Longmont-area cone zones for Sept. 21-27
• 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 October.
• 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.
• County Line Road corridor upgrade project Cheesman to Balcolm closure: Construction will take place on County Line Road from Cheesman to Balcolm Streets, lasting approximately 4-6 weeks. The County Line Road corridor upgrade project spans from Kenosha Road to Highway 7 and will occur in smaller segments through January 2025, weather permitting. Southbound traffic will now be rerouted onto Main Street, while northbound traffic will be redirected onto High Street. The speed limit on Main and High streets will be 25 mph, and fines will be doubled for violations.
• Arapahoe Ridge Roadway Improvement Project: The project involves a two-inch mill and overlay of the existing road surfaces. The milling process will remove the top two inches of asphalt, eliminating ruts, cracks and bumps. Following this, a new two-inch layer of hot mix asphalt will be applied, ensuring a smooth and durable road surface capable of handling traffic and weather effectively. All of Arapahoe Ridge will see a mill and overlay, progressing from west to east. The first area of work includes McClure Drive, Cummings Drive, Beasley Drive and Billington Drive. Crews will then move to the second area, covering Stevens Circle North, Bell Drive and Stevens Circle South. Once these two areas are completed, crews will move to the east side of 111th Street, working on Betts Circle, Walker Street, MacCullen Drive, Hughes Drive, Woodward Street, Dickens Street and Prince Circle. Working hours are from 8 a.m.-4 p.m. Monday-Friday pending weather and other unforeseen delays. Full driveway access for residents will be maintained. Drivers are advised to be aware of personal and equipment in work areas. Expect temporary detours with clear signage, restricted access in certain areas during work hours and necessary parking restrictions.
• Asphalt maintenance project: The town will begin its street maintenance project to enhance road quality in Erie. The project involves a two-inch mill and overlay of various streets. This process will remove the top two inches of existing asphalt to eliminate surface irregularities, followed by applying a new two-inch layer of hot mix asphalt to restore the road to a smooth, durable condition. Expect temporary traffic detours, restricted access, noise, dust and parking restrictions during work hours. Affected streets included in the project are Forsythia Street, Forsythia Court, Forsythia Place, Lilac Circle, Alpine Drive, Primrose Lane, Primrose Place, Crestview Lane, Hamilton Road, Holly Drive, Dogwood Drive, Dogwood Circle, Ivy Way, Wisteria Drive and Azalea Way.
• County Line Road lane closure: New electrical feeds on the west side of County Line Road will be added to support new streetlights and a service connection. This work will occur between Cheeseman Street and Moffat Street. The southbound lane of County Line Road will be closed from 7 a.m. to 7 p.m. during the work. Southbound traffic will be detoured east on Cheeseman Street to Briggs Street. The northbound lane will remain fully open, and all traffic in this section must travel northbound. Work is expected to last through Monday and will take place Monday-Friday from 9 a.m. to 3 p.m.
• Road striping operations: Road striping operations will be conducted on most major arterial roads throughout the Town of Erie through Nov. 30, weather and other delays pending.
• Evans Street closure: Evans Street will be closed between County Line Road and Carbon Street until Oct. 10 for utility work. Traffic will detour via Cheeseman Street then onto Carbon Street to access Evans Street.
• Piper Drive partial lane closure: The town will be replacing a damaged storm culvert under Piper Drive, located on the east property line of 235 Piper Drive. Due to this work, one side of the street will be closed at a time to allow for excavation and replacement. There will be no full road closure, and traffic control will be in place to manage flow. Work hours will be from 9 a.m.-4 p.m. weekdays, with expected completion by Sept. 30, weather permitting.
Boulder County
• 95th Street (Valmont to Lookout roads) 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, beginning Aug. 26. 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. Construction is expected to be completed by December.
• Colo. 119 resurfacing: CDOT will begin a resurfacing project on Colo. 119 between the roundabout in Nederland and Colo. 72/Coal Creek Canyon. Work will start at the south end of the project and progress north. Travelers can expect single-lane closures and delays of up-to-10-minutes between 7 a.m.-7 p.m., Monday through Friday. The project is anticipated to last through September, weather permitting.
• Jay Road paving project: Jay Road will be repaved and restriped between Colo. 119 and 63rd Street starting in September. Work will require daytime, weekday lane closures and traffic shifts, so expect delays. Flaggers will be used to safely move travelers around construction. The project is anticipated to end in late September.
• 120th Street closure: Crews working on the Willoughby Corner Housing Project will close 120th Street between Colo. 7 and Emma Street starting Monday. The closure will be in place for approximately 10-weeks, weather permitting.
