Boulder
• 28th Street improvements: Pearl to Iris. This project will improve multimodal travel along 28th Street from Pearl to Iris. Northbound 28th and Valmont Road RTD Stop #17992 serving 205 and BOLT routes will be temporarily relocated to just south of the Valmont intersection until Dec. 31.
• 28th and Colorado protected intersection improvements: One westbound vehicle lane on Colorado Avenue will be closed. Drivers will be directed to the other westbound lane that remains open. The westbound transit stop at 28th and Colorado will be closed; transit riders are directed to the transit stop at 30th and Colorado. The project is expected to last until May 30.
• 19th Street and Fourmile Canyon Creek Underpass: Crews will begin replacing the bridge over Fourmile Canyon Creek and construct a bike/pedestrian underpass. During construction at all times, seven days a week, 19th Street will be closed to northbound vehicles, bikes and RTD bus service at Sumac Avenue with a detour at Quince Avenue via Broadway. Northbound RTD 204 bus stops at Riverside and Upland will be temporarily closed. Work is anticipated to end March 2, 2026.
Boulder County
• Riverside Drive at Cave Creek culvert replacement: A new culvert will be installed at the Cave Creek crossing on Riverside Drive and CR 103. This work will require a full closure of Riverside Drive at Cave Creek. Work will start at the end of March and the closure is anticipated to begin in early April. The closure is anticipated to last through the summer. All work is weather permitting. Residents of Riverside Drive west of Cave Creek (uphill) will need to use Peak to Peak Highway to access their properties. Residents of Riverside Drive east of Cave Creek (downhill) will need to use South St. Vrain Road/CO 7 to access their property. The project is expected to last through July.
• 95th Street (Valmont to Lookout Road) reconstruction and flood safety improvements: 95th Street between Valmont and Lookout roads will see significant construction activity lasting through the year. The project will be completed in two phases. The first phase, which is the reconstruction of the roadway, will require daytime, weekday road closures. The second phase, which is the construction of a large new culvert system, will require a full roadway closure. In addition, a new traffic signal and intersection configuration will be created at Lookout Road and 95th Street. Expect daytime, weekday lane shifts with short travel delays.
Longmont
• Firestone-Longmont mobility hub: The Colorado Department of Transportation is constructing the Firestone-Longmont Mobility Hub at the Interstate 25 and Colo. 119 interchange. Daytime work hours are expected from 7 a.m. to 7 p.m. Monday through Friday, with periodic overnight work. Motorists can expect periodic single-lane closures on Colo. 119 and I-25 and on- and off-ramp closures, as well as 11-foot lane restrictions on the southbound I-25 on-ramp and the northbound off-ramp at Exit 240. From 7 p.m. to 5 a.m. Tuesday through Thursday, construction crews will be realigning the southbound and northbound off-ramps. The Colorado Department of Transportation will have temporary closures that impact the I-25 southbound and northbound off-ramps at Exit 240, at Colo. 119 and southbound I-25 main line. The project is expected to be completed by August.
• Longs Peak Avenue: Work on the Price Park Tank Replacement Project is underway. This 18-month-long project is intended to improve water quality and service within the city. Eastbound and westbound lanes on Longs Peak Avenue now run next to each other along the south side of the road between Sunset Street and the entrance to the Sunset Golf Course. Access to Price Park is closed, and parking in the Sunset Golf Course and Pool parking lot will be limited until next spring. Recreational facilities — including Sunset Park, Sunset Pool and Sunset Golf Course — are expected to remain open during construction. There is still two-way traffic, but the existing westbound lane is expected to remain closed, and the new traffic pattern to remain in place until the project is completed in the summer.
Frederick
• National Work Zone Awareness Week: National Work Zone Awareness Week is April 15 through April 19. This year’s theme is “Work Zones are temporary. Actions behind the wheel can last forever.” Be on the lookout for signs, cones, workers and detours as roadwork projects scheduled to begin in mid-April throughout the Town of Frederick commence.
Colorado Boulevard: Plan for a full road closure of Colorado Boulevard (north and southbound lanes) along the Silverstone Marketplace construction site. Colorado Boulevard will be closed between Highway 52 and the traffic circle at Fifth Street. Roadwork will continue until mid-summer.
Erie
• Xcel Undergrounding: Xcel Energy Colorado is advancing a vital infrastructure project to relocate overhead power lines underground along County Line Road, starting April 15 through Sept. 1. During this period, there will be single lane closures between Telleen Avenue and Evans Street. To minimize traffic disruptions, especially during school hours, work is scheduled on weekdays from 9 a.m. to 3 p.m., with detours and traffic management in place at major intersections. Residents should anticipate delays and consider alternative routes.
• Colo. 7 and 119th Street: An intersection improvement project at Colo. 7 and 119th Street is officially underway, with an expected completion in late 2024. Residents will notice traffic control installations guiding the flow as construction teams dive into their tasks, including utility potholing and preparatory earthwork operations. Concurrently, various existing structures, such as fencing, will be removed to make room for the upgrades.
• Erie Commons irrigation pond repairs: Two irrigation ponds near the Erie Commons subdivision are undergoing repairs to address erosion. Construction traffic will be present near the intersection of Austin Avenue and Jarvis Drive and the Ortega Court cul-de-sac. Construction activities are scheduled from 7 a.m. to 6 p.m., Monday through Friday, with the goal of completing the repairs by April 28.
Mead
• WCR 38 bridge deck replacement: WCR 38, east of I-25 and west of WCR 13, will be closed for bridge deck replacement through mid-April. Local access will remain for most of WCR 38, but a hard closure will occur at the bridge over the Farmers Extension Canal. Traffic control will be in place, and motorists should use the detour routes.
