U.S. Route 6 in Iowa

U.S. Highway 6 (US 6) is an east–west U.S. Highway which runs 319 miles (513 km) across the U.S. state of Iowa. The route is signed in places as the Grand Army of the Republic Highway. Like all state highways in Iowa, it is maintained by the Iowa Department of Transportation. The route begins at the Missouri River crossing at Council Bluffs. From there, it travels east through Oakland and Atlantic. North of Atlantic, the highway overlaps Interstate 80 (I-80) until De Soto. Between De Soto and Adel, the highway overlaps US 169 before splitting off to the east towards Des Moines. Through the Des Moines area, the highway runs about one mile (1.6 km) north or south of the I-35 / I-80 corridor.

This article is about the section of U.S. Route 6 in Iowa. For the entire route, see U.S. Route 6.

U.S. Highway 6
Grand Army of the Republic Highway
US 6 highlighted in red
Route information
Maintained by Iowa DOT
Length	322.655 mi[1] (519.263 km)
Existed	June 8, 1931[2]–present
Major junctions
West end	I-480 / US 6 at Omaha, Nebr.
	I-29 in Council Bluffs I-80 / US 71 near Atlantic I-80 / US 169 at De Soto I-35 / I-80 in Clive I-235 in Des Moines I-80 / US 65 in Altoona I-80 / Iowa 14 in Newton US 151 at the Amana Colonies I-80 / Iowa 38 near Wilton I-280 / US 61 at Davenport
East end	I-74 / US 6 at Moline, Ill.
Location
Counties	Pottawattamie Cass Adair Madison Dallas Polk Jasper Poweshiek Iowa Johnson Muscatine Cedar Scott
Highway system
United States Numbered Highway System List Special Divided Iowa Primary Highway System Interstate U.S. State Secondary Scenic ← Iowa 5 Iowa 7 → ← Iowa 31 US 32 Iowa 32 →

At Altoona, the route again overlaps I-80 until Newton, where it splits away from I-80. The highway passes near or through the cities of Kellogg, Grinnell, Victor, Marengo, the Amana Colonies, and Tiffin before entering the Coralville / Iowa City area. Through Coralville and Iowa City, US 6 has no direct access to I-80, I-380, or US 218; other routes like Iowa Highway 1 (Iowa 1) and Iowa 965 provide direct access. From Iowa City, the highway heads to the east-southeast through West Liberty and Atalissa. Near Wilton, the route heads north to I-80 where it again overlaps to Davenport. At Davenport, US 6 then follows I-280 and US 61 before entering the city. On the eastern side of Davenport, it joins I-74 and enters Bettendorf before leaving Iowa for Illinois.

Dating back to 1910, the route US 6 follows was originally the Great White Way and River-to-River Road. Both were auto trails which connected Council Bluffs and Davenport. When the U.S. Highway System was created in 1926, the highway was designated U.S. Highway 32. US 32 was renumbered in 1931 as US 6 was extended to the west coast. As the Interstate Highway System expanded in the 1950-1970s, US 6's importance as a cross-state route was diminished by I-80. As a result, the least-traveled sections of the route were moved onto I-80 and control of the vacated sections of highway was given to local jurisdictions.

Route description

US 6 is a cross-state route that connects Council Bluffs and Davenport by way of Des Moines and Iowa City. The route parallels I-80 for most of its length; however nearly one-third of the route overlaps the Interstate Highway. While the route is away from I-80, US 6 is a two-lane highway with a rural speed limit of 55 miles per hour (90 km/h). However, between Adel and Waukee, the roadway is a four-lane divided highway that has a speed limit of 65 mph (105 km/h).[3]

Western Iowa

US 6 crosses the Missouri River via the Grenville Dodge Memorial Bridge into Council Bluffs with I-480. Just three-quarters mile (1.2 km) into the state, I-480 ends at an interchange with I-29. US 6 heads east along I-29 south on the western side of Council Bluffs, then it overlaps I-80 and continues due east. On the east side of Council Bluffs, I-80 and US 6 split. Near Oakland, the highway follows the north–south US 59 for two miles (3.2 km). Near Lewis, the road turns to the north-northeast until it reaches Atlantic. In Atlantic, the route turns back to the east and heads towards downtown where it meets Iowa 83. US 6 / Iowa 83 travel together to the eastern side of Atlantic where they meet US 71. The three routes run together for four miles (6.4 km), when US 6 / US 71 split away from Iowa 83 and continue north to I-80. At I-80, US 6 leaves US 71 and joins I-80. At this point, US 6 begins the first of three instances when its traffic is routed along I-80. In the eastern part of Cass County, the two routes meet the northern end of Iowa 148.[4]

As I-80 and US 6 approach Adair, and the highways curve slightly to the south to bypass the community. There are two interchanges in Adair; both of the intersecting roads, at one time or another, carried US 6. County Road G30 (CR G30), the White Pole Road, was the original alignment of US 6,[5] while CR N54 has not carried US 6 since 1980.[6][7] Further east is an interchange with Iowa 25. About one mile (1.6 km) south of the interchange is Freedom Rock. Each year for Memorial Day, the rock is repainted with a patriotic scene by local artist Ray "Bubba" Sorenson II.[8] Near Dexter, I-80 and US 6 graze the northwestern corner of Madison County. After two miles (3.2 km), the routes enter Dallas County and meet CR F60, another former alignment of US 6.[9] Near the CR F90 / CR P58 interchange, they start heading northeast towards Des Moines. At De Soto, US 6 splits away from I-80 at the interchange with US 169.[4]

Central Iowa

At De Soto, US 6 turns to the north, overlapping US 169 for five miles (8.0 km) to Adel. East of Adel, US 6 is a four-lane divided highway for 14 miles (23 km), during which, it passes through Waukee, Clive, and Urbandale along Hickman Road, and intersects I-35 / I-80. Over the next two miles (3.2 km), it serves as the border between Urbandale and Windsor Heights. At 63rd Street in Des Moines, US 6 intersects Iowa 28. For one-half mile (800 m), US 6 / Iowa 28 run together on Hickman Road. Turning north, they run together for another mile (1.6 km) along Merle Hay Road. At Douglas Avenue, US 6 splits away from Iowa 28 and continues east, becoming Euclid Avenue just west of the Des Moines River. In north-central Des Moines, it intersects US 69 and I-235. In northeast Des Moines, it turns to the northeast along Hubbell Avenue, which takes US 6 to Altoona. West of Altoona, it intersects US 65 and continues northeast passing Adventureland theme park and Prairie Meadows casino. In northwest Altoona, US 6 intersects I-80 and US 65.[4] Here, US 6 rejoins I-80 for the second time. After a third exit for Altoona, the interstate resumes its 70 mph (115 km/h) rural limit. Near Colfax, the highways cross the South Skunk River. After an interchange with Iowa 117, the highway is forced to the north to avoid crossing the river multiple times. As the roadway returns south to its original line, it meets CR F48, which was another former alignment of US 6.[6]

US 6 between Newton and Grinnell

At Newton, US 6 splits away from I-80 at the Iowa 14 interchange. US 6 overlaps Iowa 14 for one-third mile (540 m). It turns off of Iowa 14 and enters the western side of Newton where it passes the Jasper County courthouse located in the downtown area. Between Newton and Grinnell, the route has more hills and curves. The highway crosses the North Skunk River near Kellogg. At Grinnell, it intersects Iowa 146 southwest of the Grinnell College campus. East of Grinnell, the route straightens out and is overlapped by US 63 for two miles (3.2 km) and by Iowa 21 for four miles (6.4 km).[1] Near Victor, US 6 takes a northeasterly course through Ladora towards Marengo. At Marengo, it intersects the eastern end of Iowa 212. Five miles (8.0 km) east of Marengo is the western end of Iowa 20. Here, US 6 forms the southern leg of the Amana Colonies Trail. Three miles (4.8 km) later, it's joined by US 151 for two miles (3.2 km). US 6 heads to the southeast towards Tiffin and passes underneath I-380, but does not have direct access.[4]

Eastern Iowa

At Coralville, US 6 passes underneath I-80, but one-half mile (800 m) to the east, Coral Ridge Avenue provides direct access to I-80. Entering Iowa City, the highway passes the campus of the University of Iowa, its main hospital, and VA Hospital. US 6 curves to the south to be adjacent to the Iowa River, where it meets and overlaps Iowa 1 for one-half mile (800 m). US 6 and Iowa 1 go in separate directions at a signal controlled intersection, where, less than one-quarter mile (400 m) away, US 6 crosses the Iowa River. From Iowa City, it heads in an east-southeast direction towards West Liberty. The highway enters West Liberty from the northwest corner and curves southward. At the northern end of Iowa 70, it turns to the east again towards Atalissa and Wilton. Ten miles (16 km) southwest of Wilton, the road crosses the Cedar River. Three miles (4.8 km) south of Wilton, the highway overlaps Iowa 38 and the two routes head towards I-80. At the Wilton interchange along I-80, Iowa 38 turns west and US 6 turns east onto the interstate, respectively.[1]

As I-80 and US 6 approach the Quad Cities metropolitan area, the speed limit drops again to 65 mph (105 km/h).[10] Just within the city limits of Davenport is the I-280 interchange. US 6 exits to the south to join I-280. US 61 also joins I-280 at this interchange, but from the opposite direction. US 6 only overlaps I-280 / US 61 for four-fifths mile (1.3 km) before exiting onto Kimberly Road. Heading southeast into Davenport, US 6 is a two-lane highway for three miles (4.8 km). At Fairmount Street, it becomes a four-lane divided highway and straightens out to head due east. Near NorthPark Mall, it intersects Northwest Boulevard, which becomes Iowa 130 at I-80, and both one-way legs, Welcome Way southbound and Brady Street northbound, of US 61 Business, which prior to 2010 was US 61.[11][12] US 6 briefly dips to the southeast and straightens out again towards I-74. The highway joins I-74 and heads to the south towards Moline, Illinois.[1] For about one mile (1.6 km), I-74 / US 6 forms the boundary of Davenport and Bettendorf.[4] The two routes completely enter Bettendorf and descend into the Mississippi River valley, where they meet US 67 at a complex series of exit and entrance ramps. They then ascend the Iowa-Illinois Memorial Bridge, known locally as the I-74 Bridge, and cross the Mississippi River into Illinois.[4]

History

The White Pole Road in Casey

Before the U.S. Highway System came into being in 1926, roads in Iowa were maintained and promoted by local organizations which sought to drive traffic into their communities. Two such organizations created virtually parallel routes connecting Council Bluffs and Davenport via Des Moines. The routes, the southern Great White Way and northern River-to-River Road, eventually merged into the Whiteway-7-Highway. The new route followed the Great White Way from Council Bluffs to Des Moines and the River-to-River Road from Des Moines to Davenport.[13] In 1926, the Whiteway-7-Highway became US 32, which itself became US 6 in 1931.[2] For a time, US 6 was the busiest highway in the state.[14] After I-80 was built near US 6, portions of the U.S. Highway were moved onto the Interstate Highway. Interest in the original US 6 corridor has grown in the 21st century by people who seek to drive traffic back into their communities.

Great White Way

Great White Way
Location	Council Bluffs–Davenport
Length	340 mi[13] (550 km)
Existed	July 30, 1914–September 21, 1922[13]

The Great White Way was formed in 1910 by the White Pole Auto Club. The route was built along the Chicago, Rock Island & Pacific Railroad between Council Bluffs and Des Moines. Members of the auto club painted poles along the route white, which lead the route to be known as the White Pole Road. The Great White Way passed through Oakland, Atlantic, Adair, De Soto, and Valley Junction. In late 1912, the Great White Way was extended east to Davenport, passing through Pella, Oskaloosa, Washington, and Muscatine.[15] In 1913, when the Iowa State Highway Commission began registering named trails longer than 25 miles (40 km), the Great White Way Association paid the $5.00 fee ($129.00 in 2019 dollars[16]) to become the first official registered highway route on July 30, 1914.[13] When the primary highway system was created, the Great White Way was assigned Primary Road No. 2.[17]

In 2002, a group of residents from Adair, Casey, Menlo, Stuart, and Dexter formed a new group to promote the White Pole Road. Their intention was to bring visitors to their towns by diverting some traffic from the nearby I-80 / US 6 corridor to the south and onto the historic road. Poles were painted white up to nine feet (2.7 m) high line along the 26-mile (42 km) drive. White Pole Road logo signs in each town give a short history of the town and their founders.[18]

River-to-River Road

River-to-River Road
Location	Council Bluffs–Davenport
Length	316 mi[13] (509 km)
Existed	April 16, 1918[13]–November 11, 1926

The River-to-River Road (RRR) was also created in 1910 and also connected Council Bluffs and Davenport via Des Moines. This route, however, traveled a more northern route than the Great White Way. The route passed through Neola, Elk Horn, Guthrie Center, Adel, Des Moines, Newton, Marengo, Iowa City, and Wilton.[15] The route's origins trace back to the 1909–10 winter season which brought, on average, 11 inches (28 cm) of snow more than the previous year, which was followed by an unusually dry spring.[19] Coupled with the advent of the Ford Model T, many Iowans complained about the lack of good roads in the state.[20] Governor B.F. Carroll convened a Good Roads convention on March 8–9, 1910, to discuss the condition of roads in his state. It was then that the route of the RRR was decided among the convention delegates. Further influencing the River-to-River corridor was an announcement from the American Automobile Association that the annual Glidden Tour would pass through Iowa. Gov. Carroll arranged for farmers who lived along the route to drag all 380 miles (610 km) of the road on the Saturday prior to the tour's arrival at precisely 9 am.[21] Work was finished in one hour.[22]

When the highway commission started accepting registered routes, the RRR association planned to register their route as soon as possible. But miscommunication between association members and with the highway commission delayed the actual registration for years.[23] The route became official on April 16, 1918.[13] When the primary highway system was created, the River-to-River Road was assigned Primary Road No. 7.[17]

Whiteway-7-Highway

Whiteway-7-Highway
Location	Chicago, Ill.–Omaha, Neb.
Existed	September 21, 1922[13]–November 11, 1926[2]

In 1922, the Whiteway-7-Highway Association filed an application to register the Whiteway-7-Highway with the Iowa State Highway Commission. The commission was concerned with the Whiteway-7's similarity to the Great White Way's name and route markings. The Great White Way was marked with a 6-foot-wide (1.8 m) stripe, while the Whiteway-7 would be marked with a 4-foot (1.2 m) stripe with a black circle containing a white seven. Another concern with the new route was since its name contained the number seven, the route would be assigned along Primary Road Nos. 2 and 7. On September 25, 1922, the highway commission gave the Great White Way from Des Moines to Council Bluffs, which would become part of the Whiteway-7-Highway, the number 7 and gave the River-to-River Road's western half number 2.[24] Eight months later, the Iowa State Highway Commission reversed course and restored Primary Road Nos. 2 and 7 to their original roadways. Although disappointed, the Whiteway-7-Highway Association responded by removing the number from their name. On November 27, 1925, the route officially became the Whiteway Highway.[25]

U.S. Numbered Highways

U.S. Highway 32
Location	Council Bluffs–Davenport
Length	322 mi[26] (518 km)
Existed	November 11, 1926–June 8, 1931[2]

On November 11, 1926, members of the American Association of State Highway Officials approved the plan to create a system of interstate highways across the country. Iowa's Whiteway Highway would take on the designation of US 32. For four-and-a-half years, US 32 spanned from Chicago to Council Bluffs. Meanwhile, Roosevelt Highway Association was pushing to have US 6 extended westward.[24] On June 8, 1931, all of the Iowa portion of US 32 was absorbed into a newly extended US 6, which had previously connected Erie, Pennsylvania, and Cape Cod. The new US 6 also replaced US 38 in Nebraska and Colorado. By the end of 1937, US 6 extended from coast to coast.[2] At the time, it and US 30 were the only cross country highways to bear a single route number across the country.[27]

When the last segment of highway between Adel and Des Moines was paved in 1931, US 6 became the fourth paved road to cross the state.[28] In the early 1940s, US 6 was the most heavily traveled route in the state. The state highway commission recorded that on average, over 1900 vehicles used the road per day at any rural point.[14] That compares to nearly 3000 vehicles using US 6 daily in 2012.[1]

On April 29, 1947, the Iowa General Assembly approved an act designating US 6 as the Grand Army of the Republic Highway, a distinction the route shares in other states.[29] Governor Robert D. Blue dedicated the G.A.R. Highway at the Old Capitol on September 28, 1947. In attendance were the last two surviving Iowa veterans of the Civil War.[30] In the 1950s, the Iowa State Highway Commission began to straighten the route. A section of the highway between Grinnell and Ladora was straightened, which resulted in Brooklyn and Victor being bypassed.[31] Between Dexter and West Des Moines, US 6 swapped alignments with Iowa 90 in 1958.[32] In 1961, US 6 was routed onto the new Interstate 80 from the Iowa 90 interchange to the Baxter exit, currently exit 159. Iowa 90 was extended onto the old US 6 alignment.[33] However, in 1967, those changes were reversed and US 6 was taken off I-80 and put back on the road which had been Iowa 90. Iowa 90 was assigned the section of US 6 between what's now exit 106 along I-80 and exit 69 along I-35.[34][35]

Abandoned sections

Since the 1970s, portions of US 6 have been moved permanently onto I-80. The first section, between US 71 and Adair, was rerouted in 1972. The abandoned section became an extended Iowa 83 and CR G30 in Adair County.[36] In 1980, three lengthy sections were moved onto the Interstate: 26 miles (42 km) in western Iowa between Adair and Dexter,[37] 25 miles (40 km) in central Iowa between Altoona and Newton,[38] and 20 miles (32 km) in eastern Iowa between Wilton and Davenport.[39] All three sections were originally kept as state highways, but in 1991, when the Iowa Department of Transportation first showed the new state highways' designations on the state highway map, the central section already had been turned over to Polk and Jasper counties. The western segment was numbered Iowa 925 and the eastern segment Iowa 927.[40]

On July 1, 2003, 15 miles (24 km) between Dexter and Adel were turned over to Dallas County.[41] US 6, which had previously split away from I-80 at the Dexter exit, was continued along I-80 to the US 169 interchange at De Soto, and then along US 169 to Adel. The former segments, Iowa 925 and Iowa 927, were turned over to their respective counties as well.[42][43]

Major intersections

County	Location	mi[1]	km	Exit[4]	Destinations	Notes
Missouri River		0.000	0.000		I-480 / US 6 west (Gerald R. Ford Expressway) – Omaha	Continuation into Nebraska
				Grenville Dodge Memorial Bridge; Nebraska–Iowa state line
Pottawattamie	Council Bluffs	0.274	0.441	0	Riverfront	Eastbound exit and westbound entrance; exit number follows I-480
		0.721	1.160	—	Council Bluffs	Eastbound left exit and westbound left entrance; former US 6 east
				—	I-480 ends / I-29 north – Sioux City	Eastern end of I-480 overlap; western end of I-29 overlap; clockwise terminus of I-480; left exit eastbound; I-29 exit 53B
		1.299	2.091	53A	9th Avenue / Harrah's Boulevard – Casino	Exit numbers follow I-29
		2.120	3.412	52	Nebraska Avenue – Riverboat Casino, Dog Track-Casino
		2.854	4.593	—	I-29 south / I-80 east (Local) – Kansas City	Eastern end of I-29 overlap; eastbound exit and westbound entrance; I-29 exit 51
				—	I-80 west – Omaha	Western end of I-80 overlap; I-80 east exit 1A, west exit 1
		3.815	6.140	1B	S. 24th Street – Council Bluffs, Mid-America Center	Exit numbers follow I-80; closed; now part of I-29 interchange
		5.268	8.478	3	South Expressway – Council Bluffs, Business District, Lake Manawa	Closed; now part of I-29 interchange; former Iowa 192 north
		3.837	6.175	4B	I-29 north / I-80 west (Local) – Sioux City	Westbound exit and eastbound entrance; I-29 south exit 48
				4A	I-29 south – Kansas City	Signed as exit 4 eastbound; I-29 north exits 48A-B
		7.309	11.763	5	Madison Avenue – Council Bluffs
		10.683	17.193		I-80 east – Des Moines, Council Bluffs	Eastern end of I-80 overlap; east end of freeway section; access to CHI Health Mercy Council Bluffs via Kanesville Boulevard (former US 6 west); I-80 exit 8
	Belknap Township	30.626	49.288		US 59 south – Shenandoah	Western end of US 59 overlap
	Oakland	33.030	53.157		US 59 north – Avoca	Eastern end of US 59 overlap
Cass	Cass Township	45.879	73.835		Iowa 48 south – Griswold
	Atlantic	56.227	90.489		Iowa 83 west (Poplar Street)	Western end of Iowa 83 overlap
		57.803	93.025		US 71 south – Villisca	Western end of US 71 overlap
	Grove Township	59.803	96.244		Iowa 83 east – Anita	Eastern end of Iowa 83 overlap
	Pymosa Township	66.249	106.617		I-80 west / US 71 north – Audubon, Council Bluffs	Eastern end of US 71 overlap; western end of I-80 overlap; I-80 exit 60
	Benton Township	70.235	113.032	64	CR N28 – Wiota	Exit numbers follow I-80
	Grant Township	75.967	122.257	70	Iowa 148 south – Anita, Exira
Adair	Adair	81.229	130.725	75	CR G30
		81.968	131.915	76	CR N54 – Adair
	Casey	88.399	142.264	83	CR N77 (Antique Country Drive) – Casey
	Jefferson Township	91.898	147.895	86	Iowa 25 – Guthrie Center, Greenfield
		93.887	151.096	88	CR P20 – Menlo
	Stuart	98.882	159.135	93	CR P28 – Stuart, Panora
Adair–Madison county line	Lincoln–Penn township line	102.882	165.573	97	CR P48 – Dexter
Dallas	Dexter	105.788	170.249	100	CR F60 – Dexter, Redfield	Former US 6
	Adams Township	109.665	176.489	104	CR P57 – Earlham
		112.061	180.345	106	CR P58 / CR F90
	De Soto	115.540	185.944		I-80 east / US 169 south – Des Moines, De Soto, Winterset	Eastern end of I-80 overlap; western end of US 169 overlap; I-80 exit 110
	Adel	120.910	194.586		US 169 north – Fort Dodge	Eastern end of US 169 overlap
Polk	Clive–Urbandale city line	133.404	214.693		I-35 / I-80	I-80 exit 125
	Des Moines	137.191	220.788		Iowa 28 south (63rd Street)	Western end of Iowa 28 overlap
		138.504	222.901		Iowa 28 north (Merle Hay Road)	Eastern end of Iowa 28 overlap
		142.560	229.428		Iowa 415 north (2nd Avenue)
		143.565	231.045		US 69 (E. 14th Street)
		144.881	233.163		I-235	I-235 exit 12
	Des Moines–Altoona city line	148.579	239.115		US 65 – Indianola	Interchange
	Altoona	149.921	241.274		I-80 west / US 65 / Iowa 330 north – Marshalltown, Bondurant	Western end of I-80 overlap; I-80 exit 142
	Altoona–Bondurant city line	151.562	243.915	143	Altoona, Bondurant	Exit numbers follow I-80
	Mitchellville	156.698	252.181	149	Mitchellville
Jasper	Colfax	163.049	262.402	155	Iowa 117 – Mingo, Colfax
	Sherman Township	166.722	268.313	159	CR F48 – Baxter
	Newton	172.156	277.058		I-80 east / Iowa 14 south – Monroe, Davenport	Eastern end of I-80 overlap; western end of Iowa 14 overlap; I-80 exit 164
		173.246	278.812		Iowa 14 north – Marshalltown	Eastern end of Iowa 14 overlap
	Kellogg Township	182.272	293.338		Iowa 224 to I-80 – Kellogg
Poweshiek	Grinnell	192.580	309.927		Iowa 146 (West Street)
	Malcom Township	199.652	321.309		US 63 north – Tama	Western end of US 63 overlap
		201.691	324.590		US 63 south – Malcom, Montezuma	Eastern end of US 63 overlap
	Warren Township	211.702	340.701		Iowa 21 south – Deep River	Western end of Iowa 21 overlap
Iowa	Hartford Township	215.935	347.514		Iowa 21 north – Belle Plaine	Eastern end of Iowa 21 overlap
	Marengo	227.046	365.395		Iowa 212 west – Marengo
	Amana Colonies	232.808	374.668		Iowa 220 east (Amana Colonies Trail)
		235.859	379.578		US 151 south to I-80	Western end of US 151 overlap
		237.801	382.704		US 151 north (Amana Colonies Trail) – Cedar Rapids	Eastern end of US 151 overlap
Johnson	Coralville	252.849	406.921		To I-80 (Coral Ridge Avenue)
	Iowa City	257.130	413.811		Iowa 1 north	Western end of Iowa 1 overlap
		257.870	415.002		Iowa 1 south – Kalona	Eastern end of Iowa 1 overlap
Muscatine	West Liberty	274.637	441.985		Iowa 70 south
	Moscow–Wilton township line	286.218	460.623		Iowa 38 south	Western end of Iowa 38 overlap
Cedar	Sugar Creek Township	291.120	468.512		I-80 west / Iowa 38 north – Des Moines	Eastern end of Iowa 38 overlap; western end of I-80 overlap; west end of freeway section; I-80 exit 271
	Farmington Township	297.184	478.271	277	Bennett, Durant	Exit numbers follow I-80
Scott	Cleona Township	300.217	483.152	280	CR Y30 – New Liberty, Stockton
	Walcott	304.452	489.968	284	CR Y40 – Walcott, Plain View
	Davenport	310.110	499.074	—	I-80 east / US 61 north – Chicago I-280 begins	Eastern end of I-80 overlap; western end of I-280/US 61 overlap; I-80 exit 290
		310.934	500.400		I-280 east / US 61 south / CR F58 west – Walcott	Eastern end of I-280/US 61 overlap; east end of freeway section; I-280 exit 1; CR F58 is former US 6 west
		317.323	510.682		US 61 Business south (Welcome Way)	One-way street
		317.464	510.909		US 61 Business north (Brady Street)	One-way street
	Davenport–Bettendorf city line	320.064	515.093		I-74 west / Spruce Hills Drive	Western end of I-74 overlap; I-74 exit 2
	Bettendorf	321.139	516.823	3	Middle Road	Exit numbers follow I-74
		321.892– 322.974	518.035– 519.776	4	US 67 (Grant Street, State Street) / Kimberly Road
Mississippi River		322.655	519.263	I-74 Bridge; Iowa–Illinois state line
					I-74 east / US 6 east – Peoria	Continuation into Illinois
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Closed/former       Concurrency terminus       Incomplete access

References

1. 2011 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2011. Retrieved May 26, 2012.
2. Weingroff, Richard F. "U.S. 6 - The Grand Army of the Republic Highway". Federal Highway Administration. Retrieved September 26, 2010.
3. Staff (February 8, 2010). "What Are the Legal Speed Limits?" (PDF). Iowa Department of Transportation. Retrieved October 6, 2013.
4. Transportation Map (PDF) (Map). Iowa Department of Transportation. 2013. Retrieved October 6, 2013.
5. Iowa State Highway Commission (June 1932). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa State Highway Commission. § L7–M9. Retrieved August 9, 2012.
6. Iowa State Highway Map (PDF) (Map). Iowa Department of Transportation. 1980. § D3. Retrieved August 9, 2012.
7. Iowa State Highway Map (PDF) (Map). Iowa Department of Transportation. 1981. § D3. Retrieved August 9, 2012.
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External links

Template:Attached KML/U.S. Route 6 in Iowa

KML is from Wikidata

• Iowa division of the U.S. Route 6 Tour Association
• The White Pole Road
• River to River: Iowa's Forgotten Highway 6

U.S. Route 6
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