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After a head-on collision east of Lowman claimed the life of a 32-year-old Caldwell woman Saturday, residents who live along Highway 21 say the tragedy highlights long-standing concerns about speeding ... Read More

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Boise County Sheriff's Office responded to a crash on Highway 21 that resulted in one fatality and the highway being closed in both directions for five hours. Read More

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A multi-vehicle crash has shut down Idaho Highway 21 near the Sourdough Lodge area, prompting a full closure in both directions.The Boise County Sheriff's Offic ... Read More

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Drivers heading to the Naples Grape Festival this weekend are being urged to plan ahead as a Route 21 closure in South Bristol is expected to push additional traffic onto the primary detour route. The ... Read More

A homeless encampment located below the intersection of Interstate 280 and Route 21 in Newark is slated for removal amidst ongoing safety concerns. Tents line the side of the highway on-ramp to I-280. Read More

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The I-26 eastbound Exit 129 ramp to Highway 21 will close Friday at 8 p.m. and is expected to reopen by 6 a.m. Monday. Read More

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Taking I-26 eastbound to Highway 21? Here's what the weekend detour looks like. Read More