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US 287 Improvements in Boulder County | Design Phase
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Projects
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US 287 Safety Improvements in Boulder County | Design Phase
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Sign replacement project to begin Monday on US 36 from Estes Park to Boulder
Aug. 15, 2025 - Northeastern Colorado - Motorists should plan for daytime and nighttime work
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2025
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August
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Traffic shift and intersection closure on CO 7 (Arapahoe Avenue) in Boulder starting next week
Sept. 12, 2025 - Northeastern Colorado - Long delays anticipated, alternate routes highly advised for weekend intersection closure Sept. 19 to 22
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2025
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September
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Emergency closure of CO 7 for rockslide cleanup extended to at least through Friday
June 20, 2023 - Northeastern Colorado - Crews have already hauled 100 truckloads of material from the site
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2023
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June
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Closures at Second Avenue and 83rd Street median near CO 119/Diagonal Highway start this week, Oxford Road median closure postponed
Sept. 9, 2025 - Northeastern Colorado - Construction continues on the CO 119 Safety, Mobility and Bikeway Improvements Project
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2025
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September
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CO 7 (Arapahoe Avenue) and 48th Street intersection closure in Boulder this weekend
Sept. 9, 2025 - Northeastern Colorado - Weekend closure needed for long-term road improvements
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2025
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September
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CDOT begins surface and safety improvement work on US 36
May 12, 2023 - Southeastern Colorado - Work will take place on US Highway 36 between Boulder and Lyons.
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2023
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May
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Improvements coming soon to Eldorado Park-n-Ride in Boulder
March 30, 2023 - Northern Colorado - Project beginning as early as April 3
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2023
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March
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ADA Ramp Upgrades in Longmont
Construction Complete, US Highways, Colorado Highways
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Archived Project Sites
