{{Short description|Highway in New Jersey}} {{Use American English|date=April 2025}} {{Use mdy dates|date=February 2025}} {{Infobox road |state=NJ |type=NJ |route=24 |length_mi=10.42 |length_ref=<ref name=SLD>{{cite web |publisher = New Jersey Department of Transportation |url = http://www.state.nj.us/transportation/refdata/sldiag/pdf/00000024__-.pdf |title = Route 24 straight line diagram |access-date = March 17, 2020 }}</ref> |map={{maplink-road}} |map_custom=yes |direction_a=West |terminus_a={{jct|state=NJ|I|287}} in Hanover |junction={{jct|state=NJ|NJ|124|CR|649|county2=Essex}} in Millburn |direction_b=East |terminus_b={{jct|state=NJ|I|78}} in Springfield |established= 1927 (1976 on present alignment) |counties=Morris, Essex, Union |previous_type=NJ |previous_route=23 |next_type=NJ-old |next_route=25 }} '''Route&nbsp;24''' is a {{convert|10.42|mi|km|2|adj=on}} freeway in New Jersey, United States, that begins at a junction with Interstate&nbsp;287 (I-287) in Hanover in Morris County, passes southeast through Essex County, and ends at an interchange with I-78 in Springfield in Union County.

The route was created in 1927 to run from Phillipsburg to Newark, replacing pre-1927 Route&nbsp;12 from Phillipsburg to Penwell and pre-1927 Route&nbsp;5 from Morristown to Newark. The route was extended west to the new Easton–Phillipsburg Toll Bridge in 1938 but was cut back to U.S. Route&nbsp;22 (US&nbsp;22) in the eastern part of Phillipsburg in 1953. The western terminus was cut back further around 1970 to Hackettstown with the route west of there becoming part of Route&nbsp;57. The freeway alignment of Route&nbsp;24 between JFK Parkway and I-78 was completed in 1976.

With the completion of this freeway, Route&nbsp;24 east of JFK Parkway became Route&nbsp;124. The freeway was completed between the abandoned Triborough Road interchange and the JFK Parkway interchange in the 1970s but was not opened until 1992, when the rest of the freeway to I-287 was completed after years of legal, environmental and budgetary problems. At this time, the alignment of Route&nbsp;24 between US&nbsp;202 in Morristown and JFK Parkway became a western extension of Route&nbsp;124 while the route was officially eliminated between Hackettstown and Morristown as it followed county-maintained routes. The former route between Hackettstown and Morristown is still referred to as Route&nbsp;24 by many and is still signed as such due to local outcry.

==Route description== thumb|left|Route&nbsp;24 westbound in Chatham Route&nbsp;24 begins at an interchange with I-287 in Hanover, Morris County, heading southeast on a six-lane freeway. The route intersects Whippany Road (County Route 511 [CR&nbsp;511]) with a westbound exit and eastbound entrance and crosses into Morris Township.<ref name=SLD/> Route&nbsp;24 crosses back into Hanover Township, where it passes over Park Avenue (CR&nbsp;623) and narrows to four lanes, and intersects Columbia Turnpike (CR&nbsp;510) at a cloverleaf interchange near the Morristown Municipal Airport.<ref name=SLD/><ref name=gm>{{google maps |url = https://maps.google.com/maps?f=d&source=s_d&saddr=I-287+%40+40.816,+-74.445&daddr=Interstate+78+Exit+48&geocode=%3BFac3bQIdJOeR-yF6nWlhGWzPTA&hl=en&mra=ls&sll=40.81303,-74.42585&sspn=0.030532,0.054932&ie=UTF8&ll=40.766502,-74.383621&spn=0.122212,0.219727&t=h&z=12 |title = Overview of New Jersey Route&nbsp;24 |access-date = March 30, 2009 }}</ref> Just past this interchange, the freeway crosses into Florham Park, heading southeast and passing through Madison before crossing back into Florham Park. Route&nbsp;24 passes under Triborough Road and enters Chatham. An abandoned cloverleaf interchange exists at this location, as Triborough Road was to be an extension of Eisenhower Parkway.<ref name=SLD/><ref name=gm/>

thumb|right|View east at the eastern end of Route&nbsp;24 at I-78 in Springfield Township Route&nbsp;24 crosses into Millburn, Essex County, widens to six lanes, and passes over the Passaic River. In Millburn Township, the route intersects Route&nbsp;124, JFK Parkway (CR 649), and River Road.<ref name=SLD/> This interchange provides access to The Mall at Short Hills.<ref name=gm/> Past this interchange, Route&nbsp;124 becomes a frontage road for Route&nbsp;24, and the freeway forms the border between Summit in Union County and Millburn. After bisecting the Canoe Brook Country Club, the highway intersects Summit Avenue (CR&nbsp;657). Route&nbsp;24 continues along the Summit–Millburn border until it fully enters Millburn and intersects Hobart Avenue (CR&nbsp;608) with a westbound exit and eastbound entrance.<ref name=SLD/> Past this interchange, the Route&nbsp;124 frontage road ends; Route&nbsp;124 follows the freeway closely to the north as a two-way road, and Route&nbsp;24 crosses into Summit before passing under NJ Transit's Morris & Essex Lines. The freeway then intersects Broad Street (CR&nbsp;512) with a westbound exit and entrance and eastbound exit and Morris Avenue (CR&nbsp;527) with an eastbound exit and entrance, entering Springfield.<ref name=SLD/> Route&nbsp;24 continues southeast toward its terminus at an interchange with I-78.<ref name=SLD/>

==History== {{infobox road small |state=NJ |type=NJ 1926 |county= |route=S24 |location= PenwellHackettstown; SpringfieldElizabeth |length_mi= |length_round= |length_ref= |formed=1927<ref name=nj1927 /> |deleted=1953<ref name=nj1953/> }} Route&nbsp;24 follows the course of the Great Minisink Trail, and old Lenape trail running from Minisink Village in what is now Montague Township to Navesink.<ref>{{cite book |last = Snyder |first = John |year = 1969 |title = The Story of New Jersey's Civil Boundaries 1606–1968 }}</ref> In 1801, the Morris Turnpike was legislated to run along this trail from Newton through Morristown to Elizabeth. In 1806, the '''Washington Turnpike''' was legislated to run from Morristown to Philipsburg. In 1916, both of these routes were incorporated into the William Penn Highway, which diverged from the Morris Turnpike at Springfield to service Newark by the old Springfield and Newark Turnpike, and diverged north to Hackettstown via Schooley's Mountain Road and modern-day Route&nbsp;57. That same year, the state put a part of pre-1927 Route&nbsp;12 (from Phillipsburg to Penwell) and part of pre-1927 Route&nbsp;5 (from Morristown to Newark) on this route.

In the 1927 highway renumbering, Route&nbsp;24 was created to run from Downtown Phillipsburg at the Northampton Street Bridge over the Delaware River east to Route&nbsp;25 (now US&nbsp;1/9) in Newark, almost completely superseding the William Penn Highway. The only diversion from that route was a proposed highway from Penwell to Long Valley, closely paralleling the Washington Turnpike.<ref name="nj1927">State of New Jersey, Laws of 1927, Chapter 319.</ref><ref name="Map">{{cite map |url = http://www.jimmyandsharonwilliams.com/njroads/1920s/images/1927_routes.gif |title = 1927 New Jersey Road Map |publisher = State of New Jersey |access-date = October 8, 2008 |url-status = dead |archive-url = https://web.archive.org/web/20071031111034/http://www.jimmyandsharonwilliams.com/njroads/1920s/images/1927_routes.gif |archive-date = October 31, 2007 }}</ref> Two spurs of Route&nbsp;24 numbered Route&nbsp;S24 were created in 1927, both of which were renumbered in the 1953 renumbering. The western Route&nbsp;S24 replaced the William Penn Highway and ran northeast from Penwell to Hackettstown, and is now mostly Route&nbsp;57. The eastern Route&nbsp;S24 ran from Springfield to Elizabeth, and is now mostly Route&nbsp;82.<ref name="nj1927" /><ref name="nj1953">{{Cite book |title = 1953 renumbering |url = http://en.wikisource.org/wiki/1953_New_Jersey_state_highway_renumbering |publisher = New Jersey Department of Highways |access-date = July 31, 2009 |url-status = dead |archive-url = https://web.archive.org/web/20110628183145/http://en.wikisource.org/wiki/1953_New_Jersey_state_highway_renumbering |archive-date = June 28, 2011 }}</ref> In addition, Route&nbsp;24N was a planning number for the approach to the new Delaware River crossing (the Easton–Phillipsburg Toll Bridge) in Phillipsburg that opened in 1938.<ref name="nj1938">State of New Jersey, Laws of 1938, Chapter 85.</ref> However, before the bridge opened, Route&nbsp;24N was instead built simply as an extension of Route&nbsp;24. Between 1938 and 1941, this segment was also designated as part of a rerouted US&nbsp;22. In the 1953 renumbering, Route&nbsp;24's western terminus was cut back to US&nbsp;22 in eastern Phillipsburg (removing the concurrency in that town) and the incomplete section of Route&nbsp;24 between Penwell and Long Valley was bridged by signing the route along the former Route&nbsp;S24 and CR&nbsp;517.<ref name="nj1953" /> Around 1970, Route&nbsp;24 west of Hackettstown became part of Route&nbsp;57.<ref name="chevron">{{cite map |publisher = Chevron Corporation |title = Map of New Jersey |year = 1969 |cartography = H.M. Gousha }}</ref><ref name="esso">{{cite map |publisher = Esso |title = Map of New Jersey |year = 1970 |cartography = General Drafting }}</ref>

left|thumb|Route&nbsp;24 eastbound in Chatham Plans for the Route&nbsp;24 freeway originate in 1950 when a bypass of the many congested towns along the route was planned; this bypass was designated as a freeway in 1952. In 1959, the freeway was planned on its current alignment, running from I-287 near Morristown to I-78 in Springfield, with approval in 1960. In 1962, plans were made to extend the Route&nbsp;24 freeway west to US&nbsp;22 in Phillipsburg.<ref>{{cite book |title = Regional Highways: Status Report |publisher = Tri-State Transportation Commission |year = 1962 }}</ref> In the 1970s, this western extension was cut back to US&nbsp;206 in Chester. It was put on hold in 1982, largely because its route was planned through protected wetlands and forests.<ref>{{cite book |title = Route 24 Freeway, Administrative Action Final Environmental Impact Statement and Section 4(f) Statement |publisher = Federal Highway Administration and New Jersey Department of Transportation |year = 1982 }}</ref> In 1970, the Route&nbsp;24 freeway was planned to become part of a western extension of I-278, which would have run northwest from its current terminus at US&nbsp;1/9 in Linden to I-78, which it would have followed west for a mile to the Route&nbsp;24 freeway. However, this proposal was rejected by the Federal Highway Administration.<ref>{{cite book |title = Report on the Status of the Federal-Aid Highway Program |publisher = Committee on Public Works, U.S. Senate |year = 1970 }}</ref>

thumb|right|100px|Route 24N (planned in 1938) Construction on the section of the Route&nbsp;24 freeway between the John F. Kennedy Parkway on the Essex/Morris County border and I-78 began in 1967 and was finished in 1976. With the completion of this section, the former alignment of Route&nbsp;24 between JFK Parkway and the boundary between Maplewood and Irvington, including frontage roads built alongside a portion of the freeway in the Short Hills area, was designated as Route&nbsp;124. The section across Chatham Borough from JFK Parkway to shortly past the still-existing unused cloverleaf interchange at the Florham Park borough line, once signed as the Triborough Road, a never-built southern extension of the Eisenhower Parkway, was built in 1973-74 but not opened as it did not provide any connections to existing roads.<ref name=NJDOT1972>{{cite book |title = Master Plan for Transportation |publisher = New Jersey Department of Transportation |year = 1972 }}</ref> Plans were made to finish the rest of the freeway to I-287; however construction was halted for many years due to legal, environmental and budgetary problems. Construction finally began on this portion of freeway in 1988.<ref name=nyt82188>{{cite news |last = Cantor |first = Carla |title = After 30 Years, a Jammed 2-Lane Country Road Awaits Relief |work = The New York Times |date = August 21, 1988 }}</ref> Route&nbsp;24 was finally completed through to the interchange with I-287 in Hanover on November 17, 1992, and at that time the Route&nbsp;24 designation was limited to strictly that freeway.<ref name="sld 2006">{{cite web |url = http://www.state.nj.us/transportation/refdata/sldiag/00000024__-.pdf |title = Route 24 Straight Line Diagram |work = Internet Archives WayBack Machine |publisher = New Jersey Department of Transportation |year = 2006 |access-date = April 4, 2013 |archive-url = https://web.archive.org/web/20060320023319/http://www.state.nj.us/transportation/refdata/sldiag/00000024__-.pdf |archive-date = March 20, 2006 }}</ref>

thumb|right|Route 24 signed along its former alignment along CR 517 south of Hackettstown Following the completion of the freeway, the former signed route of Route&nbsp;24 between the intersection with US&nbsp;202 in Morristown and the JFK Parkway became a western extension of Route&nbsp;124.<ref name="statefarm">{{cite map |publisher = State Farm Insurance |title = State Farm Road Atlas |year = 1983 |author = Rand McNally }}</ref> The western portion between Route&nbsp;57 and Route&nbsp;182 in Hackettstown and US&nbsp;202 officially had the Route&nbsp;24 designation removed as the road has always been county-maintained rather than state-maintained. The New Jersey Department of Transportation (NJDOT) has tried to remove signs from this section, but locals protested because of their familiarity with the Route&nbsp;24 designation.<ref name="ragonese">{{cite news |last = Ragonese |first = Lawrence |title = Route 24: Even the Name's an Adventure |work = The Star-Ledger |date = March 25, 2001 }}</ref> Along this route, the road is known as CR&nbsp;517 from the Morris-Warren county line to the Long Valley section of Washington Township, CR&nbsp;513 from Long Valley to Chester, and CR&nbsp;510 from Chester to Morristown.<ref name="statefarm"/><ref name=510SLD>{{cite web |publisher = New Jersey Department of Transportation |url = http://www.state.nj.us/transportation/refdata/sldiag/00000510__-.pdf |archive-url = https://web.archive.org/web/20070930190043/http://www.state.nj.us/transportation/refdata/sldiag/00000510__-.pdf |archive-date = September 30, 2007 |url-status = live |title = County Route 510 straight line diagram |access-date = April 3, 2012 }}</ref><ref name=513SLD>{{cite web |publisher = New Jersey Department of Transportation |url = http://www.state.nj.us/transportation/refdata/sldiag/00000513__-.pdf |archive-url = https://web.archive.org/web/20070930165454/http://www.state.nj.us/transportation/refdata/sldiag/00000513__-.pdf |archive-date = September 30, 2007 |url-status = live |title = County Route 513 straight line diagram |access-date = April 3, 2012 }}</ref><ref name=517SLD>{{cite web |publisher = New Jersey Department of Transportation |url = http://www.state.nj.us/transportation/refdata/sldiag/00000517__-.pdf |archive-url = https://web.archive.org/web/20110622115144/http://www.state.nj.us/transportation/refdata/sldiag/00000517__-.pdf |archive-date = June 22, 2011 |url-status = live |title = County Route 517 straight line diagram |access-date = April 3, 2012 }}</ref> This route is also known as Old Route 24 along with its names and county route numbers.<ref name="ragonese"/><ref name=af>{{cite web |url = http://www.alstedefarms.com/content.php?id=196 |title = Directions to Alstede Farms |publisher = Alstede Farms |access-date = November 24, 2008 }}</ref><ref name=ctnj>{{cite web |url = http://www.chestertownship.org/directions.html |title = Directions – Chester Township NJ |publisher = Chester Township, New Jersey |access-date = November 24, 2008 }}</ref>

==Exit list== {{jcttop|exit|length_ref=<ref name=SLD/>}} {{NJint|exit |county=Morris |cspan=4 |location=Hanover Township |lspan=3 |mile=0.00 |exit=– |road={{jct|state=NJ|I|287|to2=to|I|80|city1=Somerville|city2=Mahwah}} |notes=Western terminus; exit 37 on I-287 }} {{NJint|exit |mile=0.70 |exit=1 |type=incomplete |road={{jct|state=NJ|CR|511|city1=Morristown|city2=Whippany}} |notes=Westbound exit and eastbound entrance; signed as exits 1A (south) and 1B (north) }} {{NJint|exit |mile=2.09 |exit=2 |road={{jct|state=NJ|CR|510|city1=Morristown|city2=Florham Park}} |notes=Signed as exits 2A (west) and 2B (east) }} {{NJint|exit |location=Chatham Borough |mile=5.70 |type=closed |exit=5 |road=Triborough Road |notes=Cloverleaf interchange built but never connected to a road and left abandoned<ref>{{cite web |title = Tri-Borough Road |url = https://findery.com/anth/notes/tri-borough-road |last = Sorace |first = Anthony |publisher = Findery |access-date = December 17, 2019 |archive-url = https://web.archive.org/web/20191218045548/https://findery.com/anth/notes/tri-borough-road |archive-date = December 18, 2019 |url-status = dead }}</ref> }} {{NJint|exit |county=Essex |cspan=4 |location=Millburn |lspan=4 |mile=6.99 |exit=7A |type=incomplete |road={{jct|state=NJ|NJ|124|dir1=west|location1=Chatham}} |notes=Westbound exit and eastbound entrance }} {{NJint|exit |mile=7.07 |exit=7 |road={{jct|state=NJ|road|River Road / JFK Parkway|name1=CR&nbsp;649|city1=Summit|city2=Livingston|city3=Caldwell}} |notes=Signed as exits 7B (Summit) and 7C (Livingston/Caldwell) westbound }} {{NJint|exit |mile=7.99 |exit=8 |road={{jct|state=NJ|road|Summit Avenue|name1=CR&nbsp;657 south|city1=Summit|location2=Chatham}} }} {{NJint|exit |mile=8.60 |exit=9B |type=incomplete |road={{jct|state=NJ|road|Hobart Gap Road&nbsp;/ Hobart Avenue|name1=CR&nbsp;608}} |notes=Westbound exit and eastbound entrance }} {{NJint|exit |county=Union |cspan=2 |location=Springfield Township |ctdab=Union |lspan=2 |mile=9.45 |exit=9A |road={{jct|state=NJ|road|Broad Street|name1=CR&nbsp;512 west|city1=Summit|city2=Millburn|location3=Springfield}} |notes=Signed as exits 9A (Broad Street) and 9B (Summit/Millburn) eastbound; access to Summit/Millburn via CR&nbsp;527 }} {{NJint|exit |mile=10.42 |exit=– |road={{jct|state=NJ|I|78|to2=to|I-Toll|95|NJTP2||GSP2||city1=Newark|location2=Holland Tunnel|location3=New York City|city4=Clinton}} |notes=Eastern terminus; exit 48 on I-78 }} {{jctbtm|exit|keys=incomplete,closed}}

==See also== *{{Portal-inline|U.S. Roads}} *{{Portal-inline|New Jersey}}

==References== {{Reflist}}

==External links== {{Commons category|New Jersey Route 24}} {{AttachedKML|display=title,inline}} *[http://www.alpsroads.net/roads/nj/nj_24/ New Jersey Roads: Route 24] *[http://www.state.nj.us/transportation/refdata/traffic_orders/speed/rt24.shtm Speed Limits for Route 24]

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{{DEFAULTSORT:New Jersey Route 024}} Category:Transportation in Essex County, New Jersey Category:Transportation in Morris County, New Jersey Category:Transportation in Union County, New Jersey 024 Category:Limited-access roads in New Jersey Category:Freeways in the United States