Tower 1008304 — Spring Grove, IL
ConstructedFCC Antenna Structure Registration 1008304 — tower (type not specified) near Spring Grove, Illinois. 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 1008304 is a 51 m (167 ft) tower near Spring Grove, McHenry County, Illinois. Its registration status is constructed, with construction recorded on Sep 17, 1993. It is registered to Crown Castle GT Company, LLC, which holds 2,215 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1008304 |
| Unique system identifier | 113054 |
| Status | Constructed (C) |
| Structure type | Tower (type not specified) (TOWER) |
| Date constructed | Sep 17, 1993 |
| Registration issued | Jan 27, 2026 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2011-AGL-3308-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
Canonsburg, PA · FRN 0005793682
Holds 2,215 FCC structure registrations — view the full portfolio →
Location
- Address
- 11006 WILMONT RD
- City
- Spring Grove
- State
- Illinois
- ZIP
- 60081
- County
- McHenry County
- County FIPS
- 17111
- Coordinates
- 42.48453, -88.20206
Within ~40 km
Nearby structures
Unspecified structure · Constructed
Tower (type not specified) · Constructed
Guyed tower · Constructed
Tower (type not specified) · Constructed
Structure type 2TOWER · Constructed
Tower (type not specified) · Constructed
How tall is structure 1008304 compared with others?
At 51 m, structure 1008304 is about 13% below the 59 m average across the 190 structures registered in McHenry County. It is about 26% below the Illinois average of 69 m across 7,110 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 33% below that figure.
The supporting structure itself measures 46 m; antennas and other appurtenances on top bring the overall height above ground to 51 m. The site's filed ground elevation is 274 m, which puts the top of the structure 325 m above mean sea level.
Where is structure 1008304, and what is registered around it?
The registration places the structure near Spring Grove in McHenry County, Illinois, at coordinates 42.48453, -88.20206, with the site address filed as "11006 WILMONT RD". McHenry County has 190 FCC-registered antenna structures, the 5th-largest count among the 102 Illinois counties with registrations, and 124 of them are marked constructed. Illinois as a whole has 7,110 registrations, the 6th-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is Racine County, WI · 1036636, a structure at 154 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 1008304 on Jan 27, 2026. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 5,177 in Illinois.
Who owns antenna structure 1008304?
The FCC record lists Crown Castle GT Company, LLC of Canonsburg, PA as the registered owner, under FCC Registration Number 0005793682. Across the registry it holds 2,215 structure registrations, the 11th-largest portfolio among the 7,865 owners with two or more, including 158 in Illinois. Its most common filed structure-type code is TOWER (1,222 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2011-AGL-3308-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 1008304?
Its registered overall height above ground is 51 m (167 ft), and 325 m (1,065 ft) above mean sea level.
Who owns tower 1008304?
The registered owner is Crown Castle GT Company, LLC, which holds 2,215 FCC antenna structure registrations.
Where is antenna structure 1008304?
It is located near Spring Grove, McHenry County, Illinois at 11006 WILMONT RD (42.48453, -88.20206). Its status is constructed; it was constructed on Sep 17, 1993.
What type of structure is 1008304?
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 McHenry County, IL?
McHenry County has 190 FCC-registered antenna structures, 124 of them constructed — the 5th-largest count among 102 counties in Illinois.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1008304, 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 1008304, Spring Grove, McHenry County, Illinois”, https://towercensus.com/towers/illinois/spring-grove-1008304 (data as of October 13, 2026).