Authorities in Anchorage are investigating a serious traffic incident that forced the closure of southbound lanes on the Glenn Highway near Boniface Parkway on Tuesday morning, resulting in major delays for commuters traveling through the area.
According to an alert issued by the Anchorage Police Department (APD) at approximately 9:10 a.m., all southbound lanes of the Glenn Highway at Boniface were shut down while officers conducted an active traffic investigation. Motorists were urged to avoid the area and seek alternate routes as emergency crews and investigators worked at the scene.
Officials have not yet released full details regarding the nature of the crash or how many vehicles were involved. Information about possible injuries or fatalities also had not been confirmed as of Tuesday morning. However, the scale of the closure suggests authorities are treating the incident as serious and requiring a detailed investigation.
Traffic quickly built up along sections of the Glenn Highway following the shutdown, with commuters reporting significant delays during the morning rush hour. Drivers heading southbound toward Anchorage were advised to use alternative routes while police managed congestion and maintained access for emergency responders.
Images and eyewitness reports from the scene showed emergency vehicles positioned near the affected stretch of highway as investigators documented the area. The Anchorage Fire Department and other emergency personnel were also believed to be assisting in the response.
The Glenn Highway is a major transportation corridor in Anchorage, connecting the city with surrounding communities including Eagle River and the Mat-Su Valley. Any closure along this route—especially during peak commuting hours—can have widespread impacts on regional traffic flow.
Authorities have not yet indicated how long the closure will remain in place, stating that lanes will reopen once investigators complete their work and the roadway is deemed safe. Drivers were encouraged to monitor local traffic updates and follow instructions from law enforcement on site.
Officials also reminded motorists that incidents like this highlight the importance of cautious driving, particularly during busy travel periods and changing road conditions. Drivers are urged to maintain safe speeds, remain alert, and keep proper following distances to reduce the risk of serious collisions.
As the investigation continues, APD is expected to release additional information regarding the circumstances of the crash, including whether factors such as speed, weather, or impairment may have contributed.
Anyone who witnessed the incident or has relevant information is encouraged to contact Anchorage police as investigators work to determine exactly what occurred on the Glenn Highway.