Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
ID 21
ID 21: Road construction, roadway reduced to one lane, look out for flaggers, speed restrictions in force.
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.
ID 21: Road maintenance operations, roadway reduced to one lane, look out for flaggers, short delays.
Between Robie Creek Road (13 miles north of the Boise area) and Grimes Creek Road (10 miles south of the Idaho City area). Road maintenance work is in progress. The roadway is reduced to one lane. Look out for flaggers. Short delays are possible. From 8:00AM MDT to 4:30PM MDT on Monday, Tuesday and Wednesday. Until Wednesday, at about 4:30PM MDT.
Switch to Winter Driving Conditions
Switch to Truck Restrictions
Reports 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 Robie Creek Road (13 miles north of the Boise area) and Grimes Creek Road (10 miles south of the Idaho City area). Road maintenance work is in progress. The roadway is reduced to one lane. Look out for flaggers. Short delays are possible. From 8:00AM MDT to 4:30PM MDT on Monday, Tuesday and Wednesday. Until Wednesday, at about 4:30PM MDT.
ID 21: Road construction, roadway reduced to one lane, look out for flaggers, speed restrictions in force.
ID 21: Road maintenance operations, roadway reduced to one lane, look out for flaggers, short delays.
Google Static Map Image
Closure Closure Restriction Restriction Crash Crash Warning Warning Info Info