Mast 1217509 — San Bruno, CA
ConstructedFCC Antenna Structure Registration 1217509 — mast near San Bruno, California. Slender vertical mast structure.
At a glance
FCC Antenna Structure Registration 1217509 is a 18 m (60 ft) mast near San Bruno, San Mateo County, California. Its registration status is constructed, with construction recorded on Aug 31, 2001. It is registered to SAN FRANCISCO, CITY AND COUNTY OF, which holds 14 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1217509 |
| Unique system identifier | 2615085 |
| Status | Constructed (C) |
| Structure type | Mast (MAST) |
| Date constructed | Aug 31, 2001 |
| Registration issued | Dec 3, 2019 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 00-AWP-1776-OE |
| FAA circular | — |
| Painting / lighting spec | NONE |
| Marking / lighting code | None (1) |
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
SAN FRANCISCO, CITY AND COUNTY OF
San Francisco, CA · FRN 0001540731
Holds 14 FCC structure registrations — view the full portfolio →
Location
- Address
- Harry Tracy Water Treatment Plant, 2901 Crystal Springs Road
- City
- San Bruno
- State
- California
- ZIP
- 94030
- County
- San Mateo County
- County FIPS
- 06081
- Coordinates
- 37.60175, -122.42256
Within ~40 km
Nearby structures
Lattice tower · Constructed
Building with antenna · Constructed
Building with antenna · Granted (not yet constructed)
Building with antenna · Terminated
Building with antenna · Terminated
Building with antenna · Terminated
How tall is structure 1217509 compared with others?
At 18 m, structure 1217509 is about 18% below the 22 m average across the 330 structures registered in San Mateo County. It is about 43% below the California average of 32 m across 11,862 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 34% of that figure.
The site's filed ground elevation is 144 m, which puts the top of the structure 162 m above mean sea level.
Where is structure 1217509, and what is registered around it?
The registration places the structure near San Bruno in San Mateo County, California, at coordinates 37.60175, -122.42256, with the site address filed as "Harry Tracy Water Treatment Plant, 2901 Crystal Springs Road". San Mateo County has 330 FCC-registered antenna structures, the 11th-largest count among the 58 California counties with registrations, and 153 of them are marked constructed. California as a whole has 11,862 registrations, the 2nd-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is San Francisco, CA · 1001289, a lattice tower at 298 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 1217509 on Dec 3, 2019. Nationally, 141,898 of the 197,833 registrations (71.7%) carry the constructed status, including 6,869 in California.
Who owns antenna structure 1217509?
The FCC record lists SAN FRANCISCO, CITY AND COUNTY OF of San Francisco, CA as the registered owner, under FCC Registration Number 0001540731. Across the registry it holds 14 structure registrations, including 14 in California. Its most common filed structure-type code is TOWER (3 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 00-AWP-1776-OE, the FAA review of the structure's effect on air navigation. Its marking and lighting code, 1, is listed on the FCC registration form as "None".
Frequently asked questions
How tall is antenna structure 1217509?
Its registered overall height above ground is 18 m (60 ft), and 162 m (532 ft) above mean sea level.
Who owns tower 1217509?
The registered owner is SAN FRANCISCO, CITY AND COUNTY OF, which holds 14 FCC antenna structure registrations.
Where is antenna structure 1217509?
It is located near San Bruno, San Mateo County, California at Harry Tracy Water Treatment Plant, 2901 Crystal Springs Road (37.60175, -122.42256). Its status is constructed; it was constructed on Aug 31, 2001.
What type of structure is 1217509?
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 San Mateo County, CA?
San Mateo County has 330 FCC-registered antenna structures, 153 of them constructed — the 11th-largest count among 58 counties in California.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1217509, weekly bulk file.
About this data
Source: FCC Antenna Structure Registration (ASR) database, as published October 20, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.
Cite as: TowerCensus, “Antenna structure 1217509, San Bruno, San Mateo County, California”, https://towercensus.com/towers/california/san-bruno-1217509 (data as of October 20, 2026).