AirIndex Research · FAA LID 49WI

WATERTOWN MEDICAL CENTER

WATERTOWN, WI. Operational · Private use.

OperationalPrivate usePrivate

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Data integrity

73/100
CorroboratedData Integrity Index
Independent inspection
Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 886 ft MSL · USGS ground 875 ft · Δ 11 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

UNVERIFIEDConversion feasibility · four readings, one line each
Obstruction screen
No data
No FAA obstacle data on file for this state. Clearance unverified.
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
Unverified
No obstruction data on file. The dimensional gap applies; clearance is unverified.
100 ft · eVTOL FATO40 ft
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.

FAA compliance

Q1 · FAA registrationPASS
Active FAA NASR 5010 record.
Q2 · Airspace determinationON_FILE
OE3A archive: ASN 2019-AGL-10082-NRA determined 2020-06-26
Q3 · State enforcementUNKNOWN
State enforcement posture not yet assessed.
Q4 · NFPA 418UNKNOWN
NFPA 418 adoption status not yet assessed for this jurisdiction.

FAA facility data

FAA LID
49WI
AIX ID
aix:hp:585T6GM0
Lat / Lng
43.19993, -88.69559
Elevation
886 ft MSL
Pad dimensions
40 × 42 ft
Surface type
CONC
Activation date
2020/09

FAA OEAAA airspace determinations2

Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2019-10-07
  • NRAARCH-DeterminedASN 2019-AGL-10082-NRA
    2020-06-26
    Form 7480 · 0 ft AGL — LAP ASN # 2019-CSA-9-LAP\r\n\r\nThis is an existing operational heliport that for whatever reason was never issued a 5010‐2 or LOC ID.\r\n\r\nHickok & Associates Inc. is an FAA approved 3rd party non‐fed developer of instrument procedures and\r\nhas been engaged for the development of a Special Copter Point‐in‐Space instrument procedure to\r\nservice this hospital heliport.\r\nHickok & Associates also holds letters of authorizations issued by FAA Flight Standards as Procedure\r\nEvaluation Pilot (PEP) and; is authorized to perform the Evaluation and Surveillance of Heliports\r\ntypically performed by an FAA Flight Standards Operations aviation safety inspector (ASI) as part of the\r\nFAA Form 7480‐1 submission/process. (Ref. see FAAO 8900.1 Chapter 3 Section 8‐212.B.) Hickok &\r\nAssociates has performed and completed the heliport evaluation/7480‐1 evaluation associated with this\r\nsubmission. FAA may choose to send an ASI but it is not necessary per the reference herein.
  • NRAARCH-DeterminedASN 2013-AGL-7049-NRA
    2015-08-19
    Heliport · 0 ft AGL — The attached study is for the establishment of a private hospital heliport with a 42' by 42' concrete touchdown and lift-off area located in Watertown Wisconsin.
Blueprint
The record vs. what we measured
73/100
DATA INTEGRITY
eVTOL footprint
FATO 100 ft reqHTLOF 40 ft

The 40 ft pad is 60 ft short of the 100 ft an eVTOL FATO requires (measured).

SIGNALFEDERAL RECORDMEASURED
Surface elevation886 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.
Request Ground Truth verification

Full risk assessment

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.

Request the full assessment

Building autonomous systems? See the machine-verified feed

Provenance FAA NASR 5010 · pad dims APT cycle 2026/03/19 · USGS 3DEP terrain · Overture structure · eVTOL screen conversion-feasibility-1.1 · AIX-ID aix:hp:585T6GM0 · Methodology →
Cite this facility

WATERTOWN MEDICAL CENTER, WATERTOWN, WI (FAA 49WI). AirIndex facility record aix:hp:585T6GM0. Verifiable at https://www.airindex.io/verify/aix:hp:585T6GM0.

Verify this record →

AIX-IDs are free to cite and reference; the registry is the source of record. The verify link resolves this record against the audit chain.

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