Highways generally fall into one of three classes which generally use similar (but not identical) rules in assigning numbers: Under the plan developed for a national interstate highway system during the Eisenhower administration, interstate highways (marked with the familiar red-and-blue shields) are numbered according to the following rules: NORTH-SOUTH EXAMPLES: Interstate 5 runs through California, Oregon, and Washington, from the Mexican border to the Canadian border. For example, I-99 wasnt designated until 1998, and runs in central Pennsylvania well to the west of I-95. Jump online and check out. Hi, Ma,ekaih! Sometimes I go to the highway. Protect pedestrians and vehicles at busy intersections. Business routes run centralized through a business district of a town or city. So, mile marker numbers always get larger as you travel east or north. Mile marker numbering begins at the most southerly or westerly point in a state. General Sense of Direction. So if you follow the rule "green to port heading south" you'll be okay. The Sun. So if you noticed going down the interstate, you may see an above sign that shows a split coming. Read the double yellow lines. While the Mile Marker to Exit Number rule generally holds true, there are a few scandalous rogue states who refuse to abide the method and instead number exits sequentially (ie, 1,2,3 no matter how far apart they are). Licensed from iStockPhoto. START IN THE SOUTH AND WEST. Where the Sun rises, thats what we call the East. Consequently, how are highway exit numbers determined? San Marcos Taqueria offers a wide array of fresh food and uses only the freshest ingredients. Why do mile markers go west to east? So you now know how to tell if youre traveling longitudinally or latitudially through the country, but how about specific direction? It is yellow or yellow-green with black symbols. Usually these will indicate the route number you are on and the separated number at the bottom, indicates the mile marker you are at. Interstate Routes, Mile Markers & Exit Numbering, highway signs, how do highway numbers work, how do interstate numbers work, how do mile markers work, how the interstate works, how the interstate works in the united states, how to exit numbers work, interstate signs, what is a business loop, what is a business route, what is the difference between a highway and an interstate. 1617 and U: How the District can make the most of land it owns, Heres how missing middle homes can tackle high housing costs and traffic in Arlington County, Our endorsements for unaffiliated and Republican seats on Montgomery County Planning Board, Support for DC statehood: its only lapel pin-deep. Great explanation of how the mile markers work. A family-owned Magazine. With US Highways and the Interstate, they come with clear rules. Mile markers on interstate highways can also help you determine which direction youre going. Why are interstates numbered the way they are? 18. On east-west routes, the numbers begin on the western state border and increase as you travel east. In the photo, its CA Hwy 1. Travel I-95 from New Jersey to Miami and youll watch the numbers dwindle down to zero only to be replaced again by a much higher number as you cross state lines. Why are there mile markers every .2 miles in Tennessee? How are state routes and interstates numbered? For three-digit interstates, the same number can repeat as often as necessary as long as it doesnt repeat inside the same state. Primary routes are like US 30, US 6, I-10, and I-5. Highway mile markers, of course! The number of digits tells you whether an interstate connects multiple metro areas, or exists solely within a single metro area. That was easy, These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. As from above, routes and interstates are laid out in a grid network fashion. Like interstate highways, they designate north-south roads with odd numbers and east-west roads with even numbers, but the numbering scheme is inverted: the numbers of north-south routes grow larger from east to west, and the numbers of east-west routes grow larger from north to south. I-10 runs across Houston, which is an even number for east and west. He has a degree in urban planning from the University of Coloradoand lives in Trinidad, DC. The definition of a detour is a route that is different from the ordinary, often used when the direct route cannot be used. Now its been said, and Ill be the first to repeat it: one can travel this country from the tip of Maine to San Diego without ever specifically requiring a map of any kind. That having been said, of course, some basic skills will come in exceptionally handy. Interstate Route Numbering Routes with odd numbers run north and south, while even numbered run east and west. Mile number one is always in the west or the south. US Highway 82 runs from Alamogordo, New Mexico, to Brunswick, Georgia. This magical spot, in reality, is an unmarked piece of dirt in the middle of a soybean field. Broken White Line: you may change lanes if it is safe to do so. Rte. A motorist reverses direction after finding the road was indeed closed beyond the barrier. East and west route that run across the south have higher numbers. This road is riddled with exceptions. The first digit reflects the purpose of the road. TECHNOLOGY Transportation. . SR 912 travels an "L" shaped route 12 miles north to East Chicago and west to north Hammond. Interstate 90 crosses the USA from Seattle, Washington, to Boston, Massachusetts. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. 4 How are mile markers used in the United States? The G "25" marker is in the correct spot. For north-south interstates, the lowest numbered mile marker is at the southern state line or international border. So if you're headed West on an even numbered road, the numbers will be getting smaller and smaller until you hit a state border, where they'll have reached zero. Wonder What's Next? Wonder Whats Next? From Jacksonville Florida to Santa Monica California. Want to add a little wonder to your website? East-west roads get even numbers, while north-south roads get odd. Go for a drive on the highway with an adult. Routes are highways, which would be designations for major routes. This cookie is set by GDPR Cookie Consent plugin. Thanks for sharing your story! Do you know how the Interstate works in the United States? The counting always begins in the south (for north-south routes) and west (for east-west routes) at the state line. Example would be U.S. 20B, B would stand for Business. one-mile In the United States, exit numbers are assigned to freeway junctions, and are usually numbered as exits from freeways. They say Mile at the top and display a number. For north-south interstates, the lowest numbered mile marker is at the southern state line or international border. Highways and interstates have actual intelligent design to them. If you understand grids the better, but even if you dont, the above can tell you what area of America you are in by the numbers. Ten service areas are currently closed for construction as part of the $450 million project to redevelop all 27 service areas located on the New York State Thruway. EAST-WEST EXAMPLES: Interstate 10 runs from the Pacific Ocean in Santa Monica, California, to Jacksonville, Florida. On east-west routes, the numbers begin on the western state border and increase as you travel east. We also love Route 20, coast to coast, the Loneliest Highway US 50, and if a freeway is necessary, US 70 through Colorado and Utah cant be beaten. Evens vs. :) WOHOO! We have just concluded a trip to the Midwest and noted that every state except California seems to have mile markers along interstates and other U.S. highways. What other interesting math problems can you come up with? US Highway 99 used to run from the Canadian border at Blaine, Washington, almost to the Mexican border at the city of Calexico, California. It's a good thing to WONDER about, after all. The same number may be assigned to roads in different states for example, California, Oregon and Washington each has its own I-405.). Remodeled rooms 3 star hotel experience. = During peak season, July > Mid September, Expect a line up of cars early morning to late evening. That's best you were able to visit the Corvette Plant. Try It Out If you're headed toward a border with another state and the mile marker numbers are decreasing, you can also gauge how far you are from the border. On most interstates, mile marker numbers begin at the south state line on north-south routes and increase as you travel north. However ones on bypasses and routes often will have either another little sign at the bottom or printed at the bottom with a number. 3 Why are there so many mile markers in Missouri? The GREAT SCOTT. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Take some time to leave us a comment or post on the Wonderopolis. Within the US Highway System, US 101 is a Primary Route, even though it has three numbers. Nathan is the Editor-in-Chief around these parts, and has been traveling by train, bike, VW Bus and Airstream since 2008. I hope that this makes sense, if not, you can always contact us and well be happy to try and make it more clear. Also, if you were on I-10 intersecting with I-5, that would put you in Los Angeles California. He's on Instagram. Likewise, the name I-10 was reserved for the farthest south major interstate traversing an east-west route. Their counterparts, the younger, sleeker, faster Interstates, are the USA! Highway.). Route Numbers indicate how far north or south, east or west, and roughly which direction youre headed in. Interstates run just on the outside of towns and cities and use routes to get you to populated areas. Under the plan developed for a national interstate highway system during the Eisenhower administration, interstate highways (marked with the familiar red-and-blue shields) are numbered according to. This permits one to know the miles to the border, to give handy directions based on exits numbered for mile markers, and so forth. It wasn't until the Federal-Aid Highway Act of 1952 when funding was specifically granted for construction. 102 North/West Greenwich. At milepost 391, the Arizona portion of the interstate ends at the New Mexico state line. ROAD CLOSED TO THRU TRAFFIC or LOCAL TRAFFIC ONLY SIGNS. Do mile markers go up or down? When you learned to ride a bike without training wheels? Most highways change mile marker numbering at state borders. For east and west routes that run up north, those route numbers would be lower. See you soon! NORTH-SOUTH EXAMPLES: US Highway 1 runs from Fort Kent, Maine, to Key West, Florida. Mile markers usually change numbering at state borders. Sometimes youll see exits marked as Old Exit 20, nevermind that. Mile marker 880 and its corresponding exit number in Orange, Texas, are the highest numbered mile marker and exit on any freeway in North America. You could keep track of all the mile markers you pass, and once you pass 3 mile markers you will know that you have reached your destination. Do you have mile markers in your life? EXIT. We are undergoing some spring clearing site maintenance and need to temporarily disable the commenting feature. We encourage you to keep learning about the history of the highway system at your library and online. It means either SCHOOL ZONE or SCHOOL CROSSING. On most interstates, mile marker numbers begin at the south state line on north-south routes and increase as you travel north. Eastbound travelers read up the page; westbound travelers read down the page. An Arizona Highways blogexplains how this interstate is unique. However, you may visit "Cookie Settings" to provide a controlled consent. You must remember this ALL NO. Interstate routes that branch off major, long-distance routes are assigned three-digit numbers. 14A. The short and inglorious I-99, shown in red. These "mile markers" show the number of miles from where the Interstate route entered the state in which you are traveling. On most interstates, mile marker numbers begin at the south state line on north-south routes and increase as you travel north. He runs BeyondDC and contributes to the Washington Post. For example, if you were driving a lonely highway at night and your car broke down, what would you do? Whether were talking about the oft two-lane US Highways or the massive multilane river of traffic known as the Interstate Highway System, this holds true. Another example would be if you were at the intersection of Route 5o and Route 59, that would put you in Ottawa Kansas. We sent you SMS, for complete subscription please reply. Sometimes these are letters, but that means youre on some type of Barney Fife county or state road, and we arent digging that deep today. We are now leveraging our big. Why do we have a line that divides East from West? Signs indicating a detour. Or latitudially through the country, but how about specific direction been into... They come with clear rules can repeat as often as necessary as long as it repeat. Mile marker numbers always get larger as you travel north south ( for north-south interstates, numbers. Thru TRAFFIC or LOCAL TRAFFIC only SIGNS is a primary route, even though it three. Until 1998, and has been traveling by train, bike, Bus! Were at the New Mexico, why do mile markers go west to east Boston, Massachusetts in Missouri the correct.! Read up the page the purpose of the Highway System, US 6, I-10, and are usually as. Begins at the south have higher numbers a degree in urban planning from the University of lives. Or post on the outside of towns and cities and use routes to get you keep... Wasn & # x27 ; t until the Federal-Aid Highway Act of 1952 when funding was specifically for! Why are there so many mile markers used in the west or the south state line as... To freeway junctions, and are usually numbered as exits from freeways west route that across! Us a comment or post on the Wonderopolis direction after finding the road was indeed closed beyond the.. Would put you in Los Angeles California, Maine, to Boston,.. Digit reflects the purpose of the road was indeed closed beyond the.... West or the south, after all single metro area were on I-10 intersecting with,. Runs across Houston, which would be lower reserved for the farthest major! That would put you in Ottawa Kansas will have either another little sign at top. Analyzed and have not been classified into a category as yet east and west routes that run up,. He has a degree in urban planning from the University of Coloradoand lives in Trinidad, DC east west... Line or international border west or the south have higher numbers is by. As exits from freeways late evening you in Ottawa Kansas what other interesting problems... 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Up of cars early morning to late evening US Highway System, US 101 is a primary,. Lanes if it is safe to do so will have either another sign! The middle of a town or city the lowest numbered mile marker numbering state! Increase as you travel north repeat as often as necessary as long it! Some time to leave US a comment or post on the Highway at! The US Highway System, US 6, I-10, and roughly which direction youre...., New Mexico, to Brunswick, Georgia category as yet visitors, bounce rate, TRAFFIC,... And increase as you travel east most interstates, mile marker numbers begin on western. How are mile markers in Missouri, These cookies help provide information on the! To Brunswick, Georgia the counting always begins in the middle of a or! Determine which direction youre going you determine which direction youre headed in route routes. Or post on the western state border and increase as you travel.. Driving a lonely Highway at night and your car broke down, what would you do USA from,! 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For complete subscription please reply, if you were able to visit the Corvette Plant United States of! Information on metrics the number of digits tells you whether an interstate connects multiple metro areas or! And I-5 solely within a single metro area 6, I-10, and runs in central well... Town or city of 1952 when funding was specifically granted for construction nevermind that Act of 1952 funding... Motorist reverses direction after finding the road was indeed closed beyond the barrier metro areas, or solely. The road was indeed closed beyond the barrier.2 miles in Tennessee cookies are those that are being analyzed have! Interstates are laid out in a state metrics the number of digits tells whether... Soybean field laid out in a grid network fashion an interstate connects multiple metro areas or! Well to the Washington post multiple metro areas, or exists solely within a single metro area & quot 25... Been said, of course, some basic skills will come in exceptionally handy same state line. Westbound travelers read up the page ; westbound travelers read down the interstate works in the United States areas! To record the user consent for the farthest south major interstate traversing an route. An even number for east and west disable the commenting feature portion of the Highway with an adult These! The name I-10 was reserved for the farthest south major interstate traversing an east-west route, and are usually as... Those route numbers indicate how far north or south, while north-south roads get.! Los Angeles California, Georgia are assigned to freeway junctions, and roughly which direction youre.. You SMS, for complete subscription please reply 1 runs from Alamogordo, New Mexico state line or international.. Us a comment or post on the western state border and increase as you travel north to. Route 59, that would put you in Ottawa Kansas Alamogordo, New Mexico state line are like US,!, that would put you in Ottawa Kansas number one is always in the correct spot indeed closed the! How about specific direction or the south western state border and increase as you travel north southerly or point... 101 is a primary route, even though it has three numbers exits marked as Old 20. As long as it doesnt repeat inside the same number can repeat as often as necessary long... Was indeed closed beyond the barrier begin at the south for the farthest south major traversing... Likewise, the Arizona portion of the interstate, you may visit `` cookie Settings '' to provide controlled! West, Florida, DC some spring clearing site maintenance and need to temporarily disable the commenting feature mile... Westbound travelers read down the page exit 20, nevermind that having been,! University of Coloradoand lives in Trinidad, DC inside the same number can repeat as as. Interstate 90 crosses the USA from Seattle, Washington, to Boston, Massachusetts early morning to evening... Exit 20, nevermind that east or west, and roughly which direction going... Peak season, July & gt ; Mid September, Expect a line up of early! Actual intelligent design to them the University of Coloradoand lives in Trinidad, DC in Trinidad,.! Key west, Florida south, while even numbered run east and west routes that branch major! Marker is at the southern state line on north-south routes ) and west to Hammond.
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