 U.S. Route 20 | ||||
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 US 20 highlighted in red, US 20 Bus. in blue | ||||
| Route information | ||||
| Maintained byINDOT | ||||
| Length | 155.734 mi[1] (250.630 km) | |||
| Existed | 1926–present | |||
| Major junctions | ||||
| West end |    US 12 /US 20 /US 41 at theIllinois state line | |||
| Major intersections | US 41 atWhitingUS 12 atGary   I-65 /I-90 /Indiana Toll Road at Gary US 421 atMichigan City I-94 near Michigan City US 35 near Michigan City US 31 atSouth Bend US 33 atElkhart I-69 nearAngola | |||
| East end | US 20 at theOhio state line | |||
| Location | ||||
| Country | United States | |||
| State | Indiana | |||
| Counties | Lake,Porter,LaPorte,St. Joseph,Elkhart,LaGrange,Steuben | |||
| Highway system | ||||
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U.S. Route 20 (US 20) inIndiana is a main east–west highway that is parallel to theIndiana Toll Road. The western terminus of US 20 is at theIllinois state line and the eastern terminus is at theOhio state line. US 20 throughWhiting,East Chicago, andGary is concurrent withUS 12 twice. The route varies betweenone-way, two-lane, and four-lane streets, inNorthwest Indiana. From the east side of Gary to west ofSouth Bend, US 20 is a four-lane undivided highway. The route then heads around the west and south sides of South Bend andElkhart as a four-lane limited access divided highway. East ofState Road 15 (SR 15), US 20 is two-lane rural highway.
US 20 was part of the Dunes Highway from the Illinois state line toMichigan City, concurrent with US 12. The Dunes Highway started being paved in 1922. The section of the highway that is known as Lincoln Way was part of the 1913 section of theLincoln Highway. Indiana State Highway Commission, later renamedIndiana Department of Transportation (INDOT), began signing US 20 in 1926. US 20 went through downtown South Bend and Elkhart before theSt. Joseph Valley Parkway was built. Before the parkway was completed, the route that was open to traffic was calledUS 20 Bypass (US 20 Byp.). A small realignment inLaGrange County was done in 2005, in which the roadway was straightened. Other small realignments included the route through Michigan City, which followedUS 35 from US 12 toInterstate 94 (I-94).
Only the segment of US 20 that is concurrent with theSt. Joseph Valley Parkway is included as a part of theNational Highway System (NHS).[2] The NHS is a network of highways that are identified as being most important for the economy, mobility, and defense of the nation.[3] The highway is maintained byINDOT like all other U.S. Highways in the state. The department tracks the traffic volumes along all state highways as a part of its maintenance responsibilities using a metric calledannual average daily traffic (AADT). This measurement is a calculation of the traffic level along a segment of roadway for any average day of the year. In 2010, INDOT figured that lowest traffic levels were the 3,390 vehicles and 1,090 commercial vehicles used the highway daily near the Ohio state line. The peak traffic volumes were 36,040 vehicles and 731 commercial vehicles AADT along the section of US 20 concurrent withSR 331.[4]
US 20 enters Indianaconcurrent with US 12 andUS 41, at which point it passes under the Indiana Toll Road. The road passes by both commercial and industrial areas, betweenWolf Lake andHorseshoe Casino. US 12, US 20, and US 41 are concurrent until US 41 turns south on Calumet Avenue. US 12 and US 20 head southeast towardEast Chicago; in East Chicago, US 12 turns east and US 20 continues south. US 20 meetsSR 312 and passes under the Indiana Toll Road. US 20 turns left onto Michigan Street and heads east toGary passing both industrial and residential areas. On the way to Gary, US 20 has aninterchange withSR 912; at the interchange, the road name changes to 5th Avenue. Just west of Gary, US 12 and US 20 have a concurrency.[5]
US 12 and US 20 are concurrent through most of Gary. From Bridge Street to Vermont Street, the eastbound traffic of US 12/US 20 is on 5th Avenue and westbound traffic is on 4th Avenue. East ofDowntown Gary, the eastbound and westbound lanes merge to form the Dunes Highway. Before reaching the neighborhoods of northeastern Gary, the Dunes Highway has an interchange withI-65 andI-90/Indiana Toll Road.
Shortly thereafter, US 12 leaves to the northeast towardMichigan City and US 20 heads east then northeast, forming a major retail corridor through the neighborhoods ofAetna andMiller Beach.[6] US 20 then meetsSR 51 at the state road's northern terminus, near the boundary betweenLake Station and Gary. Just west ofPortage, the road passes underI-94. In Portage, the route has intersections with bothSR 249 andSR 149. The road now entersBurns Harbor and has interchanges with I-94 andSR 49, just south ofIndiana Dunes National Park. The route heads northeast untilTown of Pines, where it intersects withSR 520. After Pines, the route heads due east toUS 421 in Michigan City.[5]
From US 421, the route heads east and then northeast around Michigan City. On the east side of Michigan City, the route has an interchange with bothSR 212 and I-94 followed by an intersection with the northern terminus ofUS 35. After US 35, the route becomes a four-lane undivided highway untilRolling Prairie, passingSR 39 atSpringville. East of Rolling Prairie the route meetsSR 2. US 20 heads northeast and then east and SR 2 heads due east. The route passes throughHudson Lake andNew Carlisle beforeSouth Bend.[5]
On the west side of South Bend, near the city'sairport, US 20 meets and exits onto the St. Joseph Valley Parkway which then runs due south along withUS 31. At thiscloverleaf interchange, the continuing road to the east is Lincolnway West, the original routing of US 20 into the city, which has been modified from its original alignment to skirt the south end of an extended runway at the airport. Now concurrent with US 31, the St. Joseph Valley Parkway has another cloverleaf junction, withSR 2 on Western Avenue, before it curves to the southeast to run along the southwest side of South Bend. The freeway then turns due east before encountering yet another cloverleaf interchange, this one with departing US 31 and Michigan Street, just south of downtown South Bend. Further east, on the south side ofMishawaka, US 20 has a 2.09-mile (3.36 km) concurrency withSR 331. The road has apartial cloverleaf interchange withUS 33 nearDunlap. The interchange with Old US 20 is incomplete with no access to westbound Old US 20 from eastbound US 20. Soon after the junction with Old US 20 is an interchange withCounty Road 17 (CR 17). The CR 17 interchange marks the eastern terminus of the limited-access freeway known as the St. Joseph Valley Parkway.[5]
US 20 heads east from Elkhart towardMiddlebury, as a four-lane roadway with a center turn lane. The road has an intersection withSR 15 south ofBristol. After the intersection with SR 15, US 20 becomes a two-lane highway. The route passes through the southwest side of Middlebury. On the south side of Middlebury, the route has atraffic light atSR 13. The route becomes a four-lane divided highway just west of this intersection, and, soon, after the intersection, the road becomes a two-lane highway. From Middlebury, the route heads east towardLaGrange, passing through rural farmland in easternElkhart County and westernLaGrange County. On the way to LaGrange, the route passes through an intersection withSR 5 just south ofShipshewana. The route heads east toward downtown LaGrange, having an intersection withSR 9. The route heads east through rural farmland in eastern LaGrange County and westernSteuben County. The route entersAngola and has an interchange withI-69. The road continues east into downtown Angola, passing just to the north ofTrine University. At the center of downtown, US 20 has aroundabout withSR 127 (Old US 27). After going through the east side of Angola, the route continues east towardOhio. In rural eastern Steuben County, the route passes through farmland and has an intersection with the northern terminus ofSR 1. Just west of the Ohio state line, the route passes under the Indiana Toll Road (I-80/I-90).[5]
An important road from 1900 to 1910 was the Old Chicago Road, later renamed the Dunes Highway.[7][8] The Dunes Highway Association engineers envisioned the Dunes Highway a "state of the art" 40-foot-wide (12 m) concrete highway with a 100-foot (30 m)right-of-way. In August 1919, Commission director H.L. Wright tentatively designated the Dunes Highway asSR 43, to be 20 feet (6.1 m) wide. Narrower than anticipated, the new concrete highway was still superior to most Indiana roads, which, in the mid-1920s, were gravel or dirt with paved sections only between the larger towns. Dunes Highway construction began in 1922 under the guidance of Gary contractor Ingwald Moe and construction engineer Ezra Sensibar.[9]
US 20 was part of the first alignment of the Lincoln Highway in 1913 from the current SR 2 in Rolling Prairie to Elkhart, where the Lincoln Highway turned southeast on to current US 33. In 1926, the Lincoln Highway was rerouted toUS 30.[10][11]
Between 1917 and 1926, the route from Illinois state line to Michigan City was SR 43; this route was named Dunes Highway. At this time, US 20 from Michigan City to Ohio state line wasSR 25.[12][13] When US 20 was signed in Indiana, in 1926, the section from Illinois state line to Michigan City was concurrent with US 12 and the Dunes Highway.[14][15] In the early 1930s, US 20 from the Illinois state line to Michigan City was moved to its current route.[16][17] In the mid-1970s, US 20 Byp. went from US 31 to US 20, on the southwest side of South Bend. Until 1998, US 20 went through downtown Elkhart and South Bend. When the state of Indiana built the St. Joseph Valley Parkway, the route downtown was decommissioned.[18][19]
In 2005, a series of sharp curves around Rainbow Lake were removed; the curves were located six miles (9.7 km) west ofLaGrange. A new straight roadway was built, from just east of SR 5 to just east of CR 600 West.[20]
INDOT plans to make US 20 a four-lane highway with acenter turn lane from just east of SR 15 to SR 13. The project will be done in a two different phases. Phase one will be from SR 15 to ElkhartCR 35, and phase two will be from CR 35 to SR 13. The final phase is scheduled for completion around 2020.[20][21][22][needs update]
| County | Location | mi[1] | km | Exit [1][23] | Destinations | Notes |
|---|---|---|---|---|---|---|
| Lake | Hammond | 0.000 | 0.000 |    US 12 west /US 20 west /US 41 north /LMCT (Indianapolis Boulevard) –Chicago | Continuation intoIllinois | |
| 0.057– 0.364 | 0.092– 0.586 |        I-90 east /Indiana Toll Road east toI-80 /I-94 /US 6 /SR 51 | Exit 0 on I-90 / Toll Road | |||
| 1.314 | 2.115 |  US 41 south –Hammond | Eastern end of US 41 concurrency | |||
| East Chicago | 4.356 | 7.010 | Riley Road | ToSR 912 | ||
| 5.107 | 8.219 | US 12 /LMCT east (Columbus Drive) | Eastern end of US 12 concurrency | |||
| 5.809 | 9.349 |  SR 312 | ||||
| East Chicago–Hammond line | 7.131 | 11.476 |  SR 152 south –Hammond | |||
| Hammond | 8.127 | 13.079 | Kennedy Avenue | Interchange | ||
| Hammond–Gary line | 9.425– 9.771 | 15.168– 15.725 |  SR 912 south (Cline Avenue) /US 12 west /LMCT | Western end of US 12 concurrency; exit 8 on SR 912 | ||
| Gary | 14.737 | 23.717 |  SR 53 south (Broadway) –Merrillville | |||
 I-65 south –Indianapolis | Northern terminus of I-65 | |||||
| 16.376– 16.392 | 26.355– 26.380 | I-90 /Indiana Toll Road toI-80 /I-94 east | Exit 17 on I-90 / Toll Road | |||
| 17.668 | 28.434 | US 12 /LMCT east –Michigan City | Eastern end of US 12 concurrency | |||
| Lake Station | 19.880 | 31.994 | SR 51 south –Lake Station,Hobart | |||
| Porter | Portage | 23.504 | 37.826 |  SR 249 north (Crisman Road) | Southern terminus of SR 249 | |
| Burns Harbor | 26.067 | 41.951 |  SR 149 (Max Mochal) –South Haven | |||
| Burns Harbor–Porter line | 26.960– 27.213 | 43.388– 43.795 | I-94 –Chicago,Detroit | Exits 22A-B on I-94 | ||
| Porter | 30.306 | 48.773 |  SR 49 –Valparaiso,Porter | Cloverleaf interchange | ||
| Town of Pines | 36.452 | 58.664 |  SR 520 north (Maple Street) | Southern terminus of SR 520 | ||
| LaPorte | Michigan City | 39.934 | 64.268 | US 421 south –Westville | Northern terminus of US 421 | |
| 43.861 | 70.587 |  US 35 south /SR 212 north toUS 12Michigan Boulevard –Michigan City | Interchange; US 20 departs via exit ramps, SR 212 continues northerly; southern terminus of SR 212; northern terminus of US 35; western end of US 35 concurrency | |||
| Springfield Township | 44.866– 45.009 | 72.205– 72.435 | I-94 –Chicago,Detroit | Exits 40A-B on I-94 | ||
| 45.121 | 72.615 | US 35 south –LaPorte | Eastern end of US 35 concurrency | |||
| Springville | 48.682 | 78.346 |  SR 39 /Indiana Toll Road –LaPorte,New Buffalo | |||
| Rolling Prairie | 56.492 | 90.915 |  SR 2 –LaPorte,South Bend | Roundabout interchange[24][25] | ||
| 57.013 | 91.754 |  Lincoln Highway (Oak Knoll Road) | ||||
| St. Joseph | South Bend | 70.479 | 113.425 | 71 |   US 31 north (St. Joseph Valley Parkway north) /US 20 Bus. /Lincoln Highway toI-80 /I-90 /Indiana Toll Road –Niles MI. –South Bend,South Bend International Airport | Western end of US 31 concurrency; US 20 east joins theSt. Joseph Valley Parkway |
| Portage Township | 72.835 | 117.217 | 73 | SR 2 west Western Avenue | Eastern terminus of SR 2 | |
| 74.524 | 119.935 | 75 | Mayflower Road | No westbound exit to southbound Mayflower Road or eastbound entrance from northbound Mayflower Road | ||
| South Bend | 76.058 | 122.403 | 76 |  SR 23 –South Bend,North Liberty | ||
| 78.829 | 126.863 | 79 | US 31 south / Michigan Street –Plymouth,Indianapolis | Cloverleaf interchange; eastern end of US 31 concurrency | ||
| 80.714 | 129.897 | 82 | Ironwood Road | Single point urban interchange | ||
| Penn Township | 82.746 | 133.167 | 84 |  SR 331 south (Bremen Highway) –Mishawaka,Bremen | Western end of SR 331 concurrency | |
| 84.750 | 136.392 | 86 | SR 331 north / Elm Road | Eastern end of SR 331 concurrency | ||
| Elkhart | Elkhart | 92.058 | 148.153 | 92 |  SR 19 –Wakarusa,Nappanee,Elkhart | |
| 95.578 | 153.818 | 96 | US 33 south / Main Street –Elkhart,Goshen | Northern terminus of US 33 | ||
| 98.311 | 158.216 | 99A | Old US 20 –Elkhart | No eastbound exit | ||
| 98.671 | 158.796 | 99 | CR 17 toI-80 /I-90 /Indiana Toll Road | Eastern terminus of the St. Joseph Valley Parkway | ||
| Goshen | 102.096 | 164.308 |  SR 15 –Goshen,Bristol | |||
| Middlebury | 108.453 | 174.538 |  SR 13 (Main Street) –Millersburg,Middlebury | |||
| Lagrange | Shipshewana | 114.945 | 184.986 |  SR 5 –Ligonier,Shipshewana | ||
| Lagrange | 124.626 | 200.566 |  SR 9 (Detroit Street) –Rome City,Lagrange | |||
| Springfield Township | 131.58 | 211.76 |  SR 3 –Kendallville,Mongo | |||
| Steuben | Jackson Township | 136.242 | 219.260 |  SR 327 –Garrett,Orland | ||
| Angola | 143.095– 143.208 | 230.289– 230.471 | I-69 –Fort Wayne,Lansing | Exit 348 on I-69 | ||
| 145.669 | 234.432 |  SR 127 north / Wayne Street –Fremont | Roundabout; southern terminus of SR 127 | |||
| Scott Township | 150.017 | 241.429 |  SR 1 south –Hamilton | Northern terminus of SR 1 | ||
| York Township | 155.734 | 250.630 |  US 20 east –Toledo | Continuation into Ohio | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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