Glenn Highway Accident Today – Southbound Lanes Closed at Boniface Amid APD Traffic Investigation

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, causing 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 as officers conducted an active traffic investigation. Police urged motorists to avoid the area and seek alternate routes while emergency crews and investigators worked at the scene.

Officials have not yet released full details regarding the nature of the accident or how many vehicles may have been involved. Information about possible injuries or fatalities also had not been confirmed as of Tuesday morning. However, the significant traffic disruption suggested authorities were treating the scene as a serious incident requiring an extended investigation.

Traffic quickly backed up along portions of the Glenn Highway following the closure, with commuters reporting long delays during the busy morning rush hour. Drivers traveling southbound toward Anchorage were advised to use alternate roadways where possible, while police officers worked to manage congestion and maintain access for emergency responders.

Images and reports from the area showed emergency vehicles stationed near the affected section of highway as investigators documented the scene. The Anchorage Fire Department and other emergency personnel were also believed to be assisting in the response.

The Glenn Highway is one of Anchorage’s major transportation corridors and serves as a key route connecting the city with surrounding communities, including Eagle River and the Mat-Su Valley. Any closure along the highway—particularly during peak commuting hours—can have a significant impact on regional traffic flow.

Authorities have not indicated how long the closure is expected to remain in place, though officials said lanes would reopen once investigators completed their work and it was safe for traffic to resume. Drivers were encouraged to monitor local traffic updates and follow directions from law enforcement personnel on scene.

Tuesday’s incident also serves as another reminder of the dangers drivers can face on Alaska roadways, particularly during periods of heavy traffic and changing road conditions. Officials routinely urge motorists to remain alert, reduce speed when necessary, and maintain safe following distances to help prevent serious collisions.

As the investigation continues, APD is expected to release additional information regarding the circumstances surrounding the crash, including whether weather, speed, impairment, or other factors may have contributed to the incident.

Anyone who may have witnessed the accident or has relevant information is encouraged to contact Anchorage police as investigators work to determine exactly what occurred on the Glenn Highway Tuesday morning.