Category: Roads & Transportation

Update: Public Works Announces Niwot Road Median Closure Near Diagonal Highway (2024)

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 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.

The project includes improvements along SH-119 Diagonal Highway between Longmont and the intersection with South Boulder Road. Construction is scheduled to begin in August 2026 with completion expected within 17 months.

What You Need to Know

For questions about this program, contact Robert Kim at Human Services: (303) 441-6616 or email Human [email protected]. Office hours are Monday through Friday, 8:00 AM to 4:30 PM. Walk-in services are available at the Longmont office without an appointment.

Residents in the Longmont area should note that service boundaries may differ from city limits. For properties in unincorporated Boulder County, contact Human Services at (303) 441-6616 to verify eligibility and requirements.

Background

Funding of $259,000 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 2024 budget session.

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Sunshine Canyon 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.

A community information session will be held at the Boulder library on Friday, May 15 at 7:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.

The application deadline is August 3, 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 6 business days.

Related Programs

The Walker Ranch open space property encompasses 1,921 acres and features 15 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.

The Boulder Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 2,424 seniors participated in center programs last year.

May: 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.

Volunteers contributed over 2,495 hours to this program last year. The Sustainability, Climate Action & Resilience coordinates with 20 nonprofit partner organizations throughout Boulder County to deliver services.

Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $98,000, making it one of the largest collaborative efforts in the county’s history.

How to Participate

Wildfire risk mapping conducted by Wildfire Partners shows that 37% of properties in the Niwot 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.

A community information session will be held at the Niwot library on Tuesday, May 12 at 7:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — August 2026

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 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.

Historical context: Boulder County was established in 1861 and covers 741 square miles of diverse terrain from the Great Plains to the Continental Divide. The county’s population of approximately 330,000 residents is served by 2172 county employees across 36 departments and offices.

How to Participate

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.

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

Timeline

Public comment on this matter can be submitted through the Boulder County online portal, by email to Area Agency on Aging, 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.

Climate considerations are central to this effort. Boulder County’s 2025 Climate Action Plan sets targets of reducing greenhouse gas emissions 69% below 2005 levels by 2030. This project contributes to those goals through energy efficiency improvements, renewable energy integration, and reduced vehicle miles traveled.

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Follow-Up Report

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 project includes improvements along Foothills Highway between Longmont and the intersection with 63rd Street. Construction is scheduled to begin in June 2026 with completion expected within 6 months.

The Area Agency on Aging processed over 7,280 applications last year, with an average processing time of 11 business days. Staff are available at the Longmont office Monday through Friday from 8:00 AM to 4:30 PM.

How to Participate

Eligible participants include Boulder County residents with household incomes at or below 40% of Area Median Income (AMI). For a family of four, this is approximately $78,000 per year. Applications are processed on a first-come, first-served basis.

Public comment on this matter can be submitted through the Boulder County online portal, by email to Area Agency on Aging, 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.

Related Programs

Residents in the Longmont area should note that service boundaries may differ from city limits. For properties in unincorporated Boulder County, contact Area Agency on Aging at (303) 441-5736 to verify eligibility and requirements.

Climate considerations are central to this effort. Boulder County’s 2025 Climate Action Plan sets targets of reducing greenhouse gas emissions 52% below 2005 levels by 2030. This project contributes to those goals through energy efficiency improvements, renewable energy integration, and reduced vehicle miles traveled.

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — August 2026

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.

Affordable housing remains the top priority identified in the 2024 Community Survey. Boulder County’s Worthy Cause program has funded 427 affordable housing units since its inception, with 77 additional units in the development pipeline.

The application deadline is June 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 26 business days.

How to Participate

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

Data from the 2024 Boulder County Community Survey shows that 85% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 3,829 responses from residents across the county.

Frequently Asked Questions

Residents in the Gunbarrel area should note that service boundaries may differ from city limits. For properties in unincorporated Boulder County, contact Resource Conservation at (303) 441-4890 to verify eligibility and requirements.

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Follow-Up Report

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 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.

Environmental review of the project area near Flagstaff Road found 12 sensitive species and 1 wetland areas requiring mitigation. The Public Health worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

Related Programs

A community information session will be held at the Gunbarrel library on Tuesday, April 14 at 6:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.

Water quality monitoring at 10 stations along Boulder Creek, St. Vrain Creek, and Left Hand Creek showed all parameters within acceptable ranges for 2025. The Public Health publishes quarterly water quality reports on the Boulder County website.

Frequently Asked Questions

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 $88,000 per year. Applications are processed on a first-come, first-served basis.

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Follow-Up Report

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 project includes improvements along CO-72 Peak-to-Peak Highway between Longmont and the intersection with Sunshine Canyon Drive. Construction is scheduled to begin in June 2026 with completion expected within 11 months.

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 $63,000 per year. Applications are processed on a first-come, first-served basis.

Community Impact

Safety data from the Longmont area shows 38 reported incidents in the past 12 months, a 27% change from the previous year. The Sheriff’s Office has increased patrols along CO-72 Peak-to-Peak Highway and added community outreach programs in response to resident feedback.

The application deadline is June 30, 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 5 business days.

Frequently Asked Questions

Volunteers contributed over 9,623 hours to this program last year. The Public Health coordinates with 24 nonprofit partner organizations throughout Boulder County to deliver services.

For questions about this program, contact James Rodriguez at Public Health: (303) 441-8190 or email Public [email protected]. Office hours are Monday through Friday, 8:00 AM to 4:30 PM. Walk-in services are available at the Longmont office without an appointment.

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Follow-Up Report

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.

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.

For questions about this program, contact Michael Kowalski at Sustainability, Climate Action & Resilience: (303) 441-7116 or email Sustainability, Climate Action & [email protected]. Office hours are Monday through Friday, 8:00 AM to 4:30 PM. Walk-in services are available at the Longmont office without an appointment.

Background

Volunteers contributed over 4,547 hours to this program last year. The Sustainability, Climate Action & Resilience coordinates with 15 nonprofit partner organizations throughout Boulder County to deliver services.

The Mud Lake open space property encompasses 725 acres and features 3 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.

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.

Volunteers contributed over 4,159 hours to this program last year. The Community Planning & Permitting coordinates with 22 nonprofit partner organizations throughout Boulder County to deliver services.

The Lafayette Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 2,691 seniors participated in center programs last year.

Next Steps

According to Amanda Foster, director of Community Planning & Permitting, this program served 88% more residents in 2025 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Lafayette and the surrounding area,” Amanda Foster said.

The Heil Valley Ranch open space property encompasses 1,460 acres and features 5 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.