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ID 21
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Truck Restrictions on ID 21
Map of Reports on ID 21 Between I-84 and East Grand Forest Drive and Technology Way (Boise). Road construction work is in progress. The roadway is reduced to one lane. Look out for flaggers. Speed restrictions are in force. Speed limit 25 MPH. Until October 1. Between Highland Valley Summit and Robie Creek Road (9 to 12 miles north of the Boise area). Road maintenance work is in progress. The roadway is reduced to one lane. Look out for flaggers.
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