Guyed tower 1015420 — Lyman, IA
ConstructedFCC Antenna Structure Registration 1015420 — guyed tower near Lyman, Iowa. Tower or mast held upright by tensioned guy wires anchored in the ground around its base.
At a glance
FCC Antenna Structure Registration 1015420 is a 85 m (280 ft) guyed tower near Lyman, Cass County, Iowa. Its registration status is constructed, with construction recorded on Sep 21, 1994. It is registered to GRISWOLD COOPERATIVE TELEPHONE COMPANY.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1015420 |
| Unique system identifier | 100143 |
| Status | Constructed (C) |
| Structure type | Guyed tower (GTOWER) |
| Date constructed | Sep 21, 1994 |
| Registration issued | Oct 30, 2023 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2023-ACE-7029-OE |
| FAA circular | 70/7460-1M |
| Painting / lighting spec | 4, 8, 15 |
| Marking / lighting code | FAA Style E (7) |
The painting/lighting specification is copied as filed: the FAA marking and lighting chapters and paragraphs cited in the ASR record. The marking/lighting code is decoded using the FCC registration form's code list.
Registered owner
GRISWOLD COOPERATIVE TELEPHONE COMPANY
Griswold, IA · FRN 0003776069
Location
- Address
- INT HWY 71 AND HWY 92
- City
- Lyman
- State
- Iowa
- ZIP
- 51535
- County
- Cass County
- County FIPS
- 19029
- Coordinates
- 41.22967, -94.98594
Within ~40 km
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How tall is structure 1015420 compared with others?
At 85 m, structure 1015420 is about 10% above the 78 m average across the 52 structures registered in Cass County. It is roughly in line with the Iowa average of 79 m across 4,130 registrations. Among the 20,277 registrations nationwide filed under the same structure-type code (GTOWER), the average overall height is 107 m, so this one is about 20% below that figure.
The supporting structure itself measures 81 m; antennas and other appurtenances on top bring the overall height above ground to 85 m. The site's filed ground elevation is 391 m, which puts the top of the structure 477 m above mean sea level.
Where is structure 1015420, and what is registered around it?
The registration places the structure near Lyman in Cass County, Iowa, at coordinates 41.22967, -94.98594, with the site address filed as "INT HWY 71 AND HWY 92". Cass County has 52 FCC-registered antenna structures, the 20th-largest count among the 99 Iowa counties with registrations, and 36 of them are marked constructed. Iowa as a whole has 4,130 registrations, the 20th-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is Hancock, IA · 1026014, a guyed tower at 459 m (constructed).
What does the status "Constructed" mean?
Constructed means the owner has notified the FCC that construction is complete, so the registry treats the structure as standing. The FCC issued registration 1015420 on Oct 30, 2023. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 3,267 in Iowa.
Who owns antenna structure 1015420?
The FCC record lists GRISWOLD COOPERATIVE TELEPHONE COMPANY of Griswold, IA as the registered owner, under FCC Registration Number 0003776069.
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2023-ACE-7029-OE and FAA Advisory Circular 70/7460-1M, the FAA review of the structure's effect on air navigation. Its marking and lighting code, 7, is listed on the FCC registration form as "FAA Style E". The painting and lighting specification on file cites FAA chapters 4, 8, 15.
Frequently asked questions
How tall is antenna structure 1015420?
Its registered overall height above ground is 85 m (280 ft), and 477 m (1,564 ft) above mean sea level.
Who owns tower 1015420?
The registered owner is GRISWOLD COOPERATIVE TELEPHONE COMPANY.
Where is antenna structure 1015420?
It is located near Lyman, Cass County, Iowa at INT HWY 71 AND HWY 92 (41.22967, -94.98594). Its status is constructed; it was constructed on Sep 21, 1994.
What type of structure is 1015420?
It is filed with the FCC under structure-type code GTOWER, which decodes to "Guyed tower". Tower or mast held upright by tensioned guy wires anchored in the ground around its base. 20,277 registrations nationwide use the same code.
How many antenna structures are registered in Cass County, IA?
Cass County has 52 FCC-registered antenna structures, 36 of them constructed — the 20th-largest count among 99 counties in Iowa.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1015420, weekly bulk file.
About this data
Source: FCC Antenna Structure Registration (ASR) database, as published October 13, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.
Cite as: TowerCensus, “Antenna structure 1015420, Lyman, Cass County, Iowa”, https://towercensus.com/towers/iowa/lyman-1015420 (data as of October 13, 2026).