Interstate 80 is a major transcontinental corridor connecting California and New York City. From the city of San Francisco to a few miles west of the Hudson River in northern New Jersey, I-80 traverses various terrain and states. Its highest point is located at Sherman Hill Summit in Wyoming between Laramie and Cheyenne at an elevation of 8640 feet. The highest point of Interstate 80 east of the Mississippi is near Milepost 111 in Pennsylvania.
Although Interstate 80 begins at U.S. 101 in San Francisco, original plans called for the Interstate to continue west through Golden Gate Park to the Pacific Ocean near the famous Ocean Beach area. This plan was halted due to community opposition.
In the east, Interstate 80 ends at its junction with Interstate 95 in Ridgefield Park, New Jersey, as overhead signage shows. However, at I-80’s eastern terminus, there is some debate as to whether or not it ends at the Hudson River or at Interstate 95. The exit numbering on Interstate 95 north of Interstate 80 in New Jersey seems to approximate what the I-80 numbering would be if it continued east to the George Washington Bridge. However, that numbering is actually what would be for I-95 if it had been completed as planned in New Jersey. It is a coincidence that the exit numbers are so close numerically.
Heading southbound on Interstate 95 toward Interstate 80 from the George Washington Bridge to I-80’s eastern terminus, overhead signs are posted as I-95 to I-80. It should also be noted that while U.S. 46 ends at the George Washington Bridge, I-80 does not, which in turn causes more confusion.
High Priority Corridor
Interstate 80 in New Jersey is part of High Priority Corridor 63: Liberty Corridor.
Parallel U.S. Routes
Interstate 80 largely replaced its companion U.S. routes in the West and parallels them in the East. Between San Francisco and Park City, Interstate 80 replaced U.S. 40. Sections of original U.S. 40 are still in use as local county roads in California, while many segments of U.S. 40 in Nevada were directly replaced by I-80. Today, U.S. 40 begins its easterly journey at its interchange with I-80 in Park City. Between Park City and Echo Junction, I-80 replaced U.S. 189 (and U.S. 530 before it). At Echo Junction, Interstate 80 met its companion for most of its country-country trek: U.S. 30.
U.S. 30 is the Lincoln Highway through Wyoming, Nebraska, Iowa, Illinois, Indiana and Ohio. It closely parallels Interstate 80 in Wyoming and Nebraska, combining with the freeway in the least populated areas (such as the continuously merged portion of I-80 and U.S. 30 between Granger and Walcott in Wyoming, a distance of 170 miles). At Grand Island, Nebraska, U.S. 30 veers away from the freeway to the north of Lincoln and Omaha; Interstate 80 instead follows U.S. 34 between Grand Island and Lincoln and U.S. 6 from Lincoln to the Quad Cities via Omaha and Des Moines. Additionally U.S. 6 merges with I-80 several times through Iowa, and it closely parallels the freeway through Illinois before joining the freeway again in Lansing.
Meanwhile, Interstate 80 does not intersect U.S. 30 until Joliet. Having avoided Des Moines and the Quad Cities, U.S. 30 heads southeast to avoid Downtown Chicago. U.S. 30 continues on this trajectory en route to Fort Wayne, Pittsburgh and Philadelphia; it does not intersect I-80 again. Interstate 80 instead remains close to U.S. 6 and U.S. 20 as they skirt the southern edge of the Great Lakes. I-80 is tolled through Indiana and Ohio, so the parallel U.S. 6 and U.S. 20 provide free alternate routes.
Bypassing Cleveland to the south, Interstate 80 leaves both U.S. 6 and U.S. 20, as they follow Interstate 90. For the first time, Interstate 80 follows a path that was not previously tread by a U.S. route (it followed the Keystone Shortway). Leaving the Ohio Turnpike at North Jackson, I-80 briefly parallels U.S. 62 through Sharon, then again finds itself without a companion U.S. route. This solo route continues for the most part across Pennsylvania, with the exception of U.S. 322 from Clarion to State College and a brief merge with U.S. 220 near State College. Finally entering New Jersey, Interstate 80 picks up U.S. 46, a route which is almost entirely located within New Jersey — it never went any farther west than Pennsylvania 611 (former U.S. 611). U.S. 46 follows I-80 all the way to its end in Ridgefield Park.
Interstate 80 Split Routes
No other Interstate highway had as many split routes as Interstate 80. No fewer than five suffixed routes split from I-80 at varying intervals prior to 1980; none of these split routes remain today. These routes included (from west to east):
- Interstate 80N from Portland, Oregon, to Echo Junction, Utah (now Western Interstate 84)
- Interstate 80S from Denver, Colorado, to Big Springs, Nebraska (now Western Interstate 76)
- Interstate 80N from Interstate 29 to Interstate 80 north of Council Bluffs, Iowa (now Interstate 680)
- Interstate 80S from Norwalk, Ohio, to Camden, New Jersey (the portion between Norwalk and Westfield Center was not constructed; the rest is now Eastern Interstate 76)
- Interstate 80N from Norwalk, Ohio, to northwest of Youngstown, Ohio (parts of which are now Interstate 480)
Long-range plans originally called for the expansion of Interstate 80 in Nebraska to three lanes from Lincoln west to near Kearney. The project schedule was divided into phases: Phase 1 – between Omaha and Lincoln originally slated for completion by 2012 (final work at Exit 395 wrapped up Spring 2016); Phase 2 – between Lincoln and York originally proposed for completion by 2022; Phase 3 – between York and Grand Island originally proposed for completion by 2028; and Phase 4 – between Grand Island and Minden interchange (Exit 279, N-10) near Kearney originally proposed for completion by 2037.13 Work west of NW 56th Street and Lincoln was not highlighted on the previous Nebraska Department of Roads – I-80 Six Lane Expansion web page as of 2016.
Construction through 2022 reconfigures the concurrent section of Interstates 29 and 80 through Council Bluffs, Iowa and I-80 northeast to Exit 8 with U.S. 6 (Kanesville Boulevard). Work separates the two freeways onto a dual freeway. The West and East System Interchanges joining the two routes will be redesigned to eliminate of all left-hand movements with new high speed flyovers. Four local interchanges along Interstate 80 will also be redesigned.
Phase I of the East System Interchange was completed from July 2014 to March 2016. The westbound lanes will be finished by December 2017 while eastbound traffic will encounter construction to August 2021. Prior work between 2008 and 2012 expanded the Missouri River Bridge to seven lanes with the option to restripe the bridge to accommodate ten overall lanes. See the Iowa DOT – Council Bluffs Interstate System Improvement Program web site for more details.
Within San Francisco, the western terminus of Interstate 80 was originally proposed to be at Interstate 280 (which was briefly considered as part of Interstate 480) in Golden Gate Park. The Western Freeway (I-80) would have originated at U.S. 101 / Central Freeway and traveled west toward the park, straddling Fell Street and Oak Street along the way. Once at the park, the freeway would have entered a major interchange with I-280, making an odd case where a parent route would have ended at one of its child routes. However, that situation never came to pass. The freeway was never built as a result of substantial protests, and the western terminus of Interstate 80 was retracted to U.S. 101 / Central Freeway.
Since the Central Freeway viaduct was mostly torn down, I-80 now ends at the series of U.S. 101 exits near Van Ness Avenue. This terminus is somewhat in dispute; some say that Interstate 80 actually ends at the Embarcadero exit. See the AARoads Guide for Interstate 80 in California for more history and information.
The San Francisco-Oakland Bay Bridge was dedicated on January 14, 1939.9 The bridge initially carried U.S. 40-50 across the bay; it was later redesignated as part of Interstate 80.
The first iteration of the Yolo Causeway, which carries Interstate 80 over the Yolo Bypass west of Sacramento and east of Davis, was completed in 1916. This causeway was the first highway project in the state of California to be financed with the sale of highway bonds; it has been expanded since the original facility opened.
Development of large sections of the U.S. 40 freeway (now I-80) between San Francisco and Reno occurred by 1947, excepting certain sections (including much of the route in the mountains). The first Interstate in California to open using funds designated by the Federal Highway Act of 1956 was Interstate 80. In the Sierra Nevada northeast of Sacramento, U.S. 40 was converted into Interstate 80 between 1960 and 1964. The first 50 miles were built in 1960, and the ten-mile stretch over Donner Summit and through the Truckee River Canyon to the city of Truckee was constructed in 1964.8
San Francisco-Oakland Bay Bridge
The San Francisco-Oakland Bay bridge, opened to traffic on November 12, 1936 as the route for both U.S. 40 and 50, carries Interstate 80 across San Francisco Bay. The span consisted of three segments: the western suspension bridge with four towers, the Yerba Buena Tunnel on Yerba Buena Island, and the eastern cantilever through truss bridge. Earthquake retrofitting between 1994 and 2004 reinforced the suspension bridge west from Yerba Buena Island, bringing the span to current specifications. The eastern span was not reinforced and instead was replaced during an 11-year construction project commencing in 2002. The new Bay Bridge, a single-anchored suspension bridge with a lone tower, opened to traffic on September 2, 2013. This span accommodates side by side traffic rather than a double deck like its predecessor. It ties into a new causeway from the east and includes a bike/pedestrian path to Yerba Buena Island. The old bridge closed on August 28, 2012 and dismantling efforts continue into 2016.
The last section of transcontinental Interstate 80 to be completed in any state was the segment west of Salt Lake City, Utah, between Redwood Road and 5600 West. This section was dedicated and opened to traffic on August 22, 1986, and it was the first transcontinental Interstate highway to be completed from coast to coast.7
For a history of the completion of Interstate 80 in Wyoming, visit Interstate 80 – Wyoming.
A ribbon-cutting ceremony preceded a motorcade led by Governor Frank Morrison on August 12, 1961 to celebrate the completion of Interstate 80 between Omaha and Lincoln. The 52-mile stretch was dedicated at the Greenwood interchange.14 The final link of Interstate 80 in Nebraska to open was the section around Sidney, on October 19, 1974.7
Interstate 80 was widened from four to six lanes between Lincoln and Omaha. The 45-mile project extended from just west of Northwest 48th Street in West Lincoln (Exit 395) to the Nebraska 370 interchange in West Omaha (Exit 439). The project began in 2002 and was vastly completed on November 8, 201315, with the exception of eastbound lanes at Lincoln and the diverging diamond interchange (DDI) project at NW 48th Street (Exit 395). This work followed previous projects in the late 1990s and early 2000s that widened I-80 to six lanes between Nebraska 370 and Interstate 680, and to ten lanes between I-680 and Interstate 480.1
In early 2006, widening to six lanes was completed from Ruff Road (Milepost 429) to Nebraska 370 (Milepost 439). Expansion followed between the Nebraska 66/Mahoney State Park Interchange (Exit 326) and Ruff Road (Milepost 429). This included rebuilding/widening of the long twin I-80 bridges over the Platte River near milepost 427. As of December 2006, the new three-lane westbound bridge over the Platte River was under construction while traffic was maintained on the old twin two-lane bridges just to the south. The new eastbound span later opened on January 4, 2008, nine months ahead of schedule, as part of an overall eastbound lane opening between Mahoney State Park and Ruff Road. Removal of the old bridges and side work continued to fall 2008. The $45-million project to replace the Platte River bridges started in August 2002.16
Meanwhile, widening to six lanes through northwest of Lincoln between the U.S. 77 South / Beatrice Interchange (Exit 397) and the Interstate 180/U.S. 34 Interchange (Exit 401) was slated for completion in early 2007. Just east of here, widening/rebuilding of the mainline commenced in early 2007 for the section between Interstate 180 and the U.S. 77 North/56th Street Interchange (Exit 405). However, the actual interchange between Interstate 80 and Interstate 180 was not rebuilt until late in the overall project (2010-2012).12 Widening of I-80 between Exits 420 (Greenwood) and 426 was completed in July 2012.17
The DDI at NW 48th Street was built as part of I-80 expansion west from U.S. 77 (Exit 397) to NW 56th Street. The $30-million project runs from 2014 to 2016.18
Interstate 80 across Omaha, from Harrison Street (near Exit 442) to the Iowa state line, was rebuilt over a ten year period starting in the spring of 1989. The $325-million overhaul included expanding I-80 from six to ten lanes between I-680 and I-480, correcting flaws with the original design of the interchange at Interstate 480 and the Kennedy Freeway (where the I-80 mainline narrowed to a single lane), rebuilding the I-80 and 680 interchange with c/d roadways to separate local traffic and other system wide improvements. Work was completed two months ahead of schedule in August 1999 with the final segment involving I-80 east and west of the 60th Street interchange (Exit 450).20,21,22
1956 plans for Interstate 80 provided for a route to traverse the Platte River across most of Nebraska, but did not specify whether the corridor would travel to the north or south of the waterway. The Iowa Highway Commission meanwhile opted for the I-80 mainline to run west from near Minden to the I-29 corridor at Loveland. Commissioners touted benefits to the Sioux City area while officials further south in Council Bluffs and Omaha were vehemently opposed, citing the need for improved connectivity to the growing Union Stock Yards in South Omaha. Adding to the debate was the north Omaha area and operators of the Mormon Bridge, which touted stimulating the Florence area and increasing revenue for the toll bridge.
Advocates pushing for the Council Bluffs and metropolitan Omaha corridor appealed to the federal government with the “Neola Diagonal,” the angled alignment I-80 takes today southwest from Neola to I-29 at Council Bluffs. Federal officials initially regarded the Diagonal as a secondary route, while Iowa and Nebraska continued to argue over the path of the main route. The Iowa Highway Commission won out temporarily, as it opted to route I-80 to Loveland and construct it ahead of the secondary route. The Loveland section opened in December 1966 as Interstate 80N. The Neola Diagonal was completed three years later as the I-80 mainline.23
West End – San Francisco, CA
East End – Ridgefield Park, NJ
- Branch Routes – 21
Total Mileage – 2,899.59
California – 199.24
Cities – San Francisco, Oakland, El Cerrito, Pinole, Vallejo, Fairfield, Vacaville, Davis, Sacramento, Auburn, Truckee
- Junctions –
Nevada – 410.67
Cities – Verdi, Reno, Sparks, Fernley, Lovelock, Winnemucca, Battle Mountain, Carlin, Elko, Wendover
Utah – 196.34*
Cities – Salt Lake City, Park City, Echo
- Junctions –
Wyoming – 402.76
Cities – Evanston, Lyman, Green River, Rock Springs, Rawlins, Laramie, Cheyenne, Pine Bluffs
- Junctions –
Nebraska – 455.32
Cities – Kimball, Sidney, Ogallala, North Platte, Lexington, Kearney, Grand Island, Seward, York, Lincoln, Omaha
- Junctions –
Iowa – 303.23#
Cities – Council Bluffs, Des Moines, Newton, Iowa City, Davenport
- Junctions –
Illinois – 163.52
- Cities – Moline, Genesco, Princeton, La Salle, Ottawa, Morris, Joliet, Chicago
- Junctions –
Indiana – 151.56
Cities – Hammond, Gary, South Bend, Elkhart
Ohio – 237.48
Cities – Toledo, Elyria, Cleveland, Youngstown
Pennsylvania – 311.12
Cities – Sharon, Mercer, Clarion, Dubois, Milton, Bloomsburg, Stroudsburg
New Jersey – 68.35
Cities – Paterson, Hackensack, Tenneck
Source: December 31, 2017 Interstate Route Log and Finders List
* – 3.31 miles on I-15, # – 14.29 miles on I-35
I-80 Annual Average Daily Traffic (AADT)
|Location||Vehicles per day|
|San Francisco, CA||276,000|
|Salt Lake City, UT||219,021|
|Rock Springs, WY||26,115|
|Pine Bluffs, WY||12,950|
|South Bend, IN||25,600|
|Snow Shoe, PA||21,000|
Source: Caltrans, Traffic Operations Program – Traffic and Vehicle Data Systems 
The Annual Traffic Report  (Nevada Department of Transportation)
Utah Department of Transportation – Traffic on Utah’s Highways 2001
2002 Wyoming Vehicle Mile Book (WYDOT)
2002 Traffic Flow Map of the State Highways (State of Nebraska)
INDOT 2000 Annual Average Daily Traffic Volumes Map
Pennsylvania Traffic Volumes 2002 (Penndot)
Interstate 80 was dropped from the Central Freeway at the same time Interstate 480 along the Embarcadero Freeway was decommissioned in 1965.
Short stretches of Interstate 80 in northwestern Nevada were complete in 1962: Between Mustang (Exit 23) and Exit 43 west of Fernley and northeast through the Fortymile Desert to Humboldt Sink.
U.S. 40 was upgraded to a freeway by 1962 for Interstate 80 between Golconda and Pumpernickel Valley, including the stretch through Golconda Summit (elevation 5,159 feet).
Interstate 80 ended at Kimball, Nebraska from the west and Chappell, Nebraska from the east until 1974, when the stretch by Sidney opened to traffic.
Interstate 80N traveled 17 miles east from Interstate 29 at Loveland to Interstate 80 near Minden, Iowa. The route was incorporated into an extended I-680 from Omaha as approved by AASHTO on November 10, 1973.
The 57.8-mile stretch of I-80 between Iowa 146 and Coral Ridge Avenue (former U.S. 218) in Iowa City completed the high speed route between Des Moines and the Quad Cities when it opened in October 1964.
The original alignment proposed for Interstate 80 took the route south from the Ohio Turnpike near Norwalk along a parallel alignment to Ohio 18 to Medina, Akron and the Youngstown vicinity. I-80 later shifted northward to the turnpike, but with a loop using what later became I-480. I-80 between Akron and Youngstown was later incorporated into I-80S and then I-76, while the route west from I-77 was never built.
Interstate 80 was constructed in stages across the Hawkeye State. From west to east, the segments opened as follows:2
- Nebraska State Line east to Interstate 29 North: December 15, 1972
- Interstate 29 North to Iowa 192: November 1, 1970
- Iowa 192 to U.S. 6: January 1, 1969
- U.S. 6 to Interstate 680: December 22, 1969
- Interstate 680 to U.S. 59: December 13, 1966
- U.S. 59 to U.S. 71: December 16, 1965
- U.S. 71 to Exit 75, Adair: September 5, 1960
- Exit 75 to Iowa 25: November 28, 1959
- Iowa 25 to U.S. 6 (Adel): September 5, 1960
- U.S. 6 (Adel) to Interstate 235 East: December 13, 1966
- Interstate 235 East to Douglas Avenue: September 21, 1958
- Douglas Avenue to Iowa 28: November 8, 1958
- Iowa 28 to Interstate 235 South: November 28, 1959
- Interstate 235 South to Exit 159: October 8, 1962
- Exit 159 to Iowa 146: November 16, 1962
- Iowa 146 to Old U.S. 218: October 23, 1964
- Old U.S. 218 to Iowa 1: November 15, 1963
- Iowa 1 to Iowa 38 North: August 24, 1962
- Iowa 38 North to U.S. 61: December 1, 1960
- U.S. 61 to U.S. 67: November 25, 1964
- U.S. 67 to Illinois State Line, including the Mississippi River Bridge: October 27, 1966
A proposal arose by 1991 to reroute Interstate 80 over I-280 from northwest Davenport to Colona, Illinois, with Interstate 74 trading places with the existing I-80 around the north and east sides of the Quad Cities. The renumbering was sought to improve safety by eliminating the TOTSO (turn off to stay on) movements at the cloverleaf interchange where Interstates 74, 80 and 280 meet in Illinois. It never came to pass because Iowa officials did not support the efforts from those in Illinois. See the Interstate 280 Iowa / Illinois guide for more details.
Much of Interstate 80 across northern Illinois was constructed in the early 1960s, with the route through south suburban Chicagoland opened to traffic by 1964. The section that Interstate 80 shares with Interstate 294 / Tri-State Tollway was constructed between 1956-1958, with the tollway opening in 1958. The original construction of the 83-mile section of the Tri-State Tollway (and the other original tollways) was funded by a bond issuance in the amount of $415 million by the state tollway commission (which was created in 1953).11 The Kingery Expressway section of Interstates 80 & 94 and U.S. 6 is the oldest section of I-80, having opened in 1950.10
The Tri-State Tollway was reconstructed between January 2005 and Fall 2006 from the Illinois 394 and Interstate 94 interchange in South Holland northwest to the U.S. 12-20/95th Street interchange in Oak Lawn.3 The project included the installation of an additional through lane on I- 80 and I-294. The Cal-Sag Channel Bridge near Alsip was planned for reconstruction, as were the Lincoln Oasis and the Markham Yard Bridge.
A companion project undertaken between January 2005 and July 2007 was the reconstruction of the Kingery Expressway in Illinois and the Borman Expressway in Indiana. Average daily traffic flow on Interstates 80 & 94 was approximately 160,000 vehicles daily, with a quarter being large trucks.4 For the Kingery Expressway (Interstate 80-94 and U.S. 6), improvements included:
- Revision and reconstruction of the Interstate 80, 94, 294, and Illinois 394 interchange
- Expansion to eight through lanes for through traffic on Interstate 80
- Reduction of weaving through reconfigured interchanges
- Installation of sound walls, replacement lighting, and landscaping
Within Indiana, the Borman Expressway carries Interstates 80 & 94 and U.S. 6 through Hammond and Gary. Most of the same improvements considered for the Kingery Expressway were likewise included in the Borman Expressway upgrade. Construction began in 2003. Work ran through summer 2011 and included an $189-million upgrade to the Interstate 65 interchange.5 Another proposal is to construct a south Chicago bypass, the Illiana Expressway, that could divert traffic from Interstates 80 & 94 around the Chicago/Northeast Indiana metro area.
Most of Interstate 80 across the Buckeye State was constructed as part of the Ohio Turnpike, the origins of which predate the establishment of the Interstate Highway System in 1956. The Ohio state legislature created the Ohio Turnpike Commission in 1949, which was the first step in designing and constructing the east-west freeway. Construction began on October 27, 1952, and the toll road was completed on October 1, 1955 (a total of 38 months).6
159 miles of the Ohio Turnpike were expanded to six overall lanes in a nearly two-decade long project. First announced by the Ohio Turnpike Commission in April 1995, widening of the toll road was ultimately paid for by a toll increase of more than 80%. The new lanes run from U.S. 20 in Toledo east to the Interstates 76 & 80 junction outside Youngstown.
Work was slow with three sections entailing 59.3 miles completed by 1997. The initial 2000 completion date announced by the Turnpike Commission was moved back to 2004, then 2008. By 2004, expansion was completed except for three segments: I-280 to I-75, I-75 to U.S. 20 (Reynolds Road) and a four-mile stretch east of the Cuyahoga River. The I-280 to I-75 stretch in Toledo was finished in 2007, however the economic turn down of the late 2000s led the Turnpike Commission to defer funding from the remaining two sections to instead replace its toll collection system. E-ZPass was implemented along the turnpike in 2009 upon completion of the $50-million upgrade.
A $33.5-million contract added a third lane in each direction of Interstates 80 & 90 between I-75 and U.S. 20 started in early 2013. This added to the nearly $750-million total expenditure for the overall expansion project. The final 4.6 miles of the project were finished by November 2014.19
Just prior to Exit 111 with Pennsylvania 153 south of Penfield, westbound Interstate 80 crests at the highest point east of the Mississippi River. Located within Moshannon State Forest along Pennsylvania’s section of the Appalachian Mountains, this location reaches 2,250 feet above sea level. Advancing west, I-80 leaves the Chesapeake Bay watershed and enters the Allegheny River watershed. Photo taken 09/01/05.
The Keystone Shortway, which carries Interstate 80 across Pennsylvania, was completed and fully opened to traffic on September 17, 1963. The last segment to be opened to traffic was the section from Stroudsburg to Scotrun.7
All segments of Interstate 80 were opened to traffic within the Garden State by November 1973.24
East End – Ridgefield Park, New Jersey
West End West End of Oakland-San Francisco Bay Bridge / Embarcadero – San Francisco, California
- Ryan Wanek, personal email, “Update to I-80 page on interstate-guide.com,” 12/09/04 and the official Nebraska Department of Roads webpage.
- “Iowa Completion Status of Interstate System as of January 1, 1982.” Iowa Department of Transportation.
- Tri-State Tollway: Interstate 294 South Reconstruction – official site
- Kingery Expressway Reconstruction – official site
- “After seven years Borman Expressway backups in rear view mirror.” Indiana Economic Digest, August 19, 2011.
- Ohio Turnpike History – official site
- Celebrating the 50th Anniversary of the Eisenhower Interstate Highway System: Previous Interstate Facts of the Day by the Federal Highway Administration (FHWA).
- California Celebrates 50 Years of the Interstate Highway System by Caltrans (California Department of Transportation).
- Images of America: The Bay Bridge by Paul C. Trimble and John C. Alioto, Jr., Arcadia Publishing, 2004.
- Encyclopedia of Chicago: Expressways by Dennis McClendon of the Chicago Historical Society
- Encyclopedia of Chicago: Tollways by David M. Young of the Chicago Historical Society
- Ryan Wanek, personal email, “Re: More Updates from Nebraska,” 12/19/06
- “Completion of I-80’s western leg is pushed to 2037.” Omaha World-Herald, December 18, 2006
- “Photofiles: Interstate 80 dedication in 1961.” Journal Star (Lincoln, NE), November 7, 2013.
- “I-80 Construction Project Almost Done.” WOWT (Omaha, NE), November 5, 2013.
- “New, wider stretch of I-80 opens.” Journal Star (Lincoln, NE), January 4, 2008.
- “East and west closer to meeting on widened I-80” Journal Star (Lincoln, NE), October 18, 2012.
- “State, city ready to begin work on diverging diamond at Northwest 48th Street” Journal Star (Lincoln, NE), January 27, 2014.
- “2 decades later, widening of turnpike finally finished – New lane open between Maumee, Perrysburg exits” The Blade (Toledo, OH) November 13, 2014.
- “Rebuilding of Interstate Is Set to Begin in 1987.” Omaha World-Herald (NE), September 8, 1985.
- “Decade of Work Money and Traffic Limit Speed of I-80 Rebuilding.” Omaha World-Herald (NE), April 5, 1989.
- “I-80 Upgrade Is Complete Billions of Pounds of Concrete, Decade of Work Improve Road The Rebuilding of Interstate 80 in Omaha.” Omaha World-Herald (NE), August 24, 1999.
- “Eisenhower Envisioned Highway Plan in 1919.” Omaha World-Herald (NE), June 29, 1986.
- Interstate 80 (New Jersey). NYCRoads.com.
Page updated January 3, 2017.