147-669: Interstate 95 ( I-95 ) is an Interstate Highway running along the East Coast of the United States from Miami, Florida , north to the Canadian border at Houlton, Maine . In Maryland , the route is a major highway that runs 110.01 miles (177.04 km) diagonally from southwest to northeast, entering from the District of Columbia and Virginia at the Woodrow Wilson Bridge over
294-522: A concurrency or overlap. For example, I‑75 and I‑85 share the same roadway in Atlanta ; this 7.4-mile (11.9 km) section, called the Downtown Connector , is labeled both I‑75 and I‑85. Concurrencies between Interstate and US Highway numbers are also allowed in accordance with AASHTO policy, as long as the length of the concurrency is reasonable. In rare instances, two highway designations sharing
441-539: A park and ride and a weigh station . It is marked as exit 27 on both Interstates. Running northeast, I-95, still eight lanes wide, passes through Beltsville , interchanging with MD 212 near the community. The highway, completed in 1971, runs through undeveloped land to the interchange with the Intercounty Connector toll road ( MD 200 ) and Konterra Drive ( MD 206 ) before interchanging with MD 198 just west of Laurel . Passing over
588-518: A partial cloverleaf interchange with MD 150 (Eastern Avenue). By 1976, I-95 was under construction east of US 1 Alt. and south of MD 150. By 1981, I-95 was completed as far as I-395, and by 1984, with the construction of the Fort McHenry Tunnel quite advanced, the route was open as far as MD 2 west of the Patapsco and Boston Street/O'Donnell Street east of the Patapsco. With
735-637: A 28-year-old brevet lieutenant colonel, accompanied the trip "through darkest America with truck and tank," as he later described it. Some roads in the West were a "succession of dust, ruts, pits, and holes." As the landmark 1916 law expired, new legislation was passed—the Federal Aid Highway Act of 1921 (Phipps Act). This new road construction initiative once again provided for federal matching funds for road construction and improvement, $ 75 million allocated annually. Moreover, this new legislation for
882-408: A 4-2-4 configuration (four southbound general purpose lanes, two northbound express lanes, and four northbound general purpose lanes) to extend the northbound express lanes to milepost 77. Section 200 is a 15-mile (24 km) segment from milepost 70 to exit 85 ( MD 22 ). This segment is also currently eight lanes wide (a 4–4 configuration) as far as exit 77 ( MD 24 ) and
1029-413: A bill in the mail to the vehicle owner. Video tolling users pay an additional 50-percent surcharge on their tolls. The toll rates along the express toll lanes vary by time of day and the day of the week. Peak travel times, which is southbound during weekday mornings, northbound during weekday evenings, and both directions on weekend afternoons, have the highest rates. Off-peak travel times, which occur during
1176-476: A change in the numbering system as a result of a new policy adopted in 1973. Previously, letter-suffixed numbers were used for long spurs off primary routes; for example, western I‑84 was I‑80N, as it went north from I‑80 . The new policy stated, "No new divided numbers (such as I-35W and I-35E , etc.) shall be adopted." The new policy also recommended that existing divided numbers be eliminated as quickly as possible; however, an I-35W and I-35E still exist in
1323-580: A national road grid with the passage of the Federal Aid Highway Act of 1921 . In 1926, the United States Numbered Highway System was established, creating the first national road numbering system for cross-country travel. The roads were state-funded and maintained, and there were few national standards for road design. United States Numbered Highways ranged from two-lane country roads to multi-lane freeways. After Dwight D. Eisenhower became president in 1953, his administration developed
1470-599: A new island platform and waiting room at New Carrollton station. Until 2003, some Acela Express trains stopped at New Carrollton. In October 2015, the Palmetto began stopping in New Carrollton. In May 2018, Metro announced an extensive renovation of platforms at twenty stations across the system. The Metro station was closed from May 28, 2022 to September 5, 2022, as part of the summer Platform Improvement Project, which also affected stations north of Stadium-Armory on
1617-570: A new route, was canceled in July 1983. The third is encountered at exit 60 and is the site of the southwestern terminus of the Windlass Freeway, a relief route for US 40 (part of the route was eventually built and is today part of I-695 ). The interchange that exists at this site is in partial use, serving the Moravia Road freeway spur; like the other two inner-city locations, ramp stubs mark
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#17328511249941764-576: A numbering scheme in which primary Interstates are assigned one- or two-digit numbers, and shorter routes which branch off of longer ones are assigned three-digit numbers where the last two digits match the parent route. The Interstate Highway System is partially financed through the Highway Trust Fund , which itself is funded by a combination of a federal fuel tax and transfers from the Treasury's general fund. Though federal legislation initially banned
1911-481: A proposal for an interstate highway system, eventually resulting in the enactment of the Federal-Aid Highway Act of 1956 . Unlike the earlier United States Numbered Highway System, the interstates were designed to be all freeways, with nationally unified standards for construction and signage. While some older freeways were adopted into the system, most of the routes were completely new. In dense urban areas,
2058-540: A report called Toll Roads and Free Roads , "the first formal description of what became the Interstate Highway System" and, in 1944, the similarly themed Interregional Highways . The Interstate Highway System gained a champion in President Dwight D. Eisenhower, who was influenced by his experiences as a young Army officer crossing the country in the 1919 Motor Transport Corps convoy that drove in part on
2205-574: A result, I-95 in Maryland had multiple conflicting sequences of exit numbers. In the mid-1980s, the exits were renumbered according to a statewide, mileage-based numbering system , so that they now range from exit 2 ( I-295 north) on the Capital Beltway to exit 109 ( MD 279 ) on the John F. Kennedy Memorial Highway. To allow a seamless connection between the John F. Kennedy Memorial Highway and
2352-409: A single digit prefixed to the two-digit number of its parent Interstate Highway. Spur routes deviate from their parent and do not return; these are given an odd first digit. Circumferential and radial loop routes return to the parent, and are given an even first digit. Unlike primary Interstates, three-digit Interstates are signed as either east–west or north–south, depending on the general orientation of
2499-453: A single exotically named location. Having turned east, the route now runs straight toward the Delaware state line, passing under MD 213 north of Elkton with no access offered and then reaching the exit 109 interchange with MD 279 , which provides a direct route into Elkton and Newark, Delaware . I-95's run through Maryland comes to an end quickly after that exit, and it crosses
2646-458: A small shelter and an asphalt platform served by a few Penn Central (later Conrail ) commuter trains between Washington and Baltimore. The second, Capital Beltway station , sat just inside the Capital Beltway . Opened on March 16, 1970, it was served by Penn Central (later Amtrak) Metroliners . On November 20, 1978, the Washington Metro opened its New Carrollton station, along with
2793-769: A speed limit of 45 mph (70 km/h) because it is a parkway that consists of only one lane per side of the highway. On the other hand, Interstates 15, 80, 84, and 215 in Utah have speed limits as high as 70 mph (115 km/h) within the Wasatch Front , Cedar City , and St. George areas, and I-25 in New Mexico within the Santa Fe and Las Vegas areas along with I-20 in Texas along Odessa and Midland and I-29 in North Dakota along
2940-456: A speed limit of 80 mph (130 km/h). Other Interstates in Idaho, Montana, Oklahoma, South Dakota and Wyoming also have the same high speed limits. In some areas, speed limits on Interstates can be significantly lower in areas where they traverse significantly hazardous areas. The maximum speed limit on I-90 is 50 mph (80 km/h) in downtown Cleveland because of two sharp curves with
3087-467: A suggested limit of 35 mph (55 km/h) in a heavily congested area; I-70 through Wheeling, West Virginia , has a maximum speed limit of 45 mph (70 km/h) through the Wheeling Tunnel and most of downtown Wheeling; and I-68 has a maximum speed limit of 40 mph (65 km/h) through Cumberland, Maryland , because of multiple hazards including sharp curves and narrow lanes through
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#17328511249943234-566: A three-quarter interchange with Eastern Avenue, which share southbound access ramps via Kane Street) in lieu of I-895. It interchanges with the Moravia Road freeway spur next to the Baltimore city line, where ramp stubs were once planned for an unbuilt portion of the Windlass Freeway, then connects with US 40 before narrowing to six lanes and merging with I-895 just after exiting Baltimore into northeastern Baltimore County. From 2009 to 2015, new gray gantries were installed that displayed signs in
3381-517: A true toll route as it passes through Susquehanna State Park before crossing the Susquehanna River on the Millard E. Tydings Memorial Bridge . The bridge crosses between bluffs high above the river valley, and is posted with warning signs: "Subject to Crosswinds". The highway now enters Cecil County . Just beyond the bridge is an all-electronic toll gantry at Perryville , where tolls are collected in
3528-650: Is a joint Washington Metro , MARC , and Amtrak station just outside the city limits of New Carrollton , Prince George's County , Maryland located at the eastern end of the Metro's Orange Line . The station will also serve as the eastern terminus of the Purple Line , currently under construction, and is adjacent to the Capital Beltway . Beneath the Metro station platform, a waiting room serves Amtrak's Northeast Regional , Vermonter , and Palmetto trains, as well as MARC's Penn Line trains. The New Carrollton Rail Yard
3675-534: Is also commonly believed the Interstate Highway System was built for the sole purpose of evacuating cities in the event of nuclear warfare . While military motivations were present, the primary motivations were civilian. The numbering scheme for the Interstate Highway System was developed in 1957 by the American Association of State Highway and Transportation Officials (AASHTO). The association's present numbering policy dates back to August 10, 1973. Within
3822-555: Is also operated by the MDTA, at the Baltimore city line. Starting out eight lanes wide at the junction with I-895, after three miles (4.8 km), I-95 once again intersects with I-695 in Rosedale at what was a unique double-crossover interchange. Within this interchange, the carriageways of I-95 narrowed to six lanes and crossed over each other, thereby putting through traffic on the left within
3969-454: Is currently six lanes wide (a 3–3 configuration) between exits 77 and 85. Like Section 100, this segment will be widened into a 4–2–2–4 configuration as far as exit 80 ( MD 543 ). Between exits 80 and 85, the remainder will likely be widened from a 3–3 configuration to a 4–4 configuration. While the MDTA has not yet finalized plans for this segment, the MD ;24 interchange
4116-426: Is nearby. Greyhound , a nationwide intercity bus company, also stops at the station on routes serving Richmond , Washington , Philadelphia , New York City , Pittsburgh , and points beyond. The New Carrollton station is the third station in the area to serve rail traffic. The first station, Lanham , 0.75 miles (1.21 km) north of the current station, opened in the 1870s. By the late 1960s, it consisted of
4263-525: Is to have the highway route extend from Tamaulipas , Mexico to Ontario , Canada. The planned I-11 will then bridge the Interstate gap between Phoenix, Arizona and Las Vegas, Nevada , and thus form part of the CANAMEX Corridor (along with I-19 , and portions of I-10 and I-15 ) between Sonora , Mexico and Alberta , Canada. Political opposition from residents canceled many freeway projects around
4410-587: The Baltimore 10-D Interstate System , approved in 1962. In this plan, I-95 would run east–west to the north of Fort McHenry , similarly to the above proposal, but would have run along the southern edge of the CBD, passing to the north of Federal Hill and cutting through the historic Fell's Point neighborhood. After crossing the Inner Harbor on another low bridge, it would have followed the Boston Street corridor, crossing
4557-564: The Baltimore–Washington Parkway (unsigned MD 295 ) in the northeastern edge of the park. Just after the Baltimore–Washington Parkway, the two routes interchange with MD 201 , which connects to the southern terminus of the Baltimore–Washington Parkway at US 50 ( New York Avenue ) near the D.C. line. Now turned fully west, the beltway runs through the northern edge of College Park , interchanging with
Interstate 95 in Maryland - Misplaced Pages Continue
4704-576: The Cheverly , Deanwood , Landover , and Minnesota Avenue stations, marking the completion of 7.4 miles (11.9 km) of Metro track northeast from the Stadium–Armory station . In August 1982, Conrail commuter trains (later AMDOT, then the MARC Penn Line ) began stopping at Capital Beltway, replacing stops at Lanham and Landover. On October 30, 1983, Amtrak and AMDOT moved from Capital Beltway to
4851-570: The Clearview font which was being adopted statewide, replacing the old brown gantries and Highway Gothic signs, some of which had button copy . In 2017, the high-mast poles, which were also brown, were taken down and replaced with new gray ones. The John F. Kennedy Memorial Highway portion of I-95, a toll facility operated by the MDTA , begins at the end of the Harbor Tunnel Thruway (I-895), which
4998-603: The College Park Interchange . Instead, it would have exited D.C. at New Hampshire Avenue ( MD 650 ), following the Northeast Freeway , and, after passing through Northwest Branch Park , junctioned I-495 at the College Park Interchange, integrating seamlessly with the existing segment of I-95 at that interchange. This route was canceled in 1977, and I-95 rerouted, after the D.C. government canceled
5145-474: The Dallas–Fort Worth metroplex in Texas, and an I-35W and I-35E that run through Minneapolis and Saint Paul , Minnesota, still exist. Additionally, due to Congressional requirements, three sections of I-69 in southern Texas will be divided into I-69W , I-69E , and I-69C (for Central). AASHTO policy allows dual numbering to provide continuity between major control points. This is referred to as
5292-538: The Federal Aid Highway Act of 1956 into law. Under the act, the federal government would pay for 90 percent of the cost of construction of Interstate Highways. Each Interstate Highway was required to be a freeway with at least four lanes and no at-grade crossings. The publication in 1955 of the General Location of National System of Interstate Highways , informally known as the Yellow Book , mapped out what became
5439-603: The Grand Forks area have higher speed limits of 75 mph (120 km/h). As one of the components of the National Highway System , Interstate Highways improve the mobility of military troops to and from airports, seaports, rail terminals, and other military bases. Interstate Highways also connect to other roads that are a part of the Strategic Highway Network , a system of roads identified as critical to
5586-827: The Interstate Highway System , or the Eisenhower Interstate System , is a network of controlled-access highways that forms part of the National Highway System in the United States . The system extends throughout the contiguous United States and has routes in Hawaii , Alaska , and Puerto Rico . In the 20th century, the United States Congress began funding roadways through the Federal Aid Road Act of 1916 , and started an effort to construct
5733-515: The Lincoln Highway , the first road across America. He recalled that, "The old convoy had started me thinking about good two-lane highways... the wisdom of broader ribbons across our land." Eisenhower also gained an appreciation of the Reichsautobahn system, the first "national" implementation of modern Germany's Autobahn network, as a necessary component of a national defense system while he
5880-634: The MD ;100 interchange, providing access to Ellicott City , US 29 , and I-70 to the west and the Baltimore–Washington Parkway (MD 295) and I-97 to the east. Just beyond this interchange, I-95 encounters three more of its auxiliary routes within Maryland: I-895 , which splits from I-95 within Patapsco Valley State Park , just south of the Patapsco River (and at which point
6027-590: The MDTA and run by Areas USA. Both service areas offer bus parking, free Wi-Fi, restrooms, a Kids Korner seating area, an outdoor seating area, multiple fast-food restaurants , retail stores, and Sunoco as the fuel offering. Maryland House , opened in 1963, is at milepost 81.9 in Harford County. It was later remodeled in 1987, and wing additions were added in 1989–1990. It was closed on September 15, 2012, and demolished for reconstruction, reopening on January 16, 2014. Chesapeake House , opened in 1975 (after
Interstate 95 in Maryland - Misplaced Pages Continue
6174-769: The North Central Freeway , which would have linked to the Northeast Freeway at its southern end and carried I-95 deeper into D.C., connecting to the Inner Loop . The part of I-95 that was completed from downtown Washington, D.C., to the Springfield Interchange in Springfield, Virginia , was then redesignated as I-395 . Several proposals were made during the 1940s and 1950s for an East–West Expressway through Baltimore. After nine different proposals were floated,
6321-532: The Patuxent River just south of the T. Howard Duckett Dam , the route enters Howard County and promptly has an interchange with MD 216 . North of the MD 216 interchange, the route encounters its first rest area in the state of Maryland, with separate facilities for the northbound and southbound lanes. Continuing northeast, I-95 intersects MD 32 at a modified directional cloverleaf interchange . Within this interchange, I-95 grade-separates, with
6468-533: The Potomac River , northeast to the Delaware state line near Elkton . It is the longest Interstate Highway within Maryland and is one of the most traveled Interstate Highways in the state, especially between Baltimore and Washington, D.C. , despite alternate routes along the corridor, such as the Baltimore–Washington Parkway , U.S. Route 1 (US 1), and US 29 . I-95 also has eight auxiliary routes in
6615-637: The Springfield Interchange in Virginia. While the College Park Interchange was completed, the Northeast Freeway was never built, resulting in highway lanes coming to an abrupt end on the south end of the interchange. After the project to complete I-95 through the District of Columbia was canceled, I-95 was rerouted onto the Capital Beltway in 1977. The portion of I-95 inside the beltway in Northern Virginia and
6762-499: The US Department of Defense . The system has also been used to facilitate evacuations in the face of hurricanes and other natural disasters. An option for maximizing traffic throughput on a highway is to reverse the flow of traffic on one side of a divider so that all lanes become outbound lanes. This procedure, known as contraflow lane reversal , has been employed several times for hurricane evacuations. After public outcry regarding
6909-464: The US Highways , which increase from east to west and north to south). This numbering system usually holds true even if the local direction of the route does not match the compass directions. Numbers divisible by five are intended to be major arteries among the primary routes, carrying traffic long distances. Primary north–south Interstates increase in number from I-5 between Canada and Mexico along
7056-489: The West Coast to I‑95 between Canada and Miami, Florida along the East Coast . Major west–east arterial Interstates increase in number from I-10 between Santa Monica, California , and Jacksonville, Florida , to I-90 between Seattle, Washington , and Boston, Massachusetts , with two exceptions. There are no I-50 and I-60, as routes with those numbers would likely pass through states that currently have US Highways with
7203-542: The Woodrow Wilson Bridge , briefly cross the southern tip of the District of Columbia (over water), and touch down in Prince George's County west of Forest Heights . I-95/I-495 immediately encounter the southern terminus of I-295 , known as the Anacostia Freeway, a route that serves downtown Washington, D.C. , and connects to the originally planned alignment of I-95 through Washington D.C., I-395 . Just beyond I-295
7350-696: The central business district (CBD). The route would have met two other freeways—the Jones Falls Expressway and the Southwest Expressway—at a four-way interchange in the southeast edge of the CBD; I-95 would have followed the Southwest Expressway, and met both I-70N and I-83 (on the Jones Falls Expressway) at this interchange. I-70N and I-83 would have terminated at the interchange, while I-95 would have turned east and followed
7497-427: The Baltimore city line as far as exit 55 (Key Highway), the route was maintained by the city of Baltimore. Between exits 55 and 57 (Boston Street/O'Donnell Street) the route, traversing the Fort McHenry Tunnel , was maintained by the MDTA . Between exit 57 and the Baltimore city line the route was again maintained by the city of Baltimore. Now, between the southern Baltimore city line (near exit 49,
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#17328511249947644-402: The Congress Hotel in Chicago. In the plan, Mehren proposed a 50,000-mile (80,000 km) system, consisting of five east–west routes and 10 north–south routes. The system would include two percent of all roads and would pass through every state at a cost of $ 25,000 per mile ($ 16,000/km), providing commercial as well as military transport benefits. In 1919, the US Army sent an expedition across
7791-433: The Delaware state line, becomes the Delaware Turnpike, and soon reaches the Newark mainline toll plaza (in 2012, the MDTA installed signs prior to and at the MD 279 interchange informing motorists of the Delaware toll plaza ahead). Similar to what was done on the between the beltways segment, new lighting projects have replaced the original high-mast lights (which were also mercury vapor) with conventional streetlights at
7938-431: The District of Columbia was designated as I-395 . The eastern half of the Capital Beltway was renumbered from I-495 to I-95. In 1991, the I-495 designation was restored on the eastern half of the beltway, numbered concurrently with I-95 as part of an effort to provide more consistent numbering and directional indicators on the Capital Beltway. The College Park Interchange was modified in late 1986 to allow free movement along
8085-537: The East–West Expressway out of the CBD, along the Boston Street corridor and out toward east Baltimore, intersecting the Harbor Tunnel Thruway near today's exit 62. The Southwest Expressway would have cut through Federal Hill and crossed the Inner Harbor on a fixed bridge with 50 feet (15 m) of vertical navigational clearance. All these proposed routes would have required extensive right-of-way acquisition and clearance. The above routings were eventually further refined and modified and eventually became part of
8232-401: The Harbor Tunnel Thruway near to where it does today, then followed the existing I-95 alignment out of the city. The highway would have junctioned I-70N a mile (1.6 km) to the northwest of the Inner Harbor, near the eastern terminus of the now-defunct I-170 ; it would have met I-83 in the northeastern corner of the CBD. This routing was little different from the routings proposed in 1960 and
8379-487: The I-95 express toll lanes was part of the $ 1.1-billion (equivalent to $ 1.39 billion in 2023) I-95 Improvement Project, which included $ 756 million (equivalent to $ 958 million in 2023) in highway and safety improvements along eight miles (13 km) of I-95 from the I-895 interchange to just north of White Marsh Boulevard (MD 43) in northeast Baltimore. Originally, there were several changes in jurisdiction over maintenance of Baltimore's segment of I-95. North of
8526-407: The Interstate Highway System. Assisting in the planning was Charles Erwin Wilson , who was still head of General Motors when President Eisenhower selected him as Secretary of Defense in January 1953. Some sections of highways that became part of the Interstate Highway System actually began construction earlier. Three states have claimed the title of first Interstate Highway. Missouri claims that
8673-424: The Interstate Highway program. The Interstates of Alaska and Puerto Rico are numbered sequentially in order of funding without regard to the rules on odd and even numbers. They also carry the prefixes A and PR , respectively. However, these highways are signed according to their local designations, not their Interstate Highway numbers. Furthermore, these routes were neither planned according to nor constructed to
8820-435: The MD 152 and MD 155 interchanges, but new high-masts were installed from the Perryville toll plaza to MD 222. Additionally, there are now high-mast lights at the northern I-695 interchange in Rosedale to match its southern counterpart in Halethorpe (although the ones in Halethorpe were removed by 2018); those replaced the conventional streetlights that had existed within the area. I-95 has express toll lanes in
8967-433: The MD 4 interchange, the beltway runs through Glenarden , interchanging with MD 202 , US 50 /unsigned I-595 , and MD 450 , the latter route offering access to New Carrollton station serving Washington Metro 's Orange Line , MARC Train 's Penn Line , and Amtrak 's Northeast Corridor railroad line and the New Carrollton area. Turning northwest, the beltway enters Greenbelt Park , intersecting
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#17328511249949114-731: The MDTA issued its results for Section 100, the southernmost section. There may be the future consideration of replacing New York City with the much closer Philadelphia as the control city on I-95 north, north of Baltimore, as I-95 is fully completed between Philadelphia and New York City. Section 100 is an eight-mile (13 km) segment of the John F. Kennedy Memorial Highway that runs between exit 62 ( I-895 ) and milepost 70. This segment used to be just eight lanes wide (a 4–4 configuration) and carries approximately 165,000 vehicles per day (expected to increase to 225,000 vehicles per day by 2025). This segment has been expanded to 12 lanes (a 4–2–2–4 configuration), with
9261-475: The Old Mountain Road bridge and will relocate the park-and-ride lot just south of the older facility and will be accessed through a roundabout. The project is expected to be complete by 2026. Section 300 is a three-mile (4.8 km) segment from exit 77 to exit 80. Plans for its widening are described above. Interstate Highway [REDACTED] The Dwight D. Eisenhower National System of Interstate and Defense Highways , commonly known as
9408-460: The Orange Line. Shuttle buses and free parking were provided at the closed stations. On September 10, 2022, Blue Line trains started serving the station due to the 14th Street bridge shutdown as a part of the Blue Plus service. The service ended on May 7, 2023 with the reopening of the Yellow Line . The Purple Line light rail system will begin at New Carrollton and run west to Bethesda . The line will connect to Washington Metro stations on
9555-432: The Red and Green lines. The system is under construction as of 2022 and is scheduled to open in 2027. At New Carrollton, the Northeast Corridor consists of three tracks. The westernmost two tracks (Tracks 2 and 3) have an island platform between them, with Track 1 having no platform. To the east of the Amtrak platform is the Metro platform, serving the Orange Line . Bus loops and parking lots are located on both sides of
9702-506: The US to determine the difficulties that military vehicles would have on a cross-country trip. Leaving from the Ellipse near the White House on July 7, the Motor Transport Corps convoy needed 62 days to drive 3,200 miles (5,100 km) on the Lincoln Highway to the Presidio of San Francisco along the Golden Gate . The convoy suffered many setbacks and problems on the route, such as poor-quality bridges, broken crankshafts, and engines clogged with desert sand. Dwight Eisenhower , then
9849-631: The United States, including: In addition to cancellations, removals of freeways are planned: The American Association of State Highway and Transportation Officials (AASHTO) has defined a set of standards that all new Interstates must meet unless a waiver from the Federal Highway Administration (FHWA) is obtained. One almost absolute standard is the controlled access nature of the roads. With few exceptions , traffic lights (and cross traffic in general) are limited to toll booths and ramp meters (metered flow control for lane merging during rush hour ). Being freeways , Interstate Highways usually have
9996-439: The access roadway to the Greenbelt station serving Washington Metro's Green Line and MARC Train's Camden Line and US 1 . Beyond the US 1 interchange, I-95 encounters its own route at the College Park Interchange and separates from I-495 within this interchange. I-495 continues west, alone, on the Capital Beltway to I-270 , while I-95 turns north onto its own planned alignment. The interchange includes access to
10143-413: The act was signed, and paving started September 26, 1956. The state marked its portion of I-70 as the first project in the United States completed under the provisions of the new Federal-Aid Highway Act of 1956. The Pennsylvania Turnpike could also be considered one of the first Interstate Highways, and is nicknamed "Grandfather of the Interstate System". On October 1, 1940, 162 miles (261 km) of
10290-446: The cancelation of I-95 inside of the Capital Beltway. The unnamed section between the Capital Beltway to north of Baltimore was completed in various stages between 1964 and 1985, while the northeastern section from Baltimore to the Delaware state line, known as the John F. Kennedy Memorial Highway (named after the former US president, John F. Kennedy ), was the first section completed, opening to traffic in 1963. A rebuild of this section
10437-399: The cancellation of the Somerset Freeway . This situation was remedied when the construction of the Pennsylvania Turnpike/Interstate 95 Interchange Project started in 2010 and partially opened on September 22, 2018, which was already enough to fill the gap. However, I-70 remains discontinuous in Pennsylvania , because of the lack of a direct interchange with the Pennsylvania Turnpike at
10584-601: The center lanes designated as express toll lanes . In addition, the interchange between the John F. Kennedy Memorial Highway and the Baltimore Beltway at exit 64 has been rebuilt into a more orthodox stack interchange , removing the left entrances and exits as well as the unique carriageway crossovers on I-95 (the carriageway crossovers on I-695 there remained, but those have since been removed as well). The interchange at exit 67 ( MD 43 ) has been significantly modified from its former cloverleaf configuration, and
10731-406: The choice of routing destroyed many well-established neighborhoods, often intentionally as part of a program of " urban renewal ". In the two decades following the 1956 Highway Act, the construction of the freeways displaced one million people, and as a result of the many freeway revolts during this era, several planned Interstates were abandoned or re-routed to avoid urban cores. Construction of
10878-461: The city of Baltimore . Traveling northbound, the first interchange encountered is the College Park Interchange , exit 27. This was the intended site of the northern crossing of I-95 and I-495 and the northern end of the Northeast Freeway . South of here, I-95 was to enter D.C. on the Northeast Freeway, continue on the North Central Freeway and connect seamlessly to the portion of I-95 in downtown Washington that had been completed from there to
11025-540: The city's department of planning published a proposal of its own in 1960. The route in the proposal would have started out as I-70N (as it was known then) and run due east through vast city parkland before picking up the small piece of freeway that was constructed within the Franklin Street–Mulberry Street corridor, and then crossing the city to the north of the Inner Harbor on an elevated viaduct within
11172-650: The city. In some locations, low speed limits are the result of lawsuits and resident demands; after holding up the completion of I-35E in St. Paul, Minnesota , for nearly 30 years in the courts, residents along the stretch of the freeway from the southern city limit to downtown successfully lobbied for a 45 mph (70 km/h) speed limit in addition to a prohibition on any vehicle weighing more than 9,000 pounds (4,100 kg) gross vehicle weight . I-93 in Franconia Notch State Park in northern New Hampshire has
11319-401: The collection of tolls, some Interstate routes are toll roads , either because they were grandfathered into the system or because subsequent legislation has allowed for tolling of Interstates in some cases. As of 2022 , about one quarter of all vehicle miles driven in the country used the Interstate Highway System, which has a total length of 48,890 miles (78,680 km). In 2022 and 2023,
11466-497: The construction and improvement of highways. The nation's revenue needs associated with World War I prevented any significant implementation of this policy, which expired in 1921. In December 1918, E. J. Mehren, a civil engineer and the editor of Engineering News-Record , presented his "A Suggested National Highway Policy and Plan" during a gathering of the State Highway Officials and Highway Industries Association at
11613-407: The contiguous United States, primary Interstates—also called main line Interstates or two-digit Interstates—are assigned numbers less than 100. While numerous exceptions do exist, there is a general scheme for numbering Interstates. Primary Interstates are assigned one- or two-digit numbers, while shorter routes (such as spurs, loops, and short connecting roads) are assigned three-digit numbers where
11760-400: The daytime outside of peak travel times, have lower rates, with the overnight hours having the lowest rates. Just as in Delaware, the northern segment of I-95 in Maryland has service areas in the median that serve both directions of traffic. This dates back to its days as a two-state toll highway. Between the Delaware line and the Baltimore city line, two service areas are available, owned by
11907-512: The direct (tunnel) routes through Baltimore (such as vehicles either carrying hazardous materials or exceeding the tunnel clearance heights) was encouraged to use the eastern half of I-695, which crossed the Patapsco River via the Francis Scott Key Bridge ; it is now detoured onto the western half of the beltway, with I-95 being available to all other through traffic. When this part of I-95 opened to traffic in 1971, all interchanges in
12054-618: The discontinuity, but they have been blocked by local opposition, fearing a loss of business. The Interstate Highway System has been expanded numerous times. The expansions have both created new designations and extended existing designations. For example, I-49 , added to the system in the 1980s as a freeway in Louisiana , was designated as an expansion corridor, and FHWA approved the expanded route north from Lafayette, Louisiana , to Kansas City, Missouri . The freeway exists today as separate completed segments, with segments under construction or in
12201-448: The dissemination of public information. As a result, the 2005 evacuation of New Orleans, Louisiana, prior to Hurricane Katrina ran much more smoothly. According to urban legend , early regulations required that one out of every five miles of the Interstate Highway System must be built straight and flat, so as to be usable by aircraft during times of war. There is no evidence of this rule being included in any Interstate legislation. It
12348-492: The eastern end of the concurrency near Breezewood . Traveling in either direction, I-70 traffic must exit the freeway and use a short stretch of US 30 (which includes a number of roadside services) to rejoin I-70. The interchange was not originally built because of a legacy federal funding rule, since relaxed, which restricted the use of federal funds to improve roads financed with tolls. Solutions have been proposed to eliminate
12495-450: The economy. Not just as a public works measure, but for future growth. Clay's committee proposed a 10-year, $ 100 billion program ($ 1.13 trillion in 2023), which would build 40,000 miles (64,000 km) of divided highways linking all American cities with a population of greater than 50,000. Eisenhower initially preferred a system consisting of toll roads , but Clay convinced Eisenhower that toll roads were not feasible outside of
12642-488: The existing, largely non-freeway, United States Numbered Highways system. By the late 1930s, planning had expanded to a system of new superhighways. In 1938, President Franklin D. Roosevelt gave Thomas MacDonald , chief at the Bureau of Public Roads, a hand-drawn map of the United States marked with eight superhighway corridors for study. In 1939, Bureau of Public Roads Division of Information chief Herbert S. Fairbank wrote
12789-426: The federal government, Interstate Highways are owned by the state in which they were built. With few exceptions , all Interstates must meet specific standards , such as having controlled access, physical barriers or median strips between lanes of oncoming traffic, breakdown lanes , avoiding at-grade intersections , no traffic lights , and complying with federal traffic sign specifications. Interstate Highways use
12936-427: The final opening of the tunnel on November 23, 1985, I-95 was finally completed within the city of Baltimore. Originally, the toll plaza at the north end of the Fort McHenry Tunnel was to be removed after the city of Baltimore repaid its share of the construction costs of the tunnel. However, the MDTA lobbied successfully to keep the toll plaza in place to prevent a traffic problem on I-95 within Baltimore. Despite
13083-507: The first three contracts under the new program were signed in Missouri on August 2, 1956. The first contract signed was for upgrading a section of US Route 66 to what is now designated Interstate 44 . On August 13, 1956, work began on US 40 (now I-70) in St. Charles County. Kansas claims that it was the first to start paving after the act was signed. Preliminary construction had taken place before
13230-594: The first time sought to target these funds to the construction of a national road grid of interconnected "primary highways", setting up cooperation among the various state highway planning boards. The Bureau of Public Roads asked the Army to provide a list of roads that it considered necessary for national defense. In 1922, General John J. Pershing , former head of the American Expeditionary Force in Europe during
13377-542: The highest speed limits in a given area. Speed limits are determined by individual states. From 1975 to 1986, the maximum speed limit on any highway in the United States was 55 miles per hour (90 km/h), in accordance with federal law. Typically, lower limits are established in Northeastern and coastal states, while higher speed limits are established in inland states west of the Mississippi River . For example,
13524-542: The highly populated coastal regions. In February 1955, Eisenhower forwarded Clay's proposal to Congress. The bill quickly won approval in the Senate, but House Democrats objected to the use of public bonds as the means to finance construction. Eisenhower and the House Democrats agreed to instead finance the system through the Highway Trust Fund , which itself would be funded by a gasoline tax. In June 1956, Eisenhower signed
13671-607: The highway now designated I‑70 and I‑76 opened between Irwin and Carlisle . The Commonwealth of Pennsylvania refers to the turnpike as the Granddaddy of the Pikes, a reference to turnpikes . Milestones in the construction of the Interstate Highway System include: The initial cost estimate for the system was $ 25 billion over 12 years; it ended up costing $ 114 billion (equivalent to $ 425 billion in 2006 or $ 618 billion in 2023 ) and took 35 years. The system
13818-628: The highway was widened from four to six lanes in 1972), is at milepost 97 in Cecil County. It was closed and demolished in January 2014 following the reopening of the Maryland House and reopened on August 5, 2014. A rest area is located in Howard County , between Baltimore and Washington, D.C. Unlike the two service areas farther north, which are located in the median, this rest area is located on
13965-454: The inefficiency of evacuating from southern Louisiana prior to Hurricane Georges ' landfall in September 1998, government officials looked towards contraflow to improve evacuation times. In Savannah, Georgia , and Charleston, South Carolina , in 1999, lanes of I-16 and I-26 were used in a contraflow configuration in anticipation of Hurricane Floyd with mixed results. In 2004, contraflow
14112-499: The interchange area until 2018 when two new lanes were taken from the left shoulders. The interchange would have been a three-way freeway-to-freeway interchange, with a full complement of ramps provided for local access to and from Boston Street and O'Donnell Street, to and from both Interstates. Of the two planned Interstate terminuses, I-83's terminus was the first to be abandoned, with the connecting highway segment being cancelled in September 1982; I-70's terminus, later redesignated as
14259-426: The interchange at exit 62 was also reconfigured so that I-95 is now the straight-ahead route instead of I-895, thus eliminating the need for southbound I-95 traffic to weave to the right and cross over. The project cost $ 1.1 billion (equivalent to $ 1.39 billion in 2023). It began in 2006 and was completed in 2014. The remainder of the section between Exit 67 and milepost 70 is currently being widened to
14406-421: The interchange nexus, allowing left exit ramps and left entrance ramps to accommodate four of the eight movements in lieu of flyovers. Beyond the interchange, both sets of carriageways crossed over each other again and resumed right-hand running. As part of the upgrades to I-95 to accommodate express toll lanes in this area, this interchange was replaced with a more conventional four-level stack; all exits are now on
14553-431: The last two digits match the parent route (thus, I-294 is a loop that connects at both ends to I-94 , while I-787 is a short spur route attached to I-87 ). In the numbering scheme for the primary routes, east–west highways are assigned even numbers and north–south highways are assigned odd numbers. Odd route numbers increase from west to east, and even-numbered routes increase from south to north (to avoid confusion with
14700-521: The latter route offering access to Fort McHenry and an escape route for hazardous material traffic. I-95 encounters the Fort McHenry Tunnel south of Fort McHenry. The tunnel, containing eight lanes, curves underneath the Northwest Harbor and emerges in the Canton neighborhood of Baltimore, quickly encountering the all-electronic toll plaza and connector ramps that lead to and from Keith Avenue. After
14847-536: The main access route into the central business district, I-395 . I-95 also interchanges with MD 295 at the northern terminus of the Baltimore–Washington Parkway (and the southern terminus of Russell Street, with ramps to the transitioning roads and from the terminating ones) within the I-395 interchange, which is almost completely elevated over the middle branch of the Patapsco River . After interchanging with both routes, I-95 interchanges with MD 2 and Key Highway ,
14994-476: The mainline bridges built to grade-separate I-95 and the exit ramps to and from I-70, several ramp stubs, a few grassy abutments. An incomplete flyover bridge once existed as well, but was later demolished. Narrow shoulders through the interchange area show that I-95 narrowed to six lanes but was restriped to widen the highway. While this interchange was left incomplete, the existing exit 50, built with extensive collector–distributor lanes due to its proximity to
15141-450: The mainline. Some auxiliary highways do not follow these guidelines, however. The Interstate Highway System also extends to Alaska , Hawaii , and Puerto Rico , even though they have no direct land connections to any other states or territories. However, their residents still pay federal fuel and tire taxes. The Interstates in Hawaii, all located on the most populous island of Oahu , carry
15288-686: The maximum speed limit is 75 mph (120 km/h) in northern Maine, varies between 50 and 70 mph (80 and 115 km/h) from southern Maine to New Jersey, and is 50 mph (80 km/h) in New York City and the District of Columbia. Currently, rural speed limits elsewhere generally range from 65 to 80 miles per hour (105 to 130 km/h). Several portions of various highways such as I-10 and I-20 in rural western Texas, I-80 in Nevada between Fernley and Winnemucca (except around Lovelock) and portions of I-15 , I-70 , I-80 , and I-84 in Utah have
15435-687: The median between the I-895 merge in northern Baltimore to just north of MD 43 in White Marsh, with two express toll lanes in each direction. In addition to access to and from I-95 at both ends, the express toll lanes have a southbound exit and northbound entrance with I-895, a southbound exit and northbound entrance with Moravia Road via I-895, and a northbound exit and southbound entrance with MD 43. The express toll lanes utilize all-electronic tolling ; tolls are collected by E-ZPass or video tolling , which uses automatic license plate recognition and sends
15582-422: The northbound carriageway passing over MD 32 and the southbound carriageway passing under MD 32, allowing left exits from both of the latter's carriageways to merge into the left lanes of I-95 without conflict. North of this unusual interchange, I-95 encounters MD 175 , the main access route into Columbia , at a less-radical directional cloverleaf interchange. After the MD 175 interchange comes
15729-512: The northbound direction only. There are no southbound tolls on the highway, but southbound truck traffic may need to stop at a nearby weigh station . At the northern end of the plaza is exit 93 for MD 222 in Perryville, before continuing through Cecil County toward the Delaware state line. (Until the 1980s, there were tolls at the southbound exits and northbound entrances, at the Perryville and North East interchanges.) Still paralleling
15876-545: The northern shore of the Chesapeake Bay , I-95's carriageways split apart again to encounter another service area, Chesapeake House , that is accessible from both directions. Now past the northern tip of the bay, north of Elk Neck State Park , the route encounters MD 272 , which provides access to the towns of North East and Rising Sun . The "North East Rising Sun" exit off I-95 has been read by some drivers, including children's writer Katherine Paterson , as referring to
16023-404: The number of fatalities on the Interstate Highway System amounted to more than 5,000 people annually, with nearly 5,600 fatalities in 2022. The United States government's efforts to construct a national network of highways began on an ad hoc basis with the passage of the Federal Aid Road Act of 1916 , which provided $ 75 million over a five-year period for matching funds to the states for
16170-435: The official Interstate Highway standards . On one- or two-digit Interstates, the mile marker numbering almost always begins at the southern or western state line. If an Interstate originates within a state, the numbering begins from the location where the road begins in the south or west. As with all guidelines for Interstate routes, however, numerous exceptions exist. New Carrollton station New Carrollton station
16317-561: The original Interstate Highway System was proclaimed complete in 1992, despite deviations from the original 1956 plan and several stretches that did not fully conform with federal standards . The construction of the Interstate Highway System cost approximately $ 114 billion (equivalent to $ 618 billion in 2023). The system has continued to expand and grow as additional federal funding has provided for new routes to be added, and many future Interstate Highways are currently either being planned or under construction. Though heavily funded by
16464-703: The original ones at the I-195/MD 166 interchange. South of Baltimore , I-95 is maintained by the Maryland State Highway Administration ; north of the southern Baltimore city line, I-95 changes jurisdiction to the Maryland Transportation Authority (MDTA). Continuing on its northeasterly track, the route intersects US 1 Alternate (US 1 Alt.) just beyond the city line. I-95's interchange with US 1 Alt. incorporates stubs and unused embankments that would have been used for
16611-399: The planned eastern terminus of I-70 within Baltimore (later planned as the southern terminus of I-595, though the freeway was later canceled and that designation was moved to US 50 east of Washington ). Continuing past this unbuilt interchange, I-95 intersects Washington Boulevard, a local city street (with ramps to the southbound side and from the northbound side), before encountering
16758-465: The planned eastern terminus of I-70 , the planned southern terminus of I-83 , and the planned southern terminus of the Windlass Freeway . All three unbuilt interchanges incorporate interchanges with local roads. The first is located near exit 50 in Baltimore; it is the site of the planned eastern terminus of I-70 within the city. The only remnants of the interchange that remain in situ today are
16905-633: The planning phase between them. In 1966, the FHWA designated the entire Interstate Highway System as part of the larger Pan-American Highway System, and at least two proposed Interstate expansions were initiated to help trade with Canada and Mexico spurred by the North American Free Trade Agreement (NAFTA). Long-term plans for I-69 , which currently exists in several separate completed segments (the largest of which are in Indiana and Texas ),
17052-411: The prefix H . There are three one-digit routes in the state ( H-1 , H-2 , and H-3 ) and one auxiliary route ( H-201 ). These Interstates connect several military and naval bases together, as well as the important communities spread across Oahu, and especially within the urban core of Honolulu . Both Alaska and Puerto Rico also have public highways that receive 90 percent of their funding from
17199-595: The right, and I-95's carriageways no longer cross over one another; a similar project also eliminated the crossovers on I-695. At this junction, southbound vehicles that cannot use either tunnel are redirected onto the western half of I-695, as its eastern half has been severed by the collapse of the Francis Scott Key Bridge. Continuing to the northeast, parallel with the Chesapeake Bay , the route encounters MD 43 near White Marsh . After passing through Gunpowder Falls State Park , and into Harford County ,
17346-547: The road enters southwestern Baltimore County ); I-195 and MD 166 near Catonsville , a short spur to Baltimore/Washington International Airport ; and I-695 near Halethorpe , the Baltimore Beltway, a full-circle beltway around Baltimore that offers a full freeway bypass of the city and that connects to I-70, I-83 , and I-97. Before its collapse in March 2024 , northbound traffic not authorized to make use of either of
17493-510: The route encounters the MD 22 interchange in Aberdeen , providing access to Aberdeen Proving Ground . South of Susquehanna State Park , I-95 encounters the southern end of the remaining tolled portion of the highway at the MD 155 interchange, providing access to Havre de Grace and US 40 . (Until the 1980s, there were tolls to enter I-95 southbound and exit it northbound in Harford County.) North of this interchange, I-95 becomes
17640-491: The route has interchanges with MD 152 north of Joppatowne , then with MD 24 , providing access to Bel Air and Edgewood . Within the MD 24 interchange, I-95 narrows to six lanes and remains this wide to the Delaware border. Just beyond the MD 543 interchange, I-95's carriageways split apart to provide space for the Maryland House service area accessible from both directions. Beyond Maryland House,
17787-500: The route's inclusion in the Interstate Highway System in the mid-1950s, the construction of the Baltimore and Capital beltways had diverted most of the state funds that would have been used to build it. To relieve traffic on US 40 , it was decided to finance construction using a bond issue. The Maryland State Roads Commission, the predecessor to the MDTA , floated $ 73 million (equivalent to $ 563 million in 2023) in revenue bonds to provide funds to start construction of
17934-404: The route, which began in January 1962. Completed in 1963, the 48-mile (77 km) Northeast Expressway and the adjoining 11-mile (18 km) Delaware Turnpike were dedicated by President John F. Kennedy , Delaware Governor Elbert N. Carvel , and Maryland Governor J. Millard Tawes in a ceremony at the state line on November 14, 1963. Eight days after dedicating the toll road, President Kennedy
18081-524: The route, without regard to the route number. For instance, I-190 in Massachusetts is labeled north–south, while I-195 in New Jersey is labeled east–west. Some looped Interstate routes use inner–outer directions instead of compass directions, when the use of compass directions would create ambiguity. Due to the large number of these routes, auxiliary route numbers may be repeated in different states along
18228-419: The same numbers, which is generally disallowed under highway administration guidelines. Several two-digit numbers are shared between unconnected road segments at opposite ends of the country for various reasons. Some such highways are incomplete Interstates (such as I-69 and I-74 ) and some just happen to share route designations (such as I-76 , I-84 , I‑86 , I-87 , and I-88 ). Some of these were due to
18375-503: The same roadway are signed as traveling in opposite directions; one such wrong-way concurrency is found between Wytheville and Fort Chiswell , Virginia, where I‑81 north and I‑77 south are equivalent (with that section of road traveling almost due east), as are I‑81 south and I‑77 north. Auxiliary Interstate Highways are circumferential, radial, or spur highways that principally serve urban areas . These types of Interstate Highways are given three-digit route numbers, which consist of
18522-411: The shoulders, with separate facilities for each direction of travel. This rest area also features only restrooms, a tourist information area, and vending machines, in contrast to the full food and fuel options at the two service areas farther north. Under the original plans for I-95 in Maryland, the route would not have followed the eastern half of the Capital Beltway from the Woodrow Wilson Bridge to
18669-436: The site of the ramps to and from the unbuilt freeway. Due to the heavy use of this route by commuters and through traffic, the MDTA has begun the process of significantly expanding the highway to increase its capacity. The expansion plans are divided into short, individual sections; in 2001, the MDTA began public studies to determine the best way to expand the highway to meet current and future needs. After four years of study,
18816-457: The southern I-695 interchange) and the northern Baltimore city line, the route is maintained entirely by the MDTA. Maryland state highway police force and the authority's own police force share police duties on this segment. Additionally, the city of Baltimore pays the MDTA to maintain I-95 within the city limits. I-95 has at least four incomplete interchanges along its route, with three located within
18963-529: The state, the most of any state along the I-95 corridor. Portions of the highway, including the Fort McHenry Tunnel and the Millard E. Tydings Memorial Bridge , are tolled . From the Woodrow Wilson Bridge to the community of College Park , it follows a portion of the Capital Beltway , completed in 1964 and numbered as I-95 in 1977. Prior to 1977, the route was intended to go on a new highway through Washington, D.C.; however, public opposition caused
19110-481: The stretch had high-mast lighting (with mercury vapor lights ), but, beginning in 2010, these were replaced with lower-mounted conventional streetlights. However, the MD 200 and southern I-895 interchanges (which opened in 1973 as part of an extension from its original terminus at US 1) now have high-mast lights (with high-pressure sodium lights, same as those within Baltimore), and new LED high-masts replaced
19257-561: The then-unnumbered Harbor Tunnel Thruway, a partial interchange was constructed for I-95 to continue south into Baltimore. However, this meant that I-95 had to enter from and exit to the right, as evidenced by a southbound flyover ramp; a construction project corrected the problem in 2009 so that I-95 would proceed straight through the interchange. Express toll lanes were built from the I-895 merge in northern Baltimore to just north of MD 43. The lanes opened Saturday, December 6, 2014, after more than eight years of construction. Construction of
19404-478: The toll plaza, I-95 encounters the Boston Street / O'Donnell Street interchange, which also incorporates stubs and other unused infrastructure planned to be used for the southern terminus of I-83 ; I-95 also passes over I-895 within the interchange area, with no access between the two routes, then runs into east Baltimore, providing local access to various city streets (a northbound-only exit to Dundalk Avenue and
19551-408: The transition from the I-95 corridor and the Capital Beltway without requiring the use of exit ramps. Today, all parts of the interchange are in regular use. The southern end of the interchange now serves as a park and ride commuter lot. The other three interchanges are located in the city of Baltimore, a sign of the many successful freeway revolts that accompanied the construction of the 3-A System:
19698-422: The two routes interchange with Maryland Route 210 (MD 210), a major north–south route into southern D.C. The two Interstates continue along the Capital Beltway and have interchanges with various local highways such as MD 5 (Branch Avenue) and MD 4 ( Pennsylvania Avenue ) on either side of Andrews Air Force Base , which the beltway travels very close to near its northern edge. Turning north past
19845-495: The unbuilt interchange, stands as a more visible sign of what was planned. Today, exit 50 connects US 1 Alt. to I-95. The second is located near exit 57, just to the north of the Fort McHenry Tunnel , and is the site of the planned southern terminus of I-83. Like I-70's terminus, the remnants here consist mainly of ramp stubs and unused bridges. This interchange, like exit 50, also serves Boston Street and O'Donnell Street , and also narrowed to six lanes within
19992-490: The war, complied by submitting a detailed network of 20,000 miles (32,000 km) of interconnected primary highways—the so-called Pershing Map . A boom in road construction followed throughout the decade of the 1920s, with such projects as the New York parkway system constructed as part of a new national highway system. As automobile traffic increased, planners saw a need for such an interconnected national system to supplement
20139-716: Was assassinated in Dallas . As a result, both the Northeast Expressway and Delaware Turnpike were renamed the John F. Kennedy Memorial Highway in his honor in December 1963. Between 1963 and 1993, the John F. Kennedy Memorial Highway was a tolled facility for the entire length of the roadway in both directions. The mainline toll plaza is situated just north of the Millard E. Tydings Memorial Bridge in Perryville . The southbound toll plaza
20286-476: Was also universally disliked. By 1969, the design concept team, a multidiscipline group assembled in 1966 by the city government to help design freeway routings that would not disrupt the city's fabric, the 10-D System had been replaced by the Baltimore 3-A Interstate and Boulevard System . In the 3-A system, I-95 was shifted south onto the Locust Point peninsula and eventually constructed there. Originally, I-95
20433-413: Was begun in 2006, and is underway; as of 2022, several miles of express toll lanes have been added to I-95 north of Baltimore, with further widening of the roadway planned through to the Delaware state line. I-95 enters the state of Maryland concurrently with I-495 , the Capital Beltway. From Alexandria, Virginia , the roadways, five lanes in either direction, travel together over the Potomac River on
20580-541: Was employed ahead of Hurricane Charley in the Tampa, Florida area and on the Gulf Coast before the landfall of Hurricane Ivan ; however, evacuation times there were no better than previous evacuation operations. Engineers began to apply lessons learned from the analysis of prior contraflow operations, including limiting exits, removing troopers (to keep traffic flowing instead of having drivers stop for directions), and improving
20727-457: Was improved, with the interchange improvement project completed in 2009. The segment between mileposts 70 and 79 is currently being widened to a 4-2-4 configuration, which will extend the current northbound express lanes to just south of MD 543. The MD 152 and MD 24 interchanges will be reconstructed along with multiple overpasses and underpasses. The reconstruction of the MD 152 interchange had demolished
20874-647: Was planned to cross the Patapsco River on a 180-foot-high (55 m) bridge, but opposition to this crossing brought forth the Fort McHenry Tunnel, which made up the last part of I-95 to be completed within the city limits. I-70N would have run through Gwynns Falls/Leakin Park to terminate at I-95 near US 1 Alt. (with the I-170 spur serving the areas to the immediate west of the CBD, where it would terminate), while I-83
21021-422: Was proclaimed complete in 1992, but two of the original Interstates— I-95 and I-70 —were not continuous: both of these discontinuities were due to local opposition, which blocked efforts to build the necessary connections to fully complete the system. I-95 was made a continuous freeway in 2018, and thus I-70 remains the only original Interstate with a discontinuity. I-95 was discontinuous in New Jersey because of
21168-439: Was removed in 1991, but tolls are still collected for northbound traffic over the Millard E. Tydings Memorial Bridge at this location. Additionally, ramp tolls were collected at many of the interchanges until they were abolished by an act of the legislature in 1981. The highway and bridge are maintained by the MDTA. Exits on the John F. Kennedy Memorial Highway were originally numbered consecutively , beginning with exit 1. As
21315-494: Was serving as Supreme Commander of Allied Forces in Europe during World War II . In 1954, Eisenhower appointed General Lucius D. Clay to head a committee charged with proposing an interstate highway system plan. Summing up motivations for the construction of such a system, Clay stated, It was evident we needed better highways. We needed them for safety, to accommodate more automobiles. We needed them for defense purposes, if that should ever be necessary. And we needed them for
21462-528: Was shifted to a new alignment and planned to terminate at I-95 north of the Patapsco River . I-395 was also brought into existence under this plan; it was planned as a freeway spur from I-95 to the south edge of the CBD, connecting to a new route named City Boulevard (now known as Martin Luther King Jr. Boulevard ). The 3-A System's result was that I-95 would act as a bypass of the CBD, with I-395 providing direct access. The first portion of I-95 in Baltimore
21609-516: Was the southern 0.6 miles (0.97 km) of the John F. Kennedy Memorial Highway, completed in 1963. By 1971, I-95 had entered Baltimore proper when it was completed between the Capital and Baltimore beltways; beyond the southern I-695 interchange, the highway came to a dead halt at US 1 Alt. By 1974, I-95 was under construction in East Baltimore between its current merge with I-895 south to
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