Tower 1018359 — Watsonville, CA
ConstructedFCC Antenna Structure Registration 1018359 — tower (type not specified) near Watsonville, California. Filed under the FCC's older general tower code, which does not record whether the tower is guyed, lattice or a monopole.
At a glance
FCC Antenna Structure Registration 1018359 is a 473 m (1,552 ft) tower near Watsonville, Santa Clara County, California. Its registration status is constructed, with construction recorded on Jan 1, 1984. It is registered to Mount Madonna Tower Owners Association.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1018359 |
| Unique system identifier | 120762 |
| Status | Constructed (C) |
| Structure type | Tower (type not specified) (TOWER) |
| Date constructed | Jan 1, 1984 |
| Registration issued | Jun 29, 2009 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 97-AWP-0690-OE |
| FAA circular | — |
| Painting / lighting spec | A1, B, F, H, 3, 10, 19, 21, 23 |
| Marking / lighting code | FAA Style F (8) |
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
Mount Madonna Tower Owners Association
Foster City, CA · FRN 0018893388
Location
- Address
- APPROX 9 MI N
- City
- Watsonville
- State
- California
- ZIP
- 95037
- County
- Santa Clara County
- County FIPS
- 06085
- Coordinates
- 37.05778, -121.77611
Within ~40 km
Nearby structures
Tower (type not specified) · Canceled
Unspecified structure · Canceled
Lattice tower · Constructed
Tower (type not specified) · Constructed
- Marina, CA · 1016017108 m
Unspecified structure · Dismantled
Antenna tower array (tower 4 of 4) · Constructed
How tall is structure 1018359 compared with others?
At 473 m, structure 1018359 is about 17 times the 29 m average across the 467 structures registered in Santa Clara County. It is about 15 times the California average of 32 m across 11,860 registrations. Among the 75,247 registrations nationwide filed under the same structure-type code (TOWER), the average overall height is 76 m, so this one is about 6.2 times that figure.
The supporting structure itself measures 449 m; antennas and other appurtenances on top bring the overall height above ground to 473 m. The site's filed ground elevation is 761 m, which puts the top of the structure 1,234 m above mean sea level.
Where is structure 1018359, and what is registered around it?
The registration places the structure near Watsonville in Santa Clara County, California, at coordinates 37.05778, -121.77611, with the site address filed as "APPROX 9 MI N". Santa Clara County has 467 FCC-registered antenna structures, the 7th-largest count among the 58 California counties with registrations, and 215 of them are marked constructed. California as a whole has 11,860 registrations, the 2nd-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is San Jose, CA · 1061813, a tower at 152 m (canceled).
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 1018359 on Jun 29, 2009. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 6,866 in California.
Who owns antenna structure 1018359?
The FCC record lists Mount Madonna Tower Owners Association of Foster City, CA as the registered owner, under FCC Registration Number 0018893388.
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 97-AWP-0690-OE, the FAA review of the structure's effect on air navigation. Its marking and lighting code, 8, is listed on the FCC registration form as "FAA Style F". The painting and lighting specification on file cites FAA chapters A1, B, F, H, 3, 10, 19, 21, 23.
Frequently asked questions
How tall is antenna structure 1018359?
Its registered overall height above ground is 473 m (1,552 ft), and 1,234 m (4,049 ft) above mean sea level.
Who owns tower 1018359?
The registered owner is Mount Madonna Tower Owners Association.
Where is antenna structure 1018359?
It is located near Watsonville, Santa Clara County, California at APPROX 9 MI N (37.05778, -121.77611). Its status is constructed; it was constructed on Jan 1, 1984.
What type of structure is 1018359?
It is filed with the FCC under structure-type code TOWER, which decodes to "Tower (type not specified)". Filed under the FCC's older general tower code, which does not record whether the tower is guyed, lattice or a monopole. 75,247 registrations nationwide use the same code.
How many antenna structures are registered in Santa Clara County, CA?
Santa Clara County has 467 FCC-registered antenna structures, 215 of them constructed — the 7th-largest count among 58 counties in California.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1018359, 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 1018359, Watsonville, Santa Clara County, California”, https://towercensus.com/towers/california/watsonville-1018359 (data as of October 13, 2026).