Boulder, CO (February 27, 2026) – A 75-year-old man was killed in a crash between a bicycle and a dump truck on Highway 119 near Niwot Rd on Friday, February 27, north of Boulder.
The collision occurred around 11:02 a.m. at the intersection of eastbound Niwot Rd and southbound Highway 119, also known as the Diagonal Highway. A dump truck turning right onto southbound Highway 119 collided with the bicyclist, who was continuing eastbound on Niwot Rd. The impact threw the rider from his bicycle.
Emergency units responded immediately and began providing medical care at the scene. Despite those efforts, the bicyclist’s injuries were described as very severe. He was pronounced dead at the scene. His identity had not been released pending notification of his family.
The cause of the crash remains under investigation, and more details will be released as they become available. We extend our sincere condolences to the family of the man killed in this tragic crash.
Right-Turn Crashes Involving Large Trucks and Cyclists Near Boulder
Right-turn collisions between large trucks and cyclists are among the most dangerous crash types on roads shared by both. When a dump truck or similar vehicle turns right, its wide turning radius and large blind spots can make it extremely difficult for the driver to see a cyclist continuing straight through an intersection, even in broad daylight.
Colorado law requires drivers to yield to cyclists traveling in the same direction before making a turn, but the sheer size difference between a dump truck and a bicycle leaves little margin for error when timing is misjudged. Cyclists are particularly vulnerable at intersections where truck traffic is common, especially on routes like Highway 119 that connect rural areas to urban corridors.
Boulder County has made significant investments in cycling infrastructure in recent years, but rural and semi-rural intersections along state highways remain challenging environments for riders. Cyclists sharing roadways with commercial vehicles are advised to make eye contact with drivers when possible and exercise extra caution at intersections with turning traffic.
