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Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 860 ft MSL · USGS ground 868 ft · Δ -8 ft
Structure cross-check (Overture / OSM)
Ground-level — no building footprint at the coordinate
Cross-source consensus
Corroborated — terrain and structure agree (2/2 sources)
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
INFEASIBLE WITHOUT REMEDIATIONConversion feasibility · four readings, one line each
Obstruction screen
Severe
High obstacle within 0.5 nm conflicts with the expanded footprint and the 8:1 approach surface.
Geometry
Requires 60 feet of expansion
Recorded pad side 40 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
Infeasible without remediation
A high obstacle conflicts with the expanded footprint. Remediation or a different site.
The recorded pad is 60 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
40 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
0IL6
AIX ID
aix:hp:DYECK2V6
Lat / Lng
41.96066, -88.72177
Elevation
860 ft MSL
Pad dimensions
40 × 40 ft
Surface type
CONC
Surface condition
GOOD
Activation date
1975/02
Last owner update
2023/12/27
FAA OEAAA airspace determinations2
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2010-04-20
NRAARCH-DeterminedASN 2010-AGL-972-NRA2010-11-01
Other · 0 ft AGL — 7480-1 to Close Heliport H2. Heliport H1 will remain as the active heliport. The Lat/Long coordinates are for the remaining active heliport.
NRAARCH-DeterminedASN 2006-AGL-599-NRA2007-03-16
Heliport · 870 ft AGL — Retain existing heliport and create a new primary use heliport (H2) approximately 185' southeast of existing heliport for use with new hospital campus.\r\nHospital campus is adjacent to residential and business district.
Blueprint
The record vs. what we measured
67/100
DATA INTEGRITY
eVTOL footprint
The 40 ft pad is 60 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation860 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions40 ft side (filed)40 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.
NORTHWESTERN MEMORIAL HEALTHCARE, DE KALB, IL (FAA 0IL6). AirIndex facility record aix:hp:DYECK2V6. Verifiable at https://www.airindex.io/verify/aix:hp:DYECK2V6.