The St. Croix River is a tributary of the Mississippi River, approximately 169 miles (272 km) long, in the U.S. states of Wisconsin and Minnesota. The lower 125 miles (201 km) of the river form the border between Wisconsin and Minnesota. The river is a National Scenic Riverway under the protection of the National Park Service. A hydroelectric plant at the Saint Croix Falls Dam supplies power to the Minneapolis–St. Paul metropolitan area.
Interstate 535 (I-535) is a 2.78-mile-long (4.47 km) auxiliary Interstate Highway spur route of I-35 in the US states of Minnesota and Wisconsin. It is paired with U.S. Highway 53 (US 53) along its entire route. The Interstate was part of the original 1956 Interstate Highway System and was completed in 1971. Since then, weight limits have been added to the Blatnik Bridge that carries the highway over Saint Louis Bay between Superior, Wisconsin, and Duluth, Minnesota.
U.S. Highway 8 (US 8) is a United States Numbered Highway that runs primarily east–west for 280 miles (451 km), mostly within the state of Wisconsin. It connects Interstate 35 (I-35) in Forest Lake, Minnesota, to US 2 at Norway in the Upper Peninsula of Michigan near the border with Wisconsin. Except for the short freeway segment near Forest Lake, and sections near the St. Croix River bridge and Rhinelander, Wisconsin, it is mostly an undivided surface road. As a state highway in the three states, US 8 is maintained by the Minnesota, Wisconsin and Michigan departments of transportation.
U.S. Route 53, or U.S. Highway 53 (U.S. 53), is a north–south U.S. highway that runs for 404 miles (650 km) from La Crosse, Wisconsin to International Falls, Minnesota. It is the primary north–south route in northwestern Wisconsin, serving as a vital link between I-94 at Eau Claire, Wisconsin and the Twin Ports of Superior, Wisconsin, and Duluth, Minnesota. The entire route from Eau Claire to the city limits of Superior is a four lane divided highway. The highway's northern terminus is at the Fort Frances–International Falls International Bridge in International Falls, Minnesota, at the Canada–US border. Its southern terminus is in La Crosse, Wisconsin, at U.S. Highway 14.
Minnesota State Highway 36 (MN 36) is a 21.718-mile-long (34.952 km) highway in Minnesota, which runs from its interchange with Interstate 35W in Roseville and continues east to its eastern terminus at the Wisconsin state line, where it becomes Wisconsin Highway 64 upon crossing the St. Croix River at the St. Croix Crossing bridge. A portion of Highway 36 is a major freeway in suburban Minneapolis – Saint Paul.
Minnesota State Highway 23 (MN 23) is a state highway that stretches from southwestern to northeastern Minnesota. At 343.723 miles (553.169 km) in length, it is the second longest state route in Minnesota, after MN 1.
The Third Avenue Bridge is a landmark structure of the city of Minneapolis, Minnesota, United States, originally known as the St. Anthony Falls Bridge. It carries road traffic across the Mississippi River and upper fringes of Saint Anthony Falls. The multi-arched bridge meets with Third Avenue in downtown Minneapolis at its south end, but curves as it crosses the river, and connects with Central Avenue on its north end. The shallow "S" curve in the bridge was built to avoid fractures in the limestone bedrock that supports the bridge piers. The road is also designated Minnesota State Highway 65. Construction began in 1914, and it opened four years later in 1918. The bridge, which uses Melan arches of an open spandrel design, has been modified since that time. The 2,223-foot crossing was designed by city engineer Frederick W. Cappelen, who also created plans for other similar bridges in Minneapolis such as the Franklin Avenue Bridge. It cost US$862,254.00 at the time of construction.
The Stillwater Bridge is a vertical-lift bridge crossing the St. Croix River between Stillwater, Minnesota, and Houlton, Wisconsin. It formerly connected Minnesota State Highway 36 and Wisconsin Highway 64. Around 18,000 vehicles crossed the bridge daily. The new St. Croix Crossing bridge crossing the St. Croix river valley to the south of Stillwater replaced its purpose, having opened to highway traffic on August 2, 2017, leaving the Stillwater Lift Bridge to be preserved and to be converted to bicycle/pedestrian use.
Minnesota State Highway 610 (MN 610) is an east–west freeway in the Twin Cities region of Minnesota. The freeway connects Interstate 94 (I-94), County Road 81, and CR 130 in northern Hennepin County to U.S. Highway 10 (US 10) in southern Anoka County. MN 610 crosses the Mississippi River on the Richard P. Braun Bridge between suburban Brooklyn Park and Coon Rapids. The highway is 12.3 miles (19.8 km) long.
An extradosed bridge employs a structure that combines the main elements of both a prestressed box girder bridge and a cable-stayed bridge. The name comes from the word extrados, the exterior or upper curve of an arch, and refers to how the "stay cables" on an extradosed bridge are not considered as such in the design, but are instead treated as external prestressing tendons deviating upward from the deck. In this concept, they remain part of the main bridge superstructure.
The I-90 Mississippi River Bridge, or the Dresbach Bridge, consists of a pair of parallel bridges that traverse the Mississippi River, connecting the La Crosse, Wisconsin area to Dresbach in rural Winona County, Minnesota. The current bridge was fully opened to traffic in October 2016, replacing a previous 1967 plate girder bridge. It is part of the Interstate 90 route. There is another automobile crossing a few miles south of this bridge; the Mississippi River Bridge, a combination of two bridges, and the La Crosse West Channel Bridge, connecting La Crescent, Minnesota and La Crosse, Wisconsin.
Minnesota State Highway 95 is a 126.892-mile-long (204.213 km) highway in east-central Minnesota, which runs from its intersection with State Highway 23 near St. Cloud and continues east and south to its southern terminus at its intersection with U.S. Highways 61 / 10 (co-signed) at Cottage Grove.
The Saint Croix National Scenic Riverway is a federally protected system of riverways located in eastern Minnesota and northwestern Wisconsin. It protects 252 miles (406 km) of river, including the St. Croix River, and the Namekagon River, as well as adjacent land along the rivers. The St. Croix National Scenic Riverway is one of the original eight National Wild and Scenic Rivers, largely as a result of legislation by senators Walter Mondale of Minnesota and Gaylord Nelson of Wisconsin. The largest scenic riverway east of the Mississippi River, it lies within parts of eight counties in Wisconsin: Bayfield, Burnett, Douglas, Pierce, Polk, St. Croix, Sawyer, and Washburn; and three in Minnesota: Chisago, Pine, and Washington.
Main Channel Bridge (Winona) consists of a pair of bridges, the original cantilever bridge, and a concrete box girder bridge completed in 2016, that span the main channel of the Mississippi River in the United States between Winona, Minnesota, and Latsch Island. Another bridge, the North Channel Bridge, connects the island to rural Buffalo County, Wisconsin. The bridge carries Minnesota State Highway 43, which continues as Wisconsin Highway 54 at the Minnesota/Wisconsin state line on the nearby North Channel Bridge; in Winona, it connects to Winona Street.
The I-35W Mississippi River bridge was an eight-lane, steel truss arch bridge that carried Interstate 35W across the Mississippi River one-half mile downstream from the Saint Anthony Falls in Minneapolis, Minnesota, United States. The bridge opened in 1967 and was Minnesota's third busiest, carrying 140,000 vehicles daily. It experienced a catastrophic failure during the evening rush hour on August 1, 2007, killing 13 people and injuring 145. The NTSB cited a design flaw as the likely cause of the collapse, noting that an excessively thin gusset plate ripped along a line of rivets, and that additional weight on the bridge at the time contributed to the catastrophic failure.
State Trunk Highway 64 (WIS 64) is a 275.65-mile-long (443.62 km) highway in Wisconsin, which runs from the St. Croix Crossing bridge as a continuation of Minnesota State Highway 36 (MN 36) near Stillwater, Minnesota, and continues east to its eastern terminus in downtown Marinette, where it terminates at US Highway 41 (US 41) at an intersection on the corner of Marinette and Hall Avenue. Along the way, Highway 64 runs east–west through eight counties across northern Wisconsin.
The St. Croix Boom Site is a historic and scenic wayside on the St. Croix River in Stillwater Township, Minnesota, United States. It commemorates the location of a critical log boom where, from 1856 to 1914, timber from upriver was sorted and stored before being dispatched to sawmills downstream. The site was developed as a roadside park along Minnesota State Highway 95 in the 1930s. In 1966 it was designated a National Historic Landmark for its national significance in the theme of industry. It was nominated for being the earliest, most important, and longest serving of the log storage and handling operations that supported Minnesota's major logging industry. Virtually no traces remain of the site's original buildings and structures.
Trunk Highway 243 and State Trunk Highway 243 are two short state highways in the U.S. states of Minnesota and Wisconsin. They connect MN 95 in Franconia Township, Minnesota with WIS 35 in Osceola, Wisconsin. The two highways meet at the state line on a bridge across St. Croix River. The combined highway is 1.53 miles (2.46 km) in length, 1.23 miles (1.98 km) in Minnesota and 0.30 miles (0.48 km) in Wisconsin. The two highways were designated in 1949. The bridge across the St. Croix River dates to 1953.
Interstate 94 (I-94) in the US state of Minnesota runs 259 miles (417 km) east–west through the central portion of the state. The highway connects the cities of Moorhead, Fergus Falls, Alexandria, St. Cloud, Minneapolis, and Saint Paul. Authorized in 1956, it was mostly constructed in the 1960s. For its whole length, it runs concurrently with either US Highway 52 (US 52) or US 12.
The I-35W Saint Anthony Falls Bridge crosses the Mississippi River one-half mile downstream from the Saint Anthony Falls in Minneapolis, Minnesota in the U.S., carrying north–south traffic on Interstate Highway 35W. The ten-lane bridge replaced the I-35W Mississippi River bridge, which collapsed on August 1, 2007. It was planned and is maintained by the Minnesota Department of Transportation (MnDOT). The planning, design, and construction processes were completed more quickly than normal because Interstate 35W is a critical artery for commuters and truck freight. The bridge opened September 18, 2008, well ahead of the original goal of December 24.
MN 36 / WIS 64 