Mapped NVE hazard-zone matches at the address point

hazard_zones14 fields9 of these fields open in the demo

Source: NVE flood/quick-clay/landslide zones
Geography: The address point
Reported stale after: 120 days
Access: Requires an API key granted this section
Contract version: 1
In packages: hazard_screen

What this does not say

Quoted verbatim from the section’s warnings field, exactly as the API returns it. They are not translated: a translation would show something other than what your response actually contains.

The canonical hazard answer: hazards, safety_and_regulations and ground_integrity answer from the same zones and the same rule. Point-in-polygon against locally ingested NVE zones. True reports a match in a mapped zone. False reports no match, and only where the address's kommune is in the layer's coverage (/coverage) — that proves we hold zones there, not complete municipal surveying. Outside coverage the answer is null and the matching *_status is unknown_not_covered. Missing matches never establish absence of hazard. Null must never be read as clearance. Source freshness is unverified unless a retrieval timestamp is supplied.
flood_min_return_period is the lowest present-climate recurrence whose zone covers the point (e.g. 20 = inside the 20-year flood zone); flood_climate_adjusted is true when the point lies in NVE's climate-adjusted (year-2100) zone, so in_flood_zone true with a null flood_min_return_period means the 2100 zone only. Quick clay reports the most severe NVE grade at the point, whether that zone is the release area (where a slide starts) or the run-out area (where the masses end up), and NVE's risk class 1-5. landslide_hazard_type 'combined' is NVE's joint zone for every slide type in steep terrain. Not an engineering assessment.

Fields

10 of 14 fields are value fields — the ones that decide whether a record actually says anything. The rest are context: identifiers, codes and timestamps. Fields marked “open” return values to anonymous callers; the rest require a key.

Field	Type	Role	Demo
in_flood_zone	boolean \| null	value	open
flood_status	string \| null	value	—
flood_min_return_period	integer \| null (år)	value	open
flood_climate_adjusted	boolean \| null	context	open
in_quick_clay_zone	boolean \| null	value	open
quick_clay_status	string \| null	value	—
quick_clay_hazard_level	string \| null	value	open
quick_clay_zone_type	string \| null	value	—
quick_clay_consequence_class	string \| null	context	open
quick_clay_risk_class	integer \| null	context	—
in_landslide_zone	boolean \| null	value	open
landslide_status	string \| null	value	—
landslide_hazard_type	string \| null	value	open
landslide_safety_class	string \| null	context	open

Fetch this section

curl -H "X-API-Key: $APPROACH_API_KEY" \
  "https://api.approach.no/api/v1/addresses/285717643?include=hazard_zones"

# paginated, one section at a time
curl -H "X-API-Key: $APPROACH_API_KEY" \
  "https://api.approach.no/api/v1/addresses/285717643/sections/hazard_zones?limit=25"

Try it now

This is a real call against the public demo, from here. What appears below is what the API returned — not a sample.