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LOS Analyzer

Tank stack · 2026

Asphalt Plant Materials Storage Silo

Beckwourth, CA · near Nervino (0.5 mi)

Determination of no hazardDetermined - No Hazard45 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

"Mercer-Fraser Company proposes to install and operate a portable asphalt concrete plant on a Light Industrial–zoned property in Plumas County California for a period of up to 15 years. The project would involve the temporary placement and operation of a portable drum mix plant to produce conventional and rubberized asphalt for use in local and regional construction and roadway projects. Ancillary components would include storage tanks generators aggregate stockpiles material handling equipment and truck loading areas. Operations would occur on an as-needed basis and may vary in duration and hours depending on project demand. No permanent structures are proposed and the plant would be removed from the site upon completion of operations. Tallest component of the proposed project is a materials storage silo that is 45 feet tall."

Filing details

Case number (ASN)
2026-AWP-7524-OE
Structure
Asphalt Plant Materials Storage Silo
Type
Other
Category
Tank stack
Height above ground
45 ft
Height above sea level
4,933 ft
Site elevation
4,888 ft
Notice of
New Construction
Duration
Permanent
Marking & lighting
—

Timeline

Filed
April 27, 2026
Determined
June 12, 2026
Determination expires
December 12, 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
Mercer-fraser Company
Representative
Compass LAND Group

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

Location

Coordinates
39.812431, -120.358194
Degrees / minutes / seconds
39°48'44.8"N 120°21'29.5"W
County
Plumas

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.