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Mountain Passes
US 20 ID 55 I‑84
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Mountain Passes—Boise
Map of Boise Between US 20 and Exit 38: I-84B Nampa; Garrity Blvd (near Nampa). Road construction work is in progress. The roadway is reduced to one lane. Speed restrictions are in force. There is a width limit in effect. Expect delays. The road is being repaved. There is work on the shoulder. Bridge construction work is in progress. Speed limit 55 MPH. Expect 10 - minute delays. Width limit 12'0". From 9:00PM MDT to 5:00AM MDT daily. Until May 15, 2021 at about 6:00PM MDT. Between ID 78 and Locust Lane (14 miles south of the Nampa area). The road is rough. Between Exit 28: 10th Street (Caldwell) and Exit 33 (near Nampa). Road construction work is in progress. The right shoulder is closed. The road is being repaved. Reduce your speed. There is a width limit in effect. The roadway is reduced to one lane. Speed limit 55 MPH. Width limit 16'0". Until July 1, 2021 at about 6:00AM MDT. Between State Street and Riverside Drive (Eagle). Road construction work is in progress. The roadway is reduced to one lane. From 10:00PM MDT to 6:00AM MDT on weekends and from 10:00PM MDT to 5:00AM MDT on weekdays. Until September 20, 2021 at about 5:00AM MDT. Between North Linder Road and North Meridian Road (near Eagle). Road construction work is in progress. There are alternating lane closures. There is work on the shoulder. Consider using an alternate route. Speed restrictions are in force. Speed limit 45 MPH. Until October 1, 2021 at about 6:00PM MDT. Between ID 55 (Eagle) and US 20; Glenwood Street (Garden City). Look out for rush hour traffic. Between Eleventh Avenue North Extension (5 miles east of the Caldwell area) and North Fox Run Avenue (near Eagle). Look out for rush hour traffic. Between I-84 and the end of I-184 (Boise). Look out for rush hour traffic. Between Cloverdale Road - Joplin Road and Eighth Street (Boise). Look out for rush hour traffic. Between I-84 (Meridian) and US 20 (Boise). Look out for rush hour traffic. Between Exit 28: 10th Street (Caldwell) and Exit 35: Northside Boulevard (Nampa). Look out for rush hour traffic. Between Exit 36 (Nampa) and Exit 44 (near Meridian). Look out for rush hour traffic.
ID 21: Highland Valley
ID 55: Horseshoe Bend Hill
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Mountain Pass Mountain Pass