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LOS Analyzer

Antenna tower · 2026

Sleepy Valley Rd.-42413-WI18052-6191-Cloud 1

Viola, WI · near Leeward Farm (10.8 mi)

Determination of no hazardDetermined - No Hazard305 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

"The proposed structure is a 300-foot guyed tower. With all appurtenances the overall tower height is 305 feet AGL."

Filing details

Case number (ASN)
2026-AGL-7246-OE
Structure
Sleepy Valley Rd.-42413-WI18052-6191-Cloud 1
Type
Tower / antenna
Category
Antenna tower
Height above ground
305 ft
Height above sea level
1,580 ft
Site elevation
1,275 ft
Notice of
Alteration
Duration
Permanent
Marking & lighting
Dual-red and medium intensity

Timeline

Filed
May 13, 2026
Determined
May 27, 2026
Determination expires
—

Who filed it

Sponsor
Boldyn US
Representative
Eric Andresen

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

See every 2026 filing by Boldyn US →

Location

Coordinates
43.476653, -90.548631
Degrees / minutes / seconds
43°28'36.0"N 90°32'55.1"W
County
Richland

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.