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Wikipedia

Wisconsin Highway 78

January 21, 2023

State Trunk Highway 78 (often called Highway 78, STH-78 or WIS 78) is a state highway in the U.S. state of Wisconsin. It runs north–south in south central Wisconsin from Portage to the Illinois border near Gratiot.

State Trunk Highway 78

Route information
Maintained by WisDOT
Length92.83 mi[1] (149.40 km)
Major junctions
South end IL 78 in Gratiot
Major intersections
North end I-39 / I-90 / I-94 in Portage
Location
CountryUnited States
StateWisconsin
CountiesLafayette, Iowa, Green, Dane, Sauk, Columbia
Highway system

History

In the 1920s, Highway 78 was originally located on the Door County Peninsula on what is now Highway 57.

In 1963, the segment of STH-78 from the new I-90/I-94 freeway interchange south of Portage northerly to Highway 33 was improved to a four-lane divided facility. A year later, this four-lane divided highway (and the STH-78 designation with it) was extended northerly across the Wisconsin River then bypassing Portage to the west before merging into the existing two-lane route of US 51 north of the city. The entire four-lane divided portion of STH-78 from I-90/I-94 northerly to US-51 was shown as a full freeway with interchange beginning with the 1966 official state highway map, so it can be assumed the conversion to freeway occurred about this time (c.1965). In more recent decades, the short segment of STH-78 freeway was the only portion of the route from I-90/I-94 at Portage northerly past Wausau that was not signed as part of US-51, although signs along the route did indicate "TO US-51." Then in 1996, US-51 from Rothschild (south of Wausau) southerly to Portage was concurrently designated as Interstate 39 and to connect this new Interstate route with nearby I-90/I-94, the entire STH-78 freeway from US-51 north of Portage to I-90/I-94 was redesignated as part of I-39, with STH-78 losing approximately eight miles of length in the process.

Major intersections

CountyLocationmikmDestinationsNotes
LafayetteTown of Gratiot0.00.0 
  IL 78 south – Warren		Continuation into Illinois
Gratiot5.89.3 
  WIS 11 west – Shullsburg		Western end of WIS 11 concurrency
6.210.0 
  WIS 11 east – Monroe		Eastern end of WIS 11 concurrency
Argyle20.132.3 
  WIS 81 west – Darlington		Western end of WIS 81 concurrency
20.432.8 
  WIS 81 east – Monroe		Eastern end of WIS 81 concurrency
Iowa
 No major junctions
GreenTown of York32.552.3 
  WIS 39 west – Mineral Point		Western end of WIS 39 concurrency
32.752.6 
  WIS 39 east – New Glarus		Eastern end of WIS 39 concurrency
DaneMount Horeb45.773.5   US 18 / US 151 – Madison, Dodgeville
 
 
  
 
  Bus. US 18 east / Bus. US 151 east		US 151 exit 65; southern end of Business US 18 / Business US 151 concurrency
47.576.4 
 
  
 
   
  Bus. US 18 east / Bus. US 151 north / CTH-ID (Springdale Street) / WIS 92 south (8th Street)		Roundabout; northern end of Business US 18 / Business US 151 concurrency
Black Earth57.692.7 
  US 14 east – Madison		Southern end of US 14 concurrency
Mazomanie59.996.4 
  
  US 14 west / WIS 19 north – Spring Green		Northern end of US 14 concurrency; southern end of WIS 19 concurrency
Town of Mazomanie61.398.7 
  WIS 19 east – Waunakee		Northern end of WIS 19 concurrency
Town of Roxbury67.8109.1 
  US 12 east – Madison		Eastern end of US 12 concurrency
SaukSauk City68.4110.1 
  
  US 12 west / WIS 60 west (Phillips Boulevard)		Western end of US 12 concurrency; southern end of WIS 60 concurrency
Prairie du Sac70.0112.7 
  WIS 60 east (Prairie Street)		Northern end of WIS 60 concurrency
Town of Merrimac77.3124.4 
  WIS 113 north – Baraboo		Western end of WIS 113 concurrency
Merrimac79.9128.6 
   WIS 113 south – Merrimac Ferry		Eastern end of WIS 113 concurrency
ColumbiaTown of Caledonia92.83149.40 
    I-39 south / I-90 / I-94 – Wisconsin Dells, Madison
 
  I-39 north – Portage		Roadway continues as northbound I-39
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

  1. ^ Bessert, Chris. "Wisconsin Highways: Highways 70-79 (Highway 78)". Wisconsin Highways. Retrieved 2007-03-20.

External links

  •   Media related to Wisconsin Highway 78 at Wikimedia Commons

January 21, 2023
wisconsin, highway, this, article, relies, largely, entirely, single, source, relevant, discussion, found, talk, page, please, help, improve, this, article, introducing, citations, additional, sources, find, sources, news, newspapers, books, scholar, jstor, no. This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Wisconsin Highway 78 news newspapers books scholar JSTOR November 2021 State Trunk Highway 78 often called Highway 78 STH 78 or WIS 78 is a state highway in the U S state of Wisconsin It runs north south in south central Wisconsin from Portage to the Illinois border near Gratiot State Trunk Highway 78Route informationMaintained by WisDOTLength92 83 mi 1 149 40 km Major junctionsSouth endIL 78 in GratiotMajor intersectionsUS 18 US 151 in Mt Horeb US 14 in Black Earth US 14 WIS 19 in Mazomanie US 12 WIS 60 in Sauk CityNorth endI 39 I 90 I 94 in PortageLocationCountryUnited StatesStateWisconsinCountiesLafayette Iowa Green Dane Sauk ColumbiaHighway systemWisconsin State Trunk Highway SystemInterstate US State Scenic Rustic WIS 77 WIS 79 Contents 1 History 2 Major intersections 3 See also 4 References 5 External linksHistory EditIn the 1920s Highway 78 was originally located on the Door County Peninsula on what is now Highway 57 In 1963 the segment of STH 78 from the new I 90 I 94 freeway interchange south of Portage northerly to Highway 33 was improved to a four lane divided facility A year later this four lane divided highway and the STH 78 designation with it was extended northerly across the Wisconsin River then bypassing Portage to the west before merging into the existing two lane route of US 51 north of the city The entire four lane divided portion of STH 78 from I 90 I 94 northerly to US 51 was shown as a full freeway with interchange beginning with the 1966 official state highway map so it can be assumed the conversion to freeway occurred about this time c 1965 In more recent decades the short segment of STH 78 freeway was the only portion of the route from I 90 I 94 at Portage northerly past Wausau that was not signed as part of US 51 although signs along the route did indicate TO US 51 Then in 1996 US 51 from Rothschild south of Wausau southerly to Portage was concurrently designated as Interstate 39 and to connect this new Interstate route with nearby I 90 I 94 the entire STH 78 freeway from US 51 north of Portage to I 90 I 94 was redesignated as part of I 39 with STH 78 losing approximately eight miles of length in the process Major intersections EditCountyLocationmikmDestinationsNotesLafayetteTown of Gratiot0 00 0 IL 78 south WarrenContinuation into IllinoisGratiot5 89 3 WIS 11 west ShullsburgWestern end of WIS 11 concurrency6 210 0 WIS 11 east MonroeEastern end of WIS 11 concurrencyArgyle20 132 3 WIS 81 west DarlingtonWestern end of WIS 81 concurrency20 432 8 WIS 81 east MonroeEastern end of WIS 81 concurrencyIowa No major junctionsGreenTown of York32 552 3 WIS 39 west Mineral PointWestern end of WIS 39 concurrency32 752 6 WIS 39 east New GlarusEastern end of WIS 39 concurrencyDaneMount Horeb45 773 5 US 18 US 151 Madison Dodgeville Bus US 18 east Bus US 151 eastUS 151 exit 65 southern end of Business US 18 Business US 151 concurrency47 576 4 Bus US 18 east Bus US 151 north CTH ID Springdale Street WIS 92 south 8th Street Roundabout northern end of Business US 18 Business US 151 concurrencyBlack Earth57 692 7 US 14 east MadisonSouthern end of US 14 concurrencyMazomanie59 996 4 US 14 west WIS 19 north Spring GreenNorthern end of US 14 concurrency southern end of WIS 19 concurrencyTown of Mazomanie61 398 7 WIS 19 east WaunakeeNorthern end of WIS 19 concurrencyTown of Roxbury67 8109 1 US 12 east MadisonEastern end of US 12 concurrencySaukSauk City68 4110 1 US 12 west WIS 60 west Phillips Boulevard Western end of US 12 concurrency southern end of WIS 60 concurrencyPrairie du Sac70 0112 7 WIS 60 east Prairie Street Northern end of WIS 60 concurrencyTown of Merrimac77 3124 4 WIS 113 north BarabooWestern end of WIS 113 concurrencyMerrimac79 9128 6 WIS 113 south Merrimac FerryEastern end of WIS 113 concurrencyColumbiaTown of Caledonia92 83149 40 I 39 south I 90 I 94 Wisconsin Dells Madison I 39 north PortageRoadway continues as northbound I 391 000 mi 1 609 km 1 000 km 0 621 mi Concurrency terminusSee also Edit U S Roads portalReferences Edit Bessert Chris Wisconsin Highways Highways 70 79 Highway 78 Wisconsin Highways Retrieved 2007 03 20 External links Edit Media related to Wisconsin Highway 78 at Wikimedia Commons Retrieved from https en wikipedia org w index php title Wisconsin Highway 78 amp oldid 1055951722, wikipedia, wiki, book, books, library,

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