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LOS Analyzer

Antenna tower · 2026

874461 GILMAN

Gilman, IL · near Greater Kankakee (21.5 mi)

Determination of no hazardDetermined - No Hazard257 ft AGL

What this outcome means

The FAA studied the proposal and concluded it would not be a hazard to air navigation. A no-hazard determination is not permanent — it carries an expiration date, and if the structure is not built by then the case has to be re-filed.

The proposal, in the filer's words

"Filing for a tower height increase to 257ft. We request no change to the tower lighting that was determined under Circular 70/7460-1K."

Filing details

Case number (ASN)
2026-AGL-1690-OE
Structure
874461 GILMAN
Type
Tower / antenna
Category
Antenna tower
Height above ground
257 ft
Height above sea level
897 ft
Site elevation
640 ft
Notice of
Existing
Duration
Permanent
Marking & lighting
White-medium intensity

Timeline

Filed
January 23, 2026
Determined
January 27, 2026
Determination expires
—

Who filed it

Sponsor
Crown Castle USA - M.B.
Representative
Crown Castle

Names are shown as they appear in the FAA's public record. How we handle names

Location

Coordinates
40.774200, -87.972394
Degrees / minutes / seconds
40°46'27.1"N 87°58'20.6"W
County
Iroquois

Other filings within 5 miles

Organisation-sponsored 2026 filings whose coordinates sit near this one.

About this record

This page is a readable copy of a public record published by the FAA's Obstruction Evaluation / Airport Airspace Analysis system. It is not the official record and may lag it. For the authoritative case status, search this ASN at the FAA's OE/AAA portal. If something here is wrong, email support@idea-engine.studio and we will correct it.

Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.

Screening a structure of your own?

Check Part 77 and the tower's line of sight before you file

LOS Analyzer screens a proposed structure against FAA Part 77 surfaces and the control tower's sightline to the runway, terrain-aware, in minutes. It is a preliminary screening — not an FAA determination and not a substitute for a licensed engineering review.