I-90
Seattle-to-Boston route
I-90 is the longest Interstate highway in the United States, stretching roughly 3,100 miles from Seattle to Boston.
It crosses the northern tier of states through Montana, South Dakota, Minnesota, Wisconsin, Illinois, Indiana, Ohio, Pennsylvania, and New York.
Like other Interstate designations, the I- prefix distinguishes it from older U.S. routes: We took I-90 across South Dakota.
Major road for travel
- freewayHighway without tolls
- corridorEnclosed connecting walkway
- SeattlePacific Northwest metropolis
- BostonMassachusetts state capital
coast-to-coast · transcontinental · eastbound · westbound · mile marker · exit · interchange · junction
Pacific Northwest mountain range
- RockiesNorth American mountain chain
- Great PlainsCentral North American grassland
- Great LakesFive connected inland seas
- MidwestNorth-central American region
Montana · Idaho · Wyoming · South Dakota · Minnesota · Wisconsin · Illinois · Indiana
Hard road covering
- asphaltPetroleum-based paving material
- bridgeStructure spanning an obstacle
- tunnelEnclosed underground route
- overpassBridge spanning a road
construction · maintenance · lanes · median · shoulder · guardrail · signage · tolls
Extended pleasure drive
- cross-countryTraversing wide natural terrain
- drivingControlling a vehicle
- rest stopRoadside traveler facility
- truck stopRoadside facility for haulers
gas station · motel · scenery · mileage · journey · commute · detour · roadside
Carved presidential memorial
- Space NeedleSeattle's flying saucer tower
- Sears TowerRenamed Chicago high-rise
- SturgisDakota rally town
- Little Bighorn1876 Montana battle site
Erie Canal · Niagara · Lake Michigan · Columbia River · Fenway
highway
Major road for travel
Boston · coast-to-coast · transcontinental · eastbound · westbound · mile marker · exit · interchange · junction · tollway
Cascades
Pacific Northwest mountain range
- RockiesNorth American mountain chain
- Great PlainsCentral North American grassland
- Great LakesFive connected inland seas
Midwest · Montana · Idaho · Wyoming · South Dakota · Minnesota · Wisconsin · Illinois · Indiana · Ohio
pavement
Hard road covering
- asphaltPetroleum-based paving material
- bridgeStructure spanning an obstacle
- tunnelEnclosed underground route
overpass · construction · maintenance · lanes · median · shoulder · guardrail · signage · tolls · E-ZPass
road trip
Extended pleasure drive
- cross-countryTraversing wide natural terrain
- drivingControlling a vehicle
- rest stopRoadside traveler facility
truck stop · gas station · motel · scenery · mileage · journey · commute · detour · roadside · pit stop
Mount Rushmore
Carved presidential memorial
- Space NeedleSeattle's flying saucer tower
- Sears TowerRenamed Chicago high-rise
- SturgisDakota rally town
Little Bighorn · Erie Canal · Niagara · Lake Michigan · Columbia River · Fenway
- Capital DistrictAlbany, Troy, Schenectady, Bethlehem, Rotterdam
- Washington RoadsI-5, I-405
- Northern IllinoisRockford, Dixon, Freeport, Sterling, Rochelle
- highwayshighway, highways, freeway, freeways, expressway
- roadshighway, highways, road, freeway, roads
- Chicago infrastructureCTA, Chicago L, the L, L train, elevated trains