November X, 2025

Upcoming nighttime closures at the

Karcher Interchange Bridge 11/17 & 11/18

The Karcher Interchange Bridge will be closed on Monday, November 17 and Tuesday, November 18 from 10 p.m. to 5 a.m. Crews will be removing the large steel structure that holds the signs over the bridge.


View the detours below.

Click here to download the detour map.

Motorists traveling south on Karcher Road (SH-55):


  1. Travel south on the Karcher Bypass.
  2. Turn right onto West Karcher Road.
  3. Turn left onto Midland Boulevard.
  4. Turn right onto Caldwell Boulevard.
  5. Continue straight to Karcher Road (SH-55). 

Motorists traveling north on Karcher Road (SH-55):


  1. Use the eastbound on-ramp to merge on to I-84.
  2. Exit I-84 at Northside Boulevard (Exit 35).
  3. Travel north on Northside Boulevard.
  4. Turn left onto Karcher Road/Karcher Bypass.
  5. Continue on Karcher Road/Karcher Bypass. 
Download this bulletin
 

Persons needing an interpreter or special accommodations are urged to contact 208-334-8884 or TTY/TDD users Dial 711 to use the Idaho Relay System.
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Idaho Transportation Department | 3311 W. State St. | Boise, ID 83707 US

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