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US 550 closure times have been adjusted for June 1 (8 a.m. to 3 p.m.)
May 29, 2026 - Southwestern Colorado - Motorists traveling between Silverton and Durango will be able to travel through Molas Pass before 8 a.m.
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May 2026 News
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Correction: US 550 scheduled to fully close June 1 from 7 a.m. to 2 p.m.
May 26, 2026 - Southwestern Colorado - Four-day chip seal operations planned between Molas Pass and Red Mountain Pass June 1 to 4
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May 2026 News
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Southwest Colorado Striping
State Highways, US Highways
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CDOT takes advantage of unseasonably warm weather to perform routine maintenance
February 2, 2026 - Southwestern Colorado - Plan for brief delays on US 550 and CO 145 Feb. 3 to 6
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2026 News & Press Releases
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February 2026 News
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Motorists can expect lengthy Saturday morning delays on US 550 Red Mountain Pass
Jan. 24, 2026 - Crews will perform winter maintenance operations beginning at 10 a.m.
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January 2026 News
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US 550 overnight closure scheduled Dec. 16 south of Ouray
Dec. 12, 2025 - Southwestern Colorado - Plan for additional daytime delays on US 550 and CO 145 during winter maintenance operations
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2025 News & Press Releases
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December 2025 News
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Snow conditions call for critical maintenance operations on US 550 Red Mountain Pass
Dec. 5, 2025 - Southwestern Colorado - Motorists should plan for lengthy morning delays on Saturday, Dec. 6 and Tuesday, Dec. 9
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December 2025 News
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Three southwest mountain passes scheduled to close Nov. 25 for winter maintenance preparation
Nov. 21, 2025 - Southwestern Colorado - Lengthy morning delays on US 160 Wolf Creek, US 550 Red Mountain and CO 145 Lizard Head Passes
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November 2025 News
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Rockfall stabilization and retaining wall replacement project completed on US 550 Coal Bank Pass
Nov. 13, 2025 - Southwestern Colorado - Improvements will help prevent potential of rockfall hazard for motorists
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2025 News & Press Releases
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November 2025 News
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Silverton modular home delivery requires US 550 highway closures
Oct. 7, 2025 - Southwestern Colorado - Full two-hour closures scheduled for the morning and afternoon of Friday, Oct. 10
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October 2025 News
