# Wisconsin Highway 16

State Trunk Highway 16 (often called Highway 16, STH-16 or WIS 16) is a Wisconsin state highway running from Pewaukee across the state to La Crosse. Much of its route in the state parallels the former mainline of the Milwaukee Road and current mainline of the Canadian Pacific Railway. Interstate 90 (I-90) or I-94 parallels Highway 16 for most of its length in the state. It serves local traffic in nearby cities including La Crosse, Tomah, Wisconsin Dells, Portage, Columbus, Watertown, Oconomowoc and Waukesha. The highway is mainly two-lane surface road or urban multi-lane expressway from La Crosse to Oconomowoc, and it is a freeway east of Oconomowoc.

## Route description

WIS 16 enters from Minnesota via a connection with Trunk Highway 16 on the Mississippi River, running concurrently with US Highway 14 (US 14) and US 61. After the two US Highways turn south to follow 3rd Street in downtown La Crosse, WIS 16 passes through La Crosse via Cass Street, 7th Street and La Crosse Street, crossing WIS 35 at La Crosse Street and Lang Drive. WIS 16 passes the northern edge of the University of Wisconsin–La Crosse campus, then turns north at Losey Boulevard.
The route then turns northeastward and junctions with I-90 six miles (9.7 km) northeast of the city. WIS 16 becomes a parallel route to I-90 and passes through West Salem where it connects with WIS 108. Wisconsin Highway 162 junctions just north of Bangor. WIS 16 crosses into Monroe County in Rockland. WIS 16 enters Sparta and junctions with WIS 21, WIS 27, and WIS 71. WIS 16 provides access to the Elroy-Sparta State Bike Trail.
The route then follows I-90 very closely as a frontage road to Tomah where it junctions with WIS 131 and joins US 12. The highways continue paralleling I-90 and I-94 southeast and pass through Oakdale and into Juneau County.
WIS 16 and US 12 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 slowly trek eastward and pass through Lyndon Station where Rocky Arbor State Park is located. The highways turn southeast again and crossing the Interstates and into Sauk County and Wisconsin Dells.
WIS 16 turns east off of US 12 onto WIS 13 north and passes through downtown Wisconsin Dells and into Columbia County. WIS 23 East also joins the highways at the same point. WIS 16 turns off from WIS 13 and WIS 23 on the east side of Wisconsin Dells and junctions with WIS 127 one mile (1.6 km) southeast of town. WIS 16 follows the Wisconsin River into Portage, meeting the other terminus of WIS 127 at the interchange with I-39.
The highway then passes through Portage, crossing WIS 33 and joining US 51 south for five miles (8.0 km). WIS 16 turns east off the US route and crosses WIS 22 in Wyocena and passes through Rio, Doylestown and Fall River. WIS 60 joins WIS 16 and together, they cross US 151, WIS 73 and junction with WIS 89 in Columbus as they enter Dodge County.
WIS 16 and WIS 60 turn east and pass through the unincorporated town of Astico and Lowell. WIS 16 leaves WIS 60 and joins WIS 26 at the junction of the two highways in Clyman. WIS 16 leaves WIS 26 and bypasses Watertown to the north and east and into Jefferson County. WIS 19 terminates on WIS 16 east of Watertown.
WIS 16 passes around Ixonia, becomes an expressway, and enters Waukesha County along a bypass of Oconomowoc. WIS 67 joins the expressway north of Oconomowoc. WIS 16 turns east onto the freeway segment and passes into Hartland, crossing WIS 83 there. WIS 190, also known as Capitol Drive, terminates at WIS 16 as the freeway turns south in Pewaukee. WIS 16 ends at a flyover interchange and its traffic merges onto I-94 east near Waukesha.

## History

In 1918, today's alignment of WIS 16 was WIS 21 from La Crosse to New Lisbon, along with WIS 12 east of Tomah. The route from Kilbourn (Wisconsin Dells) to Clyman was WIS 29. WIS 26 followed its current alignment to Watertown and the route from Watertown to Waukesha was WIS 19. WIS 29 was extended westward to La Crosse when WIS 21 was truncated back to north of New Lisbon. When the U.S. Routes debuted in 1926, WIS 29 was removed from the books as the entire alignment was replaced by US 16. WIS 19 was truncated back to its current terminus.
The current eastern terminus of WIS 16 was the site of the dedication ceremonies for the first completed segment of Interstate 94 in Wisconsin. The segment was opened on September 4, 1958. The first major interchange on the new Interstate was originally where US 16 turned north towards Pewaukee and WIS 30 continued west with I-94. The section of US 16 between the interchange outside of Waukesha and downtown Milwaukee was truncated at the interchange in the 1960s. US 16's designation was removed from the route and replaced with the current WIS 16 in 1978.
The original WIS 16 followed present day WIS 29 from Chippewa Falls to Green Bay via Wausau and Shawano. The route then followed a route that would become US 141 to Manitowoc where it ended at then WIS 17 (present day WIS 42).

### Oconomowoc bypass

The alignment of the eastern section of Highway 16 changed in late 2006 when the rest of the Oconomowoc bypass was opened to traffic. The four-lane, limited access divided highway routes Highway 16 around Lac La Belle on the west side of the city, meeting up with Highway 67 north of downtown. Eventually, the bypass will result in the removal of the state highway designation from Wisconsin Avenue through downtown Oconomowoc.
The signs for Highway 16 through downtown Oconomowoc have not yet been changed, due to the reconstruction of Wisconsin Avenue through the downtown area during the summer of 2008. As of November 2008, Oconomowoc officials and WisDOT had not yet set a firm date for the jurisdictional transfer, though it was likely that it will be done by the summer of 2009.
Currently, the limited-access highway around Oconomowoc is designated as Wisconsin Highway 16 on signage. Some signage, especially the signs located at the end of the freeway segment on West Highway 16 when a right turn must be made to continue on the bypass, say Bypass West Wisconsin Highway 16.

## Major intersections

| County | Location | mi | km | Exit | Destinations | Notes |
| La Crosse | La Crosse | 0.0 | 0.0 | | US 14 west / US 61 north / MN 16 west / I-90 Alt. west – La Crescent | Minnesota state line (La Crosse West Channel Bridge) |
| La Crosse | La Crosse | 1.0 | 1.6 | | Mississippi River Bridge over the Mississippi River | Mississippi River Bridge over the Mississippi River |
| La Crosse | La Crosse | 1.4 | 2.3 | | US 14 east / US 61 south / US 53 / Great River Road south (3rd Street) / I-90 Alt. – Viroqua, Cashton | One-way street; eastern end of US 14/US 61/GRR concurrency; national southern terminus of SB US 53; I-90 Alt. follows US 53 (3rd St.); eastern end of WB I-90 Alt. concurrency |
| La Crosse | La Crosse | 1.4 | 2.3 | | US 14 / US 61 / Great River Road (4th Street) | One-way street, inbound access only; western end of EB US 14 west/US 61/GRR north concurrency |
| La Crosse | La Crosse | 1.4 | 2.3 | | US 14 west / US 61 north / US 53 / Great River Road north (3rd Street north) / I-90 Alt. east – Onalaska, La Crescent | One-way streets, outbound access only; eastern end of EB US 14 west/US 61/GRR north concurrency; national southern terminus of NB US 53; I-90 Alt. follows US 53/GRR north (3rd St.) |
| La Crosse | La Crosse | 2.6 | 4.2 | | WIS 35 (Lang Drive/West Avenue) | |
| La Crosse | La Crosse | 5.7 | 9.2 | | CTH-B (Gillette Street) / Sunset Lane | Western end of CTH-B concurrency |
| La Crosse | La Crosse | 6.5 | 10.5 | | CTH-B / Coneco Road – Barre Mills, La Crosse River State Trail | Eastern end of CTH-B concurrency |
| La Crosse | La Crosse | 7.1 | 11.4 | | WIS 157 west / Alt. I-90 west – Onalaska, Airport | Western end of Alt. I-90 concurrency |
| La Crosse | Onalaska | 8.3 | 13.4 | | I-90 – Minnesota, Madison, Airport | Exit 5 along I-90 |
| La Crosse | West Salem | 14.2 | 22.9 | | CTH-C / Alt. I-90 (Leonard Street North) | Western end of CTH-C concurrency |
| La Crosse | Town of Hamilton | 14.6 | 23.5 | | WIS 108 north / CTH-C – Mindoro, Melrose | Eastern end of CTH-C concurrency |
| La Crosse | Town of Burns | 18.5 | 29.8 | | WIS 162 north – Melrose | Western end of WIS 162 concurrency |
| La Crosse | Town of Burns | 19.0 | 30.6 | | WIS 162 south / Alt. I-90 – Bangor | Eastern end of WIS 162 concurrency |
| Monroe | Sparta | 27.8 | 44.7 | | WIS 27 / WIS 71 west / Alt. I-90 (Black River Street) – Black River Falls, Cashton | Western end of WIS 21/WIS 71 concurrency |
| Monroe | Sparta | 28.3 | 45.5 | | WIS 21 east (Water Street) – Fort McCoy, Business District | Eastern end of WIS 21 concurrency |
| Monroe | Town of Angelo | 29.5 | 47.5 | | WIS 71 east – Norwalk | Eastern end of WIS 71 concurrency |
| Monroe | Town of Angelo | 30.6 | 49.2 | | I-90 – Tomah, Madison, La Crosse | Exit 28 along I-90 |
| Monroe | Tomah | 44.6 | 71.8 | | US 12 west / WIS 131 south / Alt. I-90 / Alt. I-94 west (Superior Avenue) – Black River Falls, Wilton, Amtrak Station | Western end of US 12/Alt. I-94 concurrency |
| Monroe | Tomah | 46.2 | 74.4 | | I-90 / Alt. I-94 – Madison, La Crosse | Exit 43 along I-90 |
| Monroe | Oakdale | 51.0 | 82.1 | | CTH-N / CTH-PP / Alt. I-90 / Alt. I-94 (Oakwood Street) | |
| Juneau | Camp Douglas | 57.0 | 91.7 | | CTH-C / CTH-H – Camp Douglas | Western end of CTH-C/CTH-H concurrency |
| Juneau | Camp Douglas | 57.3 | 92.2 | | CTH-H / Castle Street | Eastern end of CTH-H concurrency |
| Juneau | Camp Douglas | 57.5 | 92.5 | | CTH-C to I-90 / I-94 – Camp Williams, Volk Field | Eastern end of CTH–C concurrency |
| Juneau | New Lisbon | 63.3 | 101.9 | | WIS 80 north / CTH-A / Alt. I-90 / Alt. I-94 (Bridge Street) – Necedah | Western end of WIS 80 concurrency |
| Juneau | New Lisbon | 63.9 | 102.8 | | WIS 80 south (Monroe Street) – Elroy, Elroy-Sparta State Trail, The "400" State Trail | Eastern end of WIS 80 concurrency |
| Juneau | Mauston | 70.9 | 114.1 | | Division Street | Former WIS 58 south/WIS 82 west/CTH-G |
| Juneau | Mauston | 71.1 | 114.4 | | WIS 58 / WIS 82 / CTH-G (Union Street) to I-90 / I-94 | |
| Juneau | Lyndon Station | 82.2 | 132.3 | | CTH-HH to I-90 / I-94 | |
| Juneau | Town of Lyndon | 88.7 | 142.7 | | I-90 / I-94 – Tomah, Madison | Exit 85 along I-90 / I-94 |
| Sauk | Wisconsin Dells | 90.4 | 145.5 | | CTH-A | Western end of CTH-A concurrency |
| Sauk | Wisconsin Dells | 91.0 | 146.5 | | US 12 east / WIS 23 west / CTH-A / Alt. I-90 east / Alt. I-94 east – Lake Delton WIS 13 south / Alt. I-90 / Alt. I-94 – Madison | Eastern end of US 12/CTH-A/Alt. I-90/Alt. I-94 concurrency; western end of WIS 13/WIS 23 concurrency |
| Columbia | Wisconsin Dells | 92.4 | 148.7 | | WIS 13 north / WIS 23 east / Alt. I-39 north – Wis Rapids, Montello | Eastern end of WIS 13/WIS 23/Alt. I-39 concurrency |
| Columbia | Town of Newport | 94.0 | 151.3 | | WIS 127 east – Briggsville | |
| Columbia | Portage | 106.9 | 172.0 | | I-39 / WIS 127 west to I-90 / US 51 / WIS 78 – Stevens Point, Merrimac, Madison, Briggsville, Columbia Correctional Institution | I-39 exit 89; western end of Alt. I-90 concurrency |
| Columbia | Portage | 109.1 | 175.6 | | MacFarlane Road | Western end of WIS 16 east/US 51 south concurrency |
| Columbia | Portage | 109.3 | 175.9 | | WIS 33 (Cook Street) | |
| Columbia | Portage | 109.5 | 176.2 | | US 51 north (DeWitt Street) to WIS 33 east | Western end of WIS 16 west/US 51 north concurrency |
| Columbia | Town of Pacific | 113.7 | 183.0 | | US 51 south / Alt. I-39 south / Alt. I-90 east – Madison | Eastern end of US 51/Alt. I-39/Alt. I-90 concurrency |
| Columbia | Wyocena | 118.7 | 191.0 | | WIS 22 – Wyocena, Madison | Interchange |
| Columbia | Town of Fountain Prairie | 132.2 | 212.8 | | WIS 146 north – Cambria | |
| Columbia | Columbus | 136.3 | 219.4 | | WIS 60 west – Arlington, Lodi | Western end of WIS 60 concurrency |
| Columbia | Columbus | 136.6 | 219.8 | | US 151 – Beaver Dam, Sun Prairie, Madison | Interchange; US 151 exit 118 |
| Columbia | Columbus | 137.8 | 221.8 | | WIS 73 (Ludington Street) to WIS 89 | |
| Dodge | Town of Clyman | 152.2 | 244.9 | | WIS 26 north / WIS 60 east – Juneau, Hustisford | Interchange; eastern end of WIS 60 concurrency; western end of WIS 26 concurrency; WIS 26 exit 52 |
| Dodge | Town of Emmet | 160.0 | 257.5 | | WIS 26 south (Bus. WIS 16 east) / Bus. WIS 26 begins – Watertown | Interchange; eastern end of WIS 26 concurrency; western end of Bus. WIS 26 concurrency; WIS 26 exit 45 |
| Dodge | Town of Emmet | 160.8 | 258.8 | | Bus. WIS 26 south to CTH-L – Watertown | Interchange; eastern end of Bus. WIS 26 concurrency |
| Dodge | Town of Emmet | 162.0 | 260.7 | | To CTH-M | Interchange |
| Jefferson | Town of Watertown | 164.4 | 264.6 | | WIS 19 west / Bus. WIS 16 west – Watertown | Interchange; westbound exit and eastbound entrance |
| Jefferson | Ixonia | 172.2 | 277.1 | | Oconomowoc | Interchange |
| Waukesha | Town of Oconomowoc | 175.6 | 282.6 | | WIS 67 north – Oconomowoc, Mayville | Interchange; western end of WIS 67 concurrency |
| Waukesha | Town of Oconomowoc | 179.3 | 288.6 | | WIS 67 south / Alt. I-94 west to I-94 – Downtown Oconomowoc | Interchange; eastern end of WIS 67 concurrency; west end of Alt. I-94 overlap; west end of freeway |
| Waukesha | Okauchee Lake | 180.3 | 290.2 | 176 | CTH-P (Brown Street) / Gifford Road | |
| Waukesha | Okauchee Lake | 181.8 | 292.6 | 178 | CTH-P (Sawyer Road) | |
| Waukesha | Nashotah | 183.3 | 295.0 | 179 | CTH-C – Nashotah, Delafield | |
| Waukesha | Merton–Delafield town line | 185.4 | 298.4 | 181 | WIS 83 / Alt. I-94 – Delafield, Chenequa | |
| Waukesha | Hartland | 186.3 | 299.8 | 182 | CTH-E / CTH-KC – Hartland, Merton | Eastbound exit and westbound entrance |
| Waukesha | Hartland | 186.9 | 300.8 | 183 | CTH-KC / CTH-E – Hartland, Merton | Eastbound entrance and westbound exit |
| Waukesha | City of Pewaukee | 188.0 | 302.6 | 184 | CTH-JK / CTH-KE (Jungbluth Road / North Shore Drive) | |
| Waukesha | City of Pewaukee | 190.2 | 306.1 | 186 | CTH-KF (Ryan Street) | |
| Waukesha | Village of Pewaukee | 191.7 | 308.5 | 187 | WIS 190 (Capitol Drive) | |
| Waukesha | City of Pewaukee | 192.5 | 309.8 | 188 | CTH-JJ / CTH-T to Main Street west / I-94 | |
| Waukesha | City of Pewaukee | 193.2 | 310.9 | | I-94 east – Milwaukee | Eastern terminus; I-94 exit 293C; Eastbound exit and westbound entrance |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access |||||||

## Related routes
### Watertown business loop

Business State Trunk Highway 16 (Bus. WIS 16) follows a former alignment of US 16 through downtown Watertown. The route travels south along Bus. WIS 26 (North Church Street) and east along WIS 19 (Main Street). It was created as Business U.S. Highway 16 (Bus. US 16) in 1961, when US 16 was re-routed onto a bypass of Watertown.