Firefighters shut down all lanes of traffic near NE Evergreen Road and NW Jackson School Road Wednesday night while they worked to free a person trapped in a trench. LifeFlight Network was activated to the scene as crews carried out the extrication, according to emergency officials on site.
The technical rescue call came in Wednesday evening in Hillsboro's industrial corridor, according to a post from Hillsboro Fire & Rescue, which said firefighters were working to extricate one person from the trench and that LifeFlight had been activated for the rescue. Officials advised drivers to use alternate routes and expect delays as lanes remained blocked in all directions during the operation. The department directs any emergencies to 911 and notes that its social media accounts are not monitored around the clock.
An Industrial Corridor Under Construction
The intersection sits in the middle of Hillsboro's Silicon Forest, surrounded by active commercial development. Nearby projects include the roughly 304,000-square-foot VanRose Technology Center on NW Jackson School Road and the 32-acre Jackson South Corporate Park on NE Evergreen Road, according to documents reviewed by Macadam Forbes. The buildout in that stretch of the city has brought heavy excavation and trenching work to the area as construction crews prepare sites for new industrial space.
Why LifeFlight Was Ready to Respond
The air ambulance's swift availability traces back to a base that opened nearby less than a year ago. LifeFlight Network announced in December 2025 that it would open a 24/7 critical care transport base at Hillsboro Airport, roughly a mile from the industrial corridor, equipped with an Airbus H135 helicopter and a Pilatus PC-12 NG airplane to serve Washington County, according to the Forest Grove News-Times. LifeFlight also conducts routine landing zone and patient transfer drills with local fire departments, including Hillsboro Fire & Rescue, which helped establish the joint operational workflows now in place during high-acuity rescues.
Hillsboro Fire & Rescue maintains specialized technical rescue teams trained in trench rescue, structural collapse, and heavy machinery extrication, and the department regularly runs joint live-trench drills with neighboring Tualatin Valley Fire & Rescue, according to the City of Hillsboro. That training is built for exactly the kind of high-risk entrapment crews faced Wednesday night, where speed and coordination between agencies can determine the outcome.
Why Trench Collapses Are So Dangerous
Trench cave-ins rank among the deadliest hazards in excavation work because a single cubic yard of dry soil can weigh up to 3,000 pounds, exerting crushing force that can cause suffocation within moments, per the federal Occupational Safety and Health Administration standards. That crushing weight is why technical rescue teams treat trench entrapments as some of the most time-sensitive calls they handle. Federal OSHA regulations under 29 CFR 1926 Subpart P require trenches four feet or deeper to provide safe access and egress, such as ladders or ramps, within 25 feet of lateral travel for workers, and mandate daily inspections by a designated competent person.
Oregon OSHA standards go further, requiring protective systems such as shoring, sloping, benching, or trench shields for any excavation five feet deep or greater, unless the cut is made entirely in stable rock. It remains unknown whether the trench involved in Wednesday's rescue met those depth thresholds, what caused the entrapment, or whether the person extricated suffered injuries. Oregon OSHA has not indicated whether it will investigate site safety compliance at the location.
A History of Trench Emergencies in Washington County
Wednesday's incident is not the first time the county has needed specialized extrication equipment and air transport for a trench collapse. Regional fire agencies previously responded to a 14-foot trench collapse on SW Bowmont Street in Cedar Hills in March 2014, and a 15-foot trench collapse on SW Roy Rogers Road in March 2016 that also required LifeFlight helicopter transport, according to the Beaverton Valley Times. Those earlier rescues underscore how often the county's ground conditions and construction pace have combined to produce dangerous excavation emergencies.
Hillsboro Fire & Rescue has also been expanding its own emergency infrastructure to keep pace with the city's rapid growth. The department recently completed South Hillsboro Fire Station 9 at SE Butternut Creek Parkway and SE Deline Street, part of a broader push to match staffing and equipment with the region's commercial and residential expansion. The department's operational posture has also been shaped by a High-Fire Danger Burn Ban that Washington County officials enacted in June, which reflects heightened resource management across local fire jurisdictions during the summer months.
As of Wednesday night, the condition of the person pulled from the trench had not been released, and lanes near NE Evergreen Road and NW Jackson School Road remained closed while crews finished the operation. Drivers in the area were urged to continue seeking alternate routes until officials lift the closures.
