Interstate 5 (I-5) which goes north/south west of the Cascade Mountain range.
I-84 goes east/west in the northern half of the state.
the major highways are #29 and#133
Road report hyw 58
The major north-south highways are I-75 and I-69. The major east-west are I-94 and I-96
I-95 is one of the well known highways.
They were and still are the major transportation routes.
There are two major Interstate highways in Oregon: Interstate 5 runs north and south from California to Washington west of the Cascade Mountain range. Interstate 84 runs east and west starting in Portland to Idaho along the Columbia River. Then there are multiple US highways, the major ones are as follows: Highway 101 runs north and south from California to Washington along the Oregon coastline. Highway 99 runs north and south from California to Washington, west of the Cascade Mountain range. Highway 97 runs north and south from California to Washington, east of the Cascade Mountain range. There are numerous US highways running east and west, among these are: Highway 30, 26, 22, 20 and others.
Highways link cities - there are no major cities in the northern part of Canada
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Maryland has a few major highways in it. Interstate 95 is one of the busiest highways in the country. It runs north and south. Also 70 and 83 run through the state.
Some major highways in Louisiana include I-10, I-20, I-49, and I-12. These interstates connect major cities like New Orleans, Baton Rouge, and Shreveport, and provide important transportation routes throughout the state.