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Interstate 80 in Iowa

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This article is about the section of Interstate 80 in Iowa. For the entire route, see Interstate 80.

Interstate 80 marker

Interstate 80

Iowa's Interstate Highways with I-80 highlighted in red.
Iowa's Interstate Highways with I-80 highlighted in red.
Route information
Maintained by Iowa DOT
Length306.268 mi[2] (492.891 km)
ExistedSeptember 21, 1958 (1958-09-21)[1]–present
History
  • Under construction: 1958–1972[1]
  • Reconstruction: 1980s–1990s
NHSEntire route
Major junctions
West end I-80 at Nebraska state line
Major intersections
East end I-80 at Illinois state line
Location
CountryUnited States
StateIowa
CountiesPottawattamie, Cass, Adair, Madison, Dallas, Polk, Jasper, Poweshiek, Iowa, Johnson, Cedar, Scott
Highway system
← Iowa 78→ Iowa 81

Interstate 80 (I-80) is a transcontinental Interstate Highway in the United States, stretching from San Francisco, California, to Teaneck, New Jersey. In Iowa, the highway travels west to east through the center of the state. It begins at the Missouri River in Council Bluffs and heads east through the southern Iowa drift plain. In the Des Moines area, I-80 meets up with I-35 and the two routes bypass Des Moines together. In Ankeny, the interstates split and I-80 continues east. In eastern Iowa, it provides access to the University of Iowa in Iowa City. Northwest of the Quad Cities in Walcott is Iowa 80, the World's Largest Truckstop. I-80 passes along the northern edge of Davenport and Bettendorf and leaves Iowa via the Fred Schwengel Memorial Bridge into Illinois.

Before I-80 was ever planned, the route between Council Bluffs and Davenport, which passed through Des Moines, was vital to the state. Two competing auto trails sought to be the best path for travelers. The two trails combined in the 1920s and eventually became U.S. Route 32 (US 32) in 1926. US 6, which had taken the place of US 32, became the busiest highway in the state. In the early 1950s, plans were drawn up to build an Iowa Turnpike, to be the first modern four-lane highway in the state, along the US 6 corridor. Plans for the turnpike were shelved when the Interstate Highway System was created in 1956.

Construction of I-80 took place over 14 years. The first section opened on September 21, 1958, in the western suburbs of Des Moines. New sections of interstate opened up regularly over the next twelve years, though construction in eastern Iowa was completed in 1966. The final piece of I-80, the Missouri River bridge to Omaha, Nebraska, opened on December 15, 1972. In the 1980s, I-80 was rebuilt in Iowa and across the country.

Route description

Interstate 80 is the longest Interstate Highway in Iowa. It extends from west to east across the central portion of the state through the population centers of Council Bluffs, Des Moines and the Quad Cities.[3] The majority of the highway runs through farmland, yet roughly one-third of Iowa's population live along the I-80 corridor.[4]

Western Iowa

I-80 begins in Iowa on a bridge over the Missouri River, where it leaves Omaha, Nebraska, to enter Council Bluffs. Almost immediately after landing on the Iowa side of the bridge, it meets I-29 at a Y interchange. From eastbound I-80, northbound I-29 is accessed via a left exit. The two interstates travel together through southern Council Bluffs for Template:Convert/spell. The speed limit through this section is 55 miles per hour (90 km/h).[5] The S. 24th Street interchange serves a commercial area anchored by the Mid-America Center and Horseshoe Casino. The South Expressway exit, which marks the southern end of Iowa Highway 192 (Iowa 192), is adjacent to a big box store commercial center. I-29 and I-80 diverge at another Y interchange; I-29 heads south and I-80 heads to the northeast.[3]

East of the I-29 split, I-80 travels northeast for the next 20 miles (32 km). It passes through eastern Council Bluffs where it serves a shopping mall. Just after the Madison Avenue exit, the speed limit increases to 65 mph (105 km/h).[5] Exit 8 is the first of many encounters with U.S. Route 6 (US 6).[3] After which, the interstate leaves Council Bluffs and speed limits rise to the rural limit of 70 mph (110 km/h).[5] Here, I-80 roughly follows the course of Mosquito Creek past Underwood and Neola, both of which are served by interchanges. About Template:Convert/spell of Neola, I-80 curves to the east as it meets the eastern end of I-680 at a directional T interchange.[3]

A highway underneath a clear sky surrounded by harvested cropland and green pastures.
Interstate 80 rolling through western Iowa

For the next 50 miles (80 km), I-80 runs in more or less a straight line. Interchanges are somewhat regular; 3 to 6 miles (5 to 10 km) of Pottwattamie and Cass county farmland separate each exit from the next. Near Avoca, it crosses the West Nishnabotna River and meets US 59. East of the interchange, the interstate crosses the eastern branch of the West Nishnabotna. As I-80 approaches the are north of Atlantic, there are three interchanges, Iowa 173, County Road N16 (CR N16), and US 71, which serve the western, central, and eastern parts of the city, respectively. Iowa 173, which serves Atlantic by way of Iowa 83, also connects to Elk Horn and Kimballton. US 71, which continues north towards Carroll, carries US 6 traffic to the interstate. This is the first of three times when US 6 traffic is routed along I-80. In the eastern part of Cass County, the two routes meet the northern end of Iowa 148.[3]

As I-80 and US 6 approach Adair, 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. CR G30, the White Pole Road, was the original alignment of US 6,[6] while CR N54 carried US 6 has not carried US 6 since 1980.[7][8] Further east is an interchange with Iowa 25. About Template:Convert/spell 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.[9] Near Dexter, I-80 and US 6 graze the northwestern corner of Madison County. After Template:Convert/spell, the routes enter Dallas County and meet CR F60, another former alignment of US 6.[3]

Central Iowa

Continuing east, the two routes follow a due-east section of highway, where they pass Earlham. 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. Tourists who want to see the covered bridges of Madison County, made famous by the book The Bridges of Madison County and the birthplace of John Wayne are directed to follow US 169 south to Winterset.[10][11] Between De Soto and Van Meter, the interstate crosses the middle and north branches of the Raccoon River, which converge just south of the crossing of the North Raccoon.[3]

As the highway gets closer to Des Moines, it moves more sharply to the northeast. In southern Waukee, near the entrance ramp to the eastbound rest area, there is an overpass which carries Alice's Road. A new interchange is planned for this location, which is scheduled to be open in late 2013 or early 2014.[12][needs update] As I-80 enters West Des Moines, the speed limit lowers to 65 mph (105 km/h) and the path of the interstate straightens out to the east at the Jordan Creek Parkway exit.[13] The highway adds a third lane eastbound and drops the third lane westbound. Almost Template:Convert/spell to the east is the interchange with I-35, which also marks the beginning of I-235. Eastbound I-80 exits the freeway via a flyover ramp to northbound I-35; eastbound I-235 begins as the continuation of the I-80 freeway.[3] Locally, this exit is called the "west mixmaster".[14]

I-35 / I-80 approaching the Des Moines River during flooding in 2008.

I-80 shares the next 14 miles (23 km) with I-35 on a six-lane freeway where each direction's three lanes are separated by a Jersey barrier. They begin their journey together by heading north; they briefly run through West Des Moines and then cross into Clive at University Avenue. At the Clive–Urbandale city limits, is the interchange with Hickman Road, which carries US 6. Hickman Road serves a truck stop to the west and the Living History Farms visitor center to the east. The two interstates continue north through Urbandale where they pass Douglas Avenue. The Iowa 141 exit is at Rider Corner,[15] the point where the I-35 / I-80 freeway curves 90 degrees to the east.[3]

East of the 86th Street exit, the freeway begins a slow descent towards the Des Moines River. Merle Hay Road, named for the first Iowan to die in World War I, carries Iowa 28 from the south to its northern end at the interstates. They cross the Des Moines River just south of the mouth of Beaver Creek. Template:Convert/spell to the east is Iowa 415 and a Template:Convert/spell further east is US 69. Between the interchanges there is a fourth lane in each direction. At the end of their 14 miles (23 km) together, I-35 exits to the north and I-235's eastern end is to the south at the "east mixmaster".[3]

East of I-35, meets up with US 65 on the outskirts of Altoona. The two routes only share the highway for Template:Convert/spell as US 65 splits away at the next exit. Here, US 6 rejoins I-80 for the second of three times and the interstate returns to its four-lane configuration. After a third exit for Altoona, the interstate resumes its 70 mph (110 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 it returns south to its original line, it meets CR F48, which was another former alignment of US 6.[7] At the Iowa 14 exit in Newton, US 6 exits off the interstate. East of Newton is an interchange that serves the Iowa Speedway.[3]

A typical roadside view from I-80

Template:Convert/spell east of the speedway in an exit for Iowa 224 which connects to Kellogg. After this interchange, the highway curves to the northeast and descends a hill to cross the North Skunk River. Shortly after the river, it curves back to the east and climbs up the hill.[16] As the road straightens out, it begins a 35-mile-long (56 km) stretch of straight higwhay.[2] Between the river and the Iowa 146 exit south of Grinnell, the farmland that surrounds the interstate undulates.[16] Just south of Malcom, it meets US 63. Further east and seemingly in the middle of nowhere, at exit 201 for Iowa 21, there are competing truck stops on either side of the freeway. A hotel is located on the northern side of the interstate.[3]

Eastern Iowa

A farm implement manufacturer advertises its business along I-80 by creating sculptures

Now in Iowa County, I-80 continues towards the eastern end of the 50-mile (80 km) stretch of straight highway. It turns slightly to the southeast near the Ladora exit. It straightens again at the Marengo interchange, which is the location of a manufacturer that advertises its business to passing travelers by arranging farm implements into sculptures.[17] A few miles east, in Williamsburg, is the northern end of Iowa 149. The Williamsburg exit is the location of a Tanger Outlet Mall. The next interchange marks the national southern end of US 151. Both the Iowa 149 and US 151 interchanges serve the Amana Colonies which are located 10 miles (16 km) to the north.[3]

As I-80 enters the Iowa City area, the speed limit drops to 65 mph (105 km/h).[18] On the edge of Coralville is an interchange with US 218 and Iowa 27, the Avenue of the Saints highway, that also represents the beginning of I-380, which heads north along US 218 and Iowa 27 towards Cedar Rapids and Waterloo.[3] The I-80 / I-380 interchange was identified as the most likely location in Iowa for a semi-trailer truck to overturn. Between 2001 and 2009, 33 trucks rolled over at the interchange. The Iowa DOT has plans to replace the cloverleaf interchange with a turbine interchange, but the project would not take place until around 2025.[19]

At the I-380 interchange, I-80 becomes a six-lane freeway. The Coral Ridge Avenue exit provides access to US 6, which passes beneath the interstate just before the interchange, and the eponymous shopping center located to the southeast. The First Avenue exit in Coralville and Dubuque Street exit in Iowa City direct University of Iowa traffic to different parts of the university campus. The Iowa River flows between the two interchanges and also marks the boundary between Coralville and Iowa City. On the Iowa City's east side are the Iowa 1 and Herbert Hoover Highway exits.[3] Between them, the highway drops back to four lanes and the speed limit increases back to 70 mph (110 km/h).[18]

As it enters Cedar County, it passes West Branch, the birthplace of and site of the library and museum of President Herbert Hoover. I approaches the Cedar River near the village of Rochester. Just east of the river crossing, Iowa 38 joins I-80 from the north. The county road that continues to the south from Iowa 38 leads to Moscow. The two highways travel together for Template:Convert/spell until they reach the Wilton area. Here, Iowa 38 exits to the south, while US 6 joins I-80 for the third and final time.[3]

A large building with a high-peaked roofline. A large neon sign reads "Iowa 80".
Interstate 80 passes the Iowa 80 truck stop near Walcott.

Before I-80 can reach the Quad Cities, it has to pass Walcott and Iowa 80, the World's Largest Truckstop.[20] The 65-acre (26 ha) truck stop has three restaurants, a gift shop, movie theater, museum, barber shop, and dentist on site.[21] Each year, the truck stop serves more than 2 million cups of coffee. Since it opened in 1965, it has served more than 64 million customers.[20]

As I-80 and US  approach the Quad Cities metropolitan area, the speed limit drops to 65 mph (105 km/h) for the final time.[22] Just within the city limits of Davenport is the I-280 interchange. US 6 exits to the south to join I-280 while I-80 is joined by US 61. I-80 and US 61 only share 5 miles (8.0 km) of freeway before it exits to its own freeway heading north. In between the two exits is an interchange with Northwest Boulevard, which marks the eastern end of Iowa 130. A couple miles east of the eastern US 61 interchange is the national western end of I-74. Because of the confusing interchange with I-74 and I-280 near Colona, Illinois, called "the Big X",[23] I-74 through traffic is urged to use I-80 around the Quad Cities to the Big X.[24] Near the Mississippi River, the interstate takes a sharp curve to the southeast to line up perpendicularly to the river. Just before the base of the bridge is an interchange with US 67, the last exit in Iowa. I-80 ends its 306-mile-long (492 km) journey through Iowa over the Mississippi River on the Fred Schwengel Memorial Bridge. It enters rural Rock Island County and continues towards Chicago.[3]

Services

The eastbound rest area facility near Adair

The Iowa DOT operates 37 rest areas and one scenic overlook in 20 locations along its 780 miles (1,260 km) of interstate highway. Along I-80, there are nine locations that have facilities for each direction of traffic. Parking areas are divided so passenger automobiles are separated from large trucks. Common among all of the rest stops are separate men's and women's restrooms, payphones with TDD capabilities, weather reporting kiosks, vending machines, and free wireless Internet. Many stations have family restrooms and dump stations for recreational vehicles.[25]

The first rest areas along Iowa's interstates were built in the 1960s. They were modest facilities; separate buildings housed the restrooms and vending machines. A few rest stops had another building with local tourist information.[26] On August 4, 1999, the first modern rest area opened along eastbound I-80 near Wilton. The new facilities feature one large building housing as many as 28 more toilets than the older buildings, in addition to all the other common rest area amenities. They also feature artwork by local Iowa artists.[27] Each new rest area is designed around a theme.[28] For instance, the facility near Adair is a tribute to the life of Henry A. Wallace, the 33rd Vice President of the United States, who was born in nearby Orient.[29][30]

History

Before the primary highway system was created in 1920, the Council Bluffs-to-Davenport, by way of Des Moines, corridor has always been important. Two roughly parallel auto trails, the Great White Way, and the River-to-River Road served cross-state traffic. The two routes were merged into one route, the Whiteway Highway, in 1922.[31] Four years later, the Whiteway Highway would become U.S. Route 32. The US 32 designation did not last long. In 1931, it was absorbed into an extended US 6, which had previously only existed in the Northeast. Within ten years, US 6 was the most-traveled road in Iowa, with an average of "1,920 cars a day at any given rural point."[32]

Iowa Turnpike

In 1954, Coverdale & Colpitts, a New York City-based engineering firm, on behalf of the Iowa State Highway Commission, reported on the feasibility of building an east–west toll road, to be called the Iowa Turnpike, across the state.[33] The firm found that the turnpike should closely parallel US 6 between Council Bluffs and Davenport. They concluded that the turnpike could be economically possible if $180 million ($2.05 billion in 2024[34]) in revenue bonds were issued at interest rates no higher than 3.5%.[35]

In early March 1955, the Iowa General Assembly debated the pros and cons on building a toll road. Proponents of the turnpike said it would be a self-financing project.[36] The feasibility report suggested tolls of 1.5 cents per mile (0.9 cents per kilometer),[33] which in 2024 is 17 cents per mile (11 cents per kilometer).[34] It was estimated that in 1953, the turnpike could have generated $5.9 million ($67.2 million in 2024[34]).[33] If traffic levels were not high enough to raise enough revenue, as the opponents of the project worried, the state would end up paying for the project, thus defeating the purpose of a toll road.[36]

The proposed highway was to run from Illinois Route 80 near Port Byron, Illinois, which ran along the eastern bank of the Mississippi River, over a new bridge into Iowa, to the South Omaha Bridge where US 275 crossed the Missouri River. The entire route was to be in close proximity to US 6 across the state. It was to be the first modern four-lane highway in the state,[33] with 12-foot-wide (3.7 m) lanes and an at least 15-foot wide (4.6 m) grassy median. Sixteen interchanges were planned along the route; an option to build a seventeenth, if necessary, was included. Eight service areas, similar in quality to those found on the Pennsylvania and New Jersey turnpikes, were planned as well.[33]

On April 29, 1955, an enabling act, which created the Iowa Toll Road Authority, came into effect giving the Authority the power to further study the feasibility of building a turnpike across the state. Before any construction was to begin, the authority was tasked with developing working relationships with neighboring states' toll road authorities. A provision in the enabling act prevented Iowa from issuing toll road bonds before neighboring states had issued similar bonds. Plans were stalled while Illinois's toll road commission worked out litigation regarding the financing of its bonds. Illinois was the only neighboring state to have a toll-road-planning body.[35]

Construction on the Iowa Turnpike would never begin. In January 1956, the Federal-Aid Highway Act of 1956 (H.R. 8836) was introduced in Congress. H.R. 8836 created the Interstate Highway System, a national system of controlled-access highways. President Dwight D. Eisenhower signed the bill into law on June 29, 1956. The new law was problematic for the Iowa Turnpike for a couple of reasons. Firstly, the law designated 700 miles (1,100 km) of controlled-access highway in Iowa, including a cross-state route in the vicinity of the turnpike's planned route. Secondly, the federal government was going to pay for ninety percent of the construction costs; states were only required to match ten percent of costs (however, tolls were generally prohibited). The Interstate Highway System's completeness and financing rendered the Iowa Turnpike obsolete before it was ever constructed.[35]

Construction

The first section of I-80 to open for traffic, 2+1⁄2 miles (4.0 km) from the I-35 / I-235 west mixmaster to the Douglas Avenue interchange in Urbandale opened on September 21, 1958. By the end of November 1959, the new interstate extended around the north side of Des Moines to US 69. Within a year, the east mixmaster, where I-35 splits away to the north, was opened. Construction was happening in each part of the state. By the end of 1960, 40 miles (64 km) from US 71 north of Atlantic to US 6 near Dexter, 20 miles (32 km) from I-35 to US 6 west of Newton, and 28 miles (45 km) from Iowa 38 near the Cedar River to US 61 in Davenport had opened to traffic.[1]

In eastern Iowa, new sections of road were opened in series. 1962 saw the eastern section was extended 20 miles west to Iowa City and the central section was extended 25 miles east to Grinnell. Iowa City's section of interstate was completed on November 15, 1963. A 60-mile-long (97 km) section, the longest section to be opened at one time, connected the two sections in October 1964. The easternmost section of I-80, from US 61 to US 67 at the Mississippi River, opened a month later. This gave the travelers nearly 185 miles (298 km) of uninterrupted freeway driving.[1]

Construction then moved to the western half of the state. A new 20-mile-long (32 km) section from US 71 west to US 59 north of Avoca opened in December 1965. A year later, the interstate was 90% completed. That is when a 50-mile-long (80 km) stretch from US 59 to I-29, which included 16 miles (26 km) of I-80N and the missing 25-mile-long (40 km) section between the western section and Des Moines each opened to traffic. Sections of I-80 in the Council Bluffs area did not open for another couple years. A short section between Madison Avenue and US 6 opened in 1968. The interstate was completed from the eastern junction with I-29 to I-80N in late December 1969.[1]

On both sides of the state, the respective river crossings opened to traffic nearly two years later than the connecting highways. Near LeClaire, the Fred Schwengel Memorial Bridge over the Mississippi River opened in 1966 after the highway had been completed to US 67, which runs at the foot of the bridge, in 1964. In Council Bluffs, the Missouri River crossing opened on December 15, 1972, while the approach to the bridge opened in November 1970. The Missouri River bridge's completion marked the end of the 14 years it took to construct Interstate 80.[1]

Reconstruction

Traffic levels on I-80 had already reached the road's design capacity by the 1980s. As a result, the highway was in need of significant repairs and Iowa's interstate maintenance program was lagging behind. One section, 16.2 miles (26.1 km) from CR F90 near Earlham to the western junction with I-35, needed $500 thousand ($1.34 million in 2024[34]) in annual repairs.[37] Funds for needed interstate repair became available in 1985 when President Ronald Reagan signed a bill that freed up $7 billion ($19.8 billion in 2024[34]) from the Highway Trust Fund, the national mechanism for funding repairs to the Interstate Highway System.[38] Under the law, Iowa was slated to receive $200 million per year ($567 million in 2024[34]) for its interstates.[37]

Reconstruction across the state took place in phases. Road crews worked in roughly 15-mile-long (24 km) zones divided into smaller sections. In each section, one direction of highway would be closed down while the other direction became a two-lane, two-direction road. When one section was completed, the crew would move on to the next section, thus keeping the entire zone from being closed at once.[39] Iowa was not alone in its needed repairs to I-80. The Automobile Association of America reported that nearly every state along I-80 had reports of road work. In Iowa, though, there were two sections in 1988 which were particularly troublesome for travelers. The I-680 interchange near Neola was closed, so I-680-bound traffic was forced to travel through Neola on Iowa 191 to reach that highway. Another bottleneck occurred near Williamsburg, where it was a two-lane road for Template:Convert/spell.[40]

Another problem for travelers hoping to avoid the construction on I-80 was the lack of east–west, four-lane highways in Iowa. The nearest interstates, I-70 and I-90 were far across state lines in Missouri and Minnesota, respectively. One traveler, interviewed by The Des Moines Register, who was traveling back to Iowa from New York, sought to avoid I-80's construction woes entirely by driving through Canada.[40]

Exit list

CountyLocationmi[2]kmExit[41]DestinationsNotes
DouglasOmaha
 I-80 west
Missouri River0.0000.000Nebraska–Iowa state line
PottawattamieCouncil Bluffs0.7191.1571A
 I-29 north – Sioux City		West end of I-29 overlap
1.6802.7041BSouth 24th Street – Council Bluffs
3.1335.0423
 Iowa 192 north – Council Bluffs Business District, Lake Manawa
3.8376.1754
 I-29 south – Kansas City		East end of I-29 overlap
5.1748.3275Madison Avenue – Council Bluffs
8.54813.7578 US 6 – Oakland, Council Bluffs
Underwood17.54028.22817 CR G30 – Underwood
Neola23.22837.38223 CR L55 – Neola
Minden Township27.52044.28927
 I-680 west – North Omaha, Sioux City
29.50447.48229 CR L66 – Minden
Shelby34.45155.44434 CR M16 – Shelby
Avoca40.40465.02440 US 59 – Avoca, Harlan
Walnut46.34174.57946 CR M47 (Antique City Drive) – Walnut
CassBrighton Township51.75083.28451 CR M56 – Marne
54.76288.13154 Iowa 173 – Atlantic, Elk Horn
Pymosa Township57.69792.85457 CR N16 – Atlantic
60.70897.70060
 US 6 west / US 71 – Audubon, Villisca, Atlantic		West end of US 6 overlap
Benton Township64.694104.11564 CR N28 – Wiota
Grant Township70.426113.34070
 Iowa 148 south – Anita, Exira
AdairAdair75.688121.80875 CR G30
76.427122.99776 CR N54 – Adair
Casey82.585132.90883 CR N77 (Antique Country Drive) – Casey
Jefferson Township86.357138.97886 Iowa 25 – Guthrie Center, Greenfield
88.346142.17988 CR P20 – Menlo
Stuart93.396150.30693 CR P28 – Stuart, Panora
Lincoln Township97.387156.72997 CR P48 – Dexter
Madison
 No major junctions
DallasDexter100.293161.406100Redfield, DexterFormer US 6
Adams Township104.170167.645104 CR P57 – Earlham
106.566171.501106 CR P58 / CR F90
De Soto110.255177.438110
 US 6 east / US 169 – Adel, Winterset		East end of US 6 overlap
Van Meter113.363182.440113 CR R16 – Van Meter
Waukee117.282188.747117 CR R22 – Waukee, Booneville
Alice's Road, 105th StreetInterchange to open late 2013 or 2014[12]
West Des Moines121.562195.635121Jordan Creek Parkway – West Des Moines
122.517197.17212260th Street – West Des MoinesEastbound exit and westbound entrance
Polk123.205198.279123

 I-35 south / I-235 east – West Des Moines, Des Moines, Kansas City		West end of I-35 overlap
123.773199.193124University Avenue – Clive
Clive124.770200.798125 US 6 (Hickman Road) – Adel
Urbandale125.777202.418126Douglas Avenue – Urbandale
127.174204.667127
 Iowa 141 west – Urbandale, Grimes
129.150207.847129Northwest 86th Street – Camp Dodge
Johnston131.158211.078131
 Iowa 28 south (Merle Hay Road) – Saylorville Lake
Saylor Township134.949217.179135 Iowa 415 (2nd Avenue) – Polk City
136.197219.188136 US 69 (East 14th Street) – Ankeny
Ankeny137.490221.269137

 I-35 north / I-235 west – Des Moines, Minneapolis		East end of I-35 overlap
Altoona140.336225.849141
 US 65 south – Altoona, Pleasant Hill, Des Moines		West end of US 65 overlap
141.733228.097142

 US 6 west / US 65 north – Altoona, Bondurant, Marshalltown		East end of US 65 overlap; west end of US 6 overlap
Bondurant143.375230.740143Altoona, Bondurant
Mitchellville148.511239.005149Mitchellville
JasperColfax154.862249.226155 Iowa 117 – Mingo, Colfax
Sherman Township158.535255.137159 CR F48 – Baxter
Newton163.969263.883164
 US 6 east / Iowa 14 – Newton, Monroe		East end of US 6 overlap
167.965270.313168Iowa Speedway Drive – Newton
Buena Vista Township172.996278.410173
 Iowa 224 north – Sully, Kellogg
Rock Creek Township178.733287.643179Lynnville, Oakland Acres
PoweshiekGrinnell182.169293.173182 Iowa 146 – Grinnell, New Sharon
Montezuma191.311307.885191 US 63 – Montezuma, Tama
Bear Creek Township196.852316.803197Brooklyn
Warren Township201.375324.082201 Iowa 21 – Belle Plaine, What Cheer
IowaHartford Township205.421330.593205Victor
Sumner Township211.474340.334211Millersburg, Ladora
216.483348.396216Marengo, North English
Williamsburg219.491353.237220

 Iowa 149 south / CR V77 north – Williamsburg, Parnell
Iowa Township224.518361.327225

 US 151 north / CR W21 south – Amana Colonies, Cedar Rapids
JohnsonOxford Township230.072370.265230 CR W38 – Oxford, Kalona
Tiffin237.236381.794237Tiffin
Coralville238.698384.147239
 I-380 north / US 218 / Iowa 27 – Cedar Rapids, Waterloo, Mount Pleasant, Keokuk		Avenue of the Saints; signed as exits 239A (south) and 239B (north)
240.237386.624240
 To US 6 (Coral Ridge Avenue) – North Liberty, Coralville
242.592390.4142421st Avenue
Iowa City244.878394.093244Dubuque Street
245.975395.858246 Iowa 1 (Dodge Street) – Mount Vernon
Scott Township248.992400.714249Herbert Hoover Highway
CedarWest Branch254.200409.095254 CR X30 – West BranchHerbert Hoover Presidential Library
Springdale Township259.230417.190259West Liberty
Iowa Township264.482425.643265Atalissa
Rochester Township266.431428.779267
 Iowa 38 north – Tipton, Moscow		West end of Iowa 38 overlap
Sugar Creek Township270.570435.440271

 US 6 west / Iowa 38 south – Wilton, Muscatine		East end of Iowa 38 overlap; west end of US 6 overlap
Farmington Township276.634445.199277Bennett, Durant
ScottCleona Township279.667450.080280 CR Y30 – New Liberty, Stockton
Walcott283.902456.896284 CR Y40 – Walcott, Plain View
Davenport289.560466.002290


 I-280 east / US 6 east / US 61 south – Moline, Rock Island		East end of US 6 overlap; West end of US 61 overlap; left exit westbound
292.517470.760292
 Iowa 130 west (Northwest Boulevard) – Maysville
295.092474.905295

 US 61 north / US 61 Bus. (Brady Street) – DeWitt, Eldridge		East end of US 61 overlap; signed as exits 295A (south) and 295B (north)
297.428478.664298
 I-74 east – Bettendorf, Davenport
Bettendorf300.863484.192301Middle Road
LeClaire306.022492.495306 US 67 / Great River Road – Bettendorf, LeClaire
Mississippi River306.268492.891Fred Schwengel Memorial Bridge; Iowa–Illinois state line
Rock IslandHampton Township
 I-80 east – Chicago
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

  1. ^ a b c d e f Completion Map of Interstate System (PDF) (Map). Iowa Department of Transportation. January 1, 1982. Retrieved October 12, 2011.
  2. ^ a b c 2010 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2010. Retrieved August 9, 2011.
  3. ^ a b c d e f g h i j k l m n o p q Google (August 9, 2012). "Interstate 80 in Iowa" (Map). Google Maps. Google. Retrieved August 9, 2012.
  4. ^ Staff (March 29, 2010). "Population grows in I-80, U.S. 30 corridors". Daily Times Herald. Carroll, Iowa. Retrieved August 12, 2012.
  5. ^ a b c Council Bluffs Interstate Speed Limits (Map). Iowa Department of Transportation. July 1, 2005. Retrieved August 9, 2012.
  6. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1932. § L7–M9. Retrieved August 9, 2012. {{cite map}}: Unknown parameter |month= ignored (help)
  7. ^ a b Iowa State Highway Map (PDF) (Map). Iowa Department of Transportation. 1980. § D3. Retrieved August 9, 2012.
  8. ^ Iowa State Highway Map (PDF) (Map). Iowa Department of Transportation. 1981. § D3. Retrieved August 9, 2012.
  9. ^ Banusiewicz, John D. (November 17, 2003). "Artist Turns Iowa Graffiti Rock into Military Tribute". United States Department of Defense News. Washington, D.C.: American Forces Press Service. Retrieved August 9, 2012.
  10. ^ "Getting Here & Around". Winterset, Iowa: Madison County Chamber of Commerce. Retrieved August 10, 2012.
  11. ^ "Directions to the John Wayne Birthplace". Winterset, Iowa: The John Wayne Birthplace. Retrieved August 10, 2012.
  12. ^ a b Paseka, Nicole (January 19, 2012). "New I-80 interchange plan approved". The Des Moines Register. Retrieved January 19, 2012.
  13. ^ Des Moines Urban Area (Map). Iowa Department of Transportation. January 2008. Retrieved August 10, 2012.
  14. ^ "Iowa’'s Interstate System". Iowa Department of Transportation. July 2005. Retrieved August 10, 2012. {{cite web}}: C1 control character in |title= at position 5 (help)
  15. ^ Sleyster, Sara (May 18, 2010). "Patching I-35/80, Iowa 141 Area Is Top Urbandale Concern". The Des Moines Register. p. 1 (News).
  16. ^ a b "Iowa Geographic Map Server". Jasper County. Iowa State University. Retrieved August 11, 2012.
  17. ^ Fitzgerald, Anne (May 8, 2005). "Kinze's Blueprint Sows Success". The Des Moines Register. p. 1 (Metro).
  18. ^ a b Iowa City Area Interstate Speed Limits (Map). Iowa Department of Transportation. July 1, 2005. Retrieved August 12, 2012.
  19. ^ Staff (May 11, 2012). "Interstate 380/80 Interchange Worst Heavy Truck Rollover Spot in Iowa". The Gazette. Cedar Rapids, Iowa. Retrieved August 11, 2012.
  20. ^ a b Webley, Kayla (July 28, 2010). "World's Largest Truck Stop; Walcott, IA". Time. Retrieved August 11, 2012.
  21. ^ Guy, Catherine (1999). "Iowa-80 Truck Stop a City in Itself". The Dispatch / The Rock Island Argus. Moline, Illinois. Progress 99. Retrieved August 12, 2012.
  22. ^ Quad Cities Interstate Speed Limits (Map). Iowa Department of Transportation. July 1, 2005. Retrieved August 12, 2012.
  23. ^ Hammer, Lisa (February 13, 2012). "Colona turns its eye to the X". The Dispatch / The Rock Island Argus. Moline, Illinois. Retrieved August 12, 2012.
  24. ^ Iowa Department of Transportation (2010). To I-74 east (Gantry sign). Davenport, Iowa. Retrieved August 12, 2012.
  25. ^ Office of Maintenance. "Iowa Interstate Rest Areas". Iowa Department of Transportation. Retrieved August 10, 2012.
  26. ^ Google (August 10, 2012). "Satellite view of two older rest areas near Victor" (Map). Google Maps. Google. Retrieved August 10, 2012.
  27. ^ Petroski, William (July 30, 1999). "State-of-the-Art Rest Stop to Make Its Debut; New Facility Has Welcome Center, Bank of Vending Machines". The Des Moines Register. p. 8 (Metro).
  28. ^ Office of Maintenance. "Iowa Interstate Rest Area Posters". Iowa Department of Transportation. Retrieved August 10, 2012.
  29. ^ "The Greatest Story Never Told" (PDF). near Adair, Iowa: Iowa Department of Transportation. Retrieved August 10, 2012.
  30. ^ "Papers of Henry A. Wallace". The University of Iowa Libraries. 2003. Retrieved August 10, 2012.
  31. ^ "Iowa Registered Routes". Iowa Department of Transportation. Retrieved August 8, 2012.
  32. ^ "Highway No. 6 found to be Iowa's most-traveled road". Des Moines Tribune. Des Moines, Iowa. May 5, 1941.
  33. ^ a b c d e Coverdale & Colpitts (July 20, 1954). Initial Feasibility Report on the Proposed Iowa Turnpike (Report). Iowa State Highway Commission.
  34. ^ a b c d e f 1634–1699: McCusker, J. J. (1997). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States: Addenda et Corrigenda (PDF). American Antiquarian Society. 1700–1799: McCusker, J. J. (1992). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States (PDF). American Antiquarian Society. 1800–present: Federal Reserve Bank of Minneapolis. "Consumer Price Index (estimate) 1800–". Retrieved February 29, 2024.
  35. ^ a b c "Journal of the House of the Fifty-Seventh General Assembly". State of Iowa. 1957: 45–48. Retrieved August 8, 2012. {{cite journal}}: Cite journal requires |journal= (help)
  36. ^ a b "Toll Road for Iowa Debated". The Daily Reporter. Spencer, Iowa. AP. March 8, 1955. Retrieved August 8, 2012.
  37. ^ a b Westphal, David (December 1, 1987). "Iowa Gets Grant to Resurface Stretch of I-80". The Des Moines Register. p. 1 (Metro).
  38. ^ Coyle, Marcia (March 14, 1985). "President Signs Bill Freeing I-78 Funds". The Morning Call. Allentown, Pennsylvania. Retrieved August 10, 2012.
  39. ^ Staff (April 29, 1987). "I-80 Repairs in Cass County Will Slow Down Travelers". The Des Moines Register. p. 1 (Metro).
  40. ^ a b Shotwell, Walt (July 3, 1988). "I-80 Resembles Obstacle Course". The Des Moines Register. p. 2 (section F).
  41. ^ Transportation Map (PDF) (Map). Iowa Department of Transportation. 2010. Retrieved September 9, 2010.
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Interstate 80
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