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Owner self-reported — never independently field-inspected
Location confidence
⚠ Location-suspect — recorded coordinates may be mislocated
Terrain cross-check (USGS 3DEP)
FAA 420 ft MSL · USGS ground 396 ft · Δ 24 ft
Structure cross-check (Overture / OSM)
Ground-level — no building footprint at the coordinate
Cross-source consensus
Single independent source — no corroboration available
Cross-checked against independent public data — USGS 3DEP terrain, Overture/OSM building footprints, the federal hospital registry, and measured dimensions. The State of the U.S. Heliport Record →
eVTOL readiness
CONDITIONALConversion feasibility · four readings, one line each
Obstruction screen
Clear
No obstructions within 0.5 nm on the FAA obstacle file.
Geometry
Meets the FATO footprint
Recorded pad side 160 ft against a 100 ft eVTOL FATO.
Structural FATO
Unverified
The full 100 × 100 ft FATO must be load-bearing. The FAA does not record structural capacity, so no record can confirm it.
Overall
Conditional
Obstruction screen passed. Geometry and structural capacity remain open. Site validation required.
This pad already covers the eVTOL landing footprint as it stands.
recorded pad eVTOL FATO
Recorded pad (limiting side)
160 ft
eVTOL FATO required
100 ft
FAA EB-105 vertiport pattern — 2× a ~50 ft eVTOL controlling dimension, plus a 125 ft safety-area side.
Load-bearing FATO
100 × 100 ft must be structural
No heliport precedent — typically the binding gate for rooftop and hospital pads.
Measured against FAA pad geometry and federal FATO sizing (EB-105). The obstruction screen is the only reading the engine verdict rests on; geometry and structural capacity are stated separately and never folded into it. A dimensional pre-screen — site-level validation required, and independent of the underwriting risk score.
NFPA 418 adoption status not yet assessed for this jurisdiction.
FAA facility data
FAA LID
WA47
AIX ID
aix:hp:DFYYBEJ9
Lat / Lng
48.59146, -122.25920
Elevation
420 ft MSL
Pad dimensions
160 × 160 ft
Surface type
DECK
Activation date
2016/01
FAA OEAAA airspace determinations1
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2015-05-27
NRAARCH-DeterminedASN 2015-ANM-734-NRA2015-07-14
Heliport · 0 ft AGL — 7480 for the establishment of a private use heliport.
Safety history (NTSB)1
Accident history
1 NTSB helicopter event within 3 nm since 2010 (1 accident); most recent 2013-10-18.
ACCIDENT0.1 nm2013-10-18
ROBINSON R44 - II · Sedro Woolley, WA — NTSB CAROL
NTSB helicopter accidents & incidents geocoded within 3 nm of this pad and attributed to the nearest facility — proximity, not a determination that an event occurred at this site. Source: NTSB aviation accident database.
Blueprint
The record vs. what we measured
72/100
DATA INTEGRITY
eVTOL footprint
Footprint assessment available.
SIGNALFEDERAL RECORDMEASURED
Surface elevation420 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions160 ft side (filed)160 ft side · measured
Coordinate integrityas filed⚠ location-suspect
Independent inspectionowner self-reportednone on record
✓Federal record
→
✓Cross-checkedUSGS · Overture · dimensions
→
3Physically verifiedGround Truth capture
Obstructions, exact FATO geometry, surface condition, and downwash exposure require a physical Ground Truth capture — not shown above as measured. A field verification completes the record and writes the measured truth to this facility’s authority.
This page is the public data-integrity record. The full RiskIndex assessment — Q1–Q5 compliance, dimensional / FATO analysis, an underwriting-grade risk score, peer benchmark, and a sealed Site Intelligence Report — is available on request.