View source for U.S. Route 30

{{Short description|Highway in the United States}}
{{Use mdy dates|date=September 2019}}
{{Use American English|date=January 2024}}
{{Infobox road
| country = USA
| type = US
| route = 30
| map = {{maplink|frame=yes|plain=yes|frame-align=center|frame-width=320
|type=line|from=U.S. Route 30 in Oregon.map
|type2=line|from2=U.S. Route 30 in Idaho.map
|type3=line|from3=U.S. Route 30 in Wyoming.map
|type4=line|from4=U.S. Route 30 in Nebraska.map
|type5=line|from5=U.S. Route 30 in Iowa.map
|type6=line|from6=U.S. Route 30 in Illinois.map
|type7=line|from7=U.S. Route 30 in Indiana.map
|type8=line|from8=U.S. Route 30 in Ohio.map
|type9=line|from9=U.S. Route 30 in Pennsylvania.map
|type10=line|from10=U.S. Route 30 in New Jersey.map 
}}
| map_custom = yes
| map_notes = US&nbsp;30 highlighted in red
| length_mi = 3112<!--477.47+455.481+454.37+451+330.43+151.32+151.8+245.39+3.4+333+58.26-->
| established = 1926{{citation needed|date=February 2018}}
| direction_a = West
| terminus_a = {{Jct|country=USA|US|101}} in [[Astoria, Oregon|Astoria, OR]]
<!-- DO NOT ADD ANYMORE JUNCTIONS 10 JCT LIMIT -->| junction = {{plainlist|
* {{Jct|country=USA|I|5|I|84|dab2=Oregon–Utah}} at [[Portland, Oregon|Portland, OR]]
* {{Jct|country=USA|I|15}} at [[Pocatello, Idaho|Pocatello, ID]]
* {{Jct|country=USA|I|25}} at [[Cheyenne, Wyoming|Cheyenne, WY]]
* {{Jct|country=USA|I|35}} at [[Ames, Iowa|Ames, IA]]
* {{Jct|country=USA|I|55}} at [[Joliet, Illinois|Joliet, IL]]
* {{Jct|country=USA|I|65}} at [[Merrillville, Indiana|Merrillville, IN]]
* {{Jct|country=USA|I|75}} at [[Beaverdam, Ohio|Beaverdam, OH]]
* {{Jct|country=USA|I|77}} at [[Canton, Ohio|Canton, OH]]
* {{Jct|country=USA|I|70|I|76|dab2=Ohio–New Jersey}} at [[Breezewood, Pennsylvania|Breezewood, PA]] ([[Pennsylvania Turnpike]])
* {{Jct|country=USA|I|95}} at [[Philadelphia|Philadelphia, PA]]}}
| direction_b = East
| terminus_b = Virginia Avenue/Absecon Boulevard in [[Atlantic City, New Jersey|Atlantic City, NJ]]
| states = [[Oregon]], [[Idaho]], [[Wyoming]], [[Nebraska]], [[Iowa]], [[Illinois]], [[Indiana]], [[Ohio]], [[West Virginia]], [[Pennsylvania]], [[New Jersey]]
| previous_type = US
| previous_route = 29
| next_type = US
| next_route = 31
}}
'''U.S. Route&nbsp;30''' or '''U.S. Highway&nbsp;30''' ('''US&nbsp;30''') is an east–west main route of the [[United States Numbered Highway System]], with the highway traveling across the [[Northern U.S.]] With a length of {{convert|3112|mi|km}}, it is the third-longest U.S. Highway, after [[U.S. Route 20|US&nbsp;20]] and [[U.S. Route 6|US&nbsp;6]]. The western end of the highway is at [[U.S. Route 101|US&nbsp;101]] in [[Astoria, Oregon]]; the eastern end is at Virginia Avenue, Absecon Boulevard, and Adriatic Avenue in [[Atlantic City, New Jersey]]. The "0" as the last digit in the number indicates that it is a coast-to-coast route and a major east–west route. Despite long stretches of parallel and [[concurrency (road)|concurrent]] [[Interstate Highway]]s, it has not been decommissioned unlike other long-haul routes such as [[U.S. Route 66|US&nbsp;66]]. It is also the only U.S. Highway that has always been coast-to-coast since the beginning of U.S. Numbered Highway System.

US&nbsp;20 and US&nbsp;30 break the general U.S. Highway numbering rules in [[Oregon]], since US&nbsp;20 actually starts south of US&nbsp;30 in [[Newport, Oregon|Newport]], running through the middle of Oregon, while US&nbsp;30 runs parallel to the north of the state (the [[Columbia River]] and [[Interstate 84 (Oregon–Utah)|Interstate&nbsp;84]], or I-84). The two run concurrently and continue in the correct positioning near [[Caldwell, Idaho]]. This situation is because US&nbsp;20 was not a planned coast-to-coast route while US&nbsp;30 was.

Much of the historic [[Lincoln Highway]], the first road across the U.S. (from [[New York City]] to [[San Francisco]]), became part of US&nbsp;30; it is still known by that name in many areas.

==Route description==
{{More citations needed section|date=October 2022}}
{{Lengths table}}
|-
|[[U.S. Route 30 in Oregon|OR]]
|{{Convert|477<!--477.47-->|mi|km|disp=table}}<ref>[[Oregon Department of Transportation]], [http://webarchive.loc.gov/all/20060602073625/https://keiko.odot.state.or.us/ TransGIS]<br> [http://www.odot.state.or.us/transview/highwayreports/equations_milepoint_parms.cfm Equations and Milepoint Range Information] {{Webarchive|url=https://web.archive.org/web/20070311211906/http://www.odot.state.or.us/transview/highwayreports/equations_milepoint_parms.cfm |date=March 11, 2007 }}, accessed January 30, 2006</ref>
|-
|[[U.S. Route 30 in Idaho|ID]]
|{{Convert|455<!--455.481-->|mi|km|disp=table}}<ref>{{cite web |url = https://apps.itd.idaho.gov/apps/milepointlog/logs/usHW/US_30_MPLog.pdf |work = Idaho Transportation Department Milepoint Log |title = State Highway System Route: 0030 |publisher = [[Idaho Transportation Department]] |date = January 25, 2016 |access-date = November 7, 2020 }}</ref>
|-
|[[U.S. Route 30 in Wyoming|WY]]
|{{Convert|454<!--454.37-->|mi|km|disp=table}}<ref>{{cite web|url=http://www.dot.state.wy.us/FileDownload.jsp?sCode=hompo&sDID=1415660637|title=Reference Marker Book|website=dot.state.wy.us|publisher=[[Wyoming Department of Transportation]]|format=[[PDF]]|date=November 2004|url-status=dead|archive-url=https://web.archive.org/web/20070311005354/http://www.dot.state.wy.us/FileDownload.jsp?sCode=hompo&sDID=1415660637|archive-date=March 11, 2007|via=[[Wayback Machine]]}}</ref>
|-
|[[U.S. Route 30 in Nebraska|NE]]
|{{Convert|451|mi|km|disp=table}}<ref>{{cite web|url=http://www.nebraskaroads.com/roads/usroutes/6-38.html#30|title=Nebraska Roads: US 30|last=Whidden|first=Jesse|website=nebraskaroads.com|access-date=May 2, 2020|archive-date=July 5, 2020|archive-url=https://web.archive.org/web/20200705131303/http://www.nebraskaroads.com/roads/usroutes/6-38.html#30|url-status=live}}</ref>
|-
|[[U.S. Route 30 in Iowa|IA]]
|{{Convert|330<!--330.43-->|mi|km|disp=table}}<ref>[[Iowa Department of Transportation]], [http://www.gis.dot.state.ia.us/downloads/default.asp 2004 Geographic Information Systems Statewide and County Data] {{Webarchive|url=https://web.archive.org/web/20070817190449/http://www.gis.dot.state.ia.us/downloads/default.asp |date=August 17, 2007 }}</ref>
|-
|[[U.S. Route 30 in Illinois|IL]]
|{{Convert|151<!--151.32-->|mi|km|disp=table}}<ref>{{cite web|url=http://www.dot.state.il.us/gist2/select.html|title=2004 GIS Data|website=dot.state.il.us|publisher=[[Illinois Department of Transportation]]|access-date=January 30, 2006|archive-date=August 10, 2007|archive-url=https://web.archive.org/web/20070810103329/http://dot.state.il.us/gist2/select.html|url-status=live}}</ref>
|-
|[[U.S. Route 30 in Indiana|IN]]
|{{Convert|152<!--151.8-->|mi|km|disp=table}}<ref>{{cite web|url=http://highwayexplorer.com/EndsPage.php?id=2030&section=1|title=Indiana Highway Ends - US 30|access-date=October 9, 2014|url-status=dead|archive-url=https://web.archive.org/web/20121008084109/http://highwayexplorer.com/EndsPage.php?id=2030&section=1|archive-date=October 8, 2012|via=[[Wayback Machine]]}}</ref>
|-
|[[U.S. Route 30 in Ohio|OH]]
|{{Convert|245<!--245.39-->|mi|km|disp=table}}<ref>{{cite web|url=http://www.dot.state.oh.us/Techservsite/availpro/Road_%20Infor/SLD/|title=Straight Line Diagrams|website=dot.state.oh.us|publisher=[[Ohio Department of Transportation]]|access-date=January 1, 2005|archive-url=https://web.archive.org/web/20030219122926/http://www.dot.state.oh.us/techservsite/availpro/Road_%20Infor/SLD/|archive-date=February 19, 2003|via=[[Wayback Machine]]}}</ref>
|-
|[[U.S. Route 30 in West Virginia|WV]]
|{{Convert|3<!--3.4-->|mi|km|disp=table}}<ref>Approximated from [[Mapquest]]</ref>
|-
|[[U.S. Route 30 in Pennsylvania|PA]]
|{{Convert|333|mi|km|disp=table}}
|-
|[[U.S. Route 30 in New Jersey|NJ]]
|{{Convert|58<!--58.26-->|mi|km|disp=table}}<ref>{{cite web|url=http://www.state.nj.us/transportation/refdata/sldiag/00000030__-.pdf|title=Straight Line Diagrams - US 30|website=state.nj.us|publisher=[[New Jersey Department of Transportation]]|date=2005|access-date=January 29, 2006|archive-date=February 22, 2006|archive-url=https://web.archive.org/web/20060222212620/http://www.state.nj.us/transportation/refdata/sldiag/00000030__-.pdf|url-status=live}}</ref>
|-
|Total
|{{Convert|3112<!--477.47+455.481+454.37+451+330.43+151.32+151.8+245.39+3.4+333+58.26-->|mi|km|disp=table}}
|}

===Oregon===
{{Main|U.S. Route 30 in Oregon}}
[[File:End US 30 Marker, Astoria, Oregon.jpg|thumb|175px|Western terminus of US&nbsp;30 in [[Astoria, Oregon]]]]
The western terminus of US&nbsp;30 is at an intersection with [[U.S. Route 101|US&nbsp;101]] at the southern end of the [[Astoria–Megler Bridge]] in downtown [[Astoria, Oregon|Astoria]], [[Oregon]], approximately {{convert|5|mi|km|spell=in}} from the [[Pacific Ocean]]. It heads east to [[Portland, Oregon|Portland]], where it uses a short section of [[freeway]] built for the canceled [[Interstate 505 (Oregon)|I-505]]. From there, it heads around the north side of downtown on [[Interstate 405 (Oregon)|I-405]] and [[Interstate 5|I-5]] to reach [[Interstate 84 (Oregon–Utah)|I-84]]. Most of the rest of the route is [[concurrency (road)|concurrent]] with I‑84, with only about {{convert|70|mi|km}}, under a fifth of its remaining length, off the freeway, mainly on old alignments.

===Idaho===
{{Main|U.S. Route 30 in Idaho}}
Upon entering [[Idaho]], US&nbsp;30 runs along its old surface route through [[Fruitland, Idaho|Fruitland]] and [[New Plymouth, Idaho|New Plymouth]] before joining I‑84. It leaves at [[Bliss, Idaho|Bliss]] and soon crosses the [[Snake River]], running south of it through [[Twin Falls, Idaho|Twin Falls]] and [[Burley, Idaho|Burley]] before crossing it again and rejoining I‑84. At the split with [[Interstate 86 (Idaho)|I-86]], US&nbsp;30 continues east with I‑86 almost to its end at [[Pocatello, Idaho|Pocatello]]. US&nbsp;30 cuts southeast through downtown Pocatello to [[Interstate 15|I-15]], where it heads south to [[McCammon, Idaho|McCammon]]. There, it exits and heads east and southeast into [[Wyoming]], not paralleling an Interstate Highway for the first time since Portland.

===Wyoming===
{{Main|U.S. Route 30 in Wyoming}}
In [[Wyoming]], US&nbsp;30 heads southeast through [[Kemmerer, Wyoming|Kemmerer]] to [[Granger, Wyoming|Granger]], where it joins [[Interstate 80|I-80]] across the southern part of the state. It is also here that it joins the historic [[Lincoln Highway]]. As in the previous two states, US&nbsp;30 remains with the Interstate highway for most of its path, only leaving for the old route in the following places:
* {{convert|97|mi|km}} from [[Walcott, Wyoming|Walcott]] to [[Laramie, Wyoming|Laramie]]
* {{convert|12|mi|km}} through [[Cheyenne, Wyoming|Cheyenne]]
* {{convert|2|mi|km}} through [[Pine Bluffs, Wyoming|Pine Bluffs]] to the [[Nebraska]] state line

===Nebraska===
{{Main|U.S. Route 30 in Nebraska}}
Unlike the three states to the west, [[Nebraska]] keeps US&nbsp;30 completely separate from its parallel Interstates ([[Interstate 80|I-80]] in this case). From the state line to [[Grand Island, Nebraska|Grand Island]], US&nbsp;30 closely parallels I‑80. East of Grand Island, US&nbsp;30 diverges from I‑80 and runs northeast toward [[Columbus, Nebraska|Columbus]] on a highway parallel to the [[Platte River]]. At Columbus, it turns east toward [[Schuyler, Nebraska|Schuyler]] and [[Fremont, Nebraska|Fremont]] and crosses the [[Missouri River]] into [[Iowa]] east of [[Blair, Nebraska|Blair]].

===Iowa===
{{Main|U.S. Route 30 in Iowa}}
US&nbsp;30 crosses Iowa from west to east approximately {{convert|20|mi|km}} north of [[Interstate 80|I-80]]. Between [[Missouri Valley, Iowa|Missouri Valley]] and [[Denison, Iowa|Denison]], US&nbsp;30 runs in a southwest–northeast direction. The majority of US&nbsp;30 east of [[Ames, Iowa|Ames]] and west of the [[Mount Vernon, Iowa|Mount Vernon]]–[[Cedar Rapids, Iowa|Cedar Rapids]] area ({{convert|138|mi|km|disp=sqbr}}) is a rural four-lane divided highway. A portion of the highway in [[Tama County, Iowa|Tama County]] is being upgraded to a divided highway. US&nbsp;30 between Mount Vernon and [[DeWitt, Iowa|Dewitt]] is a two–lane highway. It crosses the [[Mississippi River]] into [[Illinois]] on the [[Gateway Bridge (Illinois–Iowa)|Gateway Bridge]] at [[Clinton, Iowa|Clinton]].

US&nbsp;30S and US&nbsp;30A are two previous alternate alignments of US&nbsp;30 in Iowa. They followed the original alignment of US&nbsp;30 in the state. They both began in Nebraska, entered Iowa in [[Council Bluffs, Iowa|Council Bluffs]], and extended north to Missouri Valley via [[Crescent, Iowa|Crescent]] to meet the current highway.

===Illinois===
{{Main|U.S. Route 30 in Illinois}}
US&nbsp;30 heads east in [[Illinois]] to [[Rock Falls, Illinois|Rock Falls]], where it begins to parallel [[Interstate 88 (Illinois)|I-88]]. At [[Aurora, Illinois|Aurora]], it turns southeast to [[Joliet, Illinois|Joliet]], where it is a major thoroughfare in the city of Joliet (Plainfield Road), and then back east through [[New Lenox, Illinois|New Lenox]], [[Frankfort, Illinois|Frankfort]], [[Modena, Illinois|Mokena]], [[Matteson, Illinois|Matteson]], [[Olympia Fields, Illinois|Olympia Fields]], [[Park Forest, Illinois|Park Forest]], [[Chicago Heights, Illinois|Chicago Heights]], [[Ford Heights, Illinois|Ford Heights]], and [[Lynwood, Illinois|Lynwood]] to the [[Indiana]] state line, bypassing [[Chicago]] to the south. Notwithstanding, the original 1926 routing of US&nbsp;30 ran directly through downtown Chicago.

===Indiana===
{{Main|U.S. Route 30 in Indiana}}
US&nbsp;30 in [[Indiana]] is a major rural [[divided highway]]. It is not a freeway except at [[Fort Wayne, Indiana|Fort Wayne]], where it runs around the north side on [[Interstate 69|I-69]] and [[Interstate 469|I-469]]. Between [[Interstate 65|I-65]] (at [[Merrillville, Indiana|Merrillville]]) and I‑69 (at Fort Wayne), there are over 40 traffic signals on this divided highway, hindering smooth traffic flow. This is especially pronounced near [[Warsaw, Indiana|Warsaw]] and [[Columbia City, Indiana|Columbia City]], where the speed limit is reduced as the highway runs through a commercial section with many businesses and traffic signals. Many of the other signals are concentrated between [[Hobart, Indiana|Hobart]] and [[Valparaiso, Indiana|Valparaiso]], the two cities being about {{convert|20|mi|km}} apart. It is, however, a four-lane divided road through its entirety within Indiana, generally avoiding small towns. Speed limits range but are generally {{convert|60|mph|km/h|abbr=on}}.

===Ohio===
{{Main|U.S. Route 30 in Ohio}}
US&nbsp;30 continues into [[Ohio]], where it is mainly a four-lane divided highway until [[Canton, Ohio|Canton]]. A proposal to make US&nbsp;30 a limited-access freeway from Trump Avenue and [[Ohio State Route 11|State Route&nbsp;11]] (SR&nbsp;11) was set in 2019 and federal funding set $18&nbsp;million (equivalent to ${{Formatprice|{{Inflation|US-GDP|18000000|2019}}}} in {{Inflation/year|index=US-GDP}}{{Inflation/fn|index=US-GDP}}) to construct the new freeway.<ref>{{Cite web|url=https://www.cantonrep.com/news/20191014/state-advances-funding-for-engineering-design-work-on-us-30-in-stark-county|title=State advances funding for engineering, design work on U.S. 30 in Stark County|last=Wang|first=Robert|website=The Repository|language=en|access-date=2020-03-11|archive-date=October 28, 2019|archive-url=https://web.archive.org/web/20191028070604/https://www.cantonrep.com/news/20191014/state-advances-funding-for-engineering-design-work-on-us-30-in-stark-county|url-status=dead}}</ref> {{As of|2020}}, the only sections that were limited access freeways are in [[Van Wert, Ohio|Van Wert]], [[Bucyrus, Ohio|Bucyrus]], [[Mansfield, Ohio|Mansfield]], [[Wooster, Ohio|Wooster]], and Canton. A section between I-71 and US&nbsp;250 is a divided four-lane highway. A section between [[Ohio State Route 57|SR&nbsp;57]] and [[Ohio State Route 172|SR&nbsp;172]] is a four-lane divided highway, with traffic signals at two intersections. The highway passes through Van Wert. After Van Wert, it travels through [[Upper Sandusky, Ohio|Upper Sandusky]] where the highway runs concurrently with [[U.S. Route 23|US&nbsp;23]]. The section between Mansfield and Canton follows the old Lincoln Highway. The last remaining segments that will be upgraded to a freeway are past Canton; currently, the highway is a two-lane route that passes through [[East Canton, Ohio|East Canton]], [[Minerva, Ohio|Minerva]], and [[Lisbon, Ohio|Lisbon]]. After Lisbon, it runs concurrently with [[Ohio State Route 45|SR&nbsp;45]] for {{convert|3|mi|km|spell=in}} and becomes a freeway. Designated with signs marking routes SR&nbsp;11, [[Ohio State Route 7|SR&nbsp;7]], [[Ohio State Route 39|SR&nbsp;39]], and US&nbsp;30. After joining SR&nbsp;11, SR&nbsp;7 becomes a part of the freeway where all three routes split in [[East Liverpool, Ohio|East Liverpool]] where US&nbsp;30 joins SR&nbsp;39 for {{convert|1|mi|km|spell=in}} and US&nbsp;30 crosses the [[Ohio River]] into West Virginia.

===West Virginia===
{{Main|U.S. Route 30 in West Virginia}}
US&nbsp;30 runs for only about {{convert|4|mi|km|spell=in}} in [[West Virginia]]. It crosses the [[Ohio River]] over the [[Jennings Randolph Bridge]], continuing the freeway from the Ohio section. After cutting through the town of [[Chester, West Virginia|Chester]] with only one interchange, [[West Virginia Route&nbsp;2]] (Carolina Avenue), the freeway section ends not too long after. US&nbsp;30 continues across the northernmost piece of the [[Northern Panhandle of West Virginia|Northern Panhandle]] on a two-lane road.

===Pennsylvania===
{{Main|U.S. Route 30 in Pennsylvania}}
[[File:US 30 WB past PA 252.jpeg|right|thumb|US&nbsp;30 westbound in [[Paoli, Pennsylvania]], along the [[Philadelphia Main Line]], October 2018]]
US&nbsp;30 heads southeast into [[Pennsylvania]], joining [[U.S. Route 22|US&nbsp;22]] and then the [[Penn-Lincoln Parkway West]] west of [[Pittsburgh]]. It heads through downtown Pittsburgh on [[Interstate 376|I-376]]/US&nbsp;22, leaving at [[Wilkinsburg, Pennsylvania|Wilkinsburg]] for its own alignment. From there, it roughly parallels the [[Pennsylvania Turnpike]] ([[Interstate 76 (Ohio–New Jersey)|I-76]]) to the [[Philadelphia]] area, though, in many areas, particularly from [[York, Pennsylvania|York]] past [[Lancaster, Pennsylvania|Lancaster]], and bypassing [[Coatesville, Pennsylvania|Coatesville]], [[Downingtown, Pennsylvania|Downingtown]], and [[Exton, Pennsylvania|Exton]], it is far enough from the Pennsylvania Turnpike to require its own freeway. In Somerset County it mainly follows the old route of the [[Forbes Road]]. As it approaches Philadelphia, US&nbsp;30 constitutes the main road of the [[Philadelphia Main Line]], a string of affluent suburbs west of the city; often called Lancaster Avenue and Lancaster Pike through this stretch. US&nbsp;30 then briefly joins I‑76 near [[Center City, Philadelphia]], splitting onto [[Interstate 676|I-676]] as it crosses the [[Delaware River]] on the [[Benjamin Franklin Bridge]].

===New Jersey===
{{Main|U.S. Route 30 in New Jersey}}
US&nbsp;30 splits from [[Interstate 676|I-676]] just east of the Benjamin Franklin Bridge toll plaza in [[Camden, New Jersey|Camden]] and heads southeast to [[Atlantic City, New Jersey|Atlantic City]], generally parallel to the [[Atlantic City Expressway]], passing through the [[New Jersey Pine Barrens]]. For most of its New Jersey run, it is known as the White Horse Pike. It ends in Atlantic City at the intersection of Absecon Boulevard, Virginia Avenue, and Adriatic Avenue, about {{convert|0.5|mi|km}} from the [[Atlantic Ocean]].

==History==
US&nbsp;30 was originally proposed to run from [[Salt Lake City, Utah]], to [[Atlantic City, New Jersey]].<ref>{{cite book |author = Joint Board on Interstate Highways |year = 1925 |chapter-url = https://en.wikisource.org/wiki/Report_of_Joint_Board_on_Interstate_Highways_October_30,_1925#52 |chapter = Appendix VI: Descriptions of the Interstate Routes Selected, with Numbers Assigned |title = Report of Joint Board on Interstate Highways, October 30, 1925, Approved by the Secretary of Agriculture, November 18, 1925 |type = Report |location = Washington, DC |publisher = United States Department of Agriculture |page = 52 |id = {{OCLC|733875457|55123355|71026428}} |access-date = November 14, 2017 |via = [[Wikisource]] |archive-date = November 14, 2017 |archive-url = https://web.archive.org/web/20171114145350/https://en.wikisource.org/wiki/Report_of_Joint_Board_on_Interstate_Highways_October_30,_1925#52 |url-status = live }}</ref> West of [[Philadelphia, Pennsylvania]], this was designated largely along the [[Lincoln Highway]], as part of a promise to the [[Lincoln Highway Association]] to assign a single number to their road as much as possible. West of Salt Lake City, [[U.S. Route 40|US&nbsp;40]] continued to [[San Francisco, California]], although it ran farther north than the Lincoln Highway east of [[Wadsworth, Nevada]], and west of [[Sacramento, California]].<ref name="fhwa">{{cite web|url=https://www.fhwa.dot.gov/infrastructure/numbers.cfm|title=From Names to Numbers: The Origins of the U.S. Numbered Highway System|last=Weingroff|first=Richard F.|publisher=Federal Highway Administration|date=June 27, 2017|access-date=May 3, 2020|archive-date=September 1, 2019|archive-url=https://web.archive.org/web/20190901182531/https://www.fhwa.dot.gov/infrastructure/numbers.cfm|url-status=live}}</ref>

The governments of [[Idaho]] and [[Oregon]] objected to Salt Lake City as the terminus for US&nbsp;30 and requested extensions. What is now US&nbsp;30 through those states (west of [[Burley, Idaho]]) had been designated as part of [[U.S. Route 20|US&nbsp;20]], another transcontinental route, but traveled through [[Yellowstone National Park]] and was inaccessible during the winter season. The states agreed to take US&nbsp;30 along that route, splitting from the route to Salt Lake City at [[Granger, Wyoming]], and running along what had been designated as [[U.S. Route 530|US&nbsp;530]]. (That number was then reused for the spur toward Salt Lake City.) The planned US&nbsp;530 had ended at [[U.S. Route 91|US&nbsp;91]] at [[McCammon, Idaho]], where the new US&nbsp;30 turned north to [[Pocatello, Idaho|Pocatello]], meeting the planned US&nbsp;20. (US&nbsp;20 was truncated to Yellowstone National Park but later extended along its own route to the [[Pacific Ocean]].) What had been designated as [[U.S. Route 630|US&nbsp;630]], from US&nbsp;30 at [[Echo, Utah|Echo]] to [[Ogden, Utah|Ogden]], Utah, was to be extended east on former US&nbsp;30 to US&nbsp;30 at Granger and northwest on US&nbsp;91 and what had been designated [[U.S. Route 191|US&nbsp;191]] to US&nbsp;30 at Burley.<ref name="fhwa"/>

Utah objected to that plan, however, as it removed US&nbsp;30 from that state, giving them only US&nbsp;630, a branch. A compromise was reached, in which the US&nbsp;630 route would become the main line of US&nbsp;30, once improved to higher standards, but that was still not deemed completely satisfactory. Ultimately, in the final system, a split was approved between Burley, Idaho, and Granger, Wyoming, with US&nbsp;30N running along the modern routing US&nbsp;30, and [[U.S. Route 30S (Idaho–Wyoming)|US&nbsp;30S]] taking the route through Utah (planned as US&nbsp;630). In the final plan (dated November 11, 1926), the route toward Salt Lake City became US&nbsp;530, ending at US&nbsp;40 at [[Kimball Junction, Utah]].<ref name="fhwa"/><ref>[[American Association of State Highway and Transportation Officials]], United States Numbered Highways, 1927</ref>{{page needed|date=February 2023}}

Around 1931, a split in Ohio was designated, from [[Delphos, Ohio|Delphos]] east to [[Mansfield, Ohio|Mansfield]]. The original US&nbsp;30 was assigned [[U.S. Route 30S (Ohio)|US&nbsp;30S]], and a straighter route became [[U.S. Route 30N (Ohio)|US&nbsp;30N]]. US&nbsp;30S was eliminated {{Circa|1975}}, putting US&nbsp;30 on former US&nbsp;30N.{{Citation needed|date=September 2009}}

US&nbsp;30 was rerouted {{Circa|1931|lk=off}} to bypass Omaha, Nebraska, and [[Council Bluffs, Iowa]], to the north. The former route, from [[Fremont, Nebraska]], to [[Missouri Valley, Iowa]], was designated US&nbsp;30S. Around 1934, it was truncated to Omaha<!--which end?!?--> and {{Circa|1939|lk=off}} it was changed from US&nbsp;30S to US&nbsp;30A and was removed from service in 1969 when the historic Douglas Street bridge was demolished.{{citation needed|date=February 2018}} Later sections were relocated to parallel [[Interstate Highway]]s in several states, including I-84 in Oregon and Idaho.

A signed [[U.S. Route 30 Bypass (Portland, Oregon)|US&nbsp;30 Bypass]] was created in [[Portland, Oregon]], beginning at the [[St. Johns Bridge]], following (roughly) Lombard Street in [[North Portland, Oregon|North Portland]], continuing along Sandy Boulevard, and rejoining the I-84/US&nbsp;30 route in the center of the town of [[Wood Village, Oregon|Wood Village]].{{citation needed|date=February 2018}} Portland also had a [[U.S. Route 30 Business (Portland, Oregon)|US&nbsp;30 Business]] route along Northeast Sandy Boulevard; the route, however, was decommissioned in 2007.{{Cn|date=October 2022}}

In 1988, [[Pennsylvania Department of Transportation]] (PennDOT) engineers proposed that US&nbsp;30 be rerouted and upgraded to a four-lane controlled-access expressway through a portion of [[Lancaster County, Pennsylvania|Lancaster County]]. The [[American Farmland Trust]] (AFT) opposed the plan because, according to Jim Riggle, then Director of Operations at AFT, it "would have cut right through the heart of the best farmland [and] would probably have been the death knell of the [[Amish]] community". The plans were averted when more than a thousand Amish people, people who do not usually participate in the public process, "drove their buggies to the meeting hall and expressed their concern by simply sitting quietly in the audience in their black homespun suits".<ref>{{cite book|title=The Experience of Place|last=Hiss|first=Tony|publisher=Alfred A. Knopf|year=1990|isbn=0-394-56849-4|location=New York|pages=[https://archive.org/details/experienceofplac00hiss/page/173 173–174]|url-access=registration|url=https://archive.org/details/experienceofplac00hiss/page/173}}</ref>

==Major intersections==
;Oregon
: {{jct|country=USA|US|101}} in [[Astoria, Oregon|Astoria]]
: {{jct|country=USA|I|405|dab1=Oregon}} in [[Portland, Oregon|Portland]]. The highways travel concurrently through the city.
: {{jct|country=USA|I|5|I|405|dab2=Oregon}} in Portland. I-5/US&nbsp;30 travel concurrently through the city.
: {{jct|country=USA|I|5|I|84|dab2=Oregon–Utah}} in Portland. I-84/US&nbsp;30 travel concurrently to [[Cascade Locks, Oregon|Cascade Locks]].
: {{jct|country=USA|I|205|dab1=Oregon–Washington}} in Portland
: {{jct|country=USA|I|205|dab1=Oregon–Washington}} in Portland
: {{jct|country=USA|I|205|dab1=Oregon–Washington}} in Portland
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} in Cascade Locks. The highways travel concurrently to [[Hood River, Oregon|Hood River]].
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} in Hood River. The highways travel concurrently to [[Mosier, Oregon|Mosier]].
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} in [[The Dalles, Oregon|The Dalles]]
: {{jct|country=USA|US|197}} in The Dalles. The highways travel concurrently through the city.
: {{jct|country=USA|I|84|dab1=Oregon–Utah|US|197}} in The Dalles. I-84/US&nbsp;30 travel concurrently to [[Pendleton, Oregon|Pendleton]].
: {{jct|country=USA|US|97}} east-northeast of The Dalles
: {{jct|country=USA|US|730}} east of [[Boardman, Oregon|Boardman]]
: {{jct|country=USA|I|82}} southwest of [[Hermiston, Oregon|Hermiston]]
: {{jct|country=USA|US|395}} in [[Stanfield, Oregon|Stanfield]]. The highways travel concurrently to Pendleton.
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} in [[Gopher Flats, Oregon|Gopher Flats]]. The highways travel concurrently to [[La Grande, Oregon|La Grande]].
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} southeast of La Grande. The highways travel concurrently to [[North Powder, Oregon|North Powder]].
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} in [[Baker City, Oregon|Baker City]]. The highways travel concurrently to south of [[Fruitland, Idaho|Fruitland]], [[Idaho]].
;Idaho
: {{jct|country=USA|I|84|dab1=Oregon–Utah|US|95}} south of [[Fruitland, Idaho|Fruitland]]. US&nbsp;30/US&nbsp;95 travel concurrently to [[Palisades Corner, Idaho|Palisades Corner]].
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} south of [[New Plymouth, Idaho|New Plymouth]]. The highways travel concurrently to west-northwest of [[Bliss, Idaho|Bliss]].
: {{jct|country=USA|US|20|US|26}} north of [[Caldwell, Idaho|Caldwell]]. The highways travel concurrently to Caldwell.
: {{jct|country=USA|I|184}} in [[Boise, Idaho|Boise]].
: {{jct|country=USA|US|20|US|26}} in Boise. US&nbsp;20/US&nbsp;30 travel concurrently to [[Mountain Home, Idaho|Mountain Home]]. US&nbsp;26/US&nbsp;30 travel concurrently to west-northwest of Bliss.
: {{jct|country=USA|US|93}} east of [[Filer, Idaho|Filer]]. The highways travel concurrently to [[Twin Falls, Idaho|Twin Falls]].
: {{jct|country=USA|I|84|dab1=Oregon–Utah}} in [[Heyburn, Idaho|Heyburn]]. The highways travel concurrently to northeast of [[Declo, Idaho|Declo]].
: {{jct|country=USA|I|84|dab1=Oregon–Utah|I|86|dab2=Idaho}} northeast of Declo. I-86/US&nbsp;30 travel concurrently to west of [[Chubbuck, Idaho|Chubbuck]].
: {{jct|country=USA|US|91}} in [[Pocatello, Idaho|Pocatello]]. The highways travel concurrently to northwest of [[McCammon, Idaho|McCammon]].
: {{jct|country=USA|I|15}} in Pocatello. The highways travel concurrently to northwest of McCammon.
: {{jct|country=USA|US|89}} in [[Montpelier, Idaho|Montpelier]]. The highways travel concurrently through the city.
;Wyoming
: {{jct|country=USA|US|189}} in [[Kemmerer, Wyoming|Kemmerer]]
: {{jct|country=USA|I|80}} in [[Little America, Wyoming|Little America]]. The highways travel concurrently to south-southeast of [[Walcott, Wyoming|Walcott]].
: {{jct|country=USA|US|191}} in [[Purple Sage, Wyoming|Purple Sage]]. The highways travel concurrently to [[Rock Springs, Wyoming|Rock Springs]].
: {{jct|country=USA|US|287}} east of [[Rawlins, Wyoming|Rawlins]]. The highways travel concurrently to [[Laramie, Wyoming|Laramie]].
: {{jct|country=USA|I|80}} southeast of [[Laramie, Wyoming|Laramie]]. The highways travel concurrently to southwest of [[Cheyenne, Wyoming|Cheyenne]].
: {{jct|country=USA|I|25|US|87}} in Cheyenne
: {{jct|country=USA|I|180|dab1=Wyoming|US|85}} in Cheyenne
: {{jct|country=USA|I|80}} east-northeast of Cheyenne. The highways travel concurrently to [[Pine Bluffs, Wyoming|Pine Bluffs]].
;Nebraska
: {{jct|country=USA|US|385}} in [[Sidney, Nebraska|Sidney]]. The highways travel concurrently to [[Chappell, Nebraska|Chappell]].
: {{jct|country=USA|US|138}} north of [[Big Springs, Nebraska|Big Springs]]
: {{jct|country=USA|US|26}} west-southwest of [[Ogallala, Nebraska|Ogallala]]. The highways travel concurrently to Ogallala.
: {{jct|country=USA|US|83}} in [[North Platte, Nebraska|North Platte]]
: {{jct|country=USA|US|283}} in [[Lexington, Nebraska|Lexington]]
: {{jct|country=USA|US|281}} in [[Grand Island, Nebraska|Grand Island]]
: {{jct|country=USA|US|81}} south of [[Columbus, Nebraska|Columbus]]. The highways travel concurrently to Columbus.
: {{jct|country=USA|US|77|US|275}} north of [[Fremont, Nebraska|Fremont]]. US&nbsp;30/US&nbsp;275 travel concurrently to east-northeast of Fremont.
: {{jct|country=USA|US|75}} in [[Blair, Nebraska|Blair]]. The highways travel concurrently through the city.
;Iowa
: {{jct|country=USA|I|29}} in [[Missouri Valley, Iowa|Missouri Valley]]
: {{jct|country=USA|US|59}} in [[Denison, Iowa|Denison]]. The highways travel concurrently through the city.
: {{jct|country=USA|US|71}} in [[Carroll, Iowa|Carroll]]
: {{jct|country=USA|US|169}} on the [[Amaqua Township, Boone County, Iowa|Amaqua]]–[[Beaver Township, Boone County, Iowa|Beaver]] township line. The highways travel concurrently to [[Ogden, Iowa|Ogden]].
: {{jct|country=USA|US|69}} in [[Ames, Iowa|Ames]]
: {{jct|country=USA|I|35}} southeast of Ames
: {{jct|country=USA|US|65}} in [[Colo, Iowa|Colo]]
: {{jct|country=USA|US|63}} in [[Toledo, Iowa|Toledo]]
: {{jct|country=USA|US|218}} in [[Fremont Township, Benton County, Iowa|Fremont Township]]. The highways travel concurrently to [[Cedar Rapids, Iowa|Cedar Rapids]].
: {{jct|country=USA|US|151}} in Cedar Rapids. The highways travel concurrently to [[Bertram Township, Linn County, Iowa|Bertram Township]].
: {{jct|country=USA|I|380|dab1=Iowa|US|218}} in Cedar Rapids
: {{jct|country=USA|US|61}} in [[De Witt, Iowa|De Witt]]. The highways travel concurrently to southwest of De Witt.
: {{jct|country=USA|US|67}} in [[Clinton, Iowa|Clinton]]. The highways travel concurrently through the city.
;Illinois
: {{jct|country=USA|state=IL|I-Toll|88|CKC|dab1=Illinois}} southeast of [[Rock Falls, Illinois|Rock Falls]]
: {{jct|country=USA|US|52}} north of [[Amboy, Illinois|Amboy]]
: {{jct|country=USA|I|39|US|51}} southwest of [[Lee, Illinois|Lee]]
: {{jct|country=USA|US|34}} in [[Oswego, Illinois|Oswego]]. The highways travel concurrently to [[Montgomery, Illinois|Montgomery]].
: {{jct|country=USA|I|55}} in [[Joliet, Illinois|Joliet]]
: {{jct|country=USA|US|6}} in Joliet. The highways travel concurrently through the city.
: {{jct|country=USA|I|80}} in [[New Lenox, Illinois|New Lenox]]
: {{jct|country=USA|US|45}} in [[Frankfort, Illinois|Frankfort]]
: {{jct|country=USA|I|57}} in [[Matteson, Illinois|Matteson]]
;Indiana
: {{jct|country=USA|US|41}} in [[Schererville, Indiana|Schererville]]
: {{jct|country=USA|I|65}} in [[Merrillville, Indiana|Merrillville]]
: {{jct|country=USA|US|421}} in [[Wanatah, Indiana|Wanatah]]
: {{jct|country=USA|US|35}} in [[Davis Township, Starke County, Indiana|Davis Township]]
: {{jct|country=USA|US|31}} east of [[Plymouth, Indiana|Plymouth]]
: {{jct|country=USA|US|33}} in [[Fort Wayne, Indiana|Fort Wayne]]. The highways travel concurrently through the city.
: {{jct|country=USA|I|69|US|33}} in Fort Wayne. I-69/US&nbsp;30 travel concurrently through the city.
: {{jct|country=USA|US|27}} in Fort Wayne
: {{jct|country=USA|I|469}} north-northeast of Fort Wayne. The highways travel concurrently to [[New Haven, Indiana|New Haven]].
: {{jct|country=USA|US|24}} northeast of New Haven. The highways travel concurrently to New Haven.
;Ohio
: {{jct|country=USA|US|224}} in [[Pleasant Township, Van Wert County, Ohio|Pleasant Township]]. The highways travel concurrently to [[Van Wert, Ohio|Van Wert]].
: {{jct|country=USA|US|127|US|224}} north of Van Wert
: {{jct|country=USA|US|68}} in [[Madison Township, Hancock County, Ohio|Madison Township]]
: {{jct|country=USA|US|23}} in [[Salem Township, Wyandot County, Ohio|Salem Township]]. The highways travel concurrently to [[Crane Township, Wyandot County, Ohio|Crane Township]].
: {{jct|country=USA|US|42}} in [[Madison Township, Richland County, Ohio|Madison Township]]
: {{jct|country=USA|I|71}} in [[Mifflin Township, Richland County, Ohio|Mifflin Township]]
: {{jct|country=USA|US|250}} in [[Plain Township, Wayne County, Ohio|Plain Township]]. The highways travel concurrently to [[Wooster Township, Wayne County, Ohio|Wooster Township]].
: {{jct|country=USA|US|62}} in [[Massillon, Ohio|Massillon]]. The highways travel concurrently to [[Canton, Ohio|Canton]].
: {{jct|country=USA|I|77|US|62}} in Canton
:{{jct|country=USA|state=OH|SR|11}} from [[West Point, Columbiana County, Ohio|West Point]] to [[West Virginia]] state line
;West Virginia
: {{jct|country=USA|state=WV|WV|2}} in [[Chester, West Virginia|Chester]]
;Pennsylvania
: {{jct|country=USA|US|22}} in [[North Fayette Township, Pennsylvania|North Fayette Township]]. The highways travel concurrently to [[Wilkinsburg, Pennsylvania|Wilkinsburg]].
: {{jct|country=USA|I|376}} in [[Robinson Township, Allegheny County, Pennsylvania|Robinson Township]]. The highways travel concurrently to Wilkinsburg.
: {{jct|country=USA|I|79}} southwest of [[Pennsbury Village, Pennsylvania|Pennsbury Village]]
: {{jct|country=USA|US|19}} in [[Pittsburgh]]. The highways travel concurrently approximately {{convert|1|mi|km}}.
: {{jct|country=USA|I|279}} in Pittsburgh
: {{jct|country=USA|I-Toll|76|dab1=Ohio–New Jersey}} in [[North Huntingdon Township, Pennsylvania|North Huntingdon Township]] ([[Pennsylvania Turnpike]])
: {{jct|country=USA|US|119}} in [[Southwest Greensburg, Pennsylvania|Southwest Greensburg]]
: {{jct|country=USA|US|219}} in [[Jenner Township, Somerset County, Pennsylvania|Jenner Township]]
: {{jct|country=USA|Future|99|US|220}} in [[Bedford Township, Pennsylvania|Bedford Township]]
: {{jct|country=USA|I|70}} in [[Breezewood, Pennsylvania|Breezewood]]. The highways travel concurrently through the town.
: {{jct|country=USA|US|522}} in [[Todd Township, Fulton County, Pennsylvania|Todd Township]]
: {{jct|country=USA|US|11}} in [[Chambersburg, Pennsylvania|Chambersburg]]
: {{jct|country=USA|I|81}} in Chambersburg
: {{jct|country=USA|US|15}} in [[Straban Township, Pennsylvania|Straban Township]]
: {{jct|country=USA|I|83}} in [[Manchester Township, York County, Pennsylvania|Manchester Township]]
: {{jct|country=USA|US|222}} in [[Manheim Township, Lancaster County, Pennsylvania|Manheim Township]]. The highways travel concurrently through the township.
: {{jct|country=USA|US|322}} in [[Caln Township, Chester County, Pennsylvania|Caln Township]]
: {{jct|country=USA|US|202}} in [[West Whiteland Township, Chester County, Pennsylvania|West Whiteland Township]]
: {{jct|country=USA|I|476}} in [[Radnor Township, Delaware County, Pennsylvania|Radnor Township]]
: {{jct|country=USA|US|1}} on the [[Lower Merion Township, Montgomery County, Pennsylvania|Lower Merion Township]]–[[Philadelphia]] line
: {{jct|country=USA|I|76|dab1=Ohio–New Jersey}} in Philadelphia. The highways travel concurrently through the city.
: {{jct|country=USA|I|76|dab1=Ohio–New Jersey|I|676}} in Philadelphia. I-676/US&nbsp;30 travel concurrently to [[Camden, New Jersey|Camden]], [[New Jersey]].
: {{jct|country=USA|I|95}} in Philadelphia
;New Jersey
: {{jct|country=USA|US|130}} in [[Pennsauken Township, New Jersey|Pennsauken Township]]. The highways travel concurrently to [[Collingswood, New Jersey|Collingswood]].
: {{jct|country=USA|I|295|dab1=Delaware–New Jersey}} in [[Barrington, New Jersey|Barrington]]
: {{jct|country=USA|US|206}} in [[Hammonton, New Jersey|Hammonton]]
: {{jct|country=USA|US|9}} in [[Absecon, New Jersey|Absecon]]
: Virginia Avenue/Absecon Boulevard/Adriatic Avenue in [[Atlantic City, New Jersey|Atlantic City]]
<ref name=rand>{{cite book |author = Rand McNally |year = 2013 |title = The Road Atlas |edition = Walmart |location = Chicago |publisher = Rand McNally |pages = 31, 32, 34, 36–39, 62–63, 66–67, 78–79, 84–89, 112, 116 |isbn = 978-0-528-00626-5 }}</ref>

==Special routes==
{{Main|Special routes of U.S. Route 30}}
There are 13 current [[special route]]s connected to US&nbsp;30 in Oregon, Wyoming, Nebraska, Iowa, Ohio and Pennsylvania. There are 11 examples of former specials routes as well. 

==Related routes==
* {{jct|country=USA|US|130}} in [[New Jersey]]
* {{jct|country=USA|US|230}} (former) in [[Pennsylvania]]
* {{jct|country=USA|US|330}} (former) in [[Illinois]]
* {{jct|country=USA|US|430}} (former) in Illinois
* {{jct|country=USA|US|530}} (former) in [[Utah]]
* {{jct|country=USA|US|630}} (former) in [[Oregon]]
* {{jct|country=USA|US|730}} in Oregon and [[Washington (state)|Washington]]
* {{jct|country=USA|US|830}} (former) in Washington

==See also==
{{Portal|U.S. Roads}}
* [[List of United States Numbered Highways]]
* [[Lincoln Highway]]

==References==
{{Reflist}}

==External links==
{{Commons category|U.S. Route 30}}
{{Attached KML}}
* [http://usends.com/30.html Endpoints of U.S. Route 30 on usends.com]
* "[https://www.life.com/destinations/road-trip-photos-from-us-route-30-in-1948/ Road Trip! U.S. Route&nbsp;30 in 1948]" &ndash; Photo essay by [[Allan Grant]] of ''[[Life (magazine)|Life]]'' magazine

{{US Highways}}
{{US 30}}

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{{wy browse|previous_type=WY|previous_route=28|route=[[State highways in Wyoming|WY]]|next_type=WY|next_route=30}}
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{{Authority control}}

[[Category:U.S. Route 30| ]]
[[Category:United States Numbered Highway System|30]]
[[Category:U.S. Highways in Wyoming|30]]
[[Category:U.S. Highways in Utah|30]]
[[Category:Interstate 80]]
[[Category:Interstate 84 (Oregon–Utah)]]
[[Category:1926 establishments in the United States]]