Mast 1015543 — Livermore, CA
TerminatedFCC Antenna Structure Registration 1015543 — mast near Livermore, California. Slender vertical mast structure.
At a glance
FCC Antenna Structure Registration 1015543 is a 21 m (69 ft) mast near Livermore, Alameda County, California. Its registration status is terminated, with construction recorded on Jan 1, 1978. It is registered to PACIFIC GAS & ELECTRIC COMPANY.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1015543 |
| Unique system identifier | 118484 |
| Status | Terminated (T) |
| Structure type | Mast (MAST) |
| Date constructed | Jan 1, 1978 |
| Registration issued | Apr 14, 1997 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 78-AWE-494-OE |
| FAA circular | — |
| Painting / lighting spec | — |
| Marking / lighting code | — |
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
PACIFIC GAS & ELECTRIC COMPANY
San Francisco, CA
Location
- Address
- 17545 PATTERSON PASS RD
- City
- Livermore
- State
- California
- ZIP
- 94550
- County
- Alameda County
- County FIPS
- 06001
- Coordinates
- 37.71222, -121.56389
Within ~40 km
Nearby structures
Tower (type not specified) · Granted (not yet constructed)
Tower (type not specified) · Constructed
Tower (type not specified) · Canceled
- Ripon, CA · 1233742164 m
Tower (type not specified) · Constructed
- Sundol, CA · 1261727137 m
Tower (type not specified) · Canceled
Lattice tower · Constructed
How tall is structure 1015543 compared with others?
At 21 m, structure 1015543 is about 31% below the 31 m average across the 420 structures registered in Alameda County. It is about 35% below the California average of 32 m across 11,860 registrations. Among the 3,482 registrations nationwide filed under the same structure-type code (MAST), the average overall height is 53 m, so this one is about 39% of that figure.
The supporting structure itself measures 17 m; antennas and other appurtenances on top bring the overall height above ground to 21 m. The site's filed ground elevation is 119 m, which puts the top of the structure 140 m above mean sea level.
Where is structure 1015543, and what is registered around it?
The registration places the structure near Livermore in Alameda County, California, at coordinates 37.71222, -121.56389, with the site address filed as "17545 PATTERSON PASS RD". Alameda County has 420 FCC-registered antenna structures, the 9th-largest count among the 58 California counties with registrations, and 231 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 Bethel Island, CA · 1022770, a tower at 221 m (granted (not yet constructed)).
What does the status "Terminated" mean?
Terminated means the FCC has ended the registration. The FCC issued registration 1015543 on Apr 14, 1997. Nationally, 8,910 of the 197,770 registrations (4.5%) carry the terminated status, including 1,525 in California.
Who owns antenna structure 1015543?
The FCC record lists PACIFIC GAS & ELECTRIC COMPANY of San Francisco, CA as the registered owner.
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 78-AWE-494-OE, the FAA review of the structure's effect on air navigation.
Frequently asked questions
How tall is antenna structure 1015543?
Its registered overall height above ground is 21 m (69 ft), and 140 m (459 ft) above mean sea level.
Who owns tower 1015543?
The registered owner is PACIFIC GAS & ELECTRIC COMPANY.
Where is antenna structure 1015543?
It is located near Livermore, Alameda County, California at 17545 PATTERSON PASS RD (37.71222, -121.56389). Its status is terminated; it was constructed on Jan 1, 1978.
What type of structure is 1015543?
It is filed with the FCC under structure-type code MAST, which decodes to "Mast". Slender vertical mast structure. 3,482 registrations nationwide use the same code.
How many antenna structures are registered in Alameda County, CA?
Alameda County has 420 FCC-registered antenna structures, 231 of them constructed — the 9th-largest count among 58 counties in California.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1015543, 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 1015543, Livermore, Alameda County, California”, https://towercensus.com/towers/california/livermore-1015543 (data as of October 13, 2026).