U.S. Route 12 in Wisconsin

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US Highway 12 marker

US Highway 12
Iron Brigade Memorial Highway
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US 12 highlighted in red
Route information
Maintained by WisDOT
Length: 339.40 mi[1] (546.21 km)
Existed: 1926 – present
History: Designated in 1917 as WIS 12
Major junctions
West end: I-94 / US 12 in Hudson
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East end: US 12 in Genoa City
Location
Counties: St. Croix, Dunn, Chippewa, Eau Claire, Clark, Jackson, Monroe, Juneau, Sauk, Dane, Jefferson, Rock, Walworth
Highway system
WIS 11 WIS 13

U.S. Highway 12 (US 12 or Highway 12) in the U.S. state of Wisconsin runs east–west across the western to southeast portions of the state. It enters from Minnesota running concurrently with Interstate 94 (I-94) at Hudson, parallels the Interstate to Wisconsin Dells, and provides local access to cities such as Menomonie, Eau Claire, Black River Falls, Tomah and Mauston. It then provides an alternative route for traffic between northwestern Wisconsin and Madison and is the anchor route for the Beltline Highway around Madison. Finally, it serves southeastern Wisconsin, connecting Madison with Fort Atkinson, Whitewater, Elkhorn and Lake Geneva. The West Beltline Highway and the segment between Elkhorn and Genoa City are freeways, and the segment between Sauk City and Middleton is an expressway. The remainder of the road is a two-lane surface road or an urban multi-lane arterial. Between Hudson and west of Warrens, the road closely parallels the former main line of the Omaha Road, now operated by Union Pacific Railroad.

Route description

Hudson to Lake Delton

US 12 crosses the St. Croix River from Minnesota concurrent with I-94 into St. Croix County. Wisconsin Highway 35 (WIS 35) joins both routes upon their entry into Wisconsin and exits south three miles (5 km) east. US 12 leaves I-94 one mile (1.6 km) further east from the eastern WIS 35 exit, treks two miles (3 km) north and parallels the interstate. The highway crosses WIS 65 in Roberts and passes through Hammond over a fifteen-mile (24 km) segment to Baldwin, where it crosses US 63. US 12 passes through Woodville four miles (6 km) east of Baldwin and crosses WIS 128 in Wilson, two miles (3 km) west of the Dunn County line.[2] Roughly three miles into Dunn County, US 12 passes through Knapp, Wisconsin, then turns southeastward, connecting with WIS 79 six miles (10 km) further; it then joins WIS 25 (North Broadway Street) to the south in Menomonie. US 12 turns east onto WIS 29 (Main Street East) in downtown Menomonie, and the two routes follow Stout Road east out of the city.[3] The highways meet an interchange with I-94, then split one half of a mile east in Elk Mound at the junction with WIS 40. US 12 passes through Elk Mound and enters Eau Claire County[4]

US 12 merges with WIS 312 east (North Crossing) for two miles (3 km) before turning south onto Clairemont Avenue, bypassing downtown Eau Claire to the south and west. WIS 37 joins with US 12 on the southwest side of the city. Access to WIS 93 is provided via US 53. The interchange between US 12 and US 53 in Altoona is Wisconsin's first single-point urban interchange.[5] US 12 continues east out of the Eau Claire metropolitan area and passes through Fall Creek, where it turns southeastward to join WIS 27 south in Augusta. The two highways briefly join US 10 on the Jackson County line in Fairchild[6] US 12 and WIS 27 turn southward and pass through Humbird in Clark County and into Jackson County.[7]

US 12 and WIS 27 cross WIS 95 in Merrillan and WIS 54 in Black River Falls. US 12 and WIS 27 also split in Black River Falls. US 12 follows I-94 to the southeast past Millston and into Monroe County.[8] The highway crosses I-94 (with no access) south of Kirby and junctions with WIS 21 on the north side of Tomah at an interchange with the interstate. US 12 passes through Tomah and joins with WIS 16 on the south side at the junction with WIS 131 near Mill Bluff State Park. The highways continue paralleling I-90 and I-94 southeast and pass through Oakdale and into Juneau County.[8]

US 12 and WIS 16 pass through Camp Douglas and cross WIS 80 in New Lisbon. The highways then junction with WIS 58 and WIS 82 in Mauston as they continue southeast. The routes trek eastward and pass through Lyndon Station, where Rocky Arbor State Park is located. The highways turn southeast again and cross the Interstates into Sauk County and Wisconsin Dells.[9] WIS 16 turns east onto WIS 13 north as WIS 23 west turns south onto US 12. These highways follow the Wisconsin Dells Parkway south into the heart of the Wisconsin Dells tourism district,[10] — passing such attractions as Noah's Ark Waterpark,[11] the Wisconsin Ducks boat tours,[12] Kalahari Resort, Mt. Olympus Water & Theme Park, Wilderness Territory, and Tommy Bartlett's Thrill Show.[13] WIS 23 turns west onto Monroe Ave as US 12 turns southeast and crosses the Interstates.[14]

Lake Delton to Cambridge

US 12/US 18 eastbound at southern terminus of WIS 134 in Cambridge

At the I-90/94 interchange, US 12 becomes a freeway that bypasses Baraboo that goes just south of the Grasser Road overpass. The highway becomes an expressway just north of Lehman Road and remains so until a few miles north of Sauk City. WIS 60 briefly joins US 12 in Sauk City and WIS 78 crosses the Wisconsin River concurrently with US 12 into Dane County.[14] US 12 becomes an expressway again at the county line and continues southeast, crossing WIS 19 at Springfield Corners. Just northwest of Middleton, the route becomes a freeway as it enters the Madison area along the West Beltline Highway.[15]

US 12 merges with US 14 at University Avenue. The freeway continues south and turns eastward at the interchange with CTH M and CTH S (Mineral Point Road). US 18 and US 151 join the beltline off Verona Road in southwestern Madison. The four routes travel concurrently for two miles (3 km), passing through interchanges with Todd Drive and Fish Hatchery Road before US 14 leaves south towards Janesville and US 151 north into downtown Madison via Park Street. The four-way concurrency was crossed by a railroad track at the surface until 2007. The crossing was isolated using Jersey barriers until that time.[16] The freeway also had several ramps, which contained driveways that accessed businesses.[17] US 12 and US 18 continue east into Monona and cross the Upper Mud Lake channel. The highways meet US 51 at Stoughton Road, then interchange with I-39 and I-90 on the southeast side of Madison.[18] US 12 and US 18 continue as an expressway east of the interstates, junctioning with WIS 73 in Deerfield and splitting, with US 12 turning southeast into Jefferson County in Cambridge.[15]

Cambridge to Genoa City

After leaving Cambridge, US 12 passes through Oakland and crosses WIS 26, WIS 89, and WIS 106 in Fort Atkinson. WIS 89 joins US 12 as the route turns southward to approach Whitewater, bypassing the city to the south into Walworth County. The route briefly enters Rock County before crossing into Walworth County[19] WIS 89 turns off US 12 at its junction with WIS 59. WIS 59 East follows US 12 briefly before turning north into the city. US 12 passes through La Grange and turns south at the junction with WIS 20 to follow WIS 67 south. US 12 turns southeast off WIS 67 onto a freeway northeast of Elkhorn. The highway crosses over WIS 11 with no access (although access is provided via nearby Interstate 43), then interchanges with I-43. Access for Lake Geneva is provided at WIS 120 and WIS 50 as US 12 passes the city to the east. The highway turns south into Genoa City, where the freeway ends and US 12 follows the crossroad into Illinois.

History

The entire route was originally signed as WIS 12 in 1917 prior to the creation of the U.S. highway system in 1926. Aside from changes resulting from the construction of freeways and US 12 being aligned on them, some differences exist between the original route and today's alignment. WIS 12 followed CTH E, a more southerly alignment, between Menomonie and Eau Claire. From Black River Falls, WIS 12 continued south to Shamrock and turned east to follow CTH O to Millston. WIS 12 ran southerly from Tomah along WIS 131 to CTH A and turned east onto the county road to pass through Hustler and Clifton to reach New Lisbon.[1][20]

The state originally planned to upgrade all of US 12 from Genoa City to Madison to freeway in anticipation of Illinois facilitating a toll road south of the state line. However, after Wisconsin started upgrading between Elkhorn and Genoa City, it was realized that the upgrades on the Illinois side had been shelved, due to community and environmental opposition.

The route between Cambridge and Whitewater was upgraded to a straighter and flatter path for safety. A bypass of Whitewater was added in 2005, although the bypass is currently only two lanes. Upgrades to US 12 between Middleton and Sauk City were completed in 2005, but local opposition prevented most of the remaining route north of that point to Lake Delton from being constructed.[1]

In Wisconsin, the highway was designated as the Iron Brigade Memorial Highway in 1993 to honor the Civil War Union Army unit; it also has this designation in Michigan, Indiana and Illinois.[21][22][23][24]

Major intersections

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County Location mi km Exit[25] Destinations Notes
Washington Lakeland 0.00 0.00 I-94 west / US 12 west – St. Paul Continuation into Minnesota
St. Croix River Minnesota–Wisconsin state line
St. Croix Hudson 0.3 0.48 1 WIS 35 north – Hudson Western end of WIS 35 overlap
1.9 3.1 2 CTH-F (Carmichael Road)
3.2 5.1 3 WIS 35 south – River Falls Eastern end of WIS 35 overlap
3.9 6.3 4 I-94 east – Madison Eastern end of I-94 overlap; western end of I-94 Alt.
Roberts 11.6 18.7 WIS 65 south – Roberts Western end of WIS 65 overlap
12.6 20.3 WIS 65 north – New Richmond Eastern end of WIS 65 overlap
Baldwin 21.5 34.6 US 63 north – Turtle Lake Northern end of US 63 overlap
22.1 35.6 US 63 south – Ellsworth Southern end of US 63 overlap
Town of Springfield 31.0 49.9 WIS 128 – Glenwood City, Spring Valley
Dunn Town of Menomonie 42.7 68.7 WIS 79 north – Boyceville
Menomonie 45.7 73.5 WIS 25 north – Barron Northern end of WIS 25 overlap
47.2 76.0 WIS 25 south (Broadway Street) – Durand Southern end of WIS 25 overlap
47.5 76.4 WIS 29 west (Main Street) – Spring Valley Western end of WIS 29 overlap
Town of Elk Mound 59.4 95.6 60 I-94 – St. Paul, Madison I-94 exit 52
60.3 97.0 61
WIS 29 east / WIS 40 north / Alt. I-94 east – Colfax, Chippewa Falls
Eastern end of WIS 29 and I-94 Alt. overlap
Chippewa
No major junctions
Eau Claire Eau Claire 68.0 109.4 WIS 312 west (North Crossing) Western end of WIS 312 overlap
70.6 113.6 WIS 312 east (North Crossing) / CTH-T Eastern end of WIS 312 overlap
74.3 119.6 WIS 37 south – Mondovi
76.9 123.8 Bus. US 53 (Hastings Way)
Altoona 77.2 124.2 US 53 – Superior, La Crosse, Madison US 53 exit 86
Augusta 96.5 155.3 WIS 27 north – Cadott Northern end of WIS 27 overlap
Jackson Town of Cleveland 107.2 172.5 US 10 west – Osseo Western end of US 10 overlap
Clark Town of Mentor 109.7 176.5 US 10 east – Neillsville Eastern end of US 10 overlap
Jackson Merrillan 120.9 194.6
WIS 95 / Alt. I-94 west – Neillsville, Alma Center
Western end of I-94 Alt overlap
Black River Falls 131.2 211.1 I-94 – Madison, St. Paul I-94 exit 115
132.3 212.9 WIS 54 west – Melrose Western end of WIS 54 overlap
132.5 213.2 WIS 54 east – Wisconsin Rapids Eastern end of WIS 54 overlap
Town of Brockway 133.0 214.0 WIS 27 south – Sparta Southern end of WIS 27 overlap
Monroe Tomah 159.8 257.2 I-94 – Madison, St. Paul I-94 exit 143; no entrance from westbound I-94
160.0 257.5 WIS 21 – Necedah, Sparta Provides access from westbound I-94
163.2 262.6
WIS 16 west / WIS 131 south / Alt. I-90 west – Wilton, Sparta
Western end of WIS 16 and I-90 Alt overlap
164.8 265.2 I-90 – Madison, La Crosse I-90 exit 43
Juneau New Lisbon 181.9 292.7 WIS 80 north – Necedah Northern end of WIS 80 overlap
182.4 293.5 WIS 80 south – Elroy Southern end of WIS 80 overlap
Mauston 189.7 305.3 WIS 58 / WIS 82 (Union Street)
Town of Lyndon 207.3 333.6 I-90 / I-94 – Tomah, La Crosse, Madison I-90 exit 85
Sauk Wisconsin Dells 209.5 337.2 WIS 13 / WIS 16 east / WIS 23 east – Wisconsin Dells Eastern end of WIS 16 overlap; northern end of WIS 23 overlap
Lake Delton 212.2 341.5 WIS 23 (Munroe Avenue) – Reedsburg Southern end of WIS 23 overlap
214.0 344.4 211 I-90 / I-94 – Madison, Milwaukee, Tomah, La Crosse, Eau Claire Signed as exits 211A (west) and 211B (east); I-90 exit 92
Town of Delton 214.8 345.7 212 Bus. US 12 / CTH-BD (Fern Dell Road)
216.7 348.7 214 N. Reedsburg Road Exit for Ho-Chunk Casino Wisconsin Dells
218.0 350.8 215 WIS 33 west – Reedsburg Western end of WIS 33 overlap
West Baraboo 220.8 355.3 218
WIS 33 east / WIS 136 / Alt. I-90 east / Alt. I-94 east – Baraboo, Rock Springs
Eastern end of WIS 33, I-90 Alt, and I-94 Alt overlap
Baraboo 221.8 357.0 219 Bus. US 12 / CTH-W (South Boulevard)
Town of Prairie du Sac Bus. US 12 east / CTH-Z (Prairie Road) – Prairie du Sac
235.4 378.8 WIS 60 west – Spring Green Western end of WIS 60 overlap
Sauk City 237.1 381.6 WIS 60 east / WIS 78 north / Bus. US 12 west – Prairie du Sac Eastern end of WIS 60 overlap; northern end of WIS 78 overlap
Dane Town of Roxbury 237.6 382.4 WIS 78 south – Black Earth, Mount Horeb Southern end of WIS 78 overlap
237.9 382.9 WIS 188 north – Lodi
Town of Springfield 246.5 396.7 WIS 19 west – Mazomanie Western end of WIS 19 overlap
248.0 399.1 WIS 19 east – Waunakee Eastern end of WIS 19 overlap
Middleton 252.8 406.8 249 Parmenter Street
253.8 408.5 250 CTH-M (Century Avenue) / Invalid type: road
254.8 410.1 251A US 14 west / CTH-MS / Invalid type: road – Spring Green, La Crosse, Cross Plains Western end of US 14 overlap
254.8 410.1 251B Parmenter Street Westbound exit only
Madison 255.3 410.9 252 Greenway Boulevard
256.4 412.6 253 Old Sauk Road
257.4 414.2 254 CTH-M / CTH-S (Mineral Point Road) – Verona, Mount Horeb
258.6 416.2 255 Gammon Road
260.2 418.8 257 Whitney Way
261.4 420.7 258 US 18 west / US 151 south (Verona Road) / Invalid type: road – Dodgeville, Fitchburg Western end of US 18 and US 151 overlaps.
261.9 421.5 258A Seminole Highway Westbound exit and eastbound entrance only; exit for UW Arboretum
263.0 423.3 259 Todd Drive
263.8 424.5 260 CTH-D (Fish Hatchery Road) – Belleville Eastbound exits signed 260A (south) and 260B (north)
264.5 425.7 261 US 14 east / US 151 north (Park St) – Oregon Eastern end of US 14 and US 151 overlaps
265.3 427.0 262 CTH-MM (Rimrock Road)
265.8 427.8 263 John Nolen Drive
Monona 266.6 429.1 264 CTH-BW (West Broadway)
268.1 431.5 265 Monona Drive
Madison 269 433 266 US 51 (Stoughton Road) / Alt. I-39 north / Alt. I-90 west / Alt. I-94 west – McFarland Western end of I-39 Alt, I-90 Alt, and I-94 Alt overlaps
270.5 435.3 267 I-39 / I-90 to I-94 – Janesville, Chicago, Wisconsin Dells, Milwaukee Signed as exits 267A (east/south) and 267B (west/north); I-90 exit 142
Town of Cottage Grove 274.5 441.8 272 CTH-N – Cottage Grove, Stoughton
Town of Deerfield 281.1 452.4 WIS 73 / Alt. I-39 south / Alt. I-90 east – Deerfield, Edgerton Interchange; eastern end of I-39 Alt and I-90 Alt overlaps
Cambridge 284.2 457.4 WIS 134 north
284.3 457.5 US 18 east / Alt. I-94 east – Jefferson Eastern end of US 18 and I-94 Alt overlap
Jefferson Fort Atkinson 293.9 473.0 WIS 26 – Watertown, Milton
295.3 475.2 Bus. WIS 26 south (Robert Street) Southern end of WIS 26 Business overlap
295.6 475.7 Bus. WIS 26 north (3rd Street) / WIS 89 north (Main Street) – Lake Mills Northern end of WIS 26 Business overlap, Northern end of WIS 89 overlap
295.7 475.9 WIS 106 (Riverside Drive) – Palmyra, Edgerton
Rock
No major junctions
Walworth Whitewater Bus. US 12 east (Tri-County Road) – Whitewater
305.4 491.5 WIS 59 west / WIS 89 south – Milton, Delavan Southern end of WIS 89 overlap; western end of WIS 59 overlap
307.8 495.4 Bus. US 12 west / WIS 59 east / CTH-P – Palmyra Eastern end of WIS 59 overlap
Town of La Grange 317.6 511.1 WIS 20 east / WIS 67 north – East Troy, Eagle Northern end of WIS 67 overlap
Elkhorn 325.0 523.0 WIS 67 south – Elkhorn, Williams Bay Southern end of WIS 67 overlap
327–
327.4
526–
526.9
321 I-43 (Bray Road) / CTH-NN – Beloit, Milwaukee, Elkhorn Unnumbered exits via collector-distributor lane
Lake Geneva 334.4 538.2 328 WIS 120 north – Burlington, Lake Geneva Northern end of WIS 120 overlap
335.5 539.9 330 WIS 50 / WIS 120 – Lake Geneva, Paddock Lake, Kenosha Southern end of WIS 120 overlap; eastbound exits signed 330A (west) and 330B (east)
Town of Bloomfield 340.6 548.1 335 Pell Lake Road
Genoa City 344.7 554.7 US 12 east – Chicago Continuation into Illinois
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related routes

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See also

References

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External links

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  • Media related to Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons
U.S. Route 12
Previous state:
Minnesota
Wisconsin Next state:
Illinois