Boulder IRONMAN 70.3 to close local roads
August 4, 2021
On Saturday, Aug. 7, several local streets, including Highway 119, North 75th Street, and Niwot Road, will be subject to delays due to the Boulder Ironman 70.3. The race runs from 7 a.m. to 2 p.m. and is considered a half-triathlon, with participants running, swimming and biking on the course. In addition, Boulder Reservoir will be closed to everyone except those with an Ironman access pass.