Misplaced Pages

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82-651: Plans for a new bridge across the Potomac River began circulating in the early 1950s. A bridge was first proposed (across Theodore Roosevelt Island, as it happened) in 1952, although at that time the bridge was to have linked with the E Street Expressway . The Theodore Roosevelt Memorial Association (later renamed the Theodore Roosevelt Association, or TRA), which owned the island vigorously opposed any bridge across its land. In July 1954, various government agencies and members of Congress came together to propose

164-512: A bridge connecting to Constitution Avenue NW (although debate continued and numerous unsuccessful proposals were made to move the bridge to other locations over the next four years). Less clear was where the bridge would land on the Virginia side of the river. Five locations for the crossing were considered. In order of preference, they were: 1) South of Little Island, 2) Over the northern end of Theodore Roosevelt Island, 3) Over Little Island, 4) Over

246-959: A much narrower, four-lane limited access highway between the Capital Beltway and the Theodore Roosevelt Bridge. As part of the deal, Virginia officials agreed to provide more than $ 100 million (equivalent to $ 393 million in 2023 ) in construction work and funds to help build the Metro system, which has tracks down the I-66 median to a station at Vienna in Fairfax County; to build a multiuse trail from Rosslyn to Falls Church; and to limit rush-hour traffic mainly to car pools. Three more lawsuits would follow, but work began on August 8, 1977, moments after US District Court Judge Owen R. Lewis denied an injunction sought by highway opponents. In

328-644: A one-block segment of New York Avenue to the expressway entrance at 20th and E streets northwest. The expressway and the connecting portions of E Street and New York Avenue are part of the National Highway System . In 1963, the construction of the E Street Expressway caused the demolition of multiple buildings of the Old Naval Observatory . The entire route is in the Foggy Bottom neighborhood of Washington, D.C. All exits are unnumbered. I-66

410-578: A section of a continuous Highway 403, the new link was designated as a western extension of the tolled Highway 407, with the Mississauga section of Highway 403 planned to be renumbered as Highway 410. The renumbering to 410 never came to pass, and consequently Highway 403 was signed concurrently along the Queen Elizabeth Way in 2002, remedying the discontinuity. Nonetheless, many surface street signs referring to that section of freeway with

492-558: A series of interchanges providing access to D.C. suburbs. The Orange Line and Silver Line of the Washington Metro begin to operate in the median here, as the highway reaches a large interchange with the I-495 ( Capital Beltway ). I-66 has two tolled HOT lanes from US 29 in Gainesville to the Capital Beltway. The section of I-66 in Virginia east of the Capital Beltway is named

574-720: A short tunnel, also running on the east side of the Watergate complex . After an indirect interchange with the Rock Creek and Potomac Parkway (via 27th Street), the highway terminates at a pair of ramps leading to the Whitehurst Freeway (US 29) and L Street. The portion of Interstate 66 within Washington, DC, is known as the Potomac River Freeway. The E Street Expressway is a spur of I-66 that begins at an interchange with

656-433: A single mountain crossing or over a bridge, or through a major city, it is often economically and practically advantageous for them all to be accommodated on a single physical roadway. In some jurisdictions, however, concurrent numbering is avoided by posting only one route number on highway signs; other route numbers disappear at the start of the concurrency and reappear when it ends. However, any route that becomes unsigned in

738-423: A single numbered route across each province (an exception being the switching of the designation between Nova Scotia Highways 104 and 105 ), or has branches that are signed exclusively as TCH routes. In Ontario and Quebec, The TCH follows a series of provincial highways, and also has branches that follow sections of others that have concurrencies with it, signed with TCH shields alongside the provincial number. In

820-580: A steel bridge design in December 1955. President Dwight Eisenhower signed legislation authorizing the bridge on June 4, 1958. This legislation designated the bridge for the first time as the "Theodore Roosevelt Bridge". Construction of the bridge began in 1960, and it opened on June 23, 1964. Theodore Roosevelt Bridge underwent minor rehabilitation work overseen by the District of Columbia Department of Transportation (DDOT) in 2013. After this work, DDOT inspected

902-536: A variety of concurrences which can occur. An example of this is the concurrency of Interstate 70 (I-70) and I-76 on the Pennsylvania Turnpike in western Pennsylvania . I-70 merges with the Pennsylvania Turnpike so the route number can ultimately continue east into Maryland; instead of having a second physical highway built to carry the route, it is combined with the Pennsylvania Turnpike and

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984-583: Is a 76.32 mile east–west Interstate Highway in the eastern United States . The highway runs from an interchange with I-81 near Middletown, Virginia , on its western end to an interchange with U.S. Route 29 (US 29) in Washington, D.C. , at the eastern terminus. The route parallels State Route 55 (SR 55) from its western terminus at I-81 to Gainesville , and US 29 from Gainesville to its eastern terminus in Washington. I-66 has no physical or historical connection to US 66 , which

1066-531: Is actually four separate trails connected by a combination of on-road bike facilities and sidewalks. There are plans to extend the trail further west to Sudley Road in Prince William County. All exits in the District of Columbia are unnumbered. Interstate 266 ( I-266 ) was a proposed loop route of I-66 between Washington, D.C. , and Arlington County, Virginia . D.C. officials proposed designating

1148-425: Is free during those times for HOV-3+ drivers with an E-ZPass Flex and for motorcycles. Other drivers must pay a toll that can be almost $ 50 at peak times. Outside of these hours, I-66 is free for all drivers to use. In Washington, D.C. , the route quickly turns north, separating from US 50. The highway interchanges with the E Street Expressway spur before passing beneath Virginia and New Hampshire Avenues in

1230-521: Is in downtown Athens, Georgia , between exits 4 and 8 of SR 10 Loop , where the highway is concurrent with US 29 , US 78 , US 129 , US 441 , SR 8 , SR 15 , and SR 422. In the United States, concurrencies are simply marked by placing signs for both routes on the same or adjacent posts. The federal Manual on Uniform Traffic Control Devices prescribes that when mounting these adjacent signs together that

1312-554: Is officially designated " Daniel Interchange ", providing half of the possible interchange directions. It is a one-mile (1.6 km) segment consisting of eight lanes providing high-speed access between the two highways. Access from Highway 1 west to Highway 6 south and Highway 6 north to Highway 1 east is provided via Route 431 , while access between Highway 1 east to Highway 6 north and Highway 6 south to Highway 1 west are provided at Ben Shemen Interchange. The other movements are provided through

1394-595: Is signed) and Interstate 81 (which runs primarily northeast–southwest, but is also signed north–south). A vehicle might simultaneously be on I-77 northbound and I-81 southbound, while actually traveling due westbound. An unusual example of a three-directional concurrency occurs southeast of Rhinelander, Wisconsin , where US 8 westbound (the actual compass direction) converges with southbound Wisconsin Highway 17 and northbound Wisconsin Highway 47 , and vice-versa. Often when two routes with exit numbers overlap, one of

1476-570: The American Association of State Highway and Transportation Officials for permission to truncate US 27 at Fort Wayne, Indiana . In 2002, Michigan removed the US ;27 designation from I-69 and extended the US ;127 designation from Lansing to Grayling. MDOT's stated reason for the modification was to "reduce confusion along the US 27/US 127 corridor". After US 27's signage

1558-478: The Blue Ridge at Manassas Gap , paralleling SR 55 (John Marshall Highway) and meeting US 17 at a partial interchange with no access from southbound US 17 to westbound I-66. SR 55 also merges onto the freeway at this interchange, forming a three-way concurrency that ends near Marshall , with SR 55 leaving along with U.S. Route 17 Business (US 17 Bus.) and US 17 leaving at

1640-533: The Chesapeake and Ohio Railway , by then the owners of the line, petitioned the Interstate Commerce Commission to let them abandon it. The purchase would eliminate the need to build grade separation where the railroad crossed I-66 and would provide 1.5 miles (2.4 km) of right-of-way for the highway, saving the state millions. The abandonment proceedings took more than three years, as customers of

1722-731: The Custis Memorial Parkway , a toll road with variable tolls during peak hours. The road narrows to four lanes as it heads through Arlington County . The parkway meets SR 7 (Leesburg Pike) at a full interchange. SR 267 (Dulles Toll Road) meets the parkway with an eastbound entrance and westbound exit. Continuing through neighborhoods, the route yet again meets US 29 at an incomplete interchange and continues east into Arlington County, meeting SR 120 (Glebe Road) and continuing to Arlington County. It meets Spout Run Parkway and enters Rosslyn . The freeway turns southeast and runs in between US 29 as it approaches

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1804-584: The Oklahoma – Arkansas state line. At the northern end of this border Oklahoma State Highway 20 runs concurrently with Arkansas Highway 43 and the two highways run north–south along the boundary. Concurrencies are also found in Canada. British Columbia Highway 5 continues east for 12 kilometres (7.5 mi) concurrently with Highway 1 and Highway 97 , through Kamloops . This stretch of road, which carries Highway 97 south and Highway 5 north on

1886-588: The Theodore Roosevelt Bridge , reaching another eastbound entrance and westbound exit as US 29 continues north on the Key Bridge . It then has a complex interchange with George Washington Parkway and SR 110 (Richmond Highway), providing access to Alexandria and the Pentagon , respectively. US 50 ( Arlington Boulevard ) merges onto the highway with a westbound exit and eastbound entrance and

1968-491: The Theodore Roosevelt Bridge . In November, a modified design was submitted, reducing the eight lanes to six. However, in 1975, VDOT disapproved the six-lane design. The parties then agreed on experts to conduct air quality and noise studies for VDOT, selecting the firm of ESL Incorporated , the expert hired originally by ACT. In 1976, United States Secretary of Transportation William Thaddeus Coleman Jr. intervened. On January 4, 1977, Coleman approved federal aid for

2050-650: The Virginia Department of Rail and Public Transportation , and the private partner, I-66 Express Mobility Partners, with an estimating $ 3.7 billion dollars for transportation/road improvements along the I-66 corridor. The project, known as Transform 66, opened to traffic in November 2022 and the HOV rule changed from HOV-2+ to HOV-3+ in early December 2022. In 2015, the Virginia Department of Transportation planning board added I-66 HOT lanes to their list of priority projects for

2132-779: The West Falls Church station at the SR ;7 interchange and provided a new bridge for the W&;OD Trail over US 29. VDOT completed in August ;2018 a diverging diamond interchange in Haymarket at the interchange of I-66 with US 15 . In Washington D.C., I-66 was planned to extend east of its current terminus along the North Leg of the Inner Loop freeway. I-66 would have also met

2214-499: The concurrency of I-75 and I-85 in Atlanta, Georgia —where I-75 is dominant—the exit numbers range from 242 to 251, while I-85's highest independent mile marker in Georgia is 179. Some brief concurrencies in the past have been eliminated by reassigning the designations along the roadways. This can involve scaling back the terminus of one designation to the end of a concurrent section. At

2296-407: The "Shenandoah Freeway", although the name did not enter common use. Between the Capital Beltway and the Theodore Roosevelt Bridge, the eastbound (inbound) roadway is a high-occupancy toll (HOT) road from 5:30 to 9:30 am, and the westbound (outbound) roadway is an HOT road from 3:00 to 7:00 pm. E-ZPass is required for all vehicles except motorcycles, including Dulles Airport users. I-66

2378-551: The "Transform 66 Inside the Beltway" improvement project. VDOT also announced during 2016 that it would initiate on I-66 a dynamic tolling system in the peak travel directions during rush hours. On December 4, 2017, VDOT converted 10 miles (16 km) of I-66 between US 29 in Rosslyn and the Capital Beltway to an HOV variable congestion pricing tolling system. The system permits solo drivers to use I-66 during peak travel hours in

2460-627: The 6.6-mile-long (10.6 km) section from I-81 to US 340/US 522 north of Front Royal opened. In July 1974, a final environmental impact statement (EIS) was submitted. The EIS proposed an eight-lane limited access expressway from the Capital Beltway to the area near Spout Run Parkway . Six lanes would branch off at the Parkway and cross the Potomac River via a proposed Three Sisters Bridge . Another six lanes would branch off to

2542-670: The Arlington County portion of the project. The group objected to that urban segment due to concerns over air quality , noise , unwanted traffic congestion, wasteful spending, impacts on mass transit, and wasted energy by auto travel. In 1972 the US Fourth Circuit Court of Appeals ruled in favor of ACT, technically blocking any construction. The US Supreme Court upheld the ruling in favor of ACT later that same year. Again, work continued elsewhere, and, in October ;1971,

Theodore Roosevelt Bridge - Misplaced Pages Continue

2624-616: The Beltway and SR 120 (Glebe Road); and then along the Rosslyn Spur of the Washington and Old Dominion Railroad (W&OD) between Glebe Road and Rosslyn in Arlington County . The route west of 123 was determined earlier. Two other routes through Arlington neighborhoods and one along Arlington Boulevard were rejected due to cost or opposition. I-66 was originally to connect to the Three Sisters Bridge , but, as that bridge

2706-517: The Capital Beltway (I-495) through Arlington County, Virginia, although many Arlington residents are adamantly opposed to this plan. In 2004–2005, Virginia studied options for widening the highway inside the Beltway, including the prospect of implementing a one-lane-plus-shoulder extension on westbound I-66 within the Beltway (in an attempt to reduce congestion for people commuting away from D.C.). They later settled on three planned "spot improvements" meant to ease traffic congestion on westbound I-66 inside

2788-558: The Capital Beltway. The first improvement, a 1.9-mile (3.1 km) zone between Fairfax Drive and Sycamore Street, started in summer 2010 and was finished in December ;2011. For this project, the entrance ramp acceleration lane and the exit ramp deceleration lanes were lengthened to form a continuous lane between both ramps. The 12-foot (3.7 m) shoulder lane can carry emergency vehicles and can be used in emergency situations. The second one widened 1.675 miles (2.696 km) between

2870-570: The Czech Republic, the European route numbers are only additional, and they are always concurrent with the state route numbering, usually highways or first-class roads. In the state numbering system, concurrences exist only in first-class and second-class roads; third class roads do not have them. The local term for such concurrences is peáž (from the French word péage ). In the road register, one of

2952-729: The D.C. freeway network, which included previous alignments for the North Leg Freeway, led to the mass cancelation of all unbuilt D.C. freeways in 1977, resulting in the truncation of I-66 at US 29. In 2023, as part of the Transform 66 - Outside the Beltway Project, a multi-use trail was built along the right-of-way from Gallows Road, located just outside the Beltway in Dunn Loring to a point just west of Rt. 28 in Centreville. The trail

3034-636: The Gainesville and Haymarket area. I-66's overpasses were reconstructed to accommodate nine lanes (six general purpose, two HOV, and one collector–distributor eastbound) and lengthened for the expansion of US 29 to six lanes. These alterations were completed in June ;2010. In 2014–2015, US 29 was largely grade-separated in the area, including an interchange at its current intersection with SR 619 (Linton Hall Road). The project began in 2004 and finished in 2015. The Virginia Department of Transportation announced its public-private partnership with

3116-506: The I-66 corridor. The projects have sparked opposition between residents and community businesses over the direction of this region's future infrastructure planning. The VDOT established a "Transform 66" website on regional traffic issues. Residents living within the I-66 corridor have set up "Transform 66 Wisely", a website describing local community impacts that the VDOT projects may cause. Local business groups and Chambers of Commerce located near

3198-603: The I-76 designation. The longest Interstate Highway concurrency is I-80 and I-90 for 278 miles (447 km) across Indiana and Ohio . There are at least two examples of eight-way concurrencies. The first example is in Indianapolis, between exits 46 and 47 of the 53-mile (85 km) I-465 beltway , where the highway is concurrent with I-69 , U.S. Highway 31 (US 31), US 36 , US 40 , US 52 , US 421 , and State Road 67 . The second example

3280-703: The Interstate just north of the Roosevelt Bridge. It proceeds east, has an interchange with Virginia Avenue Northwest, and terminates at 20th Street Northwest. From there, traffic continues along E Street Northwest to 17th Street Northwest near the White House , the Old Executive Office Building , George Washington University , and the Corcoran Gallery of Art . Westbound traffic from 17th Street takes

3362-530: The North Leg would emerge from the tunnel and join with the Center Leg Freeway (formerly I-95, now I-395); the two routes would run concurrently for 0.75 miles (1.21 km) before reaching the Washington Union Station interchange, where I-66 was planned to terminate. Despite the plan to route the North Leg in a tunnel beneath K Street, the intense opposition to previous, scrapped alignments for

Theodore Roosevelt Bridge - Misplaced Pages Continue

3444-676: The QEW/Highway ;403 concurrency still only use the highway's original designation of QEW, although the MTO has updated route markers on the QEW to reflect the concurrency. At the national level, the Trans-Canada Highway , which does not bear a uniform number in the eastern provinces, follows various provincial highways. In the Atlantic Provinces the main designated TCH route either follows

3526-570: The Roosevelt Bridge to Rosslyn opened in October 1966. After the Virginia Department of Transportation (VDOT; then known as the Virginia Department of Highways) took possession of the mainline W&OD right-of-way in 1968, they began to run into opposition as the highway revolts of the late 1960s and early 1970s took hold. In 1970, the Arlington County Board requested new hearings, and opponents began to organize marches. At

3608-883: The UK, the existence of these concurrencies is purely theoretical. In Sweden and Denmark, the most important highways use only the European route numbers that have cardinal directions. In Sweden the European route E6 and E20 run concurrently for 280 kilometres (170 mi). In Denmark the E47 and E55 run concurrently for 157 kilometres (98 mi). There are more shorter concurrencies. There are two stretches in Sweden and Denmark where three European routes run concurrently; these are E6, E20 and E22 in Sweden, and E20, E47, and E55 in Denmark. Along all these concurrencies, all route numbers are posted with signs. In

3690-615: The United Kingdom, routes do not run concurrently with others. Where this would normally occur, the roadway takes the number of only one of the routes (usually, but not always, the most important route), while the other routes are considered to have a gap and are signed in brackets (the equivalent of "to" signs in North America). An example is the meeting of the M60 and the M62 northwest of Manchester :

3772-419: The Washington Boulevard onramp and the ramp to the Dulles Access Road. Work on it began in 2013 and finished in 2015. The third project, between Lee Highway/ Spout Run and Glebe Road, was completed in 2022. In Gainesville, Virginia, the Gainesville Interchange Project upgraded the interchange between US 29 and I-66 for those and many other roads due to rapid development and accompanying heavy traffic in

3854-718: The affected areas, however, supported the improvements. Residents along the I-66 corridor, such as in Arlington County, have resisted I-66 widening proposals for many years. The local Stenwood Elementary School would lose its attached field, leaving it with blacktop-only recess space. In an April 16, 2015, letter to the Virginia Secretary of Transportation, members of the 1st, 8th, 10th, and 11th districts of Congress wrote that VDOT research noted that, during peak hours, 35 percent of eastbound cars and 50 percent of westbound cars are HOV violators. Future federal steps for VDOT include National Environmental Policy Act (NEPA) review, obligation of federal funds, certification that

3936-409: The appropriate direction if they pay a toll. VDOT designed the price of toll to keep traffic moving at a minimum of 45 mph (72 km/h) and to increase the capacity of the road. Carpools and vanpools (with three or more people), transit, on-duty law enforcement and first responders will not pay a toll. Prices ranged up to $ 47 for solo drivers, but the average speed during the morning rush hour

4018-545: The bridge in 2014 and discovered additional need for repair. Due to heavy funding needs to replace or repair other bridges in the city, DDOT pushed the date for these repairs to 2021. As of June 2022, emergency work on the bridge is expected to be finished in the summer of 2022. A full rehabilitation of the bridge is expected to begin in 2024 at the earliest. 38°53′32″N 77°03′34″W  /  38.89222°N 77.05944°W  / 38.89222; -77.05944 E Street Expressway Interstate 66 ( I-66 )

4100-399: The center of Theodore Roosevelt Island, and 5) Over the southern end of Theodore Roosevelt Island. TRA president Frank Ross McCoy , a vocal opponent of the bridge, died in 1954, weakening the TRA's bargaining position. In July 1955, the association agreed to allow the federal government to use the southern end of Theodore Roosevelt Island. The United States Commission of Fine Arts approved

4182-455: The concurrency. Since highways in the United States and Canada are usually signed with assigned cardinal directions based on their primary orientation, it is possible for a stretch of roadway shared between two highways to be signed with conflicting, even opposite, cardinal directions in a wrong-way concurrency . For example, near Wytheville, Virginia , there is a concurrency between Interstate 77 (which runs primarily north–south, as it

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4264-418: The conversion to tolled facilities will not "degrade" the existing facility, and potential federal loan guarantee. The Virginia Commonwealth Transportation Board (CTB) is responsible for overseeing VDOT and allocating highway funding to specific projects. The board has 18 members appointed by the Governor, includes the Virginia Secretary of Transportation, Aubrey Layne , and is the group that will be making

4346-502: The eastern terminus of the planned I-266 at US 29, and the western terminus of I-695 (South Leg Freeway) at US 50; I-266 would have been a parallel route to I-66, providing more direct access to the North Leg from points west, while I-695 would have been an inner-city connector between I-66 and I-95. The final plans for the North Leg Freeway, published in 1971, outlined a 1.5-mile (2.4 km) six-lane tunnel beneath K Street , between I-266/US 29 and New York Avenue, where

4428-415: The federal government to the Commonwealth of Virginia the authority for the operation, maintenance, and construction of I-66 between Rosslyn and the Capital Beltway. Because I-66 is the only Interstate Highway traveling west from Washington, D.C., into Northern Virginia , traffic on the road is often extremely heavy. For decades, there has been talk of widening I-66 from two to three lanes each way inside

4510-419: The final decision and allocating funding for VDOT's plans for I-66. In 2016, VDOT announced that it was planning to add express lanes and multimodal transportation improvements to I-66 outside the Beltway (the "Transform 66 Outside the Beltway" improvement project). A decision was also made to move forward with widening I-66 eastbound and make multimodal improvements from the Dulles Airport connector to Ballston,

4592-410: The gap between Haymarket and Gainesville closed on December 19, 1980. On December 22, 1982, the final section of I-66 opened between the Capital Beltway and US 29 (Lee Highway) in Rosslyn, near the Virginia end of the Theodore Roosevelt Bridge. The Custis Trail , the trail along I-66 built between Rosslyn and Falls Church as a concession, opened in the summer of 1982, before the highway

4674-446: The highway department bought the Rosslyn Spur of the W&OD for $ 900,000 (equivalent to $ 6.94 million in 2023 ) and began clearing the way, such that, by 1965, all that was left was dirt and the remains of 200 homes cleared for the highway. In February 1965, the state contracted to buy 30.5 miles (49.1 km) of the W&OD from Herndon to Alexandria for $ 3.5 million (equivalent to $ 25.8 million in 2023 ) and

4756-435: The late 1970s and early 1980s, the highway's final miles were built. A 2.9-mile-long (4.7 km) section from Delaplane to US 17 east of Marshall was completed in two sections in 1978 and 1979. The 15.6-mile-long (25.1 km) section from US 340 to Delaplane was completed in August 1979. A 12-mile (19 km) section between US 17 in Marshall and US 15 in Haymarket opened in December 1979, with

4838-579: The middle of the concurrency will still be signed on most maps and road atlases. Most concurrencies are simply a combination of at least two route numbers on the same physical roadway. This is often practically advantageous as well as economically advantageous; it may be better for two route numbers to be combined into one along rivers or through mountain valleys. Some countries allow for concurrencies to occur, however, others specifically do not allow it to happen. In those nations which do permit concurrencies, it can become very common. In these countries, there are

4920-416: The motorways coincide for the seven miles (11 km) between junctions 12 and 18 but the motorway between those points is only designated as the M60 (although in this case the same junction numbers would also apply to the M62). European route numbers as designated by UNECE may have concurrencies (for instance E15 and E30 around Greater London ), but since the E-route numbers are unsigned and unused in

5002-441: The next exit. The freeway then passes through Bull Run Mountain at Thoroughfare Gap . Expanding to six lanes, and continuing to parallel SR 55, I-66 enters the towns of Haymarket and Gainesville , reaching interchanges with US 15 (James Madison Highway) and US 29 (Lee Highway) in each town, respectively. The highway then expands to ten lanes and heads to the south of Manassas National Battlefield Park and to

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5084-468: The north of Bull Run Regional Park . The highway reaches another interchange with US 29 and passes to the north of Centreville and meets SR 28 (Sully Road) at an interchange with cloverleaf and stack elements to it. SR 28 heads north to Dulles International Airport and south to Manassas . The freeway then meets SR 286 ( Fairfax County Parkway ), US 50 (Lee Jackson Memorial Highway), and SR 123 ( Chain Bridge Road) at

5166-469: The numbers will be arranged vertically or horizontally in order of precedence. The order to be used is Interstate Highways , U.S. Highways , state highways , and finally county roads , and within each class by increasing numerical value. Several states do not officially have any concurrencies, instead officially ending routes on each side of one. There are several circumstances where unusual concurrencies exist along state borders. One example occurs along

5248-430: The province's only concurrency between two 400-series highways . The concurrency was not in the original plan which intended for both the QEW and Highway 403 to run parallel to each other, as the Hamilton–Brantford and Mississauga sections of Highway 403 were initially planned to be linked up along a corridor (later planned to be tolled ) now occupied by Highway 407 . To avoid forcing drivers to pay tolls to use

5330-420: The railway and transit advocates fought to keep the railroad open and delayed work on the highway. During that time, on November 10, 1967, the Washington Metropolitan Area Transit Authority (WMATA) announced that it had come to an agreement with the Highway Department that would give them a two-year option to buy a five-mile (8.0 km) stretch of the right-of-way from Glebe Road to the Beltway, where I-66

5412-410: The roads is considered the main ("source") road and the others as the péaging (guest) roads. The official road map enables a maximum of five concurrent routes of the intrastate numbering system. Cycling routes and hiking routes are often concurrent. In Israel, two freeways , the Trans-Israel Highway (Highway 6), and Highway 1 run concurrently just east of Ben Shemen Interchange . The concurrency

5494-539: The route Interstate 66N, a move opposed by AASHTO . In Virginia, I-266 would have split off from I-66 just east of the present SR 124 (Spout Run Parkway) exit. From there, it would have followed an expanded Spout Run Parkway, crossed the George Washington Memorial Parkway , and crossed the Potomac River across a new bridge that would have been called the Three Sisters Bridge . Upon entering D.C., it would have followed Canal Road and an expanded US 29 (Whitehurst Freeway) to rejoin I-66 at K Street . I-266

5576-434: The routes has its exit numbers dominate over the other and can sometimes result in having two exits of the same number, albeit far from each other along the same highway. An example of this is from the concurrency of I-94 and US 127 near Jackson , Michigan. The concurrent section of freeway has an exit with M-106 , which is numbered exit 139 using I-94's mileage-based numbers. US 127 also has another exit 139 with

5658-498: The same roadway (and vice versa), is the only wrong-way concurrency in British Columbia. Concurrencies are also very common in Quebec . Most notably, the Samuel-de-Champlain Bridge features a concurrency with three Autoroutes: A-10 , A-15 , and A-20 . Another example is A-55 , which runs concurrently with A-10, A-20, and A-40 , all of which are major highways. In Ontario , the Queen Elizabeth Way and Highway 403 run concurrently between Burlington and Oakville , forming

5740-407: The same time, the federal government wanted to pave the right-of-way from Washington Boulevard and Glebe Road to Rosslyn for an experimental busway, which Arlington County opposed, in part because they thought it might delay and add to the cost of I-66. A significant delay was encountered when the Arlington Coalition on Transportation (ACT) filed a lawsuit in Federal District Court in 1971 opposing

5822-443: The same time, there could be an extension of another highway designation that is used to replace the newly shortened designation with another one. Between states, US 27 in Michigan previously ran concurrently with I-69 from the Michigan–Indiana state line to the Lansing, Michigan , area. From there it turned northwards to its terminus at Grayling . In 1999, the Michigan and Indiana departments of transportation petitioned

5904-637: The southern end of the US 127 business loop in Mount Pleasant , Michigan. (US 127's mile markers in Michigan reflect the cumulative distance north of the Ohio state line; the numbers resume north of the I-94 overlap and reflect the distance accumulated on that concurrency.) However, there are also instances where the dominant exit number range is far more than the secondary route's highest exit number, for example

5986-602: The two traverse the bridge. The "Custis Memorial Parkway" name commemorates the Custis family, several of whose members (including Martha Dandridge Custis Washington , George Washington Parke Custis , Eleanor "Nelly" Parke Custis Lewis and Mary Anna Randolph Custis Lee ) played prominent roles in Northern Virginia 's history. Because of its terminus in the Shenandoah Valley , some early planning documents refer to I-66 as

6068-461: Was 57 mph (92 km/h) versus 37 mph (60 km/h) a year before. In 2017, construction began on the "Transform 66 Outside the Beltway" improvement project. The project added 22.5 miles (36.2 km) of new dynamically-tolled express lanes alongside I-66 from I-495 to University Boulevard in Gainesville. It also built new park and ride facilities, interchange improvements and 11 miles (18 km) of expanded multi-use trail. The project

6150-707: Was canceled in 1972 in the face of community opposition during Washington, D.C.'s freeway revolts . Concurrency (road) A concurrency in a road network is an instance of one physical roadway bearing two or more different route numbers . When two roadways share the same right-of-way , it is sometimes called a common section or commons . Other terminology for a concurrency includes overlap , coincidence , duplex (two concurrent routes), triplex (three concurrent routes), multiplex (any number of concurrent routes), dual routing or triple routing . Concurrent numbering can become very common in jurisdictions that allow it. Where multiple routes must pass between

6232-595: Was canceled, it was later designed to connect to the Potomac River Freeway via the Theodore Roosevelt Bridge. On December 16, 1961, the first piece of I-66, an 8.6-mile-long (13.8 km) section from US 29 at Gainesville to US 29 at Centreville was opened. A disconnected 3.3-mile-long (5.3 km) section near Delaplane in Fauquier County opened next in May ;1962. In July 1962,

6314-458: Was complete. SR 267 ( Dulles Access Road ) between I-66 and the airport opened in 1984. The Metrorail in the median of I-66 between Ballston and Vienna, another concession, opened on June 7, 1986. After opening, the restrictions on use began to loosen. In 1983, Virginia dropped the HOV requirement from 4 to 3 and then from 3 to 2 in 1994. In 1992, motorcycles were allowed. On October 9, 1999, Public Law 106-69 transferred from

6396-577: Was completed in November ;2022. Construction on widening eastbound I-66 as part of the "Transform 66 Inside the Beltway" improvement project began in June 2018 and was completed in 2020. The project added a travel lane on eastbound I-66 between the Dulles Access Road and Fairfax Drive (exit 71) in Ballston, and provided a new ramp-to-ramp direct access connection from eastbound I-66 to

6478-669: Was first proposed in 1956 shortly after Congress established the Highway Trust Fund as a highway to connect Strasburg, Virginia , in the Shenandoah Valley with Washington, D.C.. During the planning stages, the Virginia Highway Department considered four possible locations for the highway inside the Beltway; in 1959, it settled on one that followed the Fairfax Drive–Bluemont Drive corridor between

6560-468: Was located in a different region of the United States. The E Street Expressway is a spur from I-66 into the Foggy Bottom neighborhood of Washington, D.C. I-66 begins at a directional T interchange with I-81 near Middletown, Virginia . It heads east as a four-lane freeway and meets US 522 / US 340 at a partial cloverleaf interchange . The two routes head south to Front Royal and north to Lake Frederick . I-66 continues east and crosses

6642-540: Was removed, the highway north of the Lansing area was renumbered US 127, and the US 27 designation was removed from I-69. Some consolidation schemes involve the use of incorporating two single-digit numbers onto one marker, as along the US 1/9 concurrency in northern New Jersey . In the mid-20th century, California had numerous concurrencies, but the California Legislature removed most of them in

6724-482: Was to be built, and run mass transit on the median of it. The W&OD ran its last train during the summer of 1968, clearing the way for construction to begin in Arlington County. While the state waited on the W&;OD, work continued elsewhere. The Theodore Roosevelt Bridge opened on June 23, 1964, and, in November of that year, the section from Centreville to the Beltway opened. A 0.2-mile (0.32 km) extension from

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