{
  "name": "Okertalstraße",
  "slug": "okertal-b498",
  "url": "https://www.bestdrivingroads.com/roads/okertal-b498/",
  "summary": "The Harz's twistiest valley road, cut through a 300 m rock gorge.",
  "roadNumbers": [
    "B 498"
  ],
  "location": {
    "country": "Germany",
    "region": "Harz, Lower Saxony",
    "start": {
      "name": "Oker, Goslar",
      "lat": 51.902944,
      "lon": 10.481306
    },
    "end": {
      "name": "Altenau",
      "lat": 51.792128,
      "lon": 10.442081
    }
  },
  "measurements": {
    "lengthMiles": 10.2,
    "lengthKm": 16.4,
    "driveMinutes": 24,
    "corners": 7,
    "hairpins": 0,
    "maxGradientPercent": 7,
    "summitMetres": 536,
    "difficulty": "moderate",
    "tightnessOutOf10": 6
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "summer",
      "autumn"
    ]
  },
  "conditions": {},
  "hazards": [
    "Rockfall in the gorge, with short-notice closures for slope stabilisation",
    "Heavy weekend motorcycle traffic and a biker meeting point at the dam car park",
    "Temporary traffic lights possible during rock-stabilisation works"
  ],
  "scenery": [
    "gorge",
    "forest",
    "lakes"
  ],
  "pointsOfInterest": [
    "Romkerhaller Wasserfall",
    "Okertalsperre dam wall"
  ],
  "geometry": {
    "gpx": "https://www.bestdrivingroads.com/roads/okertal-b498/route.gpx",
    "pointCount": 151
  },
  "attribution": {
    "source": "Routes - bestdrivingroads.com",
    "citation": "Cite with a link to the road page. Stats are measured from the mapped line, not copied from other lists.",
    "roadGeometry": "(c) OpenStreetMap contributors, ODbL",
    "terms": "Facts are free to cite with attribution; bulk reproduction of the catalogue requires permission (simon@keane.studio)."
  },
  "updated": "2026-07-12"
}