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Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 51.3 ft MSL · USGS ground 56 ft · Δ -5 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 56 feet of expansion
Recorded pad side 44 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 56 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
44 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.
IBC references NFPA 418 for rooftop facilities. Standalone fire code reference not confirmed.
FAA facility data
FAA LID
XS74
AIX ID
aix:hp:M7SNQZXE
Lat / Lng
29.00476, -95.98187
Elevation
51.3 ft MSL
Pad dimensions
44 × 44 ft
Surface type
CONC
Activation date
2018/04
Last owner update
2021/09/22
FAA OEAAA airspace determinations1
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2017-01-24
NRAARCH-DeterminedASN 2017-ASW-354-NRA2017-04-24
Heliport · 0 ft AGL — New Claytime heliport in Bay City
Safety history (NTSB)1
Accident history
1 NTSB helicopter event within 3 nm since 2010 (1 accident); most recent 2024-07-16.
1 with serious injury
ACCIDENT1.0 nm2024-07-16
MCDONNELL DOUGLAS HELICOPTER 600N · Eagle Lake, TX — NTSB CAROL
NTSB helicopter accidents & incidents geocoded within 3 nm of this pad and attributed to the nearest facility — proximity, not a determination that an event occurred at this site. Source: NTSB aviation accident database.
Blueprint
The record vs. what we measured
61/100
DATA INTEGRITY
eVTOL footprint
The 44 ft pad is 56 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation51.3 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions44 ft side (filed)44 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.