There are three major U.S. Interstate highways in Washington. They are I-5 (276.62 miles), I-82 (132.57 miles) and I-90 (297.52 miles).
Interstate X (I-X)
U.S. Route X (US X)
State Route X (SR x)
I-5, I-82, I-90 are the major interstates
I-205, I-405, I-605, I-705 are auxiliaries of I-5
I-182 is the auxiliary of I-82
There are three major U.S. Interstate highways in Washington. They are I-5 (276.62 miles), I-82 (132.57 miles) and I-90 (297.52 miles).
Three Interstate Highways transect Washington State. These include Interstate 82, Interstate 90, and Interstate 5. Interstate 90 crosses the entire state at a length of 297.52 miles.
The major highways in Washington are Highway 2, interstate 5 and interstate 90. there is also highway 405 in the Puget Sound.
There are several major highways in the state of Virginia. Some of the highways are U.S. Route 19, State Route 28, and State Route 39.
The major north-south highways are I-75 and I-69. The major east-west are I-94 and I-96
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The I5 runs straight through the state of Washington, linking Vancouver BC, Seattle, Portland, and onwards into California.
u.s. and state routes and interstates
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Major highways in the state of South Dakota include Interstate 90, running east and west across the state and Interstate 29, running north and south. Other major highways include: US Highways 12, 14, 16, 81, 83, 85, 212, 281, and 385
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.