From there, SR 25 parallels the Columbia River and Franklin D. Roosevelt Lake upstream through several small communities, passing the Gifford–Inchelium Ferry, to Kettle Falls.

In 1937, SR 22 became Primary State Highway 22 (PSH 22) and the border crossing was moved west of the Columbia River.

[7] There isn't a fare for the ferry, named the MV Columbia Princess, and it runs daily every 15 minutes from 6:30 am to 10:45 pm.

[11] Center Street ends and SR 25 turns northwest to cross the Columbia River on the Northport Bridge, a steel cantilever span built in 1951.

[13][14] SR 25 began as a series of county roads connecting small communities on the Columbia River that were constructed between 1909 and 1912.

[18][19][20] SR 22 remained unchanged through a 1923 restructuring of the state road system,[21][22] but was extended north to the Canadian border at Boundary in 1931.

When Franklin D. Roosevelt Lake was created after the Grand Coulee Dam was built in 1941, the ferry was moved to higher ground.

In 1981, the Colville Confederated Tribes and United States Bureau of Indian Affairs began a new ferry service with the MV Columbian Princess and continues to the present.

SR 251 was a 10.86-mile-long (17.48 km) highway that ran from Northport,[34] paralleling the Columbia River and a rail line operated by Kettle Falls International Railway,[9] to the Canadian border at Boundary.

[30][36] Originally county roads until 1912,[16] the general route became part of the Inland Empire Highway from 1913 until removal from state maintenance in 1915.