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Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 97 ft MSL · USGS ground 86 ft · Δ 11 ft
Structure cross-check (Overture / OSM)
On a building footprint — height not tagged in the source
Building height ≈ 6 ft — measured independently of the FAA record
Cross-source consensus
⚠ Sources conflict — pad is on a building, but FAA elevation reads ground level
Stale-low FAA elevation (the 6FD8 class) — never updated for the rooftop pad. Treat the recorded elevation as unreliable.
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
Requires 80 feet of expansion
Recorded pad side 20 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.
The recorded pad is 80 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
20 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
87MA
AIX ID
aix:hp:3P6ZTYD3
Lat / Lng
42.53341, -71.13417
Elevation
97 ft MSL
Pad dimensions
24 × 20 ft
Surface type
DECK
Activation date
2023/09
Last owner update
2026/03/04
FAA OEAAA airspace determinations3
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2023-08-11
NRAARCH-DeterminedASN 2023-ANE-1368-NRA2023-09-20
Form 7480 · 17 ft AGL — LAP ASN # 2023-ESA-149-LAP
NRAARCH-DeterminedASN 2007-ANE-2-NRA2008-05-13
Heliport · 0 ft AGL — Establishment of a new heliport. \r\nFATO: 20' x 24'\r\nTLOF: 36' x 36'\r\nIngress/Egress: 340 and 360\r\nSurface: Steel Plate
NRAARCH-DeterminedASN 2004-ANE-37-NRA2005-12-27
Heliport · 0 ft AGL — private use heliport FATO 300'X300' TLOF 24'X20' Ingress/Egress 310 steel.\r\n\r\nCase Terminated.
Blueprint
The record vs. what we measured
75/100
DATA INTEGRITY
eVTOL footprint
The 20 ft pad is 80 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation97 ft92 ft · USGS+structure
Structurenot on recordOn a building
Pad dimensions20 ft side (filed)20 ft side · measured
Coordinate integrityas filedterrain cross-checked
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.