Tower 1057390 — Concord, CA
TerminatedFCC Antenna Structure Registration 1057390 — tower (type not specified) near Concord, 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 1057390 is a 10 m (32 ft) tower near Concord, Contra Costa County, California. Its registration status is terminated, with construction recorded on Jun 30, 1999. It is registered to Nextel of California, Inc, which holds 180 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1057390 |
| Unique system identifier | 617847 |
| Status | Terminated (T) |
| Structure type | Tower (type not specified) (TOWER) |
| Date constructed | Jun 30, 1999 |
| Registration issued | Dec 19, 2006 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 98-AWP-2334-OE |
| FAA circular | 70/7460-1J |
| 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.
Location
- Address
- 4000 CLAYTON ROAD
- City
- Concord
- State
- California
- ZIP
- 94521
- County
- Contra Costa County
- County FIPS
- 06013
- Coordinates
- 37.96611, -122.00083
Within ~40 km
Nearby structures
Tower (type not specified) · Granted (not yet constructed)
Building with antenna · Terminated
Building with antenna · Granted (not yet constructed)
Building with antenna · Terminated
Building with pipe · Constructed
Building · Terminated
How tall is structure 1057390 compared with others?
At 10 m, structure 1057390 is about 35% of the 28 m average across the 216 structures registered in Contra Costa County. It is about 30% of the California average of 32 m across 11,862 registrations. Among the 75,198 registrations nationwide filed under the same structure-type code (TOWER), the average overall height is 76 m, so this one is about 13% of that figure.
The site's filed ground elevation is 62 m, which puts the top of the structure 72 m above mean sea level.
Where is structure 1057390, and what is registered around it?
The registration places the structure near Concord in Contra Costa County, California, at coordinates 37.96611, -122.00083, with the site address filed as "4000 CLAYTON ROAD". Contra Costa County has 216 FCC-registered antenna structures, the 14th-largest count among the 58 California counties with registrations, and 116 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 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 1057390 on Dec 19, 2006. Nationally, 8,911 of the 197,833 registrations (4.5%) carry the terminated status, including 1,525 in California.
Who owns antenna structure 1057390?
The FCC record lists Nextel of California, Inc of Reston, VA as the registered owner. Across the registry it holds 180 structure registrations, the 118th-largest portfolio among the 7,865 owners with two or more, including 166 in California. Its most common filed structure-type code is POLE (68 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 98-AWP-2334-OE and FAA Advisory Circular 70/7460-1J, 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 1057390?
Its registered overall height above ground is 10 m (32 ft), and 72 m (236 ft) above mean sea level.
Who owns tower 1057390?
The registered owner is Nextel of California, Inc, which holds 180 FCC antenna structure registrations.
Where is antenna structure 1057390?
It is located near Concord, Contra Costa County, California at 4000 CLAYTON ROAD (37.96611, -122.00083). Its status is terminated; it was constructed on Jun 30, 1999.
What type of structure is 1057390?
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. 75,198 registrations nationwide use the same code.
How many antenna structures are registered in Contra Costa County, CA?
Contra Costa County has 216 FCC-registered antenna structures, 116 of them constructed — the 14th-largest count among 58 counties in California.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1057390, 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 1057390, Concord, Contra Costa County, California”, https://towercensus.com/towers/california/concord-1057390 (data as of October 20, 2026).