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U.S. Route 151: Map


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U.S. Route 151 is a U.S. Highway that runs through the states of Iowamarker and Wisconsinmarker. The northern terminus for U.S. 151 is at Manitowoc, Wisconsinmarker, and its southern terminus is at a junction with Interstate 80 in Iowa County, Iowamarker. The route, from south to north follows a northeasterly path through Iowa and Wisconsin.

Approximately seven miles (11 km) south of Dubuque, Iowamarker, U.S. 151 joins with U.S. Highway 61. The two highways share a route from there to Dickeyville, Wisconsinmarker. Three miles (5 km) south of Dubuque, U.S. 61/151 join with U.S. Highway 52, and share a route with U.S. 52 until the White Street exit in Dubuque.

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

Route description

Major cities


U.S. Route 151 starts at an intersection with Interstate 80, in an isolated part of Iowa near both Williamsburgmarker and Conroymarker. It then continues through the area around the Amana Colonies. Once meeting up with US 30 and US 218, the route cuts around the city of Cedar Rapidsmarker, while the business route 151 goes through the city. The route splits from the other roads and continues toward Dubuquemarker as an expressway. This 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 Airportmarker. The combined road then heads into the state of Wisconsinmarker where it continues with the US 151 name.

Dubuque to Madison

US 151, concurrent with US 61, crosses the Mississippi River into Wisconsin via the Dubuque-Wisconsin Bridgemarker from Dubuque, Iowa and passes through a cut in the river ridge before turning northward to the western terminus of WIS 11 after 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 CTH HHH and CTH H as it bypasses Kielermarker to the northwest. At Dickeyville, US 61, WIS 35 and the Great River Road route turn north off of US 151 into town. US 151 passes Dickeville to the east and descends into a valley cut northeast of the village, paralleling the Little Platte River and Blockhouse creak within the valley for a stretch before climbing back onto the ridgetop on the other side of the valley. US 151 then approaches Plattevillemarker and enters a section of limited access at CTH D (US 151 Business). The limited access stretch ends after three interchanges and to the east. The last of the interchanges being WIS 126/CTH G with access to Belmontmarker. 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 Pointmarker and another two while passing the city.

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 and US 151 head eastbound past that interchange.

The section of expressway past Dodgeville psses through rolling hills populated with farmland mixed with small woodlands. The highway passes Ridgewaymarker and Barneveldmarker. Access to Ridgeway is by surface intersections with a short "business route" on CTH HHH. Access to Barneveld is at CTH ID on a lone interchange on the southwest side of the village. CTH ID Parallels US 18/US 151 for the entire stretch between Barneveld and Mount Horebmarker. 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 Ave) begins a section of freeway that bypasses Veronamarker to the south. This section provides access to four interchanges including the two endpoints of CTH MV. The freeway ends and the route enters an urban multilane highway known as Verona Road as it passes through Fitchburgmarker and into Madison. Verona Road passes through a commercial sector at CTH PD and past a residential area on the Southwest Side of Madison. US 18 and US 151 merge east on the West Beltline Highway — joining US 12 and U.S. Route 14 in Wisconsin.

Madison Metropolitan Area

The four U.S. Routes run concurrently for about to Park Street. At this interchange, US 14 turns south off the Beltine 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 Ave for about 1500 feet, 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 Centermarker 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 out of the city. The left terminus of WIS 30 meets US 151 about northeast of the South Blair Street turn. and US 51 crosses US 151 further northeast.

Madison to Fond du Lac

US 45 exit ramp in Fond du Lac
At a cloverleaf interchange with I-39, I-90 and I-94, a section of freeway begins and continues along US 151 northeast through commercial zones into residential areas. The route bypasses Sun Prairiemarker 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 village via a partial beltline to the north and east, completely clearing the village. WIS 16 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 northeast 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 Waupunmarker, bypasses the city to the east. 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 US 41 and WIS 23. WisDOT currently is studying upgrades to two sections of US 151. The first study would preserve the Fond du Lac Bypass from US 41 to WIS 23, with the ultimate goal being freeway conversion. The second study is examining freeway upgrades to the route from WI 73 in Columbus to WIS 49 in Waupun.

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 concurrent with WIS 32 and WIS 57 in Chiltonmarker. 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 S.S. Badger carferry port.


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

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

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

Exit List


County Location # Destinations Notes
Amana Colonies US 6 overlap begins north and ends south
US 6 overlap ends north and begins south
Bentonmarker Walfordmarker
Linnmarker Fairfaxmarker
US 30 / US 218 overlap begins north and ends south.
Cedar Rapidsmarker 250 Edgewood Road
252A 6th Street SW – Hawkeye Downs
252B US 218 overlap ends north and begins south.
253 Kirkwood Boulevard, Bowling Street
Bertrammarker US 30 overlap ends north and begins south. IA 13 overlap begins north and ends south.
Cedar Rapidsmarker Lincoln Highway
IA 13 overlap ends north and begins south
Jonesmarker Violamarker
Fairviewmarker 49
54 Wapsipinicon State Park
Monticellomarker 63
65 Monticello Regional Airportmarker
Cascademarker 74
Dubuquemarker 75
Dubuquemarker US 61 overlap begins north and ends south
US 52 overlap begins north and ends south
Grandview Avenue
US 52 overlap ends north and begins south
Kerper Boulevard – Greyhound Park
enters Wisconsinmarker.


County Location # Destinations Notes
enters from Iowamarker.
Grantmarker Sandy Hook 1 , East Dubuquemarker follow North
2 Badger Rd, Eagle Point Rd Southbound entrance; Northbound exit only
3 Badger Rd, Eagle Point Rd Southbound exit and entrance; Northbound entrance only
Kielermarker 5 Southbound entrance; Northbound exit only
6 Southbound exit; Northbound entrance only
Dickeyvillemarker 8  
Plattevillemarker 18
19 Northbound
Lafayettemarker Belmontmarker 26 Rewey displayed on Northbound signs only
Iowamarker Mineral Pointmarker 37  
40 Northbound
North follow North
Dodgevillemarker 44  
47 East follow North
Barneveldmarker 58  
Danemarker Mount Horebmarker 65
use Exit 65
Veronamarker 75  – Dairy Ridge Rd, Mt Vernonmarker  
76  – Epic Lane, W Verona Ave  
Madisonmarker 258 West end of US 12/US 14 overlap.
259 West Beltline Frontage Road  
260 Fish Hatchery Road  
261 End of US 12/US 14/US 18 overlap.
97A  – Chicagomarker, Milwaukeemarker  
98A American Pkwy High Crossing Blvd use Exit 98A
98B Nelson Rd  
Sun Prairiemarker 100  – Reiner Rd  
101  – Main St
not signed Southbound
102  – Windsor St Waunakeemarker, Marshall use Exit 102
Marshall not signed Southbound
103  – Bristol St
not signed Northbound
East Bristolmarker 108 East Bristol not signed Southbound
111 East Bristol not signed Northbound
Columbiamarker Columbusmarker 115
Dodgemarker 120
not signed Northbound
Beaver Dammarker 129
not signed Southbound
134 Industrial Dr Northbound exit, Southbound entrance only
Buckhorn Corner 136  
Waupunmarker 142 Northbound exit; Southbound entrance
144 Juneau not signed Northbound
Southbound: Watertownmarker use exit 144
147 Southbound exit; Northbound entrance
North follow North
Fond Du Lac 148
Fond Du Lacmarker 160
End of mixed expressway section – continues as 2 Lane Highway

See also


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