Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 54 ft MSL · USGS ground 53 ft · Δ 1 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 64 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
36 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
11XS
AIX ID
aix:hp:AQZA08NT
Lat / Lng
29.59705, -95.36942
Elevation
54 ft MSL
Pad dimensions
36 × 36 ft
Surface type
CONC
Surface condition
GOOD
Activation date
2018/09
Last owner update
2023/09/01
FAA OEAAA airspace determinations1
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2017-11-13
NRAARCH-DeterminedASN 2017-ASW-5688-NRA2018-01-12
Heliport · 1 ft AGL — LAP ASN # 2017-CSA-23-LAP
Blueprint
The record vs. what we measured
67/100
DATA INTEGRITY
eVTOL footprint
The 36 ft pad is 64 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation54 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions36 ft side (filed)36 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.
SPEED SHORE COMPANY HEADQUARTERS, PEARLAND, TX (FAA 11XS). AirIndex facility record aix:hp:AQZA08NT. Verifiable at https://www.airindex.io/verify/aix:hp:AQZA08NT.