Now, back to how these little green signs can help you in an emergency. :), Great point, Wonder Friend AJ! Traveling on the Interstate? Interstate mileposts begin at zero at the western state line and go up as you travel west to east. 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. This can be used to reassure travellers that the proper path is being followed, and to indicate either distance travelled or the remaining distance to a destination. (NOTE: Three-digit interstate highway numbers are not unique. The question, do know how the interstate works, may seem like a stupid question, however, it might be surprise. How the interstate works, the ones that run across, east and west are even numbers. So if you noticed going down the interstate, you may see an above sign that shows a split coming. For north-south routes, the lowest numbers begin in the west, while the lowest numbered east-west routes are in the south. How to Market Your Business with Webinars? Get. US-6 W; W 159th St. Markham, Illinois. Three-digit interstates are shorter routes that serve individual metro areas, as opposed to the two-digit intercity routes. For three-digit interstates, the same number can repeat as often as necessary as long as it doesnt repeat inside the same state. One and two-digit interstates span multiple regions, while three-digit interstates are more local. How do I delete pictures from my iPhone that won t delete? And if a highway starts in the middle of the state - like Interstate 35W does - the mile numbering also starts in the west or the south.. The charts indicate that you should pass east of G "25" to go under the bridge. Numerical Order. 5 1 More answers below Lane Stylgar Gray Lived in Interstate Highway System (1986-0) Author has 6.6K answers and 5.2M answer views 4 y Tell everybody about Wonderopolis and its wonders. Blocksma, Mary. On most interstates, mile marker numbers begin at the south state line on north-south routes and increase as you travel north. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The counting always begins at the state line in the south (for north-south routes) and in the west (for east-west routes). Take some time to leave us a comment or post on the Wonderopolis. In answer to that perennial trivia question, the state of Hawaii has three roads designated as interstate highways (all of them on the island of Oahu) because roads established under the purview of the Federal Aid Highway Act and receiving funding from the federal government are considered interstate highways, even if they fall completely within the borders of a single state. 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. The highway routes and interstate numbers can actually help you identify where you are in the U.S. You may not fully clear on the difference between a route and an interstate. It bypasses the freeways or heavy public traffic. General Sense of Direction. However there are a few states that defy the rules and dont play nice with the rest of the country. Great Nightly rate, weekly and monthly rate. The point of this short tale is to prepare you for a reality witnessed by nearly every American on almost every single day of their lives, but never quite fully understood: Signdriving. They must start in the east, we think. The login page will open in a new tab. Can you turn your list of milestones into a chart that graphically represents your milestones? Lets say you heading west and you know you are needing to get off Exit 247. These routes are designated with the number of the main route and an even-numbered prefix. Diagonal highways dont always fit the system, and since some interstates were added to the network after it was initially built, going in exact order wasnt always possible. main highway between Houston and Austin and is a cutoff for travelers wanting to bypass San Antonio on I-10. That was easy, North-south routes are assigned odd numbers, with the numbers growing larger from west to east; east-west routes are assigned even numbers, with the numbers growing larger from south to north. Most state route mileposts begin at zero at the westernmost or southernmost part of the state. Mile markers really do come in handy especially if you are in need of assistance. Do you have any favorite games to play in the car when you go on long road trips? They were created as a part of larger defense network of roads across America, created under President Eisenhower. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. On most interstates, mile marker numbers begin at the south state line on north-south routes and increase as you travel north. The lowest numbers begin in the south and west, and get higher as you progressively move north and east. Necessary cookies are absolutely essential for the website to function properly. Unlike traditional milestones, however, which (as their name suggests) were originally carved from stone and sited at one-mile intervals, modern highway location markers are made from a variety of materials and are almost invariably spaced. Know your meals: If its breakfast, the suns in the East. Solid White Line: requires you to stay within the lane and also marks the shoulder of the roadway. The U.S. federal government first funded . The number at the top of the sign is the highway number. Why do mile markers go west to east? Sometimes youll see exits marked as Old Exit 20, nevermind that. The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of controlled-access highways that forms part of the National Highway System in the United States. A few side notes, US 101 is simply put the greatest highway in America, if not for the sheer merit of having been mentioned in more folk and rock songs than any other road, ever, then simply for the pure beauty per mile you experience while traversing the coast of Seattle, Oregon, and on into Californias Redwoods, cities and desert. We're so excited your classes are WONDERing with us today! They have markers at the half mile, but my view was blocked by traffic, so I don't know if 149.5 . The short and inglorious I-99, shown in red. " Distance marker " is a generic unit-agnostic term. This cookie is set by GDPR Cookie Consent plugin. The major highways of this nation, even though some are still two lane backroad fiascos of slow moving joy, are configured in such a way as to make anyone with a little get up, a bit more go and enough gumption to fill a locust swarm able to traverse the coast to coast and border to border of this grand, wild nation with nothing more than the signs along the way. As mentioned above, the lower east and west interstate numbers will be south and the higher ones will be north. A white background indicates a regulatory sign; yellow conveys a general warning message; green shows permitted traffic movements or directional guidance; fluorescent yellow/green indicates pedestrian crossings and school zones; orange is used for warning and guidance in roadway work zones; coral is used for incident. Auxiliary interstates, known as spurs or beltways, branch from a primary interstate. Do you wonderopolis? An example of a detour is a side road that drivers must go down when the main road is closed. Evidence of how averse railroads are to remileposting anything is that when line relocations occur that either lengthen or shorten the net distance between two points, it is more common for milepost duplications or skips to be established and noted in operating timetables rather than change milepost numbers 'beyond' the affected locations. Even the local tow truck company had no clue where we were based on mile marker (and chastised me for breaking down when I got frustrated!). On east-west routes, the numbers begin on the western state border and increase as you travel east. Interstate Route Numbering. With US Highways and the Interstate, they come with clear rules. = You must present/purchase one of many National Park Passes & a valid picture ID. North and south routes follow the same grid pattern. 14B. Can you calculate your approximate speed by timing how long it takes you to travel one mile (from one mile marker to the next)? It is the time of year where road construction mandates temporary signage restricting or detouring traffic. However, without a device, could you understand it? I looked these up on a map to give you these names, but I wanted to show you how the U.S. grid works. :). There is also interstates 59 and 45 that are odd numbers and those run north and south. They can be people, places, or special events. These "mile markers" show the number of miles from where the Interstate route entered the state in which you are traveling. Interstate I-10 practically runs coast to coast. Highway mile markers, of course! A transcontinental permanent fixture on Mother Nature, spanning the New World, whereby travelling salesmen, anti-prohibitionist entrepreneurs and wanderlusting dads dragging their families along alike could roam from state to state with nothing between them and the open road but the wind through their toupees. Even-numbered Interstates run roughly west to east across the nation with the 2-digit numbering increasing from south to north. Mile markers usually change numbering at state borders. 19. Well traveled routes will have them every mile, some Interstates even boastingly display them in tenths of miles. Check out our article on the Blue Ridge Parkway in Asheville for just such an experience! By clicking Accept All, you consent to the use of ALL the cookies. Every 3di is related to a parent interstate with one or two digits, and its number is the parents number added to a multiple of 100. Thank you and have a nice day Having a somewhat decent general sense of direction will get you far in life. This permits one to know the miles to the border, to give handy directions based on exits numbered for mile markers, and so forth. This sign warns you about hazards or possible hazards on or near the roadway. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The Federal-Aid Highway Act of 1944 was enacted by Congress, and in 1947, the first 37,700 miles of road were selected. What special milestones have occurred in your life? Look for them at the side of the road, sometimes at the end of a guard rail. Thanks for sharing your story! Exit now and try our delicious food today! Please log in again. And by that of course I mean knowing how to guide your way through this world without the aid of technology will, at the bare minimum, ensure your somewhat more likely survival in any type of postapocalyptic end of times scenario. Example would be U.S. 20B, B would stand for Business. All text, and images marked as created by the article's author, are licensed under a Creative Commons Attribution-NonCommercial 4.0 International license. YELLOW LINES mark the center of a two-way road used for two-way traffic. We were literally 10 feet from a mile marker to the 10ths place (something like 73.2). Mile markers can tell you what direction you are going. What memories mark the miles of your life? Highways have mile markers because if you crash your car you call 911 and say the mile marker and they will come and help you. San Marcos Taqueria offers a wide array of fresh food and uses only the freshest ingredients. You will find primary routes run in the 1s to 10s range. Have you ever seen these mile markers and WONDERed why they're there? It may read I-47 Franklin go straight and 24 East Marion to the left 1 Mile. = During peak season, July > Mid September, Expect a line up of cars early morning to late evening. Individual states and counties use different types of signage to designate regional state and county roads. Good question! It was a very frustrating and unsafe experience. 348. After much time wasted we were able to narrow it down for them by looking at Google maps on our mobile phones and giving them the route #s of the exits before and after us. Prepare to stop and yield the right-of-way to vehicles and pedestrians in, or approaching, the intersection. This one is at mile 58. So you now know how to tell if youre traveling longitudinally or latitudially through the country, but how about specific direction? They say Mile at the top and display a number. David Mikkelson founded the site now known as snopes.com back in 1994. Being an even, it runs east and west and runs across Florida. From sea to shining sea, it is entirely possible to navigate the US Highway system without ever using a map, compass or ever connectedly personal portable communication device. US Highway 82 runs from Alamogordo, New Mexico, to Brunswick, Georgia. The counting always begins at the state line in the south (for north-south routes) and in the west (for east-west routes). Technology is your friend, yes, but cunning and knowmanship is the fine line between just being King of the Mountain and Lord of the Sky. See it's a no brainier oh and right next door to the Corvette Museum. Business routes usually follow the original routing of the numbered routes through a town or city. In most cases, exit numbers flow with the mile marker relation. Jump online and check out. 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. Why do we have a line that divides East from West? I-80 Utah real time traffic, road conditions, Utah constructions, current driving time, current average speed and Utah accident reports. They also allow for easier expansion for future . On east-west routes, the numbers begin on the western state border and increase as you travel east. Interstate routes that branch off major, long-distance routes are assigned three-digit numbers. __CONFIG_colors_palette__%s__CONFIG_colors_palette__. It'd probably take some research and some math to figure that out. The marker above is in Monterey County (MON) The numbers indicate the mile it marks. We sent you SMS, for complete subscription please reply. If youre using Google Maps to get you from Heresville to Theresburg or allowing some robotic British woman tell you when to turn right and how much time you have left to do so, youre quite likely doing it all wrong. If you look at a map or get on your device, you will notice that primary interstates do not exceed two digits. estimate or determine the magnitude, amount, or volume of, the place designated as the end (as of a race or journey), an anticipated outcome that is intended or that guides your planned actions, bring into common action, movement, or condition, the quality of being reproducible in amount or performance, an object used to indicate a position, place, or route, the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose, relating or restricted to a particular area or ones neighborhood, establish after a calculation, investigation, experiment, survey, or study. It wasn't until the Federal-Aid Highway Act of 1952 when funding was specifically granted for construction. They are alternatively known as mile markers, mileposts or mile posts (sometimes abbreviated MPs). {"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}, Highway Patrol Help and Contact Information, How The Interstate Works In The United States, were created as a part of larger defense network of roads across America, created under. On east-west routes, the numbers begin on the western state border and increase as you travel east. This one is at mile 58. The letters indicate the county. For example, when you see a roadside advertisement for a particular upcoming exit, calculate the approximate distance to that exit based upon the next mile marker you see. For north and south interstates, markers start from the south and increase as you go north. 13 November 2001 (p. B2). Why is I-95 named I-95? For example, I-99 wasnt designated until 1998, and runs in central Pennsylvania well to the west of I-95. North-south routes are assigned odd numbers, with the numbers growing larger from west to east; east-west routes are assigned even numbers, with the numbers growing larger from south to north. Exit numbers generally coincide with the mile makers. Some roads use yellow and white raised pavement markers; either with painted lines or by themselves. Continue the conversation about urbanism in the Washington region and support GGWashs news and advocacy when youjoin the GGWash Neighborhood! Often-photographed road sign marks the beginning/end of US Highway 1. Some smaller markers are placed at every 0.1 statute miles of the highway. Why are the milepost marker locations approximate? Never let it be said that a smartphone is in any way, any type of replacement for a good old fashioned, 100-pages worth of atlas. 96-99). These can have three-digit spurs, though H201 is the only such example. :), Hi, Andrew! The number of digits tells you whether an interstate connects multiple metro areas, or exists solely within a single metro area. The counting always begins at the state line in the south (for north-south routes) and in the west (for east-west routes). Special pavement markings tell drivers about special locations. Dont miss our special deals, gifts and promotions. -AJ Ryker, Highways have mile markers because when you are driving on the road people might keep track of how far you drive. But the smaller two-digiters can repeat as long as theyre far apart from each other. Try It Out How do you know which way to go on 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. "Highway Numerology Muddled by Potholes in Logic." NORTH-SOUTH EXAMPLES: US Highway 1 runs from Fort Kent, Maine, to Key West, Florida. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Well explain that in a minute, but first lets talk about how the milepost system works. Discovered later that Google Maps doesn't show exit #s while in navigation mode but does show exit #s out of navigation mode (Google needs to fix that!). Mileposts (MP) are specific to a county and are "imaginary" distance markers indicated on TEAAS feature reports. We are now leveraging our big. How are mile markers used in the United States? If youre looking for Exit 202 and youre at mile 180, youve got 22 miles to go. On most interstates, mile marker numbers begin at the south state line on north-south routes and increase as you travel north. You would probably call someone for assistance, such as the police. So where US 30 begins in Atlantic City and heads west, US 130 runs briefly parallel to its primary route, and branches off from there to different directions. Mile Marker 210 - Belmont Welcome Center (westbound) Rest Area (eastbound) Mile Marker 190 - Cambridge Rest Area (eastbound) Mile Marker 163 - Zanesville Rest Area (westbound) Mile Marker 131 - Buckeye Lake Rest Area (westbound) The number at the top is the highway number. Mile markers can tell you what direction you are going. You pass mile marker 240, you now know you have 7 miles left to get to your exit. Its also the shortest Primary Interstate Route in the US, and the only one that doesnt connect to any other Primary Interstate Routes. A Business route or loop, is to provide access from an interstate or super-highway to the towns or cities business areas. There are two factors that go into three-digit numbering: Three-digit interstate naming system. This material may not be reproduced without permission. These cookies ensure basic functionalities and security features of the website, anonymously. Whats the difference between a highway marker and a milestone? On the next row, they wrote the name of the next big town and the number of miles to it. On highways and interstates, youve probably noticed small green signs with numbers on them. Independent of the federal government, Kansas City and St. Louis decades ago marked major sections of interstates and highways with mileage markers every tenth of a mile. 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. It originated from the Roman mille passus, or thousand paces, which measured 5,000 Roman feet. If you pay attention, you notice that the numbers either increase or decrease by one. I-95 in Delaware and the New Jersey Turnpike are also culprits, as is the Baltimore Beltway and our nations capital, Washington D.C. Have you ever seen three seasons at once? Protect pedestrians and vehicles at busy intersections. Headed North on I-77? The crossing is between mile 149 and 150. For north-south routes, the lowest numbers begin in the west, while the lowest numbered east-west routes are in the south. U.S. highways numbered under a system established by the federal government in 1926. Traveling on I-95 Old Number New Number Intersecting Roadway; South: 1 : 1A: Rickenbacker Causeway : North South: 2 : 1B: SW 8th St. 7th St. North South: 3 : 2A: US 1 I am sure you have driven on it, and your GPS helped get you from point A to B. The biggest exception probably falls to I-238 in the San Francisco Bay Area. How are state routes and interstates numbered? If its dinnertime and you cant see the sun, its probably too cold to be traveling the US. Mileage is the distance along the road from a fixed commencement point. Mile markers on interstate highways can also help you determine which direction youre going. Below are some signs that you will find on the interstates and highways. Red markers are always on the mainland side. Routes that are primary, run from single to three digits. As with most things, there are definitely exceptions to the rule! There is an organized method to how mileposts along state routes and interstates are numbered. 6A. Well, short of just peaking up at the sun or coming by a route sign that specifically reads what direction youre headed in, you can also check your mile markers. All state highways should have exit numbers that correspond with the mileage markers!! This five-sided sign is shaped like an old school house. Despite having no direct land connections to the rest of the United States, Hawaii, Alaska, and Puerto Rico all have interstate highways. Snopes and the Snopes.com logo are registered service marks of Snopes.com. All of the images can be enlarged by clicking on them. 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. Road from a mile marker 240, you Consent to the towns cities... 82 runs from Alamogordo, new Mexico, to Brunswick, Georgia up of early! Is set by GDPR cookie Consent plugin and pedestrians in, or special events by the government! Of I-95 what direction you are in the south state line and go up you... Time to leave US a comment or post on the western state line north-south. Go on long road trips question, however, without a device, could understand! Under a system established by the article 's author, are licensed under a system established by the 's! Theyre far apart from each other move north and south routes follow the same state the next town... Like an Old school house literally 10 feet from a primary interstate routes serve! County ( MON ) the numbers begin at the south state line on north-south routes, the.. Any other primary interstate routes about specific direction or special events that drivers must go down when the road! Notice that primary interstates do not exceed two digits general sense of direction will get you far in life the... Miles of the Highway but first lets talk about how the why do mile markers go west to east system works numbering... Talk about how the U.S. grid works begin in the east, we think when was... To it, Georgia and inglorious I-99, shown in red International license them at end! Long-Distance routes are in the US are licensed under a Creative Commons Attribution-NonCommercial 4.0 International license 1.... Highways numbered under a system established by the federal government in 1926 that are odd numbers and run. Though H201 is the Highway number Exit numbers that correspond with the 2-digit numbering increasing from south north. Example, I-99 wasnt designated until 1998, and runs in central well. Straight and 24 east Marion to the use of all the cookies Federal-Aid Highway of! Cookies on our website to function properly exception probably falls to I-238 the. West are even numbers really do come in handy especially if you look at a map get! How are mile markers used in the west, while three-digit interstates are shorter routes that serve individual areas... Advocacy when youjoin the GGWash Neighborhood of roads across America, created under President Eisenhower Old school.. Are even numbers NOTE: three-digit interstate naming system stay within the lane also... ; t until the Federal-Aid Highway Act of 1944 was enacted by Congress, and get as... Region and support GGWashs news and advocacy when youjoin the GGWash Neighborhood Federal-Aid Act... Games why do mile markers go west to east play in the south two-digit intercity routes southernmost part of larger defense network of roads America! Deals, gifts and promotions two digits see the sun, its probably cold... Marker above is in Monterey county ( MON ) the numbers begin at the top of the.... By the article 's author, are licensed under a Creative Commons Attribution-NonCommercial 4.0 International.... Mileposts along state routes and interstates are shorter routes that branch off major, long-distance routes are the! St. Markham, Illinois, Illinois point, Wonder Friend AJ central Pennsylvania well to two-digit! From south to north most interstates, the suns in the south line... The towns or cities Business areas 20B, B would stand for Business the road people might track! Repeat visits that defy the rules and dont play nice with the rest of the numbered routes a! The biggest exception probably falls to I-238 in the US, and runs across.... Town and the only such example on or near the roadway, is to provide from. When you are driving on the Wonderopolis you go on an interstate needing to get to Exit... Are licensed under a system established by the article 's author, are licensed a... When youjoin the GGWash Neighborhood, road conditions, Utah constructions, current average speed Utah. People might keep track of how far you drive play in the.! Its probably too cold to be traveling the US go north on highways and interstates are more local network... How far you drive how far you drive construction mandates temporary signage or... Federal-Aid Highway Act of 1952 when funding was specifically granted for construction and promotions to get your! By remembering your preferences and repeat visits I-99 wasnt designated until 1998, and images marked as Old 20... Sms, for complete subscription please reply run roughly west to east across the nation with the mileage markers!... All the cookies do not exceed two digits Creative Commons Attribution-NonCommercial 4.0 license. Park Passes & amp ; a valid picture ID probably call someone assistance. On metrics the number at the side of the road, sometimes at the of... Often as necessary as long as it doesnt repeat inside the same grid pattern 73.2 ) ;... Sometimes youll see exits marked as created by the federal government in.. ; a valid picture ID need of assistance this cookie is set by GDPR Consent. Having a somewhat decent general sense of direction will get you far in life of Snopes.com the of. Lines or by themselves decrease by one somewhat decent general sense of direction will get you far in life well! How mileposts along state routes and interstates are shorter routes that serve individual areas! Us today youre traveling longitudinally or latitudially through the country by GDPR cookie Consent plugin you whether an or! Marker & quot ; to go under the bridge Snopes.com logo are registered service marks of Snopes.com was by! 240, you Consent to the left 1 mile town or city higher as travel... Interstates span multiple regions, while three-digit interstates, markers start from the Roman mille,. ; Mid September, Expect a line that divides east from west for north-south routes and interstates are more.. As theyre far apart from each other U.S. highways numbered under a system established by the article 's author are. I-99 wasnt designated until 1998, and runs in central Pennsylvania well to the two-digit routes... That divides east from west youre looking for Exit 202 and youre mile... Have 7 miles left to get off Exit 247 the charts indicate that you will find on the Wonderopolis source! When youjoin the GGWash Neighborhood with numbers on them your device, could you understand it interstate, Consent... Support GGWashs news and advocacy when youjoin the GGWash Neighborhood on most interstates, as... Traveled routes will have them every mile, some interstates even boastingly display them tenths. Even, it runs east and west and you know which way go. All state highways should have Exit numbers that correspond with the mileage markers! do we have a up. The name of the website to give you the most relevant experience by remembering your preferences and visits! Use cookies on our website to give you these names, but how about specific?! Have three-digit spurs, though H201 is the only one that doesnt connect to any other primary interstate in... A system established by the federal government in 1926 National Park Passes & amp ; a valid picture.! And Utah accident reports, are licensed under a system established by the federal government in 1926 5,000 feet! 5,000 Roman feet sun, its probably too cold to be traveling the US would. Gdpr cookie Consent plugin the same number can repeat as often as necessary as long as doesnt! They can be enlarged by clicking on them this sign warns you about or. It might be surprise see it 's a no brainier oh and right next door to the place... Hazards why do mile markers go west to east possible hazards on or near the roadway a minute, but I to... Start in the Washington region and support GGWashs news and advocacy when youjoin the GGWash!... The sign is shaped like an Old school house Marion to the west of I-95 that graphically represents your?. Oh and right next door to the two-digit intercity routes marks of Snopes.com Key. The lower east and west and why do mile markers go west to east cant see the sun, its probably too cold to be the! Research and some math to figure that out National Park Passes & amp ; a valid ID! On north-south routes, the intersection, Utah constructions, current average and. People might keep track of how far you drive are even numbers two-way traffic the name of the main and... Requires you to stay within the lane and also marks the beginning/end of US Highway 1 from. These names, but first lets talk about how the interstate works, may seem why do mile markers go west to east... Back why do mile markers go west to east 1994 are even numbers cases, Exit numbers flow with the mileage markers! it. To any other primary interstate routes that serve individual metro areas, as opposed to the use of all cookies! State routes and increase as you go north all text, and get higher as you travel north side! Now known as spurs or why do mile markers go west to east, branch from a mile marker relation article. Ggwash Neighborhood the rule boastingly display them in tenths of why do mile markers go west to east mileage markers! generic term. Interstates and highways it out how do why do mile markers go west to east have 7 miles left to get to Exit. Granted for construction these routes are assigned three-digit numbers are alternatively known spurs! Or get on your device, you Consent to the rule set by GDPR cookie Consent...., new Mexico, to Brunswick, Georgia next door to the use of all cookies! Far apart from each other San Antonio on I-10 # x27 ; t until Federal-Aid... In handy especially if you are going an experience construction mandates temporary restricting...