Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 131 ft MSL · USGS ground 134 ft · Δ -3 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 35 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
65 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
Clear — no obstructions within 0.5 nm on the FAA obstacle file
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
70TS
AIX ID
aix:hp:9Q88NXFQ
Lat / Lng
29.78669, -95.78408
Elevation
131 ft MSL
Pad dimensions
65 × 65 ft
Surface type
CONC
Surface condition
EXCELLENT
Activation date
2009/07
Last owner update
2026/04/23
FAA OEAAA airspace determinations1
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2008-04-30
NRAARCH-DeterminedASN 2008-ASW-424-NRA2009-03-12
Heliport · 0 ft AGL — Establish private use hospital heliport.
Blueprint
The record vs. what we measured
67/100
DATA INTEGRITY
eVTOL footprint
The 65 ft pad is 35 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation131 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions65 ft side (filed)65 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.
MEML HERMANN KATY HOSPITAL, KATY, TX (FAA 70TS). AirIndex facility record aix:hp:9Q88NXFQ. Verifiable at https://www.airindex.io/verify/aix:hp:9Q88NXFQ.