Public Works Announces Niwot Road Median Closure Near Diagonal Highway Near Pine Brook Hills

Public Works Announces Niwot Road Median Closure Near Diagonal Highway Near Pine Brook Hills

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 Longmont Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 509 seniors participated in center programs last year.

According to Lisa Patel, director of Community Justice Services, this program served 73% more residents in 2025 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Longmont and the surrounding area,” Lisa Patel said.

Background

The project includes improvements along 75th Street between Longmont and the intersection with CO-72 Peak-to-Peak Highway. Construction is scheduled to begin in July 2026 with completion expected within 7 months.

Transportation access remains a key concern. Boulder County’s Via mobility program provides door-to-door transit service for residents in Longmont and surrounding communities who cannot access fixed-route bus service. RTD routes B, J, and BOLT serve major corridors.