January: Public Works Announces Niwot Road Median Closure Near Diagonal Highway

January: 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.

Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $116,000, making it one of the largest collaborative efforts in the county’s history.

Climate considerations are central to this effort. Boulder County’s 2025 Climate Action Plan sets targets of reducing greenhouse gas emissions 41% below 2005 levels by 2030. This project contributes to those goals through energy efficiency improvements, renewable energy integration, and reduced vehicle miles traveled.

How to Participate

The Superior Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 3,104 seniors participated in center programs last year.

According to Michael Kowalski, director of Public Health, this program served 41% more residents in 2026 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Superior and the surrounding area,” Michael Kowalski said.

Details

The project includes improvements along SH-119 Diagonal Highway between Superior and the intersection with Nelson Road. Construction is scheduled to begin in June 2026 with completion expected within 10 months.

Volunteers contributed over 9,134 hours to this program last year. The Public Health coordinates with 6 nonprofit partner organizations throughout Boulder County to deliver services.