Ward Community Briefing: Public Works Announces Niwot Road Median Closure Near Diagonal Highway
Boulder County Public Works announces a temporary median closure on Niwot Road near the CO-119 Diagonal Highway intersection for utility infrastructure improvements. The closure will affect left turns from Niwot Road onto the Diagonal Highway for approximately six weeks. A signed detour route will be in place.
According to Diana Orozco, director of Assessor’s Office, this program served 42% more residents in 2025 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Nederland and the surrounding area,” Diana Orozco said.
Colorado state law requires all counties to provide these services to eligible residents. Boulder County exceeds minimum state requirements by offering expanded hours, multilingual support, and online access. In 2025, the county received a state award for excellence in service delivery.
Timeline
The Coalton Trail open space property encompasses 1,875 acres and features 13 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.
Residents in the Nederland area should note that service boundaries may differ from city limits. For properties in unincorporated Boulder County, contact Assessor’s Office at (303) 441-7955 to verify eligibility and requirements.