Allamakee County is the northeasternmost county in the U.S. state of Iowa. As of the 2020 census, the population was 14,061. Its county seat is Waukon.
Lansing is a city in Lansing Township, Allamakee County, Iowa, United States. The population was 968 at the time of the 2020 census.
The Julien Dubuque Bridge is a bridge over the Mississippi River that connects Dubuque, Iowa and East Dubuque, Illinois. The bridge is part of U.S. Route 20 (US 20). It is one of two automobile bridges over the Mississippi in the area, and is listed in the National Register of Historic Places.
Interstate 380 (I-380) is a 73-mile (117 km) auxiliary Interstate Highway in eastern Iowa. The route extends from I-80 near Coralville to Waterloo. I-380 connects the cities of Cedar Rapids and Waterloo, the state's second- and sixth-largest cities, respectively, to the Interstate Highway System. Except for its last 1.5 miles (2.4 km) north of U.S. Highway 20 (US 20), I-380 runs concurrently with Iowa Highway 27 (Iowa 27), which represents Iowa's portion of the 560-mile (900 km) Avenue of the Saints highway connecting Saint Louis, Missouri, with Saint Paul, Minnesota.
Iowa Highway 9 is the most northern of Iowa's east–west highways, traversing the entire northern tier of counties. It runs from the eastern terminus of South Dakota Highway 42 at the South Dakota border east of Sioux Falls, South Dakota near Benclare, to the Wisconsin border at Lansing where it continues as Wisconsin Highway 82. It is largely rural in character, bypassing any large city. Making a few dips north and south, the highway largely follows a very straight east–west alignment.
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.
The Great River Bridge is an asymmetrical, single tower cable-stayed bridge over the Mississippi River. It carries U.S. Route 34 from Burlington, Iowa to the town of Gulf Port, Illinois.
The Savanna–Sabula Bridge was a truss bridge and causeway crossing the Mississippi River that connected the city of Savanna, Illinois, with the island city of Sabula, Iowa. The bridge was put out of service on November 17, 2017, when its replacement, which lies a few dozen feet downstream, opened as the Dale Gardner Veterans Memorial Bridge. The bridge carried U.S. Route 52 over the river. It was also the terminus of both Iowa Highway 64 and Illinois Route 64. The bridge carried an average of 2,170 vehicles daily as of 2015, with 6% of that being truck traffic.
The Benjamin G. Humphreys Bridge was a two-lane cantilevered truss bridge carrying U.S. Route 82/U.S. Route 278 across the Mississippi River between Lake Village, Arkansas and Greenville, Mississippi. It was the first bridge to connect the two towns. The bridge was named for Benjamin G. Humphreys II, a former United States Congressman from Greenville.
The Hernando de Soto Bridge is a tied-arch bridge carrying Interstate 40 across the Mississippi River between West Memphis, Arkansas, and Memphis, Tennessee. The design is a continuous cantilevered cable-stayed steel through arch, with bedstead endposts. Memphians also call the bridge the "New Bridge", as it is newer than the Memphis & Arkansas Bridge downstream, and the "M Bridge", due to its distinctive shape. It is of similar construction to the Sherman Minton Bridge between Louisville, Kentucky, and New Albany, Indiana.
The Clinton Railroad Bridge, also called the Chicago and Northwestern Railway Bridge or more simply the Clinton Bridge, is a bridge that carries double tracked rail lines across the Mississippi River between Clinton, Iowa, and Fulton (Albany), Illinois. The bridge is a truss bridge with a swing span crossing the main river channel and is adjacent to the Gateway Bridge. The original bridge was constructed in 1858, and the first train crossed the bridge on January 19, 1860. The bridge was the second railroad crossing over the Mississippi River. In 1870, the bridge was declared a post route, therefore stopping the occupation of steamboats and approval of railroads. From 1859 to 1908, the mileage in operation increased from 28,789 to 229,230, prompting the Chicago and North Western Railway to replace the bridge with a new structure in 1900.
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.
State Trunk Highway 82 is a state highway in Wisconsin, United States. It runs east–west in southwest and south central Wisconsin from the Iowa border near Lansing, IA to Oxford.
The Plattsmouth Bridge is a truss bridge over the Missouri River connecting Cass County, Nebraska, and Mills County, Iowa at Plattsmouth, Nebraska. Until 2014, it carried U.S. Highway 34 across the river.
Iowa Highway 26 is a 11-mile-long (18 km) state highway that runs from south to north in Allamakee County, Iowa. It begins in Lansing at an intersection with Iowa Highway 9 at the Black Hawk Bridge and ends at the Minnesota border at New Albin. It continues into Minnesota as Minnesota State Highway 26. Iowa 26 was created in 1969 in a numbering swap with Iowa Highway 182. The designation was changed to match TH 26. The highway is the northernmost leg of the Great River Road in Iowa. Most of the highway is designated the Driftless Area Scenic Byway.
The Washington Bridge was a cantilever truss bridge over the Missouri River at Washington, Missouri over which Route 47 passed between Franklin County, Missouri and Warren County, Missouri. It has also been known as the Route 47 Missouri River Bridge.
The Umatilla Bridge is the collective name for a pair of bridges in the northwest United States, carrying Interstate 82/U.S. Route 395 (I-82/US 395) across the Columbia River at the Washington–Oregon border. The older bridge opened in July 1955 and is a steel through truss cantilever bridge and carries southbound traffic. Northbound traffic and pedestrians travel on the newer concrete arch bridge, opened in 1988.
U.S. Highway 61 (US 61) is a United States Highway that serves eastern Iowa. It enters the state from Missouri near Keokuk with US 136. North of Keokuk, it is overlapped by US 218 for a few miles. It the follows the course of the Mississippi River past Montrose and Fort Madison. It meets US 34 at Burlington. It passes through Wapello and bypasses Muscatine and Blue Grass on its way toward Davenport. There, it follows Interstate 280 (I-280) and I-80 around the Quad Cities. North of Davenport, it follows a freeway north toward DeWitt where it meets US 30. The highway continues north through Maquoketa and reaches the Dubuque area. There it is joined by US 151 and briefly by US 52. The two highways enter the downtown area on an expressway. Due to the proximity of the Mississippi River and railroad tracks that lie between, the routes have an indirect junction with US 20. The two highways leave the state and enter Wisconsin about one-half mile (800 m) north of the Illinois–Wisconsin state line.
U.S. Highway 136 (US 136) is a short U.S. Highway in Keokuk, Iowa. The route was designated nationally in 1951 and has remained largely unchanged through Keokuk since then. The highway originally crossed the Mississippi on the Keokuk Rail Bridge, which was the second bridge built and operated by Andrew Carnegie's Keokuk & Hamilton Bridge Company in that location. While it was designed for wagons and early automobiles, crossing the rail bridge became difficult in larger modern vehicles, specifically semi trucks. As a result, a new automobile-only bridge was built directly to the south of the older span. The Keokuk–Hamilton Bridge opened in 1985 eight months early and under budget.
U.S. Highway 34 (US 34) is a United States Highway that runs across the southern third of Iowa. It begins on a bridge over the Missouri River west of Glenwood and travels east where it meets Interstate 29 (I-29) and US 275. Through southwestern Iowa, the highway is, for the most part, a two-lane rural road with at-grade intersections; there are interchanges with US 59 near Emerson and US 71 near Stanton and Villisca. At Osceola, the highway intersects I-35 and US 69. Just east of Ottumwa, where the road meets US 63, the road joins the four-lane Iowa 163 for the remainder of its trek through the state. At Mount Pleasant, it overlaps US 218 and Iowa 27, the Avenue of the Saints Highway. From there, the road heads to the southeast where it crosses the Mississippi River on the Great River Bridge at Burlington.
Iowa 9 / WIS 82 
