This map was created by a user. They are federally maintained and adhere to the standards of any other signed interstate highway, but are officially part of the Eisenhower Interstate System only on paper. Today we'll go over some of these routes, and why they aren't signed as an Interstate. Basic information and facts for every route within the Eisenhower Interstate System. The 24th Annual Highway Report, based on data that states submitted to the federal government, ranks each state’s highway system in 13 categories, including traffic fatalities, pavement condition, congestion, spending per mile, administrative costs and more. This site has affiliate agreements with certain websites. There are 21 “secret” interstate routes. Twenty-four percent of all vehicle traffic is on the Interstate system. Interstate highways make up three percent of all roadway lane miles in Pennsylvania and have a combined length of 1,953 mi (3,143 km) within the state. Maybe they're waiting for an eastward extension of I-68, who knows. This practice is codified in Section 103(c)(1)(B)(ii), 23 U.S.C., which states , "Highways on the Interstate System in Alaska and Puerto Rico shall be designed in accordance with such geometric and construction standards as are adequate for current and probable future traffic demands and the needs of the locality of the highway." 2.0 National Defense as an Argument for the Interstate System After World War II, highway experts and proponents of the Interstate System often stressed the defense aspects of the system and superlatives were the norm. The road has a pretty long history, as it was first proposed to become part of I-68 in 1975. *Yes, it’s the Bret Michaels flavor, and no I don’t really support him. The Federal-aid highway program began in 1916 with that concept in mind, but it lacked a national focus. The Interstate Highway System includes highways outside the contiguous United States. For instance, Interstate 296 in Grand Rapids was first built in the 1950s, but has since had its signs removed and been taken off of the road maps of Michigan because it’s mostly encapsulated in the larger US 131. The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of freeways that forms part of the National Highway System in the United States. Interstate Highway Traffic and Road Conditions Reports. Most Interstate highway projects today are funded with a mix of federal, state and local funds. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Since I began learning about the Interstate System in my youth, the fact that there existed "hidden" Interstates fascinated me. Image: I-910 along Business US-90 in red. For the most part, we take our cross-country highways for granted. The 42,500 mile system then was envisioned for completion in 1980. I-H201 was initially signed as HI-78, but has been signed since 2004. Secret\" routes are stretches of state-maintained road given route numbers for tracking purposes. Once the road was fully brought up to Interstate Standards, AASHTO approved I-595 for the route, but Maryland chose not to sign the route. 47. This piece of legislation committed the federal government to build what became the 42,800-mile Eisenhower Interstate Highway System, which makes it … They are assigned one- or two-digit route numbers, whereas their associated "auxiliary" Interstate Highways receive three-digit route numbers. The entire route is signed as BL-15, which runs into the downtown area, and is not Interstate standard east of Fox Farm Rd. When the facts wander into automotive territory, we feel especially qualified to take on the drink giant. Image: Puerto Rico's Unsigned Interstates. In 1921, the focus shifted as Congress reshaped the program to restrict Federal-aid to a limited, designated system totaling no more than 7 percent of each State’s roads, with three-sevenths of this system being “interstate in character.” Up to 60 percent of the f… The sources I found about the unsigned interstates never seemed to agree on how many unsigned interstates there are, but there are reportedly at least 19. The proposed route will link Phoenix, Arizona with Las Vegas, Nevada initially and may someday extend northward to Reno. I-11 is one of the newest corridors designated in the Interstate Highway System. Image: Route of the unsigned I-595 between I-95/495 and MD-70. 3) Interstate 180 (Illinois) I-180 runs 13 miles from I-80 in Central Illinois to Hennepin, IL. This is generally the reasoning behind not numbering Interstate highways, as the vast majority of unsigned routes are less than four miles in length. Unfortunate Railroad History Preserved in a Cemete... Three miles of US-131 in Grand Rapids between I-96 and I-196 is actually unsigned I-296. While the plan’s […] If you’ve ever enjoyed a Snapple beverage, you’re probably aware of the fun trivia printed on the underside of the metal lids. The system extends throughout the contiguous United States and has routes in Hawaii, Alaska, and Puerto Rico. In the very early part of the last century, national highway policy was focused on getting farmers out of the mud and getting their produce to market. In 1972, Robert M. Salter, lead scientist with the Rand Corporation, announced during an interview with LA Times science writer George Getz, that a high speed system could be built using existing (1972) technologies. Read More On Snapple “Real Facts”: The Atlantic. At almost 20 miles in length, I-595 is about as long as the average 3-digit Interstate Highway, and two miles longer than I-97, which is by far the shortest 2-digit Interstate Highway at just 17 miles in length. Nonetheless, the designation occasionally referred to on Maryland's traffic information website, For more information on the rest of the Unsigned Interstate Highways, Interstate-Guide.com maintains a complete list of all the. In fact, when I looked up the fun fact, the first thing I discovered is that these are not “secret” highways, but rather unsigned interstates. The routes were meant for emergency evacuation and military transport as well as for commerce and commuting. The “Federal-Aid Highway Act” passed in June 1956 authorized the construction of a 41,000-mile network of interstate highways and allocated $26 billion to pay for them. It is the product of the pro-growth ambition of political and business leaders, and has empowered the ambition of real estate developers, big business, the technology industry and entrepreneurs. Start studying Unit 7: Interstate Highway System. Image. The unsigned interstates are anonymous simply because to sign them would confuse drivers. 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