{
 "ocl_version": "0.1.0",
 "name": "Wood Street",
 "slug": "wood-street",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.530557944837938,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 104.0,
   "end_distance_m": 106.0,
   "start_elevation_m": 306.92551643927334,
   "end_elevation_m": 307.3961275981701,
   "min_gradient_pct": -14.402543229726916
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.327749359062484,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 103.0,
   "end_distance_m": 106.0,
   "start_elevation_m": 306.6962951173982,
   "end_elevation_m": 307.3961275981701,
   "min_gradient_pct": -14.175042775807848
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.057841370100505,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 104.0,
   "end_distance_m": 109.0,
   "start_elevation_m": 306.92551643927334,
   "end_elevation_m": 308.07840850777836,
   "min_gradient_pct": -14.051918843624662
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.716567840750486,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 99.0,
   "end_distance_m": 109.0,
   "start_elevation_m": 305.8067517237033,
   "end_elevation_m": 308.07840850777836,
   "min_gradient_pct": -13.622291481485718
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.588355393693007,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 101.0,
   "end_distance_m": 121.0,
   "start_elevation_m": 306.25065726900925,
   "end_elevation_m": 310.76832834774785,
   "min_gradient_pct": -12.6725772705052
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.551537771329322,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 97.0,
   "end_distance_m": 122.0,
   "start_elevation_m": 305.3556082158343,
   "end_elevation_m": 310.99349265866664,
   "min_gradient_pct": -12.307045486631296
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.712161407695703,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 89.0,
   "end_distance_m": 139.0,
   "start_elevation_m": 303.6696984033445,
   "end_elevation_m": 314.52577910719236,
   "min_gradient_pct": -10.67159544182141
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.57291774946867,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 45.0,
   "end_distance_m": 145.0,
   "start_elevation_m": 295.014118451657,
   "end_elevation_m": 315.58703620112567,
   "min_gradient_pct": -5.975930375604719
  }
 ],
 "shape": {
  "ascent_concentration": 0.509,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 122.0,
  "shape_class": "stepped"
 },
 "length_m": 567.6601300624709,
 "start_elevation_m": 292.3050991623,
 "end_elevation_m": 334.12123115552055,
 "endpoint_gain_m": 41.81613199322055,
 "overall_gradient_pct": 7.366402848940385,
 "accumulated_ascent_m": 48.591054657246104,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.057841370100505,
   "start_distance_m": 104.0,
   "end_distance_m": 109.0,
   "midpoint_distance_m": 106.5,
   "start_elevation_m": 306.92551643927334,
   "end_elevation_m": 308.07840850777836,
   "start_xy": [
    583613.0729564838,
    4441081.997797655
   ],
   "end_xy": [
    583609.4394420807,
    4441085.432556874
   ]
  },
  "max_10m": {
   "gradient_pct": 22.716567840750486,
   "start_distance_m": 99.0,
   "end_distance_m": 109.0,
   "midpoint_distance_m": 104.0,
   "start_elevation_m": 305.8067517237033,
   "end_elevation_m": 308.07840850777836,
   "start_xy": [
    583616.7061078957,
    4441078.562654574
   ],
   "end_xy": [
    583609.4394420807,
    4441085.432556874
   ]
  },
  "max_20m": {
   "gradient_pct": 22.588355393693007,
   "start_distance_m": 101.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 111.0,
   "start_elevation_m": 306.25065726900925,
   "end_elevation_m": 310.76832834774785,
   "start_xy": [
    583615.252941712,
    4441079.936811615
   ],
   "end_xy": [
    583600.7188932457,
    4441093.6758574145
   ]
  },
  "max_25m": {
   "gradient_pct": 22.551537771329322,
   "start_distance_m": 97.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 109.5,
   "start_elevation_m": 305.3556082158343,
   "end_elevation_m": 310.99349265866664,
   "start_xy": [
    583618.1593830318,
    4441077.188612752
   ],
   "end_xy": [
    583599.992074201,
    4441094.362686415
   ]
  },
  "max_50m": {
   "gradient_pct": 21.712161407695703,
   "start_distance_m": 89.0,
   "end_distance_m": 139.0,
   "midpoint_distance_m": 114.0,
   "start_elevation_m": 303.6696984033445,
   "end_elevation_m": 314.52577910719236,
   "start_xy": [
    583623.9738528333,
    4441071.6938956035
   ],
   "end_xy": [
    583585.1855047254,
    4441100.509824756
   ]
  },
  "max_100m": {
   "gradient_pct": 20.57291774946867,
   "start_distance_m": 45.0,
   "end_distance_m": 145.0,
   "midpoint_distance_m": 95.0,
   "start_elevation_m": 295.014118451657,
   "end_elevation_m": 315.58703620112567,
   "start_xy": [
    583655.9483896706,
    4441041.467606469
   ],
   "end_xy": [
    583581.0088362847,
    4441096.681792658
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.051918843624662,
   "start_distance_m": 345.0,
   "end_distance_m": 350.0,
   "midpoint_distance_m": 347.5,
   "start_elevation_m": 326.0611236803169,
   "end_elevation_m": 325.35852773813565,
   "start_xy": [
    583448.9723512906,
    4441021.957320372
   ],
   "end_xy": [
    583443.9775652963,
    4441021.73242015
   ]
  },
  "min_10m": {
   "gradient_pct": -13.622291481485718,
   "start_distance_m": 342.0,
   "end_distance_m": 352.0,
   "midpoint_distance_m": 347.0,
   "start_elevation_m": 326.4580037822499,
   "end_elevation_m": 325.0957746341013,
   "start_xy": [
    583451.9698684214,
    4441022.079341078
   ],
   "end_xy": [
    583441.9820134869,
    4441021.59910812
   ]
  },
  "min_20m": {
   "gradient_pct": -12.6725772705052,
   "start_distance_m": 339.0,
   "end_distance_m": 359.0,
   "midpoint_distance_m": 349.0,
   "start_elevation_m": 326.8102151035042,
   "end_elevation_m": 324.2756996494032,
   "start_xy": [
    583454.9674010325,
    4441022.200980422
   ],
   "end_xy": [
    583434.9978786039,
    4441021.128099064
   ]
  },
  "min_25m": {
   "gradient_pct": -12.307045486631296,
   "start_distance_m": 337.0,
   "end_distance_m": 362.0,
   "midpoint_distance_m": 349.5,
   "start_elevation_m": 327.0235821775823,
   "end_elevation_m": 323.94682080592446,
   "start_xy": [
    583456.965745438,
    4441022.282336154
   ],
   "end_xy": [
    583432.0046208411,
    4441020.92708176
   ]
  },
  "min_50m": {
   "gradient_pct": -10.67159544182141,
   "start_distance_m": 334.0,
   "end_distance_m": 384.0,
   "midpoint_distance_m": 359.0,
   "start_elevation_m": 327.2778009460507,
   "end_elevation_m": 321.94200322514,
   "start_xy": [
    583459.9632642091,
    4441022.404316884
   ],
   "end_xy": [
    583410.449382812,
    4441023.441632424
   ]
  },
  "min_100m": {
   "gradient_pct": -5.975930375604719,
   "start_distance_m": 308.0,
   "end_distance_m": 408.0,
   "midpoint_distance_m": 358.0,
   "start_elevation_m": 326.95725327160244,
   "end_elevation_m": 320.9813228959977,
   "start_xy": [
    583485.9523963768,
    4441022.75475764
   ],
   "end_xy": [
    583388.2761816665,
    4441032.341908041
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.530557944837938,
   "start_distance_m": 104.0,
   "end_distance_m": 106.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 306.92551643927334,
   "end_elevation_m": 307.3961275981701,
   "start_xy": [
    583613.0729564838,
    4441081.997797655
   ],
   "end_xy": [
    583611.6194273186,
    4441083.371570843
   ]
  },
  "max_3m": {
   "gradient_pct": 23.327749359062484,
   "start_distance_m": 103.0,
   "end_distance_m": 106.0,
   "midpoint_distance_m": 104.5,
   "start_elevation_m": 306.6962951173982,
   "end_elevation_m": 307.3961275981701,
   "start_xy": [
    583613.799412556,
    4441081.310584812
   ],
   "end_xy": [
    583611.6194273186,
    4441083.371570843
   ]
  }
 },
 "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": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "8f4becd2ed8ab26772f5cd961ca7d1d0c2823252",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:8c94015b54267da4",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.1",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.4",
   "proj": "9.8.1",
   "run_id": "remeasure-valley-260921-us",
   "road_pbf": "batch-usa-pa-west-chunk000.pbf",
   "region_key": "usa-pa-west",
   "crs": "EPSG:26917",
   "elevation_provider_key": "usa3dep",
   "authority": "usa-inventory",
   "registry_pbf": "pennsylvania-2026-09-07.osm.pbf",
   "tile_index_snapshot": "sha256:fa1823f8d28112c4"
  },
  "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa-west/USGS_1M_17_x58y445_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-22T00:20:13+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/valley-260921/us/batch-usa-pa-west-chunk000.pbf",
  "osm_snapshot": "",
  "run_id": "remeasure-valley-260921-us",
  "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_WesternPA_2019_D20 (collected 2020)",
  "elevation_tile_ids": [
   "x58y445"
  ],
  "route_base_cut_m": 500.0,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_WesternPA_2019_D20: HTTP Error 404: Not Found",
  "structure_own_ways": 2,
  "structure_own_ways_source": "map-matched to the road network: the entry carried no way list, so the ways the route runs along were found by geometry (ukclimb.batch.own_ways_by_geometry)",
  "prior_doc": {
   "slug": "wood-street",
   "calculated_at": "2026-09-08T15:47:18+00:00",
   "code_git_sha": null,
   "analysis_version": "0.1.0",
   "run_id": "retro-box-260908",
   "path": "/root/uk-climbs/output/valley-260921/us/priors/wood-street/wood-street.json",
   "spans": 0,
   "sources": []
  },
  "carriageway": {
   "stations": 29,
   "stations_resolved": 29,
   "width_median_m": 5.25,
   "width_p10_m": 3.85,
   "width_min_m": 2.25,
   "width_max_m": 10.25,
   "bounded_share": 0.379,
   "unbounded_share": 0.621,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.75,
   "window_m": [
    97.0,
    122.0
   ],
   "width_at_max25_m": 4.5,
   "window_stations": 7,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "status": "unavailable \u2014 no DSM raster (surface model absent or point-cloud only, which cannot serve off-line samples)"
   }
  },
  "remeasured": {
   "on": "2026-09-22",
   "why": "valley-crossing extent re-measure 2026-09-22: low-to-summit (500.0 m -> 1068.0 m)",
   "published_max25_pct": 22.56,
   "max25_pct": 22.55
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Bentleyville",
  "county": "Pennsylvania"
 },
 "review_flags": [
  {
   "kind": "possible-bridge-or-hollow",
   "span_m": [
    405.0,
    586.0
   ],
   "status": "pending-human-review",
   "noted": "2026-09-21",
   "figure_adjusted": false
  }
 ]
}