 | ||||
|---|---|---|---|---|
 Iowa 346 highlighted in red | ||||
| Route information | ||||
| Maintained by Iowa DOT | ||||
| Length | 12.470 mi [1] (20.069 km) | |||
| Major junctions | ||||
| West end |    US 218 / Iowa 27 / CR B60 at Nashua | |||
| East end |   US 18 / US 63 near New Hampton | |||
| Location | ||||
| Counties | Chickasaw | |||
| Highway system | ||||
| ||||
Iowa Highway 346 (Iowa 346) is a short state highway in north-northeastern Iowa. Iowa 346 begins at U.S. Route 218 / Iowa Highway 27 at Nashua, Iowa and ends at the intersection of U.S. Highway 18 and U.S. Highway 63 south of New Hampton.
Iowa Highway 346 begins at exit 220 of U.S. Route 218 (US 218) and Iowa Highway 27, the Avenue of the Saints highway, west of Nashua. It heads east and intersects Amherst Boulevard, which is the former alignment of US 218 through Nashua. It crosses the Cedar River adjacent to the dam which holds back Red Cedar Lake and passes the Big Four Fairgrounds before leaving Nashua. [2]
From Nashua, Iowa 346 takes an S-curve to the north and east at Bradford. After exiting the curve, it heads due east for the remainder of its length along section lines. The route travels 9 miles (14 km) through rolling farmland before ending at an interchange with U.S. Highway 18 and U.S. Highway 63 in Richland Township. [1]
Iowa Highway 346 was originally a spur route connecting Bradford to U.S. Route 218 in Nashua. [3] By 1954, Iowa 346 had been extended east to the intersection of U.S. Highway 18 and U.S. Highway 63 west of Fredericksburg. [4] After the Avenue of the Saints corridor was constructed and opened in 2003, the western end of Iowa 346 was moved 1⁄3 mile (0.54 km) to the west. [5]
The entire route is in Chickasaw County.
| Location | mi [1] | km | Destinations | Notes | |
|---|---|---|---|---|---|
| Nashua | 0.000 | 0.000 | US 218 / Iowa 27 / CR B60 | ||
| 0.365 | 0.587 | Amherst Boulevard | Former alignment of US 218 | ||
| Richland Township | 12.470 | 20.069 | US 18 / US 63 | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
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.
The Avenue of the Saints is a 563-mile-long (906 km) highway in the Midwestern United States that connects St. Louis, Missouri and St. Paul, Minnesota.
U.S. Highway 218 is an original United States Highway, created in 1926. Although technically a spur of U.S. Route 18, US 218 neither begins nor ends at US 18, but overlaps US 18 for 8 miles (13 km) near Charles City, Iowa. US 218 begins at U.S. Route 136 in downtown Keokuk and ends 319 miles (513 km) away at Interstate 35 and U.S. Route 14 at Owatonna, Minnesota. A large portion of US 218 in Iowa is part of the Avenue of the Saints, which connects St. Louis, Missouri, and Saint Paul, Minnesota.
Interstate 380 (I-380) is a 73-mile (117 km) auxiliary Interstate Highway in eastern Iowa. The route extends from Interstate 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+1⁄2 miles (2.4 km) north of U.S. Route 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 St. Louis, Missouri, with St. 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.
Iowa Highway 965 (Iowa 965) is a very short state highway in Coralville, Iowa that connects U.S. Highway 6 (US 6) to Interstate 80 (I-80) as there is no direct access between the two routes. Prior to 2003, Iowa 965 was a much longer route, extending to Cedar Rapids along the former alignment of US 218.
Iowa Highway 100 is a state highway located in Linn County, Iowa. The route is located primarily in Cedar Rapids and Marion and is known locally as Collins Road. It begins at US 30 / US 218 in western Cedar Rapids and ends at U.S. Highway 151 / Iowa Highway 13 in Marion.
Iowa Highway 8 is a state highway that runs from east to west in east central Iowa. Highway 8 is a short state highway in Iowa, at only 14 miles (23 km) long. Iowa 8 begins at an intersection with U.S. Highway 63 in Traer and ends at an intersection with U.S. Highway 218 northwest of Garrison. The route has largely remained the same since its designation.
Iowa Highway 92 (Iowa 92) is a state highway that runs from east to west across the state of Iowa. Iowa 92 is 279 miles (449 km) long. It begins at the Missouri River in Council Bluffs, where it is a continuation of Nebraska Highway 92. It stretches across the state and serves to roughly demarcate the southern one-third of Iowa. It ends at the Mississippi River in Muscatine where it continues into Illinois as Illinois Route 92. In 1939, Iowa 92 replaced the original Iowa 2 in its entirety.
U.S. Highway 30 (US 30) is a major east–west U.S. Highway which spans 330 miles (530 km) across the state of Iowa. It is the longest primary highway in the state and is maintained by the Iowa Department of Transportation. The route in Iowa begins at the Missouri River crossing at Blair, Nebraska, and ends at the Mississippi River crossing at Clinton, Iowa. Along the way, it serves Denison and Carroll in western Iowa, Boone, Ames, and Marshalltown in central Iowa, and Tama, Cedar Rapids, and DeWitt in eastern Iowa. Cutting across the central portion of the state, US 30 runs within close proximity of the Union Pacific Railroad's Overland Route for its entire length.
Iowa Highway 16 is a state highway running from west to east in southeastern Iowa. The highway has a length of 65.18 miles (104.90 km). The western terminus of Iowa Highway 16 is at an intersection with U.S. Highway 34 (US 34) between Agency and Batavia. The eastern terminus is located at Wever at an intersection with US 61.
Iowa Highway 58 is a state highway that runs from north to south in northeast Iowa. A five-and-a-half-mile (8.9 km) portion of the highway is overlapped by the Avenue of the Saints. Iowa 58 begins at U.S. Highway 63 (US 63) in Hudson and ends at an interchange with US 218 and Iowa 57. Iowa 58's route has changed many times in its history, but has always served Black Hawk County.
Iowa Highway 105 was an east–west route which ran 34 miles (55 km) from Lake Mills to St. Ansgar in northern Iowa. Since January 1, 1993, Iowa 105 has been known as County Road 105 (CR 105). County Road 105 was the first county road in Iowa to not follow the standard alphanumeric route numbering system.
Iowa Highway 150 (Iowa 150) is an 85-mile-long (137 km) state highway in eastern and northeastern Iowa. It begins at U.S. Route 218 (US 218) in Vinton and ends at US 52 and Iowa 24 in Calmar. From Vinton, it heads north and east towards Urbana where it meets Interstate 380 (I-380) and Iowa 27, the Avenue of the Saints highway. At Independence, it intersects US 20 on the south side of town. Further north, it converges with Iowa 3 in Oelwein.
Iowa Highway 934 (Iowa 934) was an unsigned state highway in Cedar Falls and Waterloo, Iowa. It was created in 1998 after University Avenue was vacated by U.S. Highway 218 (US 218), which had recently moved to a new freeway a few miles north. Iowa 934 extended from the Iowa 27 / Iowa 58 freeway in Cedar Falls, which was constructed at the same time as the US 218 freeway, to US 63.
Iowa Highway 188 is a state highway in north-central Iowa. The route is signed both north-south and east-west because of a 90-degree corner near the route's midpoint. The route begins at Iowa Highway 3 south of Clarksville and ends at U.S. Highway 63 near Tripoli.
Iowa Highway 415 is a short state highway that runs mostly north-to-south in central Iowa. Iowa 415 begins at U.S. Highway 6 in Des Moines and ends at Iowa Highway 141 east of Granger. Prior to 2003, Iowa 415 extended north from Polk City and ended at Iowa Highway 17 south of Madrid. Now, Iowa 415 turns west at Polk City and crosses the Des Moines River at Saylorville Lake prior to ending at Iowa 141. Since the rerouting in 2003, the northern terminus for Iowa 415 is now farther south than its northernmost point in Polk City.
U.S. Highway 18 (US 18) is the northernmost east–west U.S. Highway in the state of Iowa. As with all state highways in Iowa, it is maintained by the Iowa Department of Transportation (Iowa DOT). It enters the state by crossing the Big Sioux River between Inwood and Canton, South Dakota. It travels 311 miles (501 km) and connects Spencer, Mason City and Charles City. The highway leaves the state via the Marquette–Joliet Bridge over the Mississippi River at Marquette. Prior to becoming a U.S. Highway, the route US 18 follows was known as Primary Road No. 19 and the National Parks Pike.
Iowa Highway 412 (Iowa 412) was a state highway in Waterloo, Iowa. It began at U.S. Highway 63 (US 63) in southwestern Waterloo and traveled to the east and northeast approximately four and three-quarters miles (7.6 km) to US 218 in southeastern Waterloo. The route served as a southern bypass of Waterloo. The highway was added to the primary highway system in 1960 and given to the City of Waterloo in 1983. It was replaced in function by US 20, which that year relocated onto a freeway less than one-half mile (800 m) south of San Marnan Drive.
U.S. Highway 63 (US 63) is a United States Highway that runs through the eastern third of Iowa. It begins at the Missouri state line southwest of Bloomfield and travels north through Ottumwa, Oskaloosa, Tama, Waterloo, and New Hampton. It ends at the Minnesota state line at Chester. Between Ottumwa and Oskaloosa, the highway is a four-lane controlled-access highway. Through Waterloo and New Hampton, it is partially controlled; that is, the road as both grade-separated interchanges and at-grade intersections. The rest of the highway is largely a two-lane rural highway.
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