{{short description|Highway in Wisconsin}} {{Use American English|date=May 2025}} {{Use mdy dates|date=January 2025}} {{Infobox road |state=WI |type=WI |route=19 |map={{maplink-road|from=Wisconsin Highway 19.map}} |map_custom=yes |map_notes=WIS 19 highlighted in red |length_mi=59.37 |length_ref= <ref name="WH1">{{cite web | last = Bessert | first = Chris | title =Wisconsin Highways: Highways 10-19 (Highway 19) | work =Wisconsin Highways | url =http://www.wisconsinhighways.org/listings/WiscHwys10-19.html#STH-019 | accessdate = 2007-03-20}}{{self-published inline|certain=yes|date=April 2021}}</ref> |length_round= |direction_a=West |direction_b=East |terminus_a={{jct|state=WI|US|14|WI|78}} in [[Mazomanie, Wisconsin|Mazomanie]] |junction={{jct|state=WI|US|12}} in [[Springfield Corners, Wisconsin|Springfield Corners]]<br />{{jct|state=WI|I|39|I|90|I|94}} in [[Madison, Wisconsin|Madison]]<br />{{jct|state=WI|US|51}} in [[Madison, Wisconsin|Madison]]<br />{{jct|state=WI|US|151}} in [[Sun Prairie, Wisconsin|Sun Prairie]] |terminus_b={{jct|state=WI|WI|16}} in [[Watertown, Wisconsin|Watertown]] |counties=[[Dane County, Wisconsin|Dane]], [[Dodge County, Wisconsin|Dodge]], [[Jefferson County, Wisconsin|Jefferson]] |previous_type=WI 1919 |previous_route=18 |next_type=WI |next_route=20
}}
'''State Trunk Highway 19''' (often called '''Highway 19''', '''STH-19''' or '''WIS 19''') is a [[state highway (US)|state highway]] in the [[U.S. state]] of [[Wisconsin]]. It provides a more direct route from [[U.S. Route 14 in Wisconsin|U.S. Highway 14]] near [[Mazomanie, Wisconsin|Mazomanie]] east to [[Wisconsin Highway 16|Highway 16]] at [[Watertown (WI)|Watertown]], passing around the north side of [[Madison, Wisconsin|Madison]]. WIS 19 is a local connector route that links the communities of [[Waunakee, Wisconsin|Waunakee]], [[Sun Prairie, Wisconsin|Sun Prairie]] and [[Watertown, Wisconsin|Watertown]]. The highway follows two lane surface road for the entire length with the exception of urban multilane arterials.
==Route description== WIS 19 begins at Mazomanie at the junction of [[U.S. Route 14 in Wisconsin|US 14]] and [[Wisconsin Highway 78|WIS 78]]. It follows WIS 78 north for about a mile before turning east. It passes through the small communities of [[Marxville, Wisconsin|Marxville]] and [[Springfield Corners, Wisconsin|Springfield Corners]], and turns east to follow [[U.S. Route 12 in Wisconsin|US 12]] through Springfield Corners, a [[concurrency (road)|concurrency]] of about {{convert|1|mi|km|spell=in}}. WIS 19 enters Waunakee about {{convert|5|mi|km|spell=in}} east of US 12. [[Wisconsin Highway 113|WIS 113]] joins the highway from the north for about {{convert|3|mi|km|spell=in}}, then turns south off WIS 19. WIS 19 reaches its junction with [[Interstate 39|I-39]], [[Interstate 90|I-90]] and [[Interstate 94|I-94]] on the south side of [[Windsor (CDP), Wisconsin|Windsor]] and its junction with [[U.S. Route 51 in Wisconsin|US 51]] {{convert|1|mi|km|spell=in}} east of the Interstates. In Sun Prairie, WIS 19 crosses [[U.S. Route 151 in Wisconsin|US 151]] and passes through the city. The highway then continues east, junctioning with [[Wisconsin Highway 73|WIS 73]] in [[Marshall, Dane County, Wisconsin|Marshall]], just {{convert|2|mi|km|spell=in}} west of the [[Jefferson County, Wisconsin|Jefferson County]] line<ref name="wisdot_dane">{{cite map |url=http://www.dot.wisconsin.gov/travel/maps/docs/counties/dane.pdf |format=pdf |title=Dane Co |publisher=Wisconsin Department of Transportation |accessdate=2008-01-01 |archive-url=https://web.archive.org/web/20030316004127/http://www.dot.wisconsin.gov/travel/maps/docs/counties/dane.pdf |archive-date=16 March 2003 |url-status=dead}}</ref> WIS 19 briefly passes through Jefferson County while passing through [[Waterloo, Wisconsin|Waterloo]] before turning north to [[Dodge County, Wisconsin|Dodge County]]. WIS 19 intersects [[Wisconsin Highway 89|WIS 89]] while in Waterloo.<ref name="wisdot_jefferson">{{cite map |url=http://www.dot.wisconsin.gov/travel/maps/docs/counties/jefferson.pdf |format=pdf |title=Jefferson Co |publisher=Wisconsin Department of Transportation |accessdate=2008-01-01 |archive-url=https://web.archive.org/web/20031010140948/http://www.dot.wisconsin.gov/travel/maps/docs/counties/jefferson.pdf |archive-date=10 October 2003 |url-status=dead}}</ref> About {{convert|3|mi|km|0|spell=in}} of WIS is in rural Dodge County. The route passes back into Jefferson County to pass through [[Hubbleton, Wisconsin|Hubbleton]], then it straddles the county line into Watertown.<ref name="wisdot_dodge">{{cite map |url=http://www.dot.wisconsin.gov/travel/maps/docs/counties/dodge.pdf |format=pdf |title=Dodge Co |publisher=Wisconsin Department of Transportation |accessdate=2008-01-01 |archive-url=https://web.archive.org/web/20030316084742/http://www.dot.wisconsin.gov/travel/maps/docs/counties/dodge.pdf |archive-date=16 March 2003 |url-status=dead}}</ref> In Watertown, WIS 19 turns southeastward back into Jefferson County, and crosses the [[Wisconsin Highway 26|WIS 26]] bypass on the western fringes of the city. WIS 19 merges with and ends at [[Wisconsin Highway 16|WIS 16]].<ref name="wisdot_jefferson" />
==History== Prior to 1947, WIS 19 followed the current route of [[U.S. Route 18 in Wisconsin|US 18]] between [[Bridgeport, Wisconsin|Bridgeport]] and Madison. The route then passed through downtown Madison and followed then [[Wisconsin Highway 31|WIS 31]] (part of the current [[U.S. Route 151 in Wisconsin|US 151]]) to Sun Prairie. East of Sun Prairie the route followed its present-day alignment to Watertown. The route then followed present-day WIS 16 to [[Waukesha, Wisconsin|Waukesha]] and east from there along present-day [[Wisconsin Highway 59|WIS 59]] into [[Milwaukee, Wisconsin|Milwaukee]].<ref name="1926n">{{cite web|url=http://www.broermapsonline.org/members/NorthAmerica/UnitedStates/Midwest/Wisconsin/unitedstates1926ra_036.html|title=Rand McNally Auto Road Atlas|year=1926|publisher=[[Rand McNally]]|accessdate=2008-01-02|archive-date=March 31, 2008|archive-url=https://web.archive.org/web/20080331200625/http://www.broermapsonline.org/members/NorthAmerica/UnitedStates/Midwest/Wisconsin/unitedstates1926ra_036.html|url-status=dead}}</ref> When the [[Numbered highways in the United States|U.S. Highway system]] was implemented, WIS 19's western terminus was relocated to Madison. The portion between Madison and Sun Prairie remained despite the debut of US 151 as did the eastern portion that became concurrent with [[U.S. Route 16 in Wisconsin|US 16]]. In 1947, the eastern terminus was moved to Watertown, the section along US 151 was removed, and the portion between Mazomanie and Sun Prairie was implemented.<ref name="WH1" />
The Part of WIS 19 roughly from the Interstates west to WIS 113 had at one time been on the corridor of a planned beltine route around the north side of Madison. The current status of the parkway is uncertain.<ref name="WH2">[https://web.archive.org/web/20020328095132/http://www.co.dane.wi.us/execcommittees/northmendota/index.htm North Mendota Parkway Advisory Committee] accessed 13 August 2006</ref>
==Major intersections== {{jcttop}} {{WIint |county=Dane |cspan=12 |location=Mazomanie |lspan=2 |mile=0.00 |type=concur |road={{jct|state=WI|US|14|WI|78|dir2=South|city1=Mazomanie|city2=Black Earth|city3=Mount Horeb}} |notes=Western end of WIS 78 concurrency }} {{WIint |mile=1.39 |type=concur |road={{jct|state=WI|WI|78|dir1=North|city1=Sauk City}} |notes=Eastern end of WIS 78 concurrency }} {{WIint |location=Springfield Corners |mile=11.01 |road={{jct|state=WI|US|12|city1=Sauk City|city2=Madison}} |notes= }} {{WIint |location=Waunakee |lspan=2 |mile=17.42 |type=concur |road={{jct|state=WI|WI|113|dir1=North|city1=Lodi}} |notes=Western end of WIS 113 concurrency }} {{WIint |mile=19.95 |type=concur |road={{jct|state=WI|WI|113|dir1=South|city1=Madison}} |notes=Eastern end of WIS 113 concurrency }} {{WIint |location=DeForest |lspan=2 |mile=23.46 |type= |road={{jct|state=WI|I|39|I|90|I|94|location1=[[Wisconsin Dells, Wisconsin|Wis Dells]]|city2=Janesville|location3=[[Milwaukee]]}} |notes= }} {{WIint |mile=24.47 |type= |road={{jct|state=WI|US|51|city1=Portage|city2=Madison}} |notes= }} {{WIint |location=Sun Prairie |lspan=2 |mile=29.20 |road={{jct|state=WI|US|151|city1=Columbus|city2=Madison}} |notes= }} {{WIint |mile=30.25 |road={{jct|state=WI|CTH|N}} |notes= }} {{WIint |location=Marshall |ctdab=Dane |lspan=3 |mile=36.13 |road={{jct|state=WI|CTH|TT}} |notes= }} {{WIint |mile=38.43 |road={{jct|state=WI|CTH|T}} |notes=Terminus of CTH-T }} {{WIint |mile=38.55 |road={{jct|state=WI|WI|73|city1=Columbus|city2=Deerfield}} |notes= }} {{WIint |county=Jefferson |cspan=2 |location=Waterloo |lspan=3 |mile=42.87 |road={{jct|state=WI|WI|89|city1=Columbus|city2=Lake Mills}} |notes= }} {{WIint |mile=42.97 |road={{jct|state=WI|CTH|O}} |notes=Terminus of CTH-O }} {{WIint |county=Dodge |cspan=2 |mile=44.28 |road={{jct|state=WI|CTH|I}} |notes=Terminus of CTH-I }} {{WIint |location=Hubbleton |mile=49.30 |road={{jct|state=WI|CTH|G}} |notes=Terminus of CTH-G }} {{WIint |county=Jefferson |cspan=2 |location=Watertown |lspan=2 |mile=50.33 |road={{jct|state=WI|CTH|QQ}} |notes= }} {{WIint |mile=59.37 |road={{jct|state=WI|WI|16|WI-Bus|16|dir1=east|city1=Oconomowoc|dab2=Watertown}} |notes= }} {{jctbtm|keys=concur}}
==See also== *{{portal-inline|U.S. Roads}}
==References== {{reflist}}
==External links== {{Attached KML|display=title,inline}} *{{commons category-inline}}
[[Category:State highways in Wisconsin|019]] [[Category:Transportation in Dane County, Wisconsin]] [[Category:Transportation in Jefferson County, Wisconsin]] [[Category:Transportation in Dodge County, Wisconsin]] [[Category:U.S. Route 18]]