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Update: US 550 Red Mountain Pass road work to begin July 20
July 16, 2026 - Southwestern Colorado - Motorists will encounter traffic signals 24/7, with emergency plans in place if needed for wildfire or flooding activity
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2026 News & Press Releases
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July 2026 News
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US 550 Red Mountain Pass road work to begin July 20
July 6, 2026 - Southwestern Colorado - Traffic signals will be in place 24/7 with single lane alternating traffic between Ouray and Silverton
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July 2026 News
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US 550 opens to through-traffic on July 1 between Ouray and Ridgway
July 1, 2026 - Southwestern Colorado - Travelers should be prepared for emergency road closures at any time
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July 2026 News
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US 550 Retaining Wall and Tunnel Repairs
Active Construction, US Highway
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Southwest Colorado Striping
State Highways, US Highways
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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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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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Repairs to be made on three bridges in southwest Colorado
Sept. 4, 2025 - Southwestern Colorado - Expect temporary detours and traffic signals at bridges during work hours
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September 2025 News
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US 550 Red Mountain Pass lengthy closures set for power line reconstruction
Aug. 28, 2025 - Southwestern Colorado - San Miguel Power utility project will impact travel for three weeks, Sept. 2 to 18
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August 2025 News
