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LOS Analyzer

Crane · 2026

Silver Creek Bridge

Fort McCoy WI, WI · near Sparta/Fort Mc Coy (1.7 mi)

Determination of no hazardDetermined - No Hazard120 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

"Bridge Replacement over Silver Creek"

Filing details

Case number (ASN)
2026-AGL-4656-OE
Structure
Silver Creek Bridge
Type
Crane
Category
Crane
Height above ground
120 ft
Height above sea level
958 ft
Site elevation
838 ft
Notice of
New Construction
Duration
Temporary
Marking & lighting
Red lights and flags

Timeline

Filed
March 13, 2026
Determined
March 19, 2026
Determination expires
September 19, 2027

A determination that lapses before the structure is built has to be re-filed. The FAA does not send a reminder.

Who filed it

Sponsor
Larson Construction Co Inc
Representative
Larson Construction Co Inc

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

Location

Coordinates
43.948090, -90.707810
Degrees / minutes / seconds
43°56'53.1"N 90°42'28.1"W
County
Monroe

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.