Misplaced Pages

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70-411: US 41 enters Illinois running concurrently with US 12 and US 20 on the far southeast side of Chicago . They run together until the junction of 95th Street and Ewing Avenue. US 41, then continues down Ewing Avenue for one-half mile (800 m) before heading northwest–southeast along the extension of Lake Shore Drive. Lake Shore Drive continues until US 41 meets South Shore Drive and 79th Street. This

140-606: A comprehensive reform of highway numbering in 1964 . [REDACTED] Media related to Concurrency at Wikimedia Commons Interstate 70 in Pennsylvania Interstate ;70 ( I-70 ) is an Interstate Highway that is located in the Commonwealth of Pennsylvania in the United States. It runs east to west across the southwest part of Pennsylvania and serves the southern fringe of

210-592: A complete diamond interchange with PA 481 , a westbound exit and eastbound entrance to Twin Bridges Road to the northeast of the hamlet of Lover , and a full cloverleaf interchange with the Mon–Fayette Expressway (PA 43), as the route descends into the valley of the Monongahela River . From here, the freeway curves east-northeast into the borough of Twilight , before crossing into

280-421: A four-lane freeway with a standard-size median up to Interstate Highway standards through rural areas of woodland and farmland, coming to its first junction at a partial cloverleaf interchange with State Route 3023 (SR 3023), to the southeast of unincorporated village of West Alexander . Past this junction, the freeway begins to parallel US 40 on the northwest side of the road, before it enters

350-548: A half-mile (0.80 km) wrong-way concurrency through the community of Breezewood . This section of I-70 is one of the few instances of where an Interstate Highway follows a road that lacks grade separation and includes traffic signals . I-70 follows US 30 west along a five-lane highway with a center turn lane through commercial areas in Breezewood before it splits from US 30 and turns left onto another freeway alignment. US 30, meanwhile, continues west toward

420-412: A highway substandard of modern Interstate standards. This section of I-70 (old I-70S) has several dated design features. The median narrows to the point that there are no shoulders between the median barrier and the passing lanes on both sides. On- and off-ramps at many of the interchanges are substandard in both length and geometry, which requires vehicles to decelerate in the travel lanes before entering

490-551: A pair of right-in/right-out ramps connecting to PA 221 , which serves the unincorporated village of Taylorstown to the northeast, in adjacent Blaine Township . The freeway comes into North Franklin Township before crossing into Canton Township at its partial interchange with US 40 which lacks a westbound entrance; the interchange is adjacent to the Washington Crown Center shopping mall located to

560-493: A pair of right-in/right-out ramps with the southern terminus of PA 915 in the unincorporated village of Crystal Spring , in Brush Creek Township . The freeway continues through a valley of farmland and comes to an eastbound rest area on the western slope of Town Hill , which the highway crosses at an oblique angle. In the middle of the mountain crossing, I-70 has another pair of right-in/right-out ramps with

630-554: A redesigned interchange between I-70/I-79 and Murtland Avenue ( US 19 ), and involves replacing the existing substandard cloverleaf in favor of the first diverging diamond interchange in Pennsylvania. In September 2024, it was announced at a Pennsylvania Turnpike Commission press conference that a direct connection for I-70 to enter the Pennsylvania Turnpike at Breezewood would be built, finally completing

700-660: A result, US 41 moved eastward onto the new road. 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

770-593: 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

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840-499: A series of winding curves. From here, I-70 heads east to meet a weigh station and a welcome center in the eastbound direction, as well as an interchange with SR 3024 connecting to Pennsylvania Route 231 (PA 231) via US 40 in the borough of Claysville . The freeway curves to a more east-northeasterly direction, where it briefly passes through the borough limits of Claysville, before briefly reentering Donegal Township. I-70 enters Buffalo Township , where it soon meets

910-433: 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

980-423: 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

1050-488: A total reconstruction of I-70 between the West Virginia state line and New Stanton. Approximately $ 500 million will be spent on this 58-mile (93 km) segment of highway in order to improve it to modern Interstate standards, half of which will be spent redesigning eight interchanges. Other planned improvements include six overpass replacements, a new roadbed, a wider median, electronic ITS signage, and widening

1120-481: 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

1190-465: 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

1260-604: Is named Skokie Boulevard through Skokie , then its name changes to Skokie Valley Road north of Skokie. Traveling north, it joins I-94 (Edens Expressway) westbound just north of the Old Orchard Shopping Center ; they split a few miles north when US 41 becomes the Skokie Highway. The highway serves as a major north–south arterial expressway for much of its routing through Chicago's northern suburbs, as well as an oft-used alternate for truckers avoiding

1330-554: 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

1400-600: 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

1470-591: Is the western terminus of the Lake Shore Drive extension and US 41 continues through the South Shore neighborhood's section of South Shore Drive before reaching the southern terminus of Lake Shore Drive. The Lake Shore Drive section of US 41 is a six- to eight-lane highway along the shores of Lake Michigan through Chicago's lakefront park system. It is a limited-access highway except for five signalized intersections near downtown Chicago. Just short of

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1540-589: 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

1610-682: The Ohio Turnpike , which continues towards Cleveland . For 86 miles (138 km) from New Stanton to Breezewood , I-70 shares a concurrency with I-76 along the Pennsylvania Turnpike. I-70 passes through a wind farm in Somerset County and close to the 9/11 Flight 93 National Memorial in Shanksville . It then has an indirect connection to I-99 in Bedford County before reaching the eastern end of its concurrency with

1680-593: 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

1750-653: The Pennsylvania Turnpike near Pittsburgh and the other heading east, bypassing Pittsburgh to the south (via a planned bypass of PA 71 ) to the New Stanton interchange . The piece south from the Breezewood interchange into Maryland was also included in the network. The route between US 30 in Breezewood and US 522 in Warfordsburg was originally known as Pennsylvania Route 126 ( PA 126 ). In 1957, preliminary numbers were assigned;

1820-615: The Pittsburgh metropolitan area. About half of this route is concurrent with I-76 on the Pennsylvania Turnpike , which is a toll road . This is the oldest segment of I-70 in Pennsylvania, having been completed in 1940, and is only one of two segments of I-70 that are tolled, with the other being the Kansas Turnpike . I-70 is one of only a few Interstate Highways to have a traffic signal —in this case, with U.S. Route 30 (US 30) in Breezewood , where it leaves

1890-509: 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

1960-586: 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

2030-543: The I-70/I-79 concurrency in Washington to six lanes. Two noteworthy interchange projects will occur in conjunction with the I-70/I-79 widening. Underway is a reconfiguration of the east/south split between I-70 and I-79, which will eliminate the one-lane, low-speed loop ramp from I-79 northbound to I-70 westbound, replacing it with a two-lane, high-speed flyover ramp. Preliminary design work has also been completed for

2100-613: 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

2170-430: The Pennsylvania Turnpike and heads toward Maryland . Two segments of I-70 in Pennsylvania are not designed to modern Interstate standards : a 37-mile (60 km) segment from Washington to New Stanton and the aforementioned half-mile (0.80 km) signalized segment in Breezewood. I-70 enters Pennsylvania from West Virginia , coming into Donegal Township , Washington County . The highway continues northeast as

U.S. Route 41 in Illinois - Misplaced Pages Continue

2240-707: 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

2310-694: The Turnpike in Breezewood. I-70 splits from the Pennsylvania Turnpike at the Breezewood Interchange in East Providence Township , Bedford County . The turnpike continues east toward Harrisburg and Philadelphia , while I-70 passes through another toll plaza and passes under its own carriageways, before downgrading into another highway substandard of Interstate standards, at a partial trumpet interchange with US 30 . Eastbound I-70 merges onto westbound US 30 to form

2380-903: 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

2450-635: 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 :

2520-521: The borough limits of Bentleyville at the PA ;917 interchange, which only contains an eastbound exit and westbound entrance. Shortly afterward, the freeway crosses over Norfolk Southern Railway 's Ellsworth Secondary and meets modified right-in/right-out ramps to Wilson Road, which provides complete access to PA 917 and the center of Bentleyville to and from both directions. Following Bentleyville, I-70 enters Fallowfield Township , where it has

2590-440: The borough of Everett . Beyond US 30, I-70 heads south and becomes a four-lane freeway that once again conforms to modern Interstate standards. The median widens, before the freeway crosses over its preceding carriageways and under the Pennsylvania Turnpike. Shortly past the turnpike underpass, there is an interchange with South Breezewood Road before I-70 curves to cross Rays Hill , crossing into Fulton County, and coming to

2660-625: The borough of Speers at the interchange with Maple Drive/Twilight Hollow Road. At this point, I-70 meets PA 88 at a pair of right-in/right-out ramps, prior to crossing over Norfolk Southern Railway's Mon Line , the Monongahela River, and CSX Transportation 's Mon Subdivision on the Belle Vernon Bridge , where the route leaves both Speers and Washington County. Beyond the Belle Vernon Bridge,

2730-491: The community of Lynnwood-Pricedale that also provides access to PA 837 . I-70 continues through wooded areas with nearby development, reaching an interchange with SR 3011 north of the hamlet of Arnold City in adjacent Washington Township , Fayette County , before coming to a cloverleaf interchange with PA 51 as the route begins to enter the valley of the Youghiogheny River . Past PA 51,

2800-455: 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

2870-690: The cost of tolls on the Tri-State Tollway . Before reaching the Wisconsin border, US 41 rejoins I-94 at the northern terminus of the Tri-State Tollway; these two roads continue, toll-free, north one mile (1.6 km) to the Wisconsin border. Initially, US 41 followed what used to be Illinois Route 42 . In 1931, it was rerouted away from Zion and Winthrop Harbor while IL 42 north of Chicago remained untouched. In 1935, an entire section of US 41 between Chicago and Waukegan

U.S. Route 41 in Illinois - Misplaced Pages Continue

2940-455: The early 2020s. The first interchange that the freeway meets past I-79 is with PA 519 , where the route crosses into Somerset Township . I-70 continues through areas of rural farmland with surroundings of wooded rolling hills and turns to the east-southeast, coming to interchanges with SR 1055 south of the hamlet of Dunningsville and McIllvaine Road southeast of the hamlet of Kammerer, in adjacent Nottingham Township , before reaching

3010-524: The formation of I-76 (east of Downtown Pittsburgh ), the American Association of State Highway and Transportation Officials (AASHTO) approved a rerouting of I-70 along I-70S. The former I-70 became I-79 from Washington to downtown Pittsburgh and I-76 to and along the Turnpike to New Stanton. This brought the routing of I-70 to its present form. In 2011, the Pennsylvania Department of Transportation (PennDOT) began preliminary work for

3080-447: The freeway enters the city limits of Washington, where it comes to a pair of right-in/right-out ramps that connect to PA 18 . A short distance later, I-70 enters South Strabane Township and reaches its western junction with I-79 at a directional interchange, which heads north toward the city of Pittsburgh . The freeway turns southeast through the interchange and begins a concurrency with I-79. A Jersey barrier takes over in

3150-490: The freeway has an interchange with Waltz Mill Road to the south of the borough of Madison , before it passes through Hempfield Township prior to entering New Stanton. Within the borough limits, I-70 has a dumbbell interchange with SR 3089, before it exits the mainline freeway at a trumpet interchange, to come to a toll plaza for the New Stanton interchange on the Pennsylvania Turnpike ( I-76 ). At this point,

3220-416: The highway's median as it comes to a diverging diamond interchange with US 19 in a commercial area surrounded by strip malls. A short distance later, I-70/I-79 comes to a partial cloverleaf interchange with PA 136 to the northeast of the borough limits of East Washington that provides access to Washington & Jefferson College ; a park and ride lot is located in the northeastern corner of

3290-476: The interchange. Past PA 136, the freeway heads back into rural areas with scattered residences, before reaching the eastern split between I-70 and I-79 at a directional interchange. I-79 turns south toward the city of Morgantown, West Virginia , while I-70 continues east along the original roadway toward the borough of New Stanton in Westmoreland County . East of I-79, I-70 downgrades to

3360-404: The longer route via Pittsburgh (now I-79 and I-376 ) became the main line of I-70, while the southern bypass (now I-70) became Interstate 70S ( I-70S ). The original alignment is now known as Old 126 or Breezewood Road . The section of present-day I-70 between PA 519 near Washington and New Stanton was built as a four-lane divided highway known as the "Express Highway"; this road

3430-504: The mainline freeway continues east to a cloverleaf junction between US 119 and the southern terminus of PA 66 . I-70 itself passes through the toll plaza and comes to another trumpet interchange, where the Interstate merges onto the eastbound turnpike that heads toward the city of Harrisburg , the state capital of Pennsylvania. In the opposite direction, the Pennsylvania Turnpike heads northwest toward Pittsburgh, then becomes

3500-579: 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

3570-569: 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

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3640-442: The northern portion of LSD, the extension would function more like an arterial road instead of a limited-access road . Previously, a portion of U.S. Route 41 used to travel north through Mackinaw Avenue, west through 87th Street, north through Burley Avenue, west through 85th Street, northwest through Baker Avenue, and north through South Shore Drive until it reached 79th Street. The extension eventually opened on October 27, 2013. As

3710-471: The northern terminus of PA 643 , and then descends along the length of its eastern slope into another rural valley. Within this valley, the freeway enters Union Township , turns generally more southeast and interchanges with the northern terminus of PA 731 , east of the unincorporated village of Amaranth . Past PA 731, I-70 crosses Sideling Hill and comes into Bethel Township . The route heads through forested and mountainous surroundings in

3780-420: The northern terminus of Lake Shore Drive, US 41 exits at Foster Avenue. It follows Foster Avenue west for over two miles (3.2 km) and then heads northwest on Lincoln Avenue into neighboring Lincolnwood . Between Lake Shore Drive and Lincolnwood, US 41 intersects US 14 twice; once at its terminus at Foster Avenue and Broadway, and once again at the intersection of Peterson Avenue and Lincoln Avenue. US 41

3850-469: 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

3920-411: The off-ramps, and also necessitates the use of stop signs on the on-ramps instead of yield signs . Several overpasses do not meet minimum clearance requirements, which has resulted in damage to and from overheight trucks . Total reconstruction efforts are ongoing that will upgrade most of this segment of I-70 and its interchanges to modern Interstate standards, and various projects are scheduled through

3990-491: 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

4060-481: 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

4130-716: The route crosses the Smithton High-Level Bridge over the Youghiogheny River and CSX Transportation's Keystone Subdivision , where it enters South Huntingdon Township . From here, I-70 interchanges with SR 3031 north of the borough of Smithton , PA 31 at cloverleaf to the northwest of the Pittsburgh Renaissance Festival grounds, and SR 3010 to the southeast of the unincorporated village of Yukon , before it comes into Sewickley Township . In this area,

4200-483: The route enters Westmoreland County within Rostraver Township . Here, it has a partial cloverleaf interchange with PA 906 , before it crosses into the borough of North Belle Vernon and interchanges with Fayette Street, to the northeast of the borough center. From this point, the freeway heads back into Rostraver Township where it meets PA 201 at a partial cloverleaf interchange northeast of

4270-434: 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

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4340-766: 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

4410-667: 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

4480-601: 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

4550-483: The southwest of the interchange. From here, I-70 crosses over an abandoned portion of the Allegheny Valley Railroad 's W&P Subdivision line and enters mixed areas of development on the outskirts of the city of Washington , which is also the county seat of Washington County. After passing through an interchange with Sheffield Avenue serving the industrial and commercial area of Jessop Place,

4620-585: The watershed of Tonoloway Creek , before coming to an interchange with the western end of the highway's concurrency with US 522 in the unincorporated town of Warfordsburg . Southbound US 522 merges onto eastbound I-70 and the two routes run concurrent across the Mason–Dixon line into Washington County , Maryland . By 1947, I-70's route across Pennsylvania was included in the planned Interstate Highway System . The route from West Virginia split at Washington , with one branch heading northeast to meet

4690-634: Was assigned the temporary PA 71 Alternate ( PA 71 Alt. ) designation in 1957 and would be designated as I-70S following the completion of additional connecting roads in the Interstate Highway System. On July 15, 1960, I-70 was designated onto the Penn-Lincoln Parkway. A southern extension of I-79 (which had previously only run from Erie south to Pittsburgh ) to Charleston, West Virginia , in 1963 resulted in changes to I-70. On February 26, 1964, as part of

4760-630: Was realigned to a new alignment. The new alignment closely matched the current routing of US 41. By 1939, Skokie Highway (part of US 41) was fully completed. With the completion of the Edens Expressway in 1951, US 41 was moved onto the expressway north of Touhy Avenue. Eventually, in 1959, Interstate 94 appeared on the Edens Expressway as well as the Edens Spur and part of the Tri-State Tollway . In 1966, US 41

4830-426: 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

4900-474: Was rerouted back onto Skokie Boulevard. In 1987, the S-curve was straightened out. By 1997, the northbound lanes were moved west to the southbound lanes; eliminating the split at Museum Campus . Around that same year, the overpass north of I-55 became fully pedestrianized in favor of expanding McCormick Place . A $ 64 million Lake Shore Drive extension project, spanning from 79th Street to 92nd Street/Ewing Avenue/Harbor Avenue junctions, began in April 2012. Unlike

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