Idaho State Highway 1
Encyclopedia
State Highway 1 is a state highway in Boundary County
, in the U.S. state
of Idaho
. It extends 11.185 miles (18 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
. 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.
, north to BC 21 in Porthill
. The route links Bonners Ferry
, via US-95 south, Porthill, and Creston, BC
. The road is the only state highway in Boundary County, the two other highways are US-95 and US-2. The highway starts at an intersection with US-95 east of Copeland.
north to Lewiston
, Coeur d'Alene
, before entering British Columbia
at Porthill
. Later in the mid-1930's, Idaho adopted a new numbered highway system with SH-1 as one of the first highways. The International Selkirk Loop
, which uses SH-1, was formed in 1999. The loop became an Idaho Scenic byway on January 21, 2004 as the Wild Horse Trail.
Boundary County, Idaho
Boundary County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 10,972. The county seat and largest city is Bonners Ferry....
, in the U.S. state
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...
of Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....
. It extends 11.185 miles (18 km) from U.S. Route 95 (US-95) east of Copeland
Copeland, Idaho
Copeland is an unincorporated community in Boundary County, Idaho, United States. Copeland lies on Idaho State Highway 1 north of its intersection with U.S. Route 95...
, north to British Columbia Highway 21 (BC 21) in Porthill
Porthill, Idaho
Porthill is an unincorporated community in Boundary County, Idaho, United States, located near the Canadian border into British Columbia. Idaho State Highway 1 runs straight through the community and to the Porthill Port of Entry which then turns into British Columbia Highway 21. The Porthill Port...
. The route serves as a connector between Bonners Ferry
Bonners Ferry, Idaho
Bonners Ferry is a city in and the county seat of Boundary County, Idaho, United States. The population was 2,543 at the 2010 census.-History:...
, via US-95 south, Porthill, and Creston, BC
Creston, British Columbia
Creston is a town of 4,826 people in the Kootenay region of southeastern British Columbia, Canada. The town is located just a few kilometers north of the Porthill, Idaho border crossing into the United States and about a three-hour drive north from Spokane, Washington. It is about a one-hour drive...
. The highway is one of two border crossings from Idaho into British Columbia
British Columbia
British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...
. The other crossing is at the US-95/BC 95 in Eastport
Eastport, Idaho
Eastport is an unincorporated community in Boundary County, Idaho, United States. Eastport is located at the Canadian border along U.S. Route 95, across from Kingsgate, British Columbia and north of Moyie Springs. Eastport has a post office with ZIP code 83826....
. 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
International Selkirk Loop
The International Selkirk Loop is a scenic highway in the U.S. states of Idaho and Washington, as well as the Canadian province of British Columbia. The loop encircles the Selkirk Mountain Range, and offers several side trips aside from the main route. Included on the loop is the Kootenay Lake...
, the only international scenic byway in North America.
Route description
SH-1 runs 11.92 miles (19.18 km) from U.S. Route 95 (US-95) east of CopelandCopeland, Idaho
Copeland is an unincorporated community in Boundary County, Idaho, United States. Copeland lies on Idaho State Highway 1 north of its intersection with U.S. Route 95...
, north to BC 21 in Porthill
Porthill, Idaho
Porthill is an unincorporated community in Boundary County, Idaho, United States, located near the Canadian border into British Columbia. Idaho State Highway 1 runs straight through the community and to the Porthill Port of Entry which then turns into British Columbia Highway 21. The Porthill Port...
. The route links Bonners Ferry
Bonners Ferry, Idaho
Bonners Ferry is a city in and the county seat of Boundary County, Idaho, United States. The population was 2,543 at the 2010 census.-History:...
, via US-95 south, Porthill, and Creston, BC
Creston, British Columbia
Creston is a town of 4,826 people in the Kootenay region of southeastern British Columbia, Canada. The town is located just a few kilometers north of the Porthill, Idaho border crossing into the United States and about a three-hour drive north from Spokane, Washington. It is about a one-hour drive...
. The road is the only state highway in Boundary County, the two other highways are US-95 and US-2. The highway starts at an intersection with US-95 east of Copeland.
History
SH-1 was originally created in the 1920's as part of Sampson Trail B, which ran from BoiseBoise, Idaho
Boise is the capital and most populous city of the U.S. state of Idaho, as well as the county seat of Ada County. Located on the Boise River, it anchors the Boise City-Nampa metropolitan area and is the largest city between Salt Lake City, Utah and Portland, Oregon.As of the 2010 Census Bureau,...
north to Lewiston
Lewiston, Idaho
Lewiston is a city in and also the county seat of Nez Perce County in the Pacific Northwest state of Idaho. It is the second-largest city in the northern Idaho region, behind Coeur d'Alene and ninth-largest in the state. Lewiston is the principal city of the Lewiston, ID - Clarkston, WA...
, Coeur d'Alene
Coeur d'Alene, Idaho
Coeur d'Alene is the largest city and county seat of Kootenai County, Idaho, United States. It is the principal city of the Coeur d'Alene Metropolitan Statistical Area. Coeur d'Alene has the second largest metropolitan area in the state of Idaho. As of the 2010 census the population of Coeur...
, before entering British Columbia
British Columbia
British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...
at Porthill
Porthill, Idaho
Porthill is an unincorporated community in Boundary County, Idaho, United States, located near the Canadian border into British Columbia. Idaho State Highway 1 runs straight through the community and to the Porthill Port of Entry which then turns into British Columbia Highway 21. The Porthill Port...
. Later in the mid-1930's, Idaho adopted a new numbered highway system with SH-1 as one of the first highways. The International Selkirk Loop
International Selkirk Loop
The International Selkirk Loop is a scenic highway in the U.S. states of Idaho and Washington, as well as the Canadian province of British Columbia. The loop encircles the Selkirk Mountain Range, and offers several side trips aside from the main route. Included on the loop is the Kootenay Lake...
, which uses SH-1, was formed in 1999. The loop became an Idaho Scenic byway on January 21, 2004 as the Wild Horse Trail.
Major intersections
| County | Location | Mile | Destinations | Notes |
|---|---|---|---|---|
| Boundary Boundary County, Idaho Boundary County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 10,972. The county seat and largest city is Bonners Ferry.... |
Copeland Copeland, Idaho Copeland is an unincorporated community in Boundary County, Idaho, United States. Copeland lies on Idaho State Highway 1 north of its intersection with U.S. Route 95... |
0.00 | Southern terminus, continuation beyond US-95 | |
| Porthill Porthill, Idaho Porthill is an unincorporated community in Boundary County, Idaho, United States, located near the Canadian border into British Columbia. Idaho State Highway 1 runs straight through the community and to the Porthill Port of Entry which then turns into British Columbia Highway 21. The Porthill Port... |
11.185 | Northern terminus, continuation beyond BC 21, Canadian border | ||
| enters British Columbia British Columbia British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858... as |
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