U.S. Route 151

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U.S. Highway 151 marker

U.S. Highway 151
US 151 highlighted in red
Route information
Auxiliary route of US 51
Length337 mi [1] (542 km)
Major junctions
South end I-80 near Williamsburg, Iowa
North end US 10 in Manitowoc, Wis.
Highway system
Iowa 150IA Iowa 152
WIS 150WI WIS 152

U.S. Highway 151 (US 151) is a United States Numbered Highway that runs through the states of Iowa and Wisconsin. The southern terminus for US 151 is at a junction with Interstate 80 (I-80) in Iowa County, Iowa, and its northern terminus is at Manitowoc, Wisconsin. The route, from south to north follows a northeasterly path through the two states.

Approximately seven miles (11 km) south of Dubuque, Iowa, US 151 joins with US 61. The two highways share a route from there to Dickeyville, Wisconsin. Three miles (4.8 km) south of Dubuque, US 61/US 151 joins with US 52 and shares a route with US 52 until the White Street exit in Dubuque.

In Wisconsin, US 61/US 151 joins with Wisconsin Highway 35 (WIS 35) about one mile (1.6 km) north of the Iowa–Wisconsin border. At Dickeyville, US 151 splits off and heads northeast to Platteville. US 61/WIS 35 continues north. US 151 later joins with US 18 near Dodgeville. The two highways share a route all the way to Madison.

Route description


US 151 starts at an intersection with I-80 in an isolated part of Iowa near both Williamsburg and Conroy. It then continues through the area around the Amana Colonies, [2] where it has a brief overlap with US 6. Once meeting up with US 30 and US 218, the route cuts around the city of Cedar Rapids, while Business US 151 goes through the city. The route splits from the other roads and continues toward Dubuque as an expressway. This 65-mile (105 km) stretch crosses many major rivers including both the Wapsipinicon and the Maquoketa. The road eventually goes into the Driftless Area where it meets up with US 61 around the Dubuque Regional Airport. [3] The combined road then heads into the state of Wisconsin. [4]

Dubuque to Madison

US 61/US 151 crosses the Mississippi River into Wisconsin via the Dubuque-Wisconsin Bridge from Dubuque, Iowa and passes through a cut in the river ridge before turning northward to the western terminus of WIS 11 after one mile (1.6 km) of due east travel. WIS 35 and the Great River Road join the route at that interchange, heading north. The highway at this point is limited access highway with two lanes in each direction. The northward trek of the route passes through mixed residential and farmland as it crosses Badger Road and merges with Eagle Point Road. Eagle Point road merges with US 151 from the left side of the road. The limited access portion ends at this interchange. Another pair of half diamond interchanges connect the highway with County Trunk Highway HHH (CTH-HHH) and CTH-H as it bypasses Kieler to the northwest. At Dickeyville, US 61, WIS 35 and the Great River Road route exit north off of US 151 into town. US 151 passes Dickeyville to the east and descends into a valley cut northeast of the village, paralleling the Little Platte River and Blockhouse Creek within the valley for a one-mile (1.6 km) stretch before climbing back onto the ridge top on the other side of the valley. [5] US 151 then approaches Platteville and enters a section of limited access at CTH-D (US 151 Business). The limited access stretch ends after three interchanges six miles (9.7 km) to the east. The last of the interchanges is WIS 126/CTH-G with access to Belmont. The route turns northeastward from this point, crosses the Cottage Inn Branch and begins the first of several descents into valleys, two of which are prior to passing Mineral Point [6] and another two while passing the city. [7]

The highway is limited access between the two interchanges that provide access to Mineral Point: CTH-O and WIS 23. WIS 23 joins US 151 heading northbound at that point until the first interchange at Dodgeville. This interchange begins another short stretch of freeway to the point where US 18 joins the route. US 18/US 151 heads eastbound past that interchange. [7]

The section of expressway past Dodgeville passes through rolling hills populated with farmland mixed with small woodlands. The highway passes Ridgeway and Barneveld. Access to Ridgeway is by an interchange and a surface intersection with a short business route on CTH-HHH. The interchange was previously an intersection; however, it was announced in 2011 that the first intersection would be closed, and an exit would be constructed, due to the numerous fatal accidents that happen at the intersection each year. The new interchange on the western end of town opened in late 2018. Access to Barneveld is at an interchange with CTH-ID and an at-grade intersection with CTH-K. CTH-ID parallels US 18/US 151 for the entire stretch between Barneveld and Mount Horeb. A section of freeway begins at WIS 78 and ends at the other end of CTH-ID as the highway bypasses Mount Horeb just to the south of the city's passing residential subdivisions. A mix of grade separation and level intersections cross the winding highway as it continues eastward until the interchange with CTH-MV (Verona Avenue) begins a section of freeway that bypasses Verona to the south. This section provides access to four interchanges including the two endpoints of CTH-MV. The freeway continues into Fitchburg and provides access to two interchanges at CTH-PD (McKee Road) and Williamsburg Way. The freeway then ends. The road continues as an urban multilane highway known as Verona Road as it enters Madison. Verona Road passes through a residential and commercial area on the Southwest Side of Madison. US 18 and US 151 merge east on the West Beltline Highway—joining US 12 and US 14. [7]

Madison metropolitan area

The four US Highways run concurrently for about three miles (4.8 km) to Park Street. [8] At this interchange, US 14 turns south off the beltline towards Oregon, and US 151 turns north and into central Madison; US 151 passes Monona Bay to the west along South Park Street. US 151 turns northeast onto West Washington Avenue for about 1,500 feet (460 m) then follows Proudfit Street and North Shore Drive—paralleling the Monona Bay shore—and turns north onto John Nolen Drive. The street passes under the Monona Terrace Convention Center as it passes to the south and east of downtown Madison. US 151 turns northwest onto South Blair Street for three city blocks to East Washington Avenue—where it turns northeast and follows East Washington Avenue, bisecting the Madison Isthmus, and leading out of the city to the east. The western terminus of WIS 30 meets US 151 about three miles (4.8 km) northeast of the South Blair Street turn. [9] and US 51 crosses US 151 one mile (1.6 km) further northeast. [7]

Madison to Fond du Lac

US 45 exit ramp in Fond du Lac

At a cloverleaf interchange with I-39/ I-90/ I-94, a section of freeway begins and continues along US 151 northeast through commercial zones into residential areas. The route bypasses Sun Prairie on the west and north sides through the city's residential zones. After Sun Prairie, US 151 passes through farmland, heading toward Columbus. The highway bypasses the city via a partial beltline to the north and east, completely clearing the city. WIS 16 and WIS 60 crosses under US 151 about midway along the Columbus bypass. US 151 becomes an expressway with level intersections after the interchange with WIS 73 at the end of the bypass portion. The route becomes a freeway at Beaver Dam, bypassing the city to the southeast. The route follows the edge of residential zones of the city before passing an industrial area at the northeastern end of the bypass. Within this freeway section exists a level railroad crossing near CTH-E (East Burnett Street). US 151 crosses at-grade intersections after the interchange with CTH-A northeast of Beaver Dam and encounters one more freeway section at Waupun, bypassing the city to the east. The Waupun bypass also includes a level railroad crossing halfway between the CTH-M and WIS 26 interchanges. The four-lane expressway of US 151 continues east, bypassing Fond du Lac to the south and east. This expressway provides a mixture of at-grade intersections and grade-separated interchanges at I-41/ US& 41 and WIS 23. [7] WisDOT currently is studying upgrades to two sections of US 151. The first study would preserve the Fond du Lac Bypass from I-41 to WIS 23, with the ultimate goal being freeway conversion. [10] The second study is examining freeway upgrades to the route from WIS 73 in Columbus to WIS 49 in Waupun. [11]

Fond du Lac to Manitowoc

The northeast terminus at US 10 in Manitowoc

The multi-lane section of US 151 ends after turning north away from Fond du Lac and the route follows the east shore of Lake Winnebago for about half the length of the shoreline. US 151 then turns east at the intersection with WIS 55 and follows two-lane surface roads and briefly running concurrently with WIS 32 and WIS 57 in Chilton. The roadway passes through farmland throughout this section until it crosses over I-43 and enters Manitowoc. The route follows surface streets into Manitowoc and terminates in the downtown area at US 10 just blocks prior to the SS Badger car ferry dock. [7]


US 151, approximately eight miles (13 km) south of Dubuque, Iowa; a scene from the movie Field of Dreams was filmed on this particular segment of the highway.

US 151 was one of the original U.S. Highways from 1926. At the time, it only ran from Fond du Lac, Wisconsin, to Madison. Originally, the highway ended at Western Avenue and Main Street in Madison. In 1934, the highway was extended southwest to Cedar Rapids, Iowa, incorporating the full length of former U.S. Highway 118 ( Dodgeville to Dickeyville) and part of former U.S. Highway 161 ( Dubuque to Cedar Rapids; US 161 from Cedar Rapids south to Keokuk became US 218). At the time, the southern end of the route was at Williams Blvd SW and 16th Ave SW, what was then US 30 and US 218. In the 1940s, the highway was extended northeast to Manitowoc.


The Dubuque-Wisconsin Bridge, Dubuque, Iowa. The bridge crosses the Mississippi River between Dubuque and Grant County, Wisconsin. The bridge is part of the US 61 / US 151 route.

In 1969, the Eagle Point Bridge, which connected US 151 and US 61 with Wisconsin, was closed, and those highways were rerouted over the Julien Dubuque Bridge with US 20 from Dubuque to East Dubuque, Illinois. The route then followed Illinois Route 35 and WIS 35 north to what is now the current highway. In 1982, the Dubuque-Wisconsin Bridge opened, the old Eagle Point Bridge was demolished, and US 151 and US 61 were rerouted onto the new bridge. This is the only instance of US 61 and US 151 entering Illinois.


In 1981, the southern terminus of the highway was extended once again when the US 30 bypass was built. The southern terminus was at the US 151 and 30 interchange. By 1986, the main US 151 was rerouted onto state highway 13 and US 30 to bypass Cedar Rapids. The previous route through Cedar Rapids was renamed US 151 Business (though the official state designation for it is Iowa 922). Finally, in 1989, US 151 was extended to its current southern end at exit 225 along I-80. This extension followed the old route of Iowa 149. As a result, US 151 became the main route through the Amana Colonies.

Exit list

StateCountyLocation mi [12] kmExitDestinationsNotes
Iowa Iowa Iowa Township0.0000.000 I-80 / CR W21 south – Davenport, Des Moines
5.6459.085 US 6 west – MarengoSouthern end of US 6 overlap
Amana Colonies7.58712.210 US 6 east – CoralvilleNorthern end of US 6 overlap
10.50016.898 Iowa 220 west – High Amana, Middle Amana, East Amana
No major junctions
Linn Cedar Rapids24.47439.387248
US 30 west / US 218 north / US 151 Business north (Williams Boulevard SW) – Cedar Rapids, Tama
Southern end of US 30 and US 218 overlaps
25.84541.593250Edgewood Road SW
28.02945.108252A6th Street SW
I-380 / US 218 south / Iowa 27 – Cedar Rapids, Iowa City
Northern end of US 218 overlap; signed as exits 252B (southbound) and 252C (northbound)
29.03946.734253Bowling Street SW, Kirkwood Boulevard SW
30.03648.338254 CR W6E (C Street SW) – Ely
Bertram Township34.95756.258259 US 30 east / Iowa 13 begins – Mount VernonNorthern end of US 30 overlap; southern end of Iowa 13 overlap
Marion41.57966.915 Iowa 100 west / CR E45 – Marion
US 151 Business south / Iowa 13 north – Marion, Central City
Northern end of Iowa 13 overlap
Jones Fairview54.20687.23649 Iowa 1 south / CR E34 – Martelle, Mount Vernon
Anamosa59.27295.38954 Iowa 64 east / CR E28 – Anamosa
US 151 Business / CR X44 – Monticello
US 151 Business only signed northbound
70.203112.98165 Iowa 38 – Monticello, Hopkinton
Lovell Township72.124116.072
US 151 Business – Monticello
US 151 Business only signed southbound
Richland Township79.278127.586
US 151 Business – Cascade
US 151 Business only signed northbound
Dubuque Cascade80.250129.15075 Iowa 136 – Cascade, Dyersville
US 151 Business – Cascade, Farley
US 151 Business only signed southbound
Table Mound Township99.545160.202 US 61 south – MaquoketaSouthern end of US 61 overlap
Dubuque102.639165.181 US 52 south – BellevueSouthern end of US 52 overlap
103.794167.040Grandview Avenue
104.343167.924 To US 20 ( Locust Street)Northbound exit and southbound entrance only
105.275169.424 To US 20 (via Locust Street)
105.543169.855White Street, Port of DubuqueNorthbound exit and southbound entrance only
105.961170.528 US 52 north / Iowa 3 west (9th Street, 11th Street)Northern end of US 52 overlap
106.713171.738Kerper BoulevardNorthbound exit and southbound entrance only
106.925172.079Greyhound Park RoadNorthbound entrance and southbound exit only
Mississippi River107.661
Dubuque–Wisconsin Bridge; Iowa–Wisconsin state line
Wisconsin Grant Town of Jamestown1 WIS 11 west / WIS 35 south / Great River Road south – Janesville, East DubuqueSouthern end of WIS 35 overlap
2Badger Road, Eagle Point RoadNorthbound exit and southbound entrance only
3Badger Road, Eagle Point RoadSouthbound exit and northbound entrance only; Old U.S. 151
Kieler5 CTH-HHH to CTH-H – Kieler, Louisburg
CTH-H to CTH-HHH – Kieler, Louisburg
Dickeyville8 US 61 north / WIS 35 north / Great River Road north / CTH-HH – Dickeyville, LancasterNorthern end of US 61 and WIS 35 overlaps
Town of Platteville18
Bus. US 151 / CTH-D – Platteville
US 151 Business only signed northbound; exit for UW-Platteville
Platteville19 WIS 80 / WIS 81 – Platteville, Darlington, Lancaster
Bus. US 151 / CTH-XX – Platteville
US 151 Business only signed southbound
Lafayette Belmont26 WIS 126 south / CTH-G – Belmont, Rewey
Iowa Town of Mineral Point37
Bus. US 151 / CTH-O – Mineral Point
US 151 Business only signed northbound
Mineral Point40
Bus. US 151 south to WIS 23 / WIS 39 – Mineral Point, Darlington, Hollandale
US 151 Business only signed southbound; Southern end of WIS 23 overlap
Town of Dodgeville44 WIS 23 north – Dodgeville, Spring Green, Wisconsin DellsNorthern end of WIS 23 overlap
47 US 18 west – Dodgeville, Prairie du ChienSouthern end of US 18 overlap
Town of Ridgeway52 CTH-BB south (Ridgevue Road) / CTH-HHH – Ridgeway
Barneveld58 CTH-ID west – Blue Mounds, Arena
Dane Town of Blue Mounds65
Bus. US 18 / Bus. US 151 / WIS 78 – Mount Horeb, Blanchardville
US 18 Business / US 151 Business only signed northbound
Mount Horeb69
Bus. US 18 / Bus. US 151 / CTH-ID – Mount Horeb
US 18 Business / US 151 Business only signed southbound
Town of Springdale70 CTH-PD to CTH-P – Cross Plains
Town of Verona75 CTH-G (Dairy Ridge Road) – Mount Vernon
Bus. US 18 / Bus. US 151 / CTH-MV (W. Verona Avenue) / Epic Lane
US 18 Business / US 151 Business only signed northbound
77 WIS 69 – Belleville, Monroe
79 CTH-PB to CTH-M – Paoli, Oregon
Town of Verona81
Bus. US 18 (E. Verona Avenue) / Bus. US 151 / CTH-MV – Verona
Southbound exit and northbound entrance only
Fitchburg83A CTH-PD (McKee Road)
83BWilliamsburg Way
Madison258 US 12 west / US 14 west – Baraboo, La CrosseSouthern end of US 12 / US 14 overlap
258ASeminole HighwaySouthbound exit and northbound entrance only
259Todd Drive
260 CTH-D (Fish Hatchery Road) – FitchburgSigned as exits 260A (southbound) and 260B (northbound)
261 US 12 east / US 14 east / US 18 eastNorthern end of US 12 / US 14 / US 18 overlaps
WIS 113 north (First Street)
WIS 30
US 51 (Stoughton Road)
97 I-39 / I-90 / I-94 – Milwaukee, Chicago, Wisconsin DellsSigned as exits 97A (southbound) and 97B (northbound)
98ANelson RoadExits combined southbound
98BAmerican Parkway
Sun Prairie100 CTH-C (Reiner Road)
Bus. US 151 (Main Street)
US 151 Business only signed northbound
102 WIS 19 (Windsor Street) – Waunakee, Marshall
Bus. US 151 (Bristol Street) / CTH-N
US 151 Business only signed southbound
Town of Bristol108 CTH-VV – East Bristol
Town of York111 CTH-V – East Bristol
Columbia Town of Columbus115
Bus. US 151 / WIS 73 – Columbus, Marshall
US 151 Business only signed northbound
Columbus118 WIS 16 / WIS 60 – Columbus, Portage, Fall River
Dodge Town of Elba120
Bus. US 151 / WIS 73 – Columbus, Randolph
US 151 Business only signed southbound
Beaver Dam129
Bus. US 151 / CTH-D – Beaver Dam
Left exit; US 151 Business Now complete as of 2013.
130 CTH-G – Lowell, Beaver Dam
132 WIS 33 – Beaver Dam, Horicon
134Industrial DriveNorthbound exit and southbound entrance only
Bus. US 151 / CTH-B – Beaver Dam, Burnett
136 CTH-A – Fox Lake
Town of Chester142
Bus. US 151 / CTH-M – Waupun
Northbound exit and southbound entrance only
144 WIS 26 – Waupun, Juneau, Watertown
DodgeFond du Lac
county line
Waupun146 WIS 49 – Waupun, Brownsville
Fond du Lac Town of Waupun147
Bus. US 151 / WIS 26 south – Waupun
Southern end of WIS 26 overlap; southbound exit and northbound entrance only
148 WIS 26 north – Rosendale, OshkoshNorthern end of WIS 26 overlap
Town of Fond du Lac160 CTH-D (Military Road) – Oakfield
Fond du Lac161 CTH-VVV (Hickory Street)County VVV unsigned on exit ramps or exit signs
WIS 175 south (Main Street)
I-41 / US 41 / US 45 north – Oshkosh, Green Bay, MilwaukeeSouthern end of US 45 overlap
Town of Fond du Lac164 US 45 south (Fond du Lac Avenue) / CTH-V – EdenNorthern end of US 45 overlap
Fond du Lac168 WIS 23 (Johnson Street) – Sheboygan
Calumet Town of Stockbridge WIS 55 north – Sherwood, Kaukauna
Chilton WIS 32 north / WIS 57 north (Madison Street) – Green BaySouthern end of WIS 32 / WIS 57 overlap
WIS 32 south / WIS 57 south (E. Chestnut Street) – MilwaukeeNorthern end of WIS 32 / WIS 57 overlap
Manitowoc Town of Eaton WIS 67 south – Kiel
Manitowoc WIS 42 south – Howards Grove, OsmanSouthern end of WIS 42 overlap
I-43 / WIS 42 north / LMCT – Green Bay, MilwaukeeNorthern end of WIS 42 overlap
US 10 (10th Street, 8th Street) / LMCT
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related routes


  1. ^ American Association of State Highway and Transportation Officials (December 2009). "U.S. Route Number Database". American Association of State Highway and Transportation Officials. Retrieved May 28, 2014.
  2. ^ Amana Colonies Convention & Visitors Bureau (2008). "How to Find Us". Amana Colonies Convention & Visitors Bureau. Archived from the original on May 14, 2008. Retrieved October 21, 2008.
  3. ^ Dubuque Regional Airport (2000). "Frequently Asked Questions". Dubuque Regional Airport. Archived from the original on November 21, 2008. Retrieved October 21, 2008.
  4. ^ Wisconsin Department of Transportation Office of Public Affairs (August 16, 2010). "Exit Numbers on US 151". Wisconsin Department of Transportation. Archived from the original on March 2, 2015. Retrieved June 9, 2015.
  5. ^ Google (January 26, 2009). "River Valley northeast of Dickeyville, WI" (Map). Google Maps. Google. Retrieved January 26, 2009.
  6. ^ Google (January 26, 2009). "Mineral Point, WI Valleys section 1" (Map). Google Maps. Google. Retrieved January 26, 2009.
  7. ^ a b c d e f Google (January 26, 2009). "Mineral Point, WI Valleys section 2" (Map). Google Maps. Google. Retrieved January 26, 2009.
  8. ^ Google (January 26, 2009). "Madison Beltline" (Map). Google Maps. Google. Retrieved January 26, 2009.
  9. ^ Google (February 9, 2009). "Madison: US 30 Terminus from Downtown" (Map). Google Maps. Google. Retrieved February 9, 2009.
  10. ^ Wisconsin Department of Transportation Northeast Region (October 15, 2008). "US 151 Fond du Lac Bypass Corridor Preservation Study". Wisconsin Department of Transportation. Archived from the original on March 18, 2009. Retrieved March 1, 2009.
  11. ^ Wisconsin Department of Transportation Southwest Region (May 27, 2014). "US 151 Freeway Conversion Study Columbus–Waupun, Dodge County". Wisconsin Department of Transportation. Archived from the original on July 22, 2014. Retrieved June 9, 2015.
  12. ^ 2009 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2009. Retrieved November 26, 2010.

External links

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