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LOS Analyzer

Tank stack · 2026

KILLINGSWORTH

Portland, OR · near Portland Downtown (2.6 mi)

Determination of no hazardDetermined - No Hazard131 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

"Applicant is filing in owner's behalf to request specific frequencies. Increasing antenna height to 131ft. This site will comply with the operational parameters agreed to in collaboration with the FAA as part of its 5G C-band compatibility evaluation process as they may evolve over time."

Filing details

Case number (ASN)
2026-ANM-811-OE
Structure
KILLINGSWORTH
Type
Water_system
Category
Tank stack
Height above ground
131 ft
Height above sea level
338 ft
Site elevation
207 ft
Notice of
Existing
Duration
Permanent
Marking & lighting
—

Timeline

Filed
February 13, 2026
Determined
July 2, 2026
Determination expires
—

Who filed it

Sponsor
Bureau Of Water Works City of Portland
Representative
AT&T

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

Location

Coordinates
45.561750, -122.681369
Degrees / minutes / seconds
45°33'42.3"N 122°40'52.9"W
County
Multnomah

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.