation_m": 187.06353531364425,
 "end_elevation_m": 263.4434756063997,
 "endpoint_gain_m": 76.37994029275546,
 "overall_gradient_pct": 10.725939314266551,
 "accumulated_ascent_m": 76.38120493583443,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.550618288422243,
   "start_distance_m": 150.0,
   "end_distance_m": 155.0,
   "midpoint_distance_m": 152.5,
   "start_elevation_m": 207.04420226286584,
   "end_elevation_m": 208.22173317728695,
   "start_xy": [
    399077.5228071602,
    4504239.728403845
   ],
   "end_xy": [
    399073.22017215285,
    4504237.1813797
   ]
  },
  "max_10m": {
   "gradient_pct": 23.24796934507276,
   "start_distance_m": 112.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 117.0,
   "start_elevation_m": 198.58426596620086,
   "end_elevation_m": 200.90906290070814,
   "start_xy": [
    399110.22283321613,
    4504259.085787344
   ],
   "end_xy": [
    399101.6175632014,
    4504253.991739054
   ]
  },
  "max_20m": {
   "gradient_pct": 22.778697904456067,
   "start_distance_m": 108.0,
   "end_distance_m": 128.0,
   "midpoint_distance_m": 118.0,
   "start_elevation_m": 197.715439301527,
   "end_elevation_m": 202.2711788824182,
   "start_xy": [
    399113.66494122206,
    4504261.12340666
   ],
   "end_xy": [
    399096.4544011926,
    4504250.935310081
   ]
  },
  "max_25m": {
   "gradient_pct": 22.632505895235,
   "start_distance_m": 103.0,
   "end_distance_m": 128.0,
   "midpoint_distance_m": 115.5,
   "start_elevation_m": 196.61305240860946,
   "end_elevation_m": 202.2711788824182,
   "start_xy": [
    399117.96757622936,
    4504263.670430805
   ],
   "end_xy": [
    399096.4544011926,
    4504250.935310081
   ]
  },
  "max_50m": {
   "gradient_pct": 22.36275840541799,
   "start_distance_m": 105.0,
   "end_distance_m": 155.0,
   "midpoint_distance_m": 130.0,
   "start_elevation_m": 197.04035397457795,
   "end_elevation_m": 208.22173317728695,
   "start_xy": [
    399116.2465222264,
    4504262.651621146
   ],
   "end_xy": [
    399073.22017215285,
    4504237.1813797
   ]
  },
  "max_100m": {
   "gradient_pct": 18.64140578911781,
   "start_distance_m": 101.0,
   "end_distance_m": 201.0,
   "midpoint_distance_m": 151.0,
   "start_elevation_m": 196.27408927020656,
   "end_elevation_m": 214.91549505932437,
   "start_xy": [
    399119.68863023235,
    4504264.689240462
   ],
   "end_xy": [
    399064.14022827573,
    4504203.156204072
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.6528119788540607,
   "start_distance_m": 707.0,
   "end_distance_m": 712.0,
   "midpoint_distance_m": 709.5,
   "start_elevation_m": 263.362099650536,
   "end_elevation_m": 263.4447402494787,
   "start_xy": [
    398669.4761457003,
    4503927.819257545
   ],
   "end_xy": [
    398665.08121278,
    4503925.435025043
   ]
  },
  "min_10m": {
   "gradient_pct": 2.6677840139348064,
   "start_distance_m": 88.0,
   "end_distance_m": 98.0,
   "midpoint_distance_m": 93.0,
   "start_elevation_m": 195.81781519385,
   "end_elevation_m": 196.0845935952435,
   "start_xy": [
    399130.8420466876,
    4504271.365155251
   ],
   "end_xy": [
    399122.2702112367,
    4504266.217454949
   ]
  },
  "min_20m": {
   "gradient_pct": 4.169842146154394,
   "start_distance_m": 692.0,
   "end_distance_m": 712.0,
   "midpoint_distance_m": 702.0,
   "start_elevation_m": 262.6107718202478,
   "end_elevation_m": 263.4447402494787,
   "start_xy": [
    398682.66094446124,
    4503934.971955053
   ],
   "end_xy": [
    398665.08121278,
    4503925.435025043
   ]
  },
  "min_25m": {
   "gradient_pct": 4.252088113686796,
   "start_distance_m": 687.0,
   "end_distance_m": 712.0,
   "midpoint_distance_m": 699.5,
   "start_elevation_m": 262.381718221057,
   "end_elevation_m": 263.4447402494787,
   "start_xy": [
    398687.0558773816,
    4503937.356187555
   ],
   "end_xy": [
    398665.08121278,
    4503925.435025043
   ]
  },
  "min_50m": {
   "gradient_pct": 4.6107157111118795,
   "start_distance_m": 662.0,
   "end_distance_m": 712.0,
   "midpoint_distance_m": 687.0,
   "start_elevation_m": 261.13938239392274,
   "end_elevation_m": 263.4447402494787,
   "start_xy": [
    398708.9914492311,
    4503949.348440297
   ],
   "end_xy": [
    398665.08121278,
    4503925.435025043
   ]
  },
  "min_100m": {
   "gradient_pct": 4.76643977446065,
   "start_distance_m": 612.0,
   "end_distance_m": 712.0,
   "midpoint_distance_m": 662.0,
   "start_elevation_m": 258.67830047501803,
   "end_elevation_m": 263.4447402494787,
   "start_xy": [
    398752.2084554814,
    4503974.459613849
   ],
   "end_xy": [
    398665.08121278,
    4503925.435025043
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.1545658374269,
   "start_distance_m": 119.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 120.0,
   "start_elevation_m": 200.19087668175933,
   "end_elevation_m": 200.69396799850787,
   "start_xy": [
    399104.19914420584,
    4504255.519953541
   ],
   "end_xy": [
    399102.4780902029,
    4504254.501143884
   ]
  },
  "max_3m": {
   "gradient_pct": 24.609747563667383,
   "start_distance_m": 118.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 119.5,
   "start_elevation_m": 199.95567557159785,
   "end_elevation_m": 200.69396799850787,
   "start_xy": [
    399105.05967120733,
    4504256.02935837
   ],
   "end_xy": [
    399102.4780902029,
    4504254.501143884
   ]
  }
 },
 "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_start_earlier"
  ]
 },
 "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/pa/USGS_1M_18_x39y451_PA_3_County_South_Central_2018_D18.tif"
  ],
  "calculated_at": "2026-09-07T14:08:41+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/pennsylvania-2026-09-07-batch-band4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "pa-run4-260907",
  "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, PA_3_County_South_Central_2018_D18 (collected 2018)",
  "elevation_tile_ids": [
   "x39y451"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_3_County_South_Central_2018_D18: HTTP Error 404: Not Found",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Pottsville",
  "county": "Pennsylvania"
 }
}