{{Short description|Highway in Pennsylvania, US}} {{highway detail hatnote|Interstate 78}} {{Use mdy dates|date=May 2022}} {{Use American English|date=May 2022}} {{Infobox road |state=PA |route=78 |type=I |map={{maplink-road|from=Interstate 78 in Pennsylvania.map}} |map_custom=yes |map_notes=I-78 highlighted in red |maint=[[Pennsylvania Department of Transportation|PennDOT]] and [[Delaware River Joint Toll Bridge Commission|DRJTBC]] |length_mi=77.95 |length_ref=<ref>{{cite web |url = https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table01.cfm |work= FHWA Route Log and Finder List |title = Table 1 - Main Routes |date = December 31, 2021 |access-date = May 30, 2022 |author = [[Federal Highway Administration]] }}</ref> |established=1957 |history=Completed in 1989 |direction_a=West |terminus_a={{jct|state=PA|I|81}} in [[Union Township, Lebanon County, Pennsylvania|Union Township]] |junction={{plainlist| *{{jct|state=PA|US|22}} from [[Bethel Township, Lebanon County, Pennsylvania|Bethel Township]] to [[Upper Macungie Township, Pennsylvania|Upper Macungie Township]] *{{jct|state=PA|PA|501}} in [[Bethel, Berks County, Pennsylvania|Bethel]] *{{jct|state=PA|PA|183}} near [[Strausstown, Pennsylvania|Strausstown]] *{{jct|state=PA|PA|61}} near [[Hamburg, Pennsylvania|Hamburg]] *{{jct|state=PA|PA|100}} in [[Fogelsville, Pennsylvania|Fogelsville]] *{{jct|state=PA|PA|145|PA|309}} in [[Summit Lawn, Pennsylvania|Summit Lawn]] *{{jct|state=PA|US|222|PA|222}} in [[Dorneyville, Pennsylvania|Dorneyville]] *{{jct|state=PA|PA|29}} near [[Allentown, Pennsylvania|Allentown]] *{{jct|state=PA|PA|33}} in [[Lower Saucon Township, Pennsylvania|Lower Saucon Township]] }} |direction_b=East |terminus_b={{jct|state=NJ|I|78}} at the [[New Jersey]] state line in [[Easton, Pennsylvania|Easton]] |counties=[[Lebanon County, Pennsylvania|Lebanon]], [[Berks County, Pennsylvania|Berks]], [[Lehigh County, Pennsylvania|Lehigh]], [[Northampton County, Pennsylvania|Northampton]] |previous_type=PA |previous_route=77 |next_type=PA 1960 |next_route=78 |browse={{pa browse|previous_type=PA|previous_route=177|route=I-178|next_type=PA|next_route=178}} }} '''Interstate 78''' ('''I-78''') is a major east–west [[Interstate Highway]] stretching from [[Union Township, Lebanon County, Pennsylvania]], in the west to the [[Holland Tunnel]] and [[New York City]] in the east. In [[Pennsylvania]], I-78 runs for about {{Convert|78|mi|km}} from the western terminus at [[Interstate 81 in Pennsylvania|I-81]] in Union Township east to the [[New Jersey]] state line near [[Easton, Pennsylvania|Easton]] in [[Northampton County, Pennsylvania|Northampton County]].
Much of I-78 west of [[Allentown, Pennsylvania|Allentown]] predates the [[Interstate Highway System]] as a freeway upgrade of [[U.S. Route 22 in Pennsylvania|U.S. Route 22]] (US 22), which runs [[Concurrency (road)|concurrently]] with I-78 between [[Bethel Township, Lebanon County, Pennsylvania|Bethel Township]] and [[Upper Macungie Township, Pennsylvania|Upper Macungie Township]]. The Interstate, originally planned as '''Interstate 80N''' ('''I-80N'''), was supposed to continue its concurrency with US 22 to the New Jersey state line but was realigned to the south due to local opposition.
Two auxiliary routes, '''Interstate 178''' ('''I-178''') and [[Interstate 378|I-378]], were also planned as spurs into Allentown and [[Bethlehem, Pennsylvania|Bethlehem]] respectively, but I-178 was never built and I-378 became [[Pennsylvania Route 378]] (PA 378) since it did not connect to I-78.
==Route description== ===Lebanon and Berks counties=== [[File:2022-08-16 16 42 01 View east along Interstate 78 and U.S. Route 22 (William Penn Highway) just east of Exit 23 in Upper Bern Township, Berks County, Pennsylvania.jpg|thumb|left|I-78/US 22 eastbound past the Shartlesville exit]] I-78 begins at an interchange with [[Interstate 81 in Pennsylvania|I-81]] in [[Union Township, Lebanon County, Pennsylvania|Union Township]] in [[Lebanon County, Pennsylvania|Lebanon County]], heading east as a four-lane [[freeway]]. In Lebanon County, I-78 is known as the 78th Division Highway.<ref>{{Cite web |date=December 21, 1998 |title=Roxanne H. Jones Avenue, 78th Division, POW/MIA Remembrance and Prisoner of War/Missing in Action Highways and Arthur F. Detisch Memorial Bridge - Designations |url=https://www.legis.state.pa.us/WU01/LI/LI/US/PDF/1998/0/0139..PDF |access-date=May 30, 2022 |website=www.legis.state.pa.us}}</ref> The road passes under [[Pennsylvania Route 72|PA 72]] and turns northeast through a mix of farmland and woodland, crossing the [[Swatara Creek]] into [[Swatara Township, Lebanon County, Pennsylvania|Swatara Township]]. The freeway continues through agricultural areas with some trees, curving east and entering [[Bethel Township, Lebanon County, Pennsylvania|Bethel Township]]. I-78 passes north of [[Fredericksburg, Lebanon County, Pennsylvania|Fredericksburg]] and comes to an eastbound exit and westbound entrance with the northern terminus of [[Pennsylvania Route 343|PA 343]]. Following this, the freeway passes through more rural areas with some nearby development and reaches a westbound exit and eastbound entrance with [[U.S. Route 22 in Pennsylvania|US 22]] ([[William Penn Highway]]). At this point, US 22 becomes [[concurrency (road)|concurrent]] with I-78 and the median of the freeway narrows from a grassy median to a [[Jersey barrier]].<ref name=GM>{{google maps|url=https://www.google.com/maps/dir/40.4250954,-76.5223815/40.6719516,-75.177959/@40.5533359,-76.4710648,152456m/am=t/data=!3m1!1e3!4m2!4m1!3e0?hl=en|access-date=October 16, 2019}}</ref><ref name=PennDOTLebanon>{{cite map|publisher=[[Pennsylvania Department of Transportation|PennDOT]]|title=Lebanon County, Pennsylvania Highway Map|url=http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/Lebanon_GHSN.PDF|year=2019|access-date=October 16, 2019|archive-date=October 16, 2015|archive-url=https://web.archive.org/web/20151016165444/http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/lebanon_GHSN.PDF|url-status=dead}}</ref>
I-78/US 22 enters [[Bethel Township, Berks County, Pennsylvania|Bethel Township]] in [[Berks County, Pennsylvania|Berks County]] and heads east-northeast through agricultural areas to the south of the [[Blue Mountain (Pennsylvania)|Blue Mountain]] ridge, coming to a [[diamond interchange]] with [[Pennsylvania Route 645|PA 645]] north of [[Frystown, Pennsylvania|Frystown]]. The road continues through farmland with some warehouses and reaches a diamond interchange with [[Pennsylvania Route 501|PA 501]] north of [[Bethel, Berks County, Pennsylvania|Bethel]]. The freeway heads through a mix of farms and woods, passing to the south of [[Grimes Airport]] and coming to a [[right-in/right-out]] interchange with Court Street eastbound and Frantz Road westbound; this interchange has no access across the freeway. I-78/US 22 soon reaches a diamond interchange with Midway Road as it passes through more rural land, coming to a diamond interchange with [[Pennsylvania Route 419|PA 419]] south of [[Schubert, Pennsylvania|Schubert]]. Past this interchange, the road runs through a mix of farms and woods, crossing the [[Little Swatara Creek]] into [[Upper Tulpehocken Township, Pennsylvania|Upper Tulpehocken Township]]. The freeway reaches a diamond interchange with [[Pennsylvania Route 183|PA 183]] north of [[Strausstown, Pennsylvania|Strausstown]] and continues through agricultural areas with some woodland. I-78/US 22 crosses [[Northkill Creek]] into [[Upper Bern Township, Pennsylvania|Upper Bern Township]] and comes to a diamond interchange with Mountain Road north of [[Shartlesville, Pennsylvania|Shartlesville]].<ref name=GM/><ref name=PennDOTBerks/> At this point, I-78/US 22 becomes the CMSgt. Richard L. Etchberger Memorial Highway, in honor of [[Richard Etchberger]].<ref>{{Cite web |date=May 27, 2011 |title=CMSgt. Richard L. Etchberger Memorial Highway - Designation |url=https://www.legis.state.pa.us/WU01/LI/LI/US/PDF/2011/0/0004..PDF |access-date=May 30, 2022 |website=www.legis.state.pa.us}}</ref> Following this interchange, the road heads northeast through farm fields with some trees and homes and crosses into [[Tilden Township, Berks County, Pennsylvania|Tilden Township]].<ref name=GM/><ref name=PennDOTBerks>{{cite map|publisher=[[Pennsylvania Department of Transportation|PennDOT]]|title=Berks County, Pennsylvania Highway Map|url=http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/Berks_GHSN.PDF|year=2019|access-date=October 16, 2019|archive-date=October 16, 2015|archive-url=https://web.archive.org/web/20151016165520/http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/berks_GHSN.PDF|url-status=dead}}</ref>
In Tilden Township, the freeway continues northeast and reaches a [[partial cloverleaf interchange]] with [[Pennsylvania Route 61|PA 61]] in a business area that includes a {{convert|250000|ft2|m2|adj=on}} [[Cabela's]] store. Past PA 61, I-78/US 22 comes to a bridge over the [[Reading Blue Mountain and Northern Railroad]]'s [[Reading Division]] line and the [[Schuylkill River]]. Upon crossing the river, I-78/US 22 enters the borough of [[Hamburg, Pennsylvania|Hamburg]] and passes through residential areas, coming to a diamond interchange at North 4th Street that serves Hamburg. The road leaves Hamburg for [[Windsor Township, Berks County, Pennsylvania|Windsor Township]] and heads through agricultural areas with some woods and homes, curving to the east. Farther east, the parallel Blue Mountain ridge heads further north from the freeway. I-78/US 22 crosses into [[Greenwich Township, Berks County, Pennsylvania|Greenwich Township]] and comes to a partial cloverleaf interchange with [[Pennsylvania Route 143|PA 143]] north of the borough of [[Lenhartsville, Pennsylvania|Lenhartsville]]. The CMSgt. Richard L. Etchberger Memorial Highway name for I-78/US 22 ends at this interchange. Past this interchange, the road crosses [[Maiden Creek]] and runs through a mix of farm fields and woodland. Farther east, the freeway reaches a diamond interchange with [[Pennsylvania Route 737|PA 737]] south of [[Krumsville, Pennsylvania|Krumsville]]. The road continues east through rural land with some nearby development, passing through the northern corner of [[Maxatawny Township, Berks County, Pennsylvania|Maxatawny Township]].<ref name=GM/><ref name=PennDOTBerks/>
===Lehigh and Northampton counties=== [[File:2022-08-16 17 26 22 View east along Interstate 78 and U.S. Route 22 at Exit 51 (U.S. Route 22 EAST, TO Interstate 476, TO NORTH State Route 309, PA Turnpike, LVI Airport) in Upper Macungie Township, Lehigh County, Pennsylvania.jpg|thumb|I-78 eastbound at split with US 22 eastbound in Upper Macungie Township]] I-78/US 22 enters [[Weisenberg Township, Pennsylvania|Weisenberg Township]] in [[Lehigh County, Pennsylvania|Lehigh County]], where the freeway becomes the Walter J. Dealtrey Memorial Highway<ref>{{cite news|author= Steve Esack |url=https://www.mcall.com/2004/01/30/section-of-i-78-named-to-honor-businessman-walter-j-dealtrey-ceremony-remembers-man-who-worked-for-completion-of-road/ |title=Section of I-78 named to honor businessman Walter J. Dealtrey - Morning Call |publisher=Articles.mcall.com |date=2004-01-30 |access-date=2013-01-29}}</ref> and continues east through farms and woods in the [[Lehigh Valley]], passing north of [[New Smithville, Pennsylvania|New Smithville]]. The road passes south of warehouses and comes to a diamond interchange with [[Pennsylvania Route 863|PA 863]].
Following this interchange, the freeway heads to the south of more warehouses and runs through more rural areas with some homes, crossing into [[Upper Macungie Township, Pennsylvania|Upper Macungie Township]]. I-78/US 22 runs between farm fields to the north and warehouses and industrial development to the south before it comes to a [[cloverleaf interchange]] with [[Pennsylvania Route 100|PA 100]] in a business area in [[Fogelsville, Pennsylvania|Fogelsville]]. After the PA 100 interchange, the freeway widens to six lanes and heads east through industrial areas, coming to a bridge over [[Norfolk Southern]] Railway's [[Catasauqua and Fogelsville Railroad|C&F Secondary]] railroad line before curving northeast. In [[Kuhnsville, Pennsylvania|Kuhnsville]], US 22 splits from I-78 at an eastbound exit and westbound entrance by heading northeast on a freeway called the Lehigh Valley Thruway. From here, I-78 continues east-southeast as a four-lane freeway, passing residential subdivisions with some commercial development. The freeway continues southeast and passes over [[Interstate 476|I-476]] ([[Pennsylvania Turnpike Northeast Extension]]) before it comes to a westbound exit and eastbound entrance with the [[Pennsylvania Route 309|PA 309]] freeway.<ref name=GM/><ref name=PennDOTLehigh>{{cite map|publisher=[[Pennsylvania Department of Transportation|PennDOT]]|title=Lehigh County, Pennsylvania Highway Map|url=http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/lehigh_GHSN.PDF|year=2019|access-date=October 16, 2019|archive-date=October 16, 2015|archive-url=https://web.archive.org/web/20151016164657/http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/lehigh_GHSN.PDF|url-status=dead}}</ref>
At this point, PA 309 becomes concurrent with I-78 and the freeway enters [[Lower Macungie Township, Pennsylvania|Lower Macungie Township]], widening to six lanes and running past commercial development to the southwest of the [[Dorney Park & Wildwater Kingdom]] amusement park. The freeway reaches a partial cloverleaf interchange with the northern terminus of [[U.S. Route 222|US 222]] and the southern terminus of [[Pennsylvania Route 222|PA 222]] at Hamilton Boulevard, which provides access to the cities of [[Allentown, Pennsylvania|Allentown]] and [[Reading, Pennsylvania|Reading]]. Following this interchange, the road crosses into [[South Whitehall Township, Pennsylvania|South Whitehall Township]] and heads east between residential areas to the north and farm fields to the south, before entering [[Salisbury Township, Lehigh County, Pennsylvania|Salisbury Township]] and passing north of [[Lehigh Valley Hospital–Cedar Crest]]. Past the hospital, I-78/PA 309 comes to a partial cloverleaf interchange with the northern terminus of the southern section of [[Pennsylvania Route 29|PA 29]] at [[Cedar Crest Boulevard]] before running between residential areas to the north and office buildings to the south. The freeway enters Allentown and runs through woodland, crossing [[Little Lehigh Creek]] before it passes through a small section of Salisbury Township. The road heads back into Allentown and runs near residential areas, passing south of [[Allentown Queen City Municipal Airport]] before it comes to a partial cloverleaf interchange at [[Lehigh Street]]. I-78/PA 309 runs near industrial areas and passes over Norfolk Southern Railway's [[Reading Line]] before coming to a westbound exit ramp serving Emaus Avenue. The freeway passes near neighborhoods before it leaves Allentown for Salisbury Township, where it ascends forested [[South Mountain (Eastern Pennsylvania)|South Mountain]]. The highway comes to an eastbound exit and westbound entrance with Rock Road that provides a connection to [[Pennsylvania Route 145|PA 145]] in [[Summit Lawn, Pennsylvania|Summit Lawn]], where it crosses into [[Upper Saucon Township, Pennsylvania|Upper Saucon Township]]. Following this, the freeway turns southeast and comes to an interchange with the southern terminus of PA 145 in [[Lanark, Pennsylvania|Lanark]], at which point PA 309 splits from I-78 by heading southeast on a surface road toward the borough of [[Quakertown, Pennsylvania|Quakertown]]. From here, I-78 turns northeast, narrowing to four lanes with the median changing from a Jersey barrier to a grassy median. The road heads between South Mountain to the northwest and a mix of farm fields, woods, and development to the southeast.<ref name=GM/><ref name=PennDOTLehigh/>
[[File:2022-08-16 08 31 14 View west along Interstate 78 just west of Exit 67 in Bethlehem, Northampton County, Pennsylvania.jpg|thumb|left|I-78 westbound past the PA 412 interchange in Bethlehem]] I-78 enters [[Lower Saucon Township, Pennsylvania|Lower Saucon Township]] in [[Northampton County, Pennsylvania|Northampton County]] and passes over [[Pennsylvania Route 378|PA 378]] as it curves north near residential development. The road turns to the east-northeast and runs between forested South Mountain to the north and farmland and homes to the south, entering [[Bethlehem, Pennsylvania|Bethlehem]]. The freeway crosses the [[Saucon Creek]] and becomes the border between Bethlehem to the north and the borough of [[Hellertown, Pennsylvania|Hellertown]] to the south before it comes to a partial cloverleaf interchange with [[Pennsylvania Route 412|PA 412]] that serves Bethlehem and Hellertown. Following this interchange, I-78 fully enters Bethlehem before it crosses back into Lower Saucon Township, turning to the northeast and running through wooded areas with some farm fields and homes, heading across the [[East Branch Saucon Creek]]. The road comes to a [[trumpet interchange]] with the southern terminus of the [[Pennsylvania Route 33|PA 33]] freeway, which heads north toward the [[Pocono Mountains]] region. Past this interchange, the freeway crosses into [[Williams Township, Northampton County, Pennsylvania|Williams Township]] and continues through rural areas with some development, crossing into the borough of [[Glendon, Pennsylvania|Glendon]]. I-78 turns east as it passes south of industrial areas, leaving Glendon for Williams Township. The road comes to a diamond interchange with Morgan Hill Road, which heads north into [[Easton, Pennsylvania|Easton]] and provides access to [[Pennsylvania Route 611|PA 611]] via city streets. Past this interchange, the freeway widens to six lanes and passes near residential and commercial development, coming to a westbound [[welcome center]] and a westbound toll plaza for the [[Interstate 78 Toll Bridge]]. From here, I-78 runs through wooded areas and turns southeast, heading onto the Interstate 78 Toll Bridge, which carries the freeway over PA 611 and the [[Delaware Canal]] before crossing the [[Delaware River]] where I-78 enters [[New Jersey]].<ref name=GM/><ref name=PennDOTNorthampton>{{cite map|publisher=[[Pennsylvania Department of Transportation|PennDOT]]|title=Northampton County, Pennsylvania Highway Map|url=http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/Northampton_GHSN.PDF|year=2019|access-date=October 16, 2019|archive-date=December 6, 2017|archive-url=https://web.archive.org/web/20171206151349/http://www.dot7.state.pa.us/BPR_pdf_files/Maps/GHS/Roadnames/Northampton_GHSN.PDF|url-status=dead}}</ref>
==History== [[File:I-78-US 22 EB from Adams Road overpass.jpeg|thumb|right|I-78/US 22 eastbound in Upper Macungie Township]] Construction of the freeway between [[Lebanon County, Pennsylvania|Lebanon]] and [[Lehigh County, Pennsylvania|Lehigh]] counties took place between 1950 and 1970, originally as an upgraded alignment of [[U.S. Route 22 in Pennsylvania|US 22]]. All of I-78 was completed by 1989. When the Interstate Highway System numbers were first assigned in 1957, the route was planned as I-80N.<ref>{{cite map|title=Official Route Numbering for the National System of Interstate and Defense Highways|publisher=American Association of State Highway Officials|date=August 14, 1957|url=https://en.wikipedia.org/wiki/File:Interstate_Highway_plan_August_14,_1957.jpg|access-date=January 3, 2017}}</ref> Prior to the late 1960s, I-78 was to be routed on the [[Lehigh Valley Thruway]] across to [[Phillipsburg, New Jersey]], continuing the concurrency with US 22; however, because of heavy opposition by residents of Phillipsburg, the [[Pennsylvania Department of Transportation]] (PennDOT) and the [[New Jersey Department of Transportation]] (NJDOT) opted to build the new southerly route I-78 follows today.{{cn|date=November 2024}}
===Interstate 178=== {{About|the former proposed Interstate Highway|the former state highway|Pennsylvania Route 178|section=yes}} {{Infobox road small |state=PA |type=I 1957 |route=178 |location=[[Allentown, Pennsylvania|Allentown, PA]] |formed=1950s |decommissioned=1971 }} '''Interstate 178''' ('''I-178''') was a proposed spur from I-78 but was canceled because the [[Liberty Bell Museum]], which had since closed, was in the path of the proposed expressway. Additionally, locals opposed the destruction of Sixth and Seventh Streets to accommodate the highway. The planned northern terminus would have been between the 15th Street and PA 145 interchanges.<ref>{{cite web|url=http://www.pahighways.com/interstates/pdi.html| title=Pennsylvania's Dearly Departed Interstates}}</ref> If built, I-178 would have connected [[U.S. Route 22 in Pennsylvania|US 22]], formerly designated I-78, into [[Allentown, Pennsylvania|Allentown]].<ref>{{cite web|url=http://www.kurumi.com/roads/3di/ix78.html#178pa|title=I-178 (cancelled) Pennsylvania }}</ref>
This route was shown in [[Rand McNally]] atlases in the late 1960s but was not included in the 1971 federal Interstate route log.<ref>{{cite web|url=http://www.kurumi.com/roads/3di/ix78.html#178pa|title=1963 Rand McNally}}</ref> The route was supposed to end near [[Muhlenberg College]].<ref>{{cite web|url=http://www.pahighways.com/graphics/maps/I178map.jpg|title=I-178 Map}}</ref>
===Interstate 378=== {{main|Interstate 378}} {{Infobox road small |state=PA |type=I 1957 |route=378 |location=[[Bethlehem, Pennsylvania|Bethlehem, PA]] |formed=1968 |decommissioned=1971 }} I-378 was the designation for a spur route that would extend from I-78 into Bethlehem. At the time, I-78 was to be designated as the Lehigh Valley Thruway, concurrent with US 22. Unlike I-178, the route was built. When I-78 was built as a new route south of this area, I-378 had no direct connection to I-78 and therefore was renumbered to PA 378. The route still remains, as a freeway with exits and their own numbers.
When I-178 and I-378 were planned (and I-378 was built), I-78 was to run the length of the Lehigh Valley Thruway. Later, I-78 was built as a new route south of the Thruway. This was due to opposition to continue the concurrency with the Lehigh Valley Thruway into New Jersey.
===Improvements in Berks County=== [[File:2022-09-01 10 18 56 View west along Interstate 78 and U.S. Route 22 (William Penn Highway) from the overpass for Pennsylvania State Route 737 (Krumsville Road) in Greenwich Township, Berks County, Pennsylvania.jpg|thumb|right|I-78/US 22 westbound at the PA 737 interchange in Krumsville]] In 2013, PennDOT announced plans to improve a portion of I-78 in eastern [[Berks County, Pennsylvania|Berks County]]. The project will redesign the PA 737 interchange, add truck lanes, widen lanes and shoulders, and raise the height of three overpasses.<ref name=re>{{cite news|last=Devlin|first=Ron|title=PennDOT unveils upgrade to Interstate 78|work=Reading Eagle|date=January 18, 2013|url=http://readingeagle.com/article.aspx?id=444438|archive-url=https://archive.today/20130216170031/http://readingeagle.com/article.aspx?id=444438|url-status=dead|archive-date=February 16, 2013|access-date=January 18, 2013}}</ref> Construction began in 2015 and is planned to be completed in 2025 at a cost of $412.6 million.<ref>{{cite news |last1=Winfrey |first1=Katiera |last2=Wivell |first2=Dawn |title=PennDOT, Berks Planning Commission provide update on I-78 |url=http://www.wfmz.com/news/berks/penndot-berks-planning-commission-provide-update-on-i-78/1053118572 |access-date=March 16, 2019 |publisher=69 News |date=March 7, 2019}}</ref>{{Update after|2025}} In 2020, a project began to improve the section of I-78 in Hamburg by reconstructing and reconfiguring the PA 61 interchange and widening and rehabilitating the bridges over the Schuylkill River and Port Clinton Avenue. Construction on this project is planned to be completed in December 2025 at a cost of $125.4 million.<ref>{{cite news|last=Lee|first=Christine|title=Bridges on I-78, Route 61 to be upgraded, replaced|work=Republican Herald|location=Pottsville, PA|date=February 18, 2020|url=https://www.republicanherald.com/news/bridges-on-i-78-route-61-to-be-upgraded-replaced/collection_f8411a8b-db1e-5bb5-980b-b746288d9e14.html|accessdate=March 13, 2021}}</ref>{{Update after|2025|12}} {{-}}
==Exit list== {{jcttop|old|exit|state=PA|length_ref=<ref>Calculated using DeLorme Street Atlas USA 2007</ref>|exit_ref=<br /><ref name=newexits/>|old_ref=<br /><ref name=newexits>{{Cite web|url=http://www.dot.state.pa.us/public/pdf/mileageb.pdf|title=Pennsylvania Exit Numbering|access-date=October 2, 2007|publisher=Pennsylvania Department of Transportation|archive-date=December 23, 2015|archive-url=https://web.archive.org/web/20151223153329/http://www.dot.state.pa.us/public/pdf/mileageb.pdf|url-status=dead}}</ref>}} {{PAint|old |county=Lebanon |cspan=4 |location=Union Township |ctdab=Lebanon |lspan=2 |mile=0.00 |exit=1B |road={{jct|state=PA|I|81|dir1=south|city1=Harrisburg}} |notes=Western terminus }} {{PAint|old |mile=0.55 |exit=1A |road={{jct|state=PA|I|81|dir1=north|city1=Hazleton}} |notes=Westbound exit and eastbound entrance; exit 89 on I-81 |type=incomplete }} {{PAint|old |location=Bethel Township |ctdab=Lebanon |lspan=2 |mile=5.85 |old=1 |exit=6 |type=incomplete |road={{jct|state=PA|PA|343|dir1=south|city1=Lebanon|city2=Fredericksburg|countydab2=Lebanon}} |notes=Eastbound exit and westbound entrance; northern terminus of PA 343 }} {{PAint|old |mile=7.90 |old=1 |exit=8 |type=concur |road={{jct|state=PA|US|22|dir1=west|to2=to|PA|343|city1=Lebanon|city2=Fredericksburg|countydab2=Lebanon}} |notes=Western end of US 22 concurrency; westbound exit and eastbound entrance }} {{PAint|old |county=Berks |cspan=11 |location=Bethel Township |ctdab=Berks |lspan=5 |mile=10.21 |old=2 |exit=10 |road={{jct|state=PA|PA|645|city1=Frystown}} }} {{PAint|old |mile=12.68 |old=3 |exit=13 |road={{jct|state=PA|PA|501|city1=Bethel|countydab1=Berks}} }} {{PAint|old |mile=14.67 |old=4 |exit=15 |type=incomplete |road=[[Grimes, Pennsylvania|Grimes]] |notes=[[Right-in/right-out]] connections only; access via Court Street/Frantz Road; no tractor trailers }} {{PAint|old |mile=15.40 |old=5 |exit=16 |road=[[Midway, Berks County, Pennsylvania|Midway]] |notes=Access via Midway Road }} {{PAint|old |mile=16.58 |old=6 |exit=17 |road={{jct|state=PA|PA|419|city1=Rehrersburg}} |notes=Access to [[Conrad Weiser Homestead]] }} {{PAint|old |location=Upper Tulpehocken Township |mile=18.65 |old=7 |exit=19 |road={{jct|state=PA|PA|183|city1=Strausstown}} }} {{PAint|old |location=Upper Bern Township |mile=22.71 |old=8 |exit=23 |road=[[Shartlesville, Pennsylvania|Shartlesville]] |notes=Access via Mountain Road }} {{PAint|old |location=Tilden Township |mile=29.11 |mile2=29.35 |old=9 |exit=29 |road={{jct|state=PA|PA|61|city1=Pottsville|city2=Reading}} }} {{PAint|old |location=Hamburg |mile=30.19 |old=10 |exit=30 |road=[[Hamburg, Pennsylvania|Hamburg]] |notes=Access via North 4th Street }} {{PAint|old |location=Greenwich Township |lspan=2 |mile=35.23 |old=11 |exit=35 |road={{jct|state=PA|PA|143|city1=Lenhartsville}} }} {{PAint|old |mile=40.27 |old=12 |exit=40 |road={{jct|state=PA|PA|737|city1=Kutztown|city2=Krumsville}} |notes=Access to [[Kutztown University of Pennsylvania]] }} {{PAint|old |county=Lehigh |cspan=10 |location=Weisenberg Township |mile=44.96 |old=13 |exit=45 |road={{jct|state=PA|PA|863|city1=Lynnport|city2=New Smithville}} }} {{PAint|old |location=Upper Macungie Township |lspan=2 |mile=49.26 |mile2=49.55 |old=14 |exit=49 |road={{jct|state=PA|PA|100|city1=Trexlertown|city2=Fogelsville}} |notes=Signed as exits 49A (south) and 49B (north) }} {{PAint|old |mile=50.89 |old=15 |exit=51 |type=concur |road={{jct|state=PA|US|22|dir1=east|to2=to|I|476|PANE||PA|309|dir4=north|location1=[[Lehigh Valley International Airport]]}} |notes=Eastern end of US 22 concurrency; eastbound exit and westbound entrance }} {{PAint|old |location=Lower Macungie Township |mile=53.67 |old= |exit=53 |type=concur |road={{jct|state=PA|PA|309|dir1=north|to2=to|I|476|PANE||city1=Tamaqua}} |notes=Western end of PA 309 concurrency; westbound exit and eastbound entrance }} {{PAint|old |township1=Lower Macungie |township2=South Whitehall |mile=54.12 |mile2=54.51 |old=16 |exit=54 |road={{jct|state=PA|US|222|dir1=south|PA|222|dir2=north|name2=Hamilton Boulevard}} |notes=Signed as exits 54A (south) and 54B (north) westbound; northern terminus of US 222; southern terminus of PA 222 }} {{PAint|old |location=Salisbury Township |ctdab=Lehigh |mile=55.41 |old=17 |exit=55 |road={{jct|state=PA|PA|29|dir1=south|name1=[[Cedar Crest Boulevard]]}} |notes=Northern terminus of PA 29 }} {{PAint|old |location=Allentown |lspan=2 |mile=57.20 |old=18 |exit=57 |road=[[Lehigh Street]] }} {{PAint|old |mile=57.63 |old=18B |exit=58 |type=incomplete |road=Emaus Avenue south |notes=Westbound exit only }} {{PAint|old |location=Upper Saucon Township |lspan=2 |mile=58.83 |old=19 |exit=59 |type=incomplete |road={{jct|state=PA|to1=yes|PA|145|city1=Summit Lawn}} |notes=Eastbound exit and westbound entrance; access via Rock Road }} {{PAint|old |mile=59.92 |mile2=60.30 |old=20 |exit=60 |type=concur |road={{jct|state=PA|PA|145|dir1=north|PA|309|dir2=south|to3=yes|road|South 4th Street|city1=Quakertown}} |notes=Eastern end of PA 309 concurrency; no eastbound access to PA 145; signed as exits 60A (south) and 60B (north) westbound }} {{PAint|old |county=Northampton |cspan=4 |location=Bethlehem |mile=66.36 |old=21 |exit=67 |road={{jct|state=PA|PA|412|city1=Hellertown|city2=Bethlehem}} |notes=Access to [[Lehigh University]] and [[Wind Creek Bethlehem]] }} {{PAint|old |location=Lower Saucon Township |mile=71.04 |old= |exit=71 |road={{jct|state=PA|PA|33|dir1=north|to2=to|US|22|city1=Stroudsburg}} |notes=Southern terminus of PA 33; access to [[Lehigh Valley International Airport]] and [[Pocono Mountains]] }} {{PAint|old |location=Williams Township |ctdab=Northampton |lspan=2 |mile=75.00 |old=22 |exit=75 |road={{jct|state=PA|to1=to|PA|611|city1=Easton|location2=[[Philadelphia]]}} |notes=Access via Morgan Hill Road; access to [[Crayola Experience|Crayola Attractions]] and [[Lafayette College]] }} {{PAint|old |mile= |place=Rest area and welcome center (westbound) }} {{jctbridge|old |river=[[Delaware River]] |lspan=2 |mile=77.10 |mspan=2 |bridge=[[Interstate 78 Toll Bridge]] (westbound toll) |type=toll }} {{PAint|old |mile=none |exit=— |road={{jct|state=NJ|I|78|dir1=east|location1=[[New York City]]}} |notes=Continuation into [[New Jersey]] }} {{jctbtm|col=8|keys=concur,incomplete,toll}}
==See also== *{{Portal-inline|U.S. Roads}} *{{Portal-inline|Pennsylvania}}
==References== {{reflist}}
{{3di|78}} {{state detail page browse|type=I|route=78|state=Pennsylvania|stateafter=New Jersey}} {{Attached KML|display=title,inline}}
{{commons category}}
{{Authority control}}
{{DEFAULTSORT:Interstate 078 In Pennsylvania}} [[Category:Interstate 78| Pennsylvania]] [[Category:Interstate Highways in Pennsylvania|78]] [[Category:Roads in the Harrisburg, Pennsylvania area]] [[Category:Transportation in Berks County, Pennsylvania]] [[Category:Transportation in Lebanon County, Pennsylvania]] [[Category:Transportation in Lehigh County, Pennsylvania]] [[Category:Transportation in Northampton County, Pennsylvania]]