Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Louisville Area

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Louisville Area

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.

The application deadline is July 14, 2026. Late applications will be accepted on a space-available basis. Incomplete applications will be returned with a list of missing items. Average review time is 10 business days.

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.

Details

Funding of $475,000 for this initiative comes from a combination of federal grants, state matching funds, and the Boulder County General Fund. The Board of County Commissioners approved the allocation during the 2025 budget session.

The Lyons Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 1,403 seniors participated in center programs last year.

How to Participate

Wildfire risk mapping conducted by Wildfire Partners shows that 31% of properties in the Lyons area are within the wildland-urban interface. Free home assessments are available through the Wildfire Partners program, with rebates of up to $2,500 for mitigation improvements.