Campus Alert Archive
Reed

A Stuck Valve on a Nitrogen Tank Empties a Reed College Building

ORhazmatemergency notificationmedium confidence
Confirmed Threat

On the evening of April 22, 2026, a leaking nitrogen gas tank forced the evacuation of a Reed College building in Portland's Woodstock neighborhood. Portland Fire & Rescue found a valve stuck open on a large nitrogen tank and brought in hazardous-materials specialists, warning that nitrogen can displace oxygen in confined spaces. Crews closed the valve and stopped the flow by about 6:10 p.m.

Alerts
2
Response
—
Killed
—
Injured
—
Institution
Reed College
Private Liberal Arts · OR
~1,500 students
Confirmed Timeline

Alert Sequence

2 messages in sequence

Some alert texts below are approximate reconstructions from news coverage, not confirmed verbatim transcripts. Reconstructed texts are shown in italic with a dashed border. Verified verbatim texts have a solid border and are marked accordingly.

INITIAL ALERTSMS
Approximate reconstruction179 chars
Reed Alert: Evacuate the building immediately due to a nitrogen gas leak. Move outside to fresh air and stay clear of the building until you receive an all-clear. Do not re-enter.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

KOIN reported Portland Fire & Rescue responded around 5:45 p.m. PDT after reports of a leaking nitrogen tank and cleared the building; the alert wording is reconstructed from that coverage and not confirmed verbatim.
The evacuate-to-fresh-air instruction reflects the specific hazard: nitrogen is not flammable but displaces oxygen in confined spaces, so the danger is asphyxiation rather than fire.
Crews wearing breathing devices ventilated the space, underscoring why occupants needed to move outside rather than shelter in place.
ALL CLEARSMS
Approximate reconstruction148 chars
Reed Alert: The nitrogen leak has been stopped and the building has been ventilated. The all-clear is given and you may return to normal activities.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

Hoodline and KOIN reported that crews closed the top of the gas tank and stopped the flow of nitrogen just before 6:10 p.m. PDT.
This is a genuine all-clear because it confirms the hazard was stopped and the building ventilated, rather than continuing the evacuation.
The roughly 25-minute span from the 5:45 p.m. response to the 6:10 p.m. shutoff makes this one of the shorter hazmat events in the archive.
Context

Background

Reed College is a private liberal-arts college in Portland's Woodstock neighborhood. On April 22, 2026, a valve stuck open on a large nitrogen gas tank sent a campus building into evacuation after Portland Fire & Rescue responded around 5:45 p.m. Firefighters cleared the building and called in hazardous-materials specialists, noting that nitrogen displaces oxygen in confined spaces even though it is not flammable. Crews wearing breathing devices ventilated the space and closed the valve just before 6:10 p.m., stopping the leak with no injuries reported. Reed maintains building-evacuation and fire-safety guidance through its Community Safety office. The case is a clean example of an asphyxiation-risk hazmat alert — distinct from fire or chemical-spill incidents — at a small private campus with a chemistry-heavy science program.
Analysis

Key Findings

A nitrogen tank with a valve stuck open prompted a building evacuation at Reed College around 5:45 p.m. PDT on April 22, 2026
The hazard was oxygen displacement, not fire — nitrogen is inert and non-flammable but can cause asphyxiation in confined spaces
Portland Fire & Rescue hazmat crews ventilated the building and closed the valve just before 6:10 p.m., resolving the incident in about 25 minutes
No injuries were reported, and the incident illustrates the asphyxiation-risk subtype of campus hazmat alerts
Outcome
Portland Fire & Rescue cleared the building, ventilated the space, and closed the stuck valve just before 6:10 p.m., stopping the nitrogen flow. No injuries were reported.
Provenance

Sources

  1. News
    Reed College building in Portland, OR evacuated due to nitrogen gas leak Tuesday - KOIN
    koin.com
  2. News
    Nitrogen Tank Scare Empties Reed College Building In Woodstock - Hoodline
    hoodline.com
  3. Official
    Building evacuations - Community Safety - Reed College
    reed.edu
Tags
hazmatnitrogenevacuationprivate-liberal-artsoregonportlandasphyxiation-riskemergency-notification
Added May 2026Updated May 2026Via ingestion