Interstate 80

Last updated

I-80.svg

Interstate 80
Interstate 80
I-80 highlighted in red
Route information
Length2,899.59 mi [1] (4,666.44 km)
Existed1956–present
HistoryCompleted in 1986
Major junctions
West endUS 101.svg US 101 in San Francisco, CA
 
East endI-95.svg I-95 in Teaneck, NJ
Location
States California, Nevada, Utah, Wyoming, Nebraska, Iowa, Illinois, Indiana, Ohio, Pennsylvania, New Jersey
Highway system

Interstate 80 (I-80) is an east–west transcontinental freeway in the United States that runs from downtown San Francisco, California, to Teaneck, New Jersey, in the New York City Metropolitan Area. The highway was designated in 1956 as one of the original routes of the Interstate Highway System. Its final segment was opened to traffic in 1986. It is the second-longest Interstate Highway in the United States, following I-90. The Interstate runs through many major cities including Oakland, Sacramento, Reno, Salt Lake City, Omaha, Des Moines, and Toledo, and passes within 10 miles (16 km) of Chicago, Cleveland, and New York City.

Contents

I-80 is the Interstate Highway that most closely approximates the route of the historic Lincoln Highway, the first road across the United States. The highway roughly traces other historically significant travel routes in the Western United States: the Oregon Trail across Wyoming and Nebraska, the California Trail across most of Nevada and California, the first transcontinental airmail route, and except in the Great Salt Lake area, the entire route of the First Transcontinental Railroad. From near Chicago east to near Youngstown, Ohio, I-80 is a toll road, containing the majority of both the Indiana Toll Road and the Ohio Turnpike. I-80 runs concurrently with I-90 from near Portage, Indiana, to Elyria, Ohio. In Pennsylvania, I-80 is known as the Keystone Shortway, a non-tolled freeway that crosses rural north-central portions of the state on the way to New Jersey and New York City.

Route description

Lengths
  mi [1] km
CA 199.24320.65
NV 410.67660.91
UT 196.34315.98
WY 402.76648.18
NE 455.32732.77
IA 303.23488.00
IL 163.52263.16
IN 151.56243.91
OH 237.48382.19
PA 311.12500.70
NJ 68.35110.00
Total2,899.594,666.44
I-80 Eastshore Fwy.jpg
I-80 is a major urban freeway in the San Francisco Bay Area
RenoI80.JPG
I-80 descending into Reno from the Sierra Nevada
02162008 Interstate80NWUtah.JPG
Mountains of the Great Salt Lake as seen approaching Salt Lake City from the west
2015-05-09 14 45 12 View east along Interstate 80 and U.S. Route 30 in Green River, Wyoming approaching the Green River Tunnel.jpg
Green River Tunnel in Green River, Wyoming, one of three sets of tunnels along I-80
I-80 in western Iowa.jpg
I-80 near Walnut, Iowa
WB I-80 before the I-94-IL 394 interchange in Lansing, IL.jpg
Westbound Kingery Expressway in Lansing, Illinois
Eastbound Borman Expressway, Hammond, Indiana.jpg
The Borman Expressway in Hammond, Indiana, approaching exit 3
Cuyahoga Valley overlooking I-80 Ohio Turnpike.jpg
I-80 Ohio Turnpike at the Cuyahoga River
I80 Highest Point.jpg
Sign noting the highest point on I-80 east of the Mississippi River located in Clearfield County, Pennsylvania
2014-05-07 16 21 42 View of the eastern end of Interstate 80 from an airplane heading for Newark Airport-cropped.JPG
The eastern end of I-80 in Bergen County, New Jersey. Visible at the top of the photo are the George Washington Bridge and New York City.

California

I-80 begins at an interchange with U.S. Route 101 (US 101) in San Francisco, and then crosses the San Francisco–Oakland Bay Bridge into Oakland. It then heads northeast through Vallejo, Sacramento, and the Sierra Nevada mountains before crossing into Nevada.

A portion of the route through Pinole involved the experimental transplantation of the rare species Santa Cruz tarweed in the right-of-way.

Nevada

In Nevada, I-80 traverses the northern portion of the state. The freeway serves the RenoSparks metropolitan area, and it also goes through the towns of Fernley, Lovelock, Winnemucca, Battle Mountain, Elko, Wells, and West Wendover on its way through the state.

The Nevada portion of I-80 follows the paths of the Truckee and Humboldt rivers, which have been used as a transportation corridor since the California Gold Rush of the 1840s. The Interstate also follows the historical routes of the California Trail, First Transcontinental Railroad, and Feather River Route throughout portions of the state. I-80 in Nevada closely follows, and at many points directly overlaps, the original route of the Victory Highway, State Route 1, and US 40.

Utah

After crossing Utah's western border in Wendover, I-80 crosses the desolate Bonneville Salt Flats west of the Great Salt Lake. The longest stretch between exits on an Interstate Highway is located between Wendover and Knolls, with 37.4 miles (60.2 km) between those exits. [2] This portion of I-80, crossing the Great Salt Lake Desert, is extremely flat and straight, dotted with large warning signs about driver fatigue and drowsiness.

East of the salt flats, I-80 passes the southern edge of Great Salt Lake and continues on through Salt Lake City, where it merges with I-15 for three miles (4.8 km) before entering the Wasatch Mountains east of the city. It ascends Parley's Canyon and passes within a few miles of Park City as it follows a route through the mountains towards the junction with the eastern terminus of the western section of I-84. From the junction it continues up Echo Canyon and on towards the border with Wyoming, near Evanston.

The route of the Utah section of I-80 is defined in Utah Code Annotated § 72-4-113(10). [3]

Wyoming

In Wyoming, I-80 reaches its maximum elevation of 8,640 feet (2,630 m) above sea level [4] at Sherman Summit, near Buford, which at 8,000 feet (2,400 m) is the highest community on I-80. Farther west in Wyoming, the Interstate passes through the dry Red Desert and over the Continental Divide. In a way, the highway crosses the Divide twice, since two ridges of the Rocky Mountains split in Wyoming, forming the endorheic Great Divide Basin, from which surface water cannot drain, but can only evaporate.

Nebraska

I-80 enters Nebraska west of Bushnell. The western portion of I-80 in Nebraska runs very close to the state of Colorado, without entering the state. The intersection of I-76 and I-80 is visible from the Colorado–Nebraska state line. From its intersection with I-76 to Grand Island, I-80 lies in the valley of the South Platte River and the Platte River.

The longest straight stretch of Interstate anywhere in the Interstate Highway System is the approximately 72 miles (116 km) of I-80 occurring between exit 318 in the Grand Island area and mile marker 390 near Lincoln. Along this length, the road does not vary from an ideally straight line by more than a few yards. After Lincoln, I-80 turns northeast towards Omaha. It then crosses the Missouri River in Omaha to enter the state of Iowa. Part of I-80 in Nebraska is marked as a Blue Star Memorial Highway.

Iowa

I-80 is the longest Interstate Highway in Iowa. It extends from west to east across the central portion of the state through the population centers of Council Bluffs, Des Moines and the Quad Cities. [5] It enters the state at the Missouri River in Council Bluffs and heads east through the southern Iowa drift plain. In the Des Moines area, I-80 meets up with I-35 and the two routes bypass Des Moines together. In Ankeny, the Interstates split and I-80 continues east. In eastern Iowa, it provides access to the University of Iowa in Iowa City. Northwest of the Quad Cities in Walcott is Iowa 80, the World's Largest Truckstop. I-80 passes along the northern edge of Davenport and Bettendorf and leaves Iowa via the Fred Schwengel Memorial Bridge over the Mississippi River into Illinois. The majority of the highway runs through farmland, [5] yet roughly one-third of Iowa's population live along the I-80 corridor. [6]

Illinois

In Illinois, I-80 runs from the Fred Schwengel Memorial Bridge across the Mississippi River south to an intersection with I-74. It then runs east across north-central Illinois just north of the Illinois River to Joliet. I-80 continues east and joins I-94 just before entering Indiana.

Indiana

In Indiana, I-80 runs concurrently with another Interstate Highway for its entire length. It runs with I-94 on the Borman Expressway from the Illinois state line to Lake Station, Indiana, and the Indiana Toll Road with I-90 from Lake Station to the Ohio state line.

Between LaPorte and the Greater Toledo, Ohio, area, I-80/I-90 is located within 10 miles (16 km) of the Michigan state line, but does not enter that state. From the State Road 9 (SR 9) and I-80/I-90 interchange, the sign marking the Indiana–Michigan state line is visible. I-80/I-90 passes through the South Bend metropolitan area, passing the University of Notre Dame and the University Park Mall, intersecting with the St. Joseph Valley Parkway. At another point in northern Indiana, I-80/I-90 comes within about 200 yards (180 m) from the Michigan border. [7]

Ohio

In Ohio, I-80 enters with I-90 from the Indiana Toll Road and immediately becomes the Ohio Turnpike. The two Interstates cross rural northwest Ohio and run just south of the metropolitan area of Toledo. In Rossford, the turnpike intersects I-75 in an area known as the Crossroads of America. This intersection is one of the largest intersections of three Interstate Highways in the United States.[ citation needed ]

In Elyria Township, just west of Cleveland, I-90 splits from I-80, leaving the turnpike and running northeast as a freeway. I-80 runs east-southeast through the southern suburbs of Cleveland. Just northwest of Youngstown, the Ohio Turnpike continues southeast as I-76, while I-80 exits the turnpike and runs east to the north of Youngstown, entering Pennsylvania south of Sharon, Pennsylvania.

Pennsylvania

In Pennsylvania, I-80 is the main east–west freeway through the central part of the state. It runs from the Ohio state line near Sharon to the Delaware Water Gap Toll Bridge over the Delaware River and is called the "Z.H. Confair Memorial Highway".

It traverses the extreme northern section of the Pittsburgh metropolitan area. I-80 serves as the western terminus for I-376 which connects it to the Pittsburgh International Airport and on to downtown and suburban Pittsburgh. I-80 intersects I-79, which connects with Erie (about 75 miles [121 km] to the north) and Pittsburgh (about 55 miles [89 km] to the south). Further east, I-99 connects with State College and Altoona. A spur from I-80 (I-180) runs to Williamsport. Upon entering the Pocono Mountains, I-80 meets I-81, connecting Syracuse, New York and Harrisburg, and I-476 which connects with Scranton, Wilkes-Barre, Allentown and Philadelphia. Another spur (I-380) runs to Scranton.

In Clearfield County, I-80 reaches its highest elevation east of the Mississippi River, 2,250 feet (686 m), although other Interstate Highways east of the Mississippi, including I-26 in North Carolina and Tennessee, reach higher elevations.

In 2007, the Pennsylvania Turnpike Commission (PTC), combined with state legislature Act No. 44, initiated plans to enact a tolling system on the entire span of I-80 throughout the Commonwealth of Pennsylvania. On October 15, 2007, the Pennsylvania Department of Transportation (PennDOT) and the PTC signed a 50-year lease agreement, which would allow the PTC to maintain and, eventually, toll I-80. [8] However, the application for a toll was rejected by the Federal Highway Administration. [9]

New Jersey

The portion of I-80 that goes through New Jersey is called the Bergen–Passaic Expressway. [10] [ self-published source ]

I-80 does not enter New York City. Once the I-95/New Jersey Turnpike was extended in 1971 from its former terminus at US 46 in Ridgefield to I-80 in Teaneck the section from Teaneck to Fort Lee was resigned as I-95, and it is the latter roadway that enters New York City via the George Washington Bridge. I-80's designated end (as per signage and New Jersey Department of Transportation documents) is four miles (6.4 km) [11] short of New York City in Teaneck, before the Degraw Avenue overpass. There, signs designate the end of I-80 and the beginning of I-95/New Jersey Turnpike northbound.

Therefore, the fact that exit numbers on I-95 beyond the end of I-80 appear to be a continuation of I-80 exit numbers is a coincidence. They match what would have been the correct mile markers of I-95 had the Somerset Freeway been built.[ citation needed ]

One section of I-80 running from Netcong to Denville was constructed in 1958. It is one of the oldest sections of Interstate Highway in the United States.[ citation needed ]

History

I-80 was included in the original plan for the Interstate Highway System as approved in 1956. The highway was built in segments, with the final piece of I-80 completed in 1986 on the western edge of Salt Lake City. This piece was coincidentally dedicated close to the 30th birthday of the Interstate Highway System, which was noted at the dedication and considered to be a milestone in the history of highway construction in the United States. [12] It was also noted at the dedication that this was only 50 miles (80 km) south of Promontory Summit, where another first in a transcontinental artery was completed—the golden spike of the United States First Transcontinental Railroad. [13]

Geological study

John McPhee described the geology revealed by the building of Interstate 80 in a series of books on the formation of the continent of North America, books that were published between 1981 and 1993 and collected in a one-volume edition in 1998 " Annals of the Former World " which won a Pulitzer prize in 1999. In "Basin and Range" (1981), he described how the idea emerged in a conversation with Princeton geologist Kenneth S. Deffeyes: "What about Interstate 80, I asked him. It goes the distance. How would it be? 'Absorbing,' he said. And he mused aloud: After 80 crosses the Border Fault, it pussyfoots along on morainal till that levelled up the fingers of the foldbelt hills. It does a similar dance with glacial debris in parts of Pennsylvania. It needs no assistance on the craton. It climbs a ramp to the Rockies and a fault-block staircase up the front of the Sierra. It is geologically shrewd. It was the route of animal migrations, and of human history that followed. It avoids melodrama, avoids the Grand Canyons, the Jackson Holes, the geologic operas of the country, but it would surely be a sound experience of the big picture, of the history, the construction, the components of the continent." [14]

Junction list

California
US 101.svg US 101 in San Francisco
I-880.svg I-880 in Oakland
I-580.svg I-580 on the Oakland–Emeryville city line. The highways travel concurrently to Albany.
I-780.svg I-780 in Vallejo
I-680.svg I-680 in Fairfield
I-505.svg I-505 in Vacaville
I-305.svgUS 50.svg I-305 / US 50 in West Sacramento
I-5.svg I-5 in Sacramento
Nevada
I-580.svgUS 395.svg I-580 / US 395 in Reno
US 95.svg US 95 south-southwest of Lovelock. The highways travel concurrently to Winnemucca.
US 93.svg US 93 in Wells
Utah
I-215.svg I-215 in Salt Lake City
I-15.svg I-15 in Salt Lake City. The highways travel concurrently to South Salt Lake.
US 89.svg US 89 in South Salt Lake
I-215.svg I-215 southeast of Salt Lake City
US 40.svgUS 189.svg US 40 / US 189 in Silver Creek Junction. I-80/US 189 travels concurrently to east-northeast of Evanston, Wyoming.
I-84.svg I-84 in Echo
Wyoming
US 30.svg US 30 in Little America. The highways travel concurrently to south-southeast of Walcott.
US 191.svg US 191 in Purple Sage. The highways travel concurrently to Rock Springs.
US 287.svg US 287 east of Rawlins. The highways travel concurrently to south-southeast of Walcott.
US 287.svg US 287 in Laramie
US 30.svg US 30 southeast of Laramie. The highways travel concurrently to southwest of Cheyenne.
I-25.svgUS 87.svg I-25 / US 87 southwest of Cheyenne
I-180.svgUS 85.svg I-180 / US 85 on the Fox Farm–Cheyenne line
US 30.svg US 30 east-northeast of Cheyenne. The highways travel concurrently to Pine Bluffs.
Nebraska
I-76.svg I-76 southwest of Big Springs
US 26.svg US 26 in Ogallala
US 83.svg US 83 in North Platte
US 283.svg US 283 south of Lexington
US 183.svg US 183 south of Elm Creek
US 34.svgUS 281.svg US 34 / US 281 south of Grand Island
US 81.svg US 81 in York
US 6.svg US 6 in Lincoln
US 77.svg US 77 in Lincoln. The highways travel concurrently to north-northeast of Lincoln.
I-180.svgUS 34.svg I-180 / US 34 in Lincoln
US 6.svg US 6 in Waverly
US 275.svg US 275 in Omaha
I-680.svg I-680 in Omaha
I-480.svgUS 75.svg I-480 / US 75 in Omaha
Iowa
I-29.svg I-29 in Council Bluffs. The highways travel concurrently through Council Bluffs.
US 6.svg US 6 in Council Bluffs
I-880.svg I-880 northwest of Minden
US 59.svg US 59 in Avoca
US 6.svgUS 71.svg US 6 / US 71 north-northeast of Lorah. I-80/US 6 travel concurrently to De Soto.
US 6.svgUS 169.svg US 6 / US 169 in De Soto
I-35.svgI-235.svg I-35 / I-235 in West Des Moines. I-35/I-80 travels concurrently to Ankeny.
US 6.svg US 6 on the CliveUrbandale city line
US 69.svg US 69 in Des Moines
I-35.svgI-235.svg I-35 / I-235 in Ankeny
US 65.svg US 65 in Altoona. The highways travel concurrently through Altoona.
US 6.svgUS 65.svg US 6 / US 65 in Altoona. I-80/US 6 travels concurrently to Newton.
US 63.svg US 63 south of Malcom
US 151.svg US 151 east-northeast of Williamsburg
I-380.svgUS 218.svg I-380 / US 218 on the TiffinCoralville city line
US 6.svg US 6 north-northwest of Wilton. The highways travel concurrently to Davenport.
I-280.svgUS 6.svgUS 61.svg I-280 / US 6 / US 61 in Davenport. I-80/US 61 travels concurrently through Davenport.
I-74.svg I-74 in Davenport
US 67.svg US 67 in Le Claire
Illinois
I-88.svg I-88 in East Moline
US 6.svg US 6 in Colona
I-74.svgI-280.svg I-74 / I-280 in Colona
I-180.svg I-180 northeast of Princeton
I-39.svgUS 51.svg I-39 / US 51 in LaSalle
I-55.svg I-55 in Channahon
US 52.svg US 52 in Joliet
US 30.svg US 30 in New Lenox
I-355.svg I-355 in New Lenox
US 45.svg US 45 on the MokenaOrland ParkTinley Park city line
I-57.svg I-57 in Country Club Hills
I-294.svg I-294 in Hazel Crest. The highways travel concurrently to the South HollandLansing village line.
I-94.svgI-294.svg I-94 / I-294 on the South Holland–Lansing village line. I-80/I-94 travels concurrently to Lake Station, Indiana.
US 6.svg US 6 in Lansing. The highways travel concurrently to Lake Station, Indiana.
Indiana
US 41.svg US 41 in Hammond. The highways travel concurrently through Hammond.
I-65.svg I-65 in Gary
I-90.svgI-94.svg I-90 / I-94 in Lake Station. I-80/I-90 travels concurrently to northwest of Elyria, Ohio.
US 421.svg US 421 southeast of Otis
US 31.svg US 31 in South Bend
US 131.svg US 131 north-northeast of Middlebury
I-69.svg I-69 west-northwest of Fremont
Ohio
US 20.svg US 20 in Maumee
I-75.svg I-75 in Perrysburg
I-280.svg I-280 northeast of Stony Ridge
US 250.svg US 250 north-northwest of Milan
I-480.svg I-480 in North Ridgeville
I-71.svgUS 42.svg I-71 / US 42 in Strongsville
I-77.svg I-77 on the RichfieldBrecksville line
I-480.svg I-480 in Streetsboro
I-76.svg I-76 east-southeast of North Jackson
I-680.svg I-680 in Mineral Ridge
US 422.svg US 422 in Girard
US 62.svg US 62 north of Hubbard
Pennsylvania
I-376.svg I-376 south of Hermitage
US 19.svg US 19 south of Mercer
I-79.svg I-79 northwest of Grove City
US 322.svg US 322 west of Corsica
US 219.svg US 219 east-northeast of Falls Creek
I-99.svgUS 220.svg I-99 / US 220 northwest of Zion. I-80/US 220 travels concurrently to east of Mackeyville.
US 15.svg US 15 north of New Columbia
I-180.svg I-180 northeast of New Columbia
US 11.svg US 11 in Lime Ridge
I-81.svg I-81 north-northwest of Drums
I-476.svg I-476 east of East Side
I-380.svg I-380 south-southwest of Pocono Summit
US 209.svg US 209 in Arlington Heights. The highways travel concurrently to east of East Stroudsburg.
New Jersey
US 46.svg US 46 in Columbia
US 206.svg US 206 west of Stanhope. The highways travel concurrently to south-southeast of Netcong.
US 46.svg US 46 in Netcong
US 46.svg US 46 east of Rockaway
US 202.svg US 202 in Parsippany-Troy Hills
I-287.svg I-287 in Parsippany-Troy Hills
I-280.svg I-280 in Parsippany-Troy Hills
US 46.svg US 46 in Parsippany-Troy Hills
US 46.svg US 46 in Wayne
I-95.svg I-95 in Teaneck

See also

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U.S. Route 322 is a 494 mi (795.0 km) long, east–west United States Highway, traversing Ohio, Pennsylvania, and New Jersey. The road is a spur of U.S. Route 22 and one of the original highways from 1926. A portion of it at one time was concurrent with the Lakes-to-Sea Highway.

U.S. Route 441 highway in the United States

U.S. Route 441 (US 441) is a 939-mile-long (1,511 km) auxiliary route of U.S. Route 41. It extends from US 41 in Miami, Florida to US 25W in Rocky Top, Tennessee. Between its termini, US 441 travels through the states of Florida, Georgia, North Carolina, and Tennessee. The highway acts as a connector between several major urban areas, including Miami, Orlando, Ocala, Gainesville, Athens, and Knoxville. It also crosses the Great Smoky Mountains National Park, where it meets the southwestern end of the Blue Ridge Parkway, and where no trucks or other commercial traffic are allowed.

U.S. Route 250 is a route of the United States Numbered Highway System, and is a spur of U.S. Route 50. It currently runs for 514 miles (827 km) from Richmond, Virginia to Sandusky, Ohio. It passes through the states of Virginia, West Virginia, and Ohio. It goes through the cities of Richmond, Charlottesville, Staunton, and Waynesboro, Virginia; and Wheeling, West Virginia. West of Pruntytown, West Virginia, US 250 intersects and forms a short overlap with its parent US 50.

Interstate 80 (I-80) is a part of the Interstate Highway System that runs from San Francisco, California, to Teaneck, New Jersey. The portion of the highway in the U.S. state of Utah is 196.35-mile-long (315.99 km), through the northern part of the state. From west to east, I-80 crosses the state line from Nevada in Tooele County and traverses the Bonneville Salt Flats—which are a part of the larger Great Salt Lake Desert. It continues alongside the Wendover Cut-off—the corridor of the former Victory Highway—U.S. Route 40 (US-40) and the Western Pacific Railroad Feather River Route. After passing the Oquirrh Mountains, I-80 enters the Salt Lake Valley and Salt Lake County. A short portion of the freeway is concurrent with I-15 through Downtown Salt Lake City. At the Spaghetti Bowl, I-80 turns east again into the mouth of Parley's Canyon and Summit County, travels through the mountain range and intersects the eastern end of I-84 near Echo Reservoir before turning northeast towards the Wyoming border near Evanston. I-80 was built along the corridor of the Lincoln Highway and the Mormon Trail through the Wasatch Range. The easternmost section also follows the historical routes of the First Transcontinental Railroad and US-30S.

Several special routes of U.S. Route 30 exist. In order from west to east they are as follows.

References

  1. 1 2 Adderly, Kevin (January 27, 2016). "Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2015". Route Log and Finder List. Federal Highway Administration . Retrieved July 17, 2016.
  2. Carey, Anne (August 15, 2011). "Top 16 longest gaps between Interstate exits". USA Today . Retrieved January 17, 2017.
  3. Utah State Legislature.  72-4-113(10)". Utah Code Annotated. Archived from the original on February 27, 2014. Retrieved January 29, 2013.
  4. Wyoming Department of Transportation (2010). Official State Highway Map of Wyoming (Map). c. 1:1,140,480. Cheyenne: Wyoming Department of Transportation. §§ G1–H10.
  5. 1 2 Google (August 9, 2012). "Intersate 80 in Iowa" (Map). Google Maps . Google. Retrieved August 9, 2012.
  6. Staff (March 29, 2010). "Population grows in I-80, U.S. 30 corridors". Daily Times Herald. Carroll, IA. Archived from the original on September 15, 2012. Retrieved August 12, 2012.
  7. "Microsoft Research – Emerging Technology, Computer, and Software Research". Microsoft Research. Archived from the original on September 17, 2012. Retrieved June 6, 2020.
  8. Nussbaum, Paul (October 17, 2007). "I-80 toll plans moving forward". The Philadelphia Inquirer .[ dead link ]
  9. Federal Highway Administration Public Affairs (April 6, 2010). "Federal Highway Administration Declines Pennsylvania Request to Toll I-80" (Press release). Federal Highway Administration. Retrieved October 4, 2014.
  10. "Interstate 80 (New Jersey)". The Roads of Metro New York. Retrieved October 4, 2014.[ self-published source ]
  11. Measured in Google Earth from I-80 end sign (visible in Street View) to the beginning of the George Washington Bridge
  12. Weingroff, Richard (Fall 1986). "America Celebrates 30th Anniversary of the Interstate System". U.S. Highways. Federal Highway Administration.
  13. "Around the Nation: Transcontinental Road Completed in Utah". The New York Times . Associated Press. August 25, 1986. OCLC   1645522 . Retrieved May 13, 2013.
  14. McPhee, John (2000). Annals of the Former World. New York: Farrar, Straus and Giroux. pp. 36–37.

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