Public Works Announces Niwot Road Median Closure Near Diagonal Highway Near Longmont

Public Works Announces Niwot Road Median Closure Near Diagonal Highway Near Longmont

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.

Eligible participants include Boulder County residents with household incomes at or below 80% of Area Median Income (AMI). For a family of four, this is approximately $51,000 per year. Applications are processed on a first-come, first-served basis.

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

How to Participate

The program is modeled after similar successful initiatives in Larimer County and Jefferson County. Boulder County’s version includes additional provisions for wildfire mitigation, affordable housing, and environmental sustainability.

Public comment on this matter can be submitted through the Boulder County online portal, by email to Community Planning & Permitting, or in person at the next Board of County Commissioners meeting. Written comments received by 5:00 PM the day before the hearing will be included in the public record.

Details

Safety data from the Superior area shows 21 reported incidents in the past 12 months, a 5% change from the previous year. The Sheriff’s Office has increased patrols along Arapahoe Road and added community outreach programs in response to resident feedback.

The application deadline is May 23, 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 11 business days.