Idaho State Highway 1

State Highway 1 marker
State Highway 1
North and South Highway Copeland – Porthill Branch
Copeland – Porthill Road
Map
ID 1 highlighted in red
Route information
Maintained by ITD
Length11.185 mi[1] (18.001 km)
Existedc. 1926[2]–present
Tourist
routes		Part of the International Selkirk Loop
Major junctions
South end US 95 near Copeland
North end Highway 21 in Porthill
Location
CountryUnited States
StateIdaho
CountiesBoundary
Highway system
  • Idaho State Highway System
← SH-200→ US 2

State Highway 1 (SH-1) is a state highway in Boundary County, in the U.S. state of Idaho. It extends 11.185 miles (18.00 km) from U.S. Route 95 (US-95) east of Copeland, north to British Columbia Highway 21 (BC 21) in Porthill. The route serves as a connector between Bonners Ferry, via US-95 south, Porthill, and Creston, BC. The highway is one of two border crossings from Idaho into British Columbia. The other crossing is at the US-95/BC 95 in Eastport.[3] The highway is also known for being the only state highway in Boundary County, the two other highways are US-95 and US-2. The highway is also part of the International Selkirk Loop, the only international scenic byway in North America.[4][5]

  1. ^ Staff (January 29, 2008). "Milepost Log: State Highway 1". Idaho Transportation Department. Archived from the original on December 12, 2012. Retrieved October 4, 2008.
  2. ^ Cite error: The named reference 1926-map was invoked but never defined (see the help page).
  3. ^ Idaho Transportation Department (May 22, 2007). "Bonners Ferry Port of Entry". Archived from the original on October 23, 2008. Retrieved October 4, 2008.
  4. ^ United States Department of Transportation. "America's Scenic Byways: International Selkirk Loop". Archived from the original on February 3, 2007. Retrieved October 4, 2008.
  5. ^ Kootenai National Wildlife Refuge (January 24, 2004). "International Selkirk Loop Receives Idaho State Scenic Byway Status". Bonners Ferry, Idaho: Kootenai National Wildlife Refuge.