Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 166 ft MSL · USGS ground 181 ft · Δ -14 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 →
The recorded pad is 50 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
50 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.
Obstruction clearance
High obstacle within 0.5 nm — conflicts with the expanded footprint and 8:1 approach
Measured against FAA pad geometry and federal FATO sizing (EB-105). A dimensional pre-screen — site-level validation required, and independent of the underwriting risk score.
IBC references NFPA 418 for rooftop facilities. Standalone fire code reference not confirmed.
FAA facility data
FAA LID
TS52
AIX ID
aix:hp:9J19ABBZ
Lat / Lng
30.08675, -95.62143
Elevation
166 ft MSL
Pad dimensions
50 × 50 ft
Surface type
CONC
Activation date
1983/12
Last owner update
2011/11/29
FAA OEAAA airspace determinations2
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2001-06-29
NRAARCH-DeterminedASN 2001-ASW-5569-NRA2001-08-24
Other · 0 ft AGL — Relocate/Construct existing helipad 680 ft. East from existing site. New helipad shall be 100 ft. X 100 ft.(Concrete Surface). Existing helipad shall be deactivated by Aeronautical Study No.01-ASW-5572-NRA Deactivation of Private-Use Helipad Tomball Texas.
NRAARCH-DeterminedASN 2001-ASW-5572-NRA2001-07-19
Other · 0 ft AGL — Deactivation of existing helipad. Existing helipad will be relocated/constructed 680 ft. east of existing site. Reference Aeronautical Study No. 01-ASW-5569-NRA Relocate/Construct Private-Use Helipad Tomball Texas.
Blueprint
The record vs. what we measured
73/100
DATA INTEGRITY
eVTOL footprint
The 50 ft pad is 50 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation166 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions50 ft side (filed)50 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.
TOMBALL RGNL MEDICAL CENTER, TOMBALL, TX (FAA TS52). AirIndex facility record aix:hp:9J19ABBZ. Verifiable at https://www.airindex.io/verify/aix:hp:9J19ABBZ.